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authorunknown <brian@zim.(none)>2005-04-26 18:19:54 -0700
committerunknown <brian@zim.(none)>2005-04-26 18:19:54 -0700
commitb7e422be1b7a8ca3f4e761e67db5e8febc701dfd (patch)
treedf9016f3d70b4657f89dcddca2ec4e188fc7fbdf /innobase/btr
parentc0333ecee42a4de499b3377cfa21d7b5af1ddd2b (diff)
downloadmariadb-git-b7e422be1b7a8ca3f4e761e67db5e8febc701dfd.tar.gz
Changes to create storage directory for storage engines.
storage/heap/.cvsignore: mvdir storage/heap/ChangeLog: mvdir storage/heap/Makefile.am: mvdir storage/heap/_check.c: mvdir storage/heap/_rectest.c: mvdir storage/heap/heapdef.h: mvdir storage/heap/hp_block.c: mvdir storage/heap/hp_clear.c: mvdir storage/heap/hp_close.c: mvdir storage/heap/hp_create.c: mvdir storage/heap/hp_delete.c: mvdir storage/heap/hp_extra.c: mvdir storage/heap/hp_hash.c: mvdir storage/heap/hp_info.c: mvdir storage/heap/hp_open.c: mvdir storage/heap/hp_panic.c: mvdir storage/heap/hp_rename.c: mvdir storage/heap/hp_rfirst.c: mvdir storage/heap/hp_rkey.c: mvdir storage/heap/hp_rlast.c: mvdir storage/heap/hp_rnext.c: mvdir storage/heap/hp_rprev.c: mvdir storage/heap/hp_rrnd.c: mvdir storage/heap/hp_rsame.c: mvdir storage/heap/hp_scan.c: mvdir storage/heap/hp_static.c: mvdir storage/heap/hp_test1.c: mvdir storage/heap/hp_test2.c: mvdir storage/heap/hp_update.c: mvdir storage/heap/hp_write.c: mvdir storage/heap/make-ccc: mvdir storage/myisam/.cvsignore: mvdir storage/myisam/ChangeLog: mvdir storage/myisam/Makefile.am: mvdir storage/myisam/NEWS: mvdir storage/myisam/TODO: mvdir storage/myisam/ft_boolean_search.c: mvdir storage/myisam/ft_eval.c: mvdir storage/myisam/ft_eval.h: mvdir storage/myisam/ft_nlq_search.c: mvdir storage/myisam/ft_parser.c: mvdir storage/myisam/ft_static.c: mvdir storage/myisam/ft_stem.c: mvdir storage/myisam/ft_stopwords.c: mvdir storage/myisam/ft_test1.c: mvdir storage/myisam/ft_test1.h: mvdir storage/myisam/ft_update.c: mvdir storage/myisam/ftdefs.h: mvdir storage/myisam/fulltext.h: mvdir storage/myisam/make-ccc: mvdir storage/myisam/mi_cache.c: mvdir storage/myisam/mi_changed.c: mvdir storage/myisam/mi_check.c: mvdir storage/myisam/mi_checksum.c: mvdir storage/myisam/mi_close.c: mvdir storage/myisam/mi_create.c: mvdir storage/myisam/mi_dbug.c: mvdir storage/myisam/mi_delete.c: mvdir storage/myisam/mi_delete_all.c: mvdir storage/myisam/mi_delete_table.c: mvdir storage/myisam/mi_dynrec.c: mvdir storage/myisam/mi_extra.c: mvdir storage/myisam/mi_info.c: mvdir storage/myisam/mi_key.c: mvdir storage/myisam/mi_keycache.c: mvdir storage/myisam/mi_locking.c: mvdir storage/myisam/mi_log.c: mvdir storage/myisam/mi_open.c: mvdir storage/myisam/mi_packrec.c: mvdir storage/myisam/mi_page.c: mvdir storage/myisam/mi_panic.c: mvdir storage/myisam/mi_preload.c: mvdir storage/myisam/mi_range.c: mvdir storage/myisam/mi_rename.c: mvdir storage/myisam/mi_rfirst.c: mvdir storage/myisam/mi_rkey.c: mvdir storage/myisam/mi_rlast.c: mvdir storage/myisam/mi_rnext.c: mvdir storage/myisam/mi_rnext_same.c: mvdir storage/myisam/mi_rprev.c: mvdir storage/myisam/mi_rrnd.c: mvdir storage/myisam/mi_rsame.c: mvdir storage/myisam/ftbench/Ecompare.pl: mvdir storage/myisam/ftbench/Ecreate.pl: mvdir storage/myisam/ftbench/Ereport.pl: mvdir storage/myisam/ftbench/README: mvdir storage/myisam/ftbench/ft-test-run.sh: mvdir storage/myisam/mi_rsamepos.c: mvdir storage/myisam/mi_scan.c: mvdir storage/myisam/mi_search.c: mvdir storage/myisam/mi_static.c: mvdir storage/myisam/mi_statrec.c: mvdir storage/myisam/mi_test1.c: mvdir storage/myisam/mi_test2.c: mvdir storage/myisam/mi_test3.c: mvdir storage/myisam/mi_test_all.res: mvdir storage/myisam/mi_test_all.sh: mvdir storage/myisam/mi_unique.c: mvdir storage/myisam/mi_update.c: mvdir storage/myisam/mi_write.c: mvdir storage/myisam/myisam_ftdump.c: mvdir storage/myisam/myisamchk.c: mvdir storage/myisam/myisamdef.h: mvdir storage/myisam/myisamlog.c: mvdir storage/myisam/myisampack.c: mvdir storage/myisam/rt_index.c: mvdir storage/myisam/rt_index.h: mvdir storage/myisam/rt_key.c: mvdir storage/myisam/rt_key.h: mvdir storage/myisam/rt_mbr.c: mvdir storage/myisam/rt_mbr.h: mvdir storage/myisam/rt_split.c: mvdir storage/myisam/rt_test.c: mvdir storage/myisam/sort.c: mvdir storage/myisam/sp_defs.h: mvdir storage/myisam/sp_key.c: mvdir storage/myisam/sp_test.c: mvdir storage/myisam/test_pack: mvdir storage/myisammrg/.cvsignore: mvdir storage/myisammrg/Makefile.am: mvdir storage/myisammrg/make-ccc: mvdir storage/myisammrg/myrg_close.c: mvdir storage/myisammrg/myrg_create.c: mvdir storage/myisammrg/myrg_def.h: mvdir storage/myisammrg/myrg_delete.c: mvdir storage/myisammrg/myrg_extra.c: mvdir storage/myisammrg/myrg_info.c: mvdir storage/myisammrg/myrg_locking.c: mvdir storage/myisammrg/myrg_open.c: mvdir storage/myisammrg/myrg_panic.c: mvdir storage/myisammrg/myrg_queue.c: mvdir storage/myisammrg/myrg_range.c: mvdir storage/myisammrg/myrg_rfirst.c: mvdir storage/myisammrg/myrg_rkey.c: mvdir storage/myisammrg/myrg_rlast.c: mvdir storage/myisammrg/myrg_rnext.c: mvdir storage/myisammrg/myrg_rnext_same.c: mvdir storage/myisammrg/myrg_rprev.c: mvdir storage/myisammrg/myrg_rrnd.c: mvdir storage/myisammrg/myrg_rsame.c: mvdir storage/myisammrg/myrg_static.c: mvdir storage/myisammrg/myrg_update.c: mvdir storage/myisammrg/myrg_write.c: mvdir storage/innobase/Makefile.am: mvdir storage/innobase/btr/Makefile.am: mvdir storage/innobase/btr/btr0btr.c: mvdir storage/innobase/btr/btr0cur.c: mvdir storage/innobase/btr/btr0pcur.c: mvdir storage/innobase/btr/btr0sea.c: mvdir storage/innobase/btr/makefilewin: mvdir storage/innobase/buf/Makefile.am: mvdir storage/innobase/buf/buf0buf.c: mvdir storage/innobase/buf/buf0flu.c: mvdir storage/innobase/buf/buf0lru.c: mvdir storage/innobase/buf/buf0rea.c: mvdir storage/innobase/buf/makefilewin: mvdir storage/innobase/configure.in: mvdir storage/innobase/data/Makefile.am: mvdir storage/innobase/data/data0data.c: mvdir storage/innobase/data/data0type.c: mvdir storage/innobase/data/makefilewin: mvdir storage/innobase/db/db0err.h: mvdir storage/innobase/dict/Makefile.am: mvdir storage/innobase/dict/dict0boot.c: mvdir storage/innobase/dict/dict0crea.c: mvdir storage/innobase/dict/dict0dict.c: mvdir storage/innobase/dict/dict0load.c: mvdir storage/innobase/makefilewin: mvdir storage/innobase/my_cnf: mvdir storage/innobase/dict/dict0mem.c: mvdir storage/innobase/dict/makefilewin: mvdir storage/innobase/dyn/Makefile.am: mvdir storage/innobase/dyn/dyn0dyn.c: mvdir storage/innobase/dyn/makefilewin: mvdir storage/innobase/eval/Makefile.am: mvdir storage/innobase/eval/eval0eval.c: mvdir storage/innobase/eval/eval0proc.c: mvdir storage/innobase/eval/makefilewin: mvdir storage/innobase/fil/Makefile.am: mvdir storage/innobase/fil/fil0fil.c: mvdir storage/innobase/fil/makefilewin: mvdir storage/innobase/fsp/Makefile.am: mvdir storage/innobase/fsp/fsp0fsp.c: mvdir storage/innobase/fsp/makefilewin: mvdir storage/innobase/fut/Makefile.am: mvdir storage/innobase/fut/fut0fut.c: mvdir storage/innobase/fut/fut0lst.c: mvdir storage/innobase/fut/makefilewin: mvdir storage/innobase/ha/Makefile.am: mvdir storage/innobase/ha/ha0ha.c: mvdir storage/innobase/ha/hash0hash.c: mvdir storage/innobase/ha/makefilewin: mvdir storage/innobase/ibuf/Makefile.am: mvdir storage/innobase/ibuf/ibuf0ibuf.c: mvdir storage/innobase/ibuf/makefilewin: mvdir storage/innobase/include/Makefile.am: mvdir storage/innobase/include/Makefile.i: mvdir storage/innobase/include/btr0btr.h: mvdir storage/innobase/include/btr0btr.ic: mvdir storage/innobase/include/btr0cur.h: mvdir storage/innobase/include/btr0cur.ic: mvdir storage/innobase/include/btr0pcur.h: mvdir storage/innobase/include/btr0pcur.ic: mvdir storage/innobase/include/btr0sea.h: mvdir storage/innobase/include/btr0sea.ic: mvdir storage/innobase/include/btr0types.h: mvdir storage/innobase/include/buf0buf.h: mvdir storage/innobase/include/buf0buf.ic: mvdir storage/innobase/include/buf0flu.h: mvdir storage/innobase/include/buf0flu.ic: mvdir storage/innobase/include/buf0lru.h: mvdir storage/innobase/include/buf0lru.ic: mvdir storage/innobase/include/buf0rea.h: mvdir storage/innobase/include/buf0types.h: mvdir storage/innobase/include/data0data.h: mvdir storage/innobase/include/data0data.ic: mvdir storage/innobase/include/data0type.h: mvdir storage/innobase/include/data0type.ic: mvdir storage/innobase/include/data0types.h: mvdir storage/innobase/include/db0err.h: mvdir storage/innobase/include/dict0boot.h: mvdir storage/innobase/include/dict0boot.ic: mvdir storage/innobase/include/dict0crea.h: mvdir storage/innobase/include/dict0crea.ic: mvdir storage/innobase/include/dict0dict.h: mvdir storage/innobase/include/dict0dict.ic: mvdir storage/innobase/include/dict0load.h: mvdir storage/innobase/include/dict0load.ic: mvdir storage/innobase/include/dict0mem.h: mvdir storage/innobase/include/dict0mem.ic: mvdir storage/innobase/include/dict0types.h: mvdir storage/innobase/include/dyn0dyn.h: mvdir storage/innobase/include/dyn0dyn.ic: mvdir storage/innobase/include/eval0eval.h: mvdir storage/innobase/include/eval0eval.ic: mvdir storage/innobase/include/eval0proc.h: mvdir storage/innobase/include/eval0proc.ic: mvdir storage/innobase/include/fil0fil.h: mvdir storage/innobase/include/fsp0fsp.h: mvdir storage/innobase/include/fsp0fsp.ic: mvdir storage/innobase/include/fut0fut.h: mvdir storage/innobase/include/fut0fut.ic: mvdir storage/innobase/include/fut0lst.h: mvdir storage/innobase/include/fut0lst.ic: mvdir storage/innobase/include/ha0ha.h: mvdir storage/innobase/include/ha0ha.ic: mvdir storage/innobase/include/hash0hash.h: mvdir storage/innobase/include/hash0hash.ic: mvdir storage/innobase/include/ibuf0ibuf.h: mvdir storage/innobase/include/ibuf0ibuf.ic: mvdir storage/innobase/include/ibuf0types.h: mvdir storage/innobase/include/lock0lock.h: mvdir storage/innobase/include/lock0lock.ic: mvdir storage/innobase/include/lock0types.h: mvdir storage/innobase/include/log0log.h: mvdir storage/innobase/include/log0log.ic: mvdir storage/innobase/include/log0recv.h: mvdir storage/innobase/include/log0recv.ic: mvdir storage/innobase/include/mach0data.h: mvdir storage/innobase/include/mach0data.ic: mvdir storage/innobase/include/makefilewin.i: mvdir storage/innobase/include/mem0dbg.h: mvdir storage/innobase/include/mem0dbg.ic: mvdir storage/innobase/include/mem0mem.h: mvdir storage/innobase/include/mem0mem.ic: mvdir storage/innobase/include/mem0pool.h: mvdir storage/innobase/include/mem0pool.ic: mvdir storage/innobase/include/mtr0log.h: mvdir storage/innobase/include/mtr0log.ic: mvdir storage/innobase/include/mtr0mtr.h: mvdir storage/innobase/include/mtr0mtr.ic: mvdir storage/innobase/include/mtr0types.h: mvdir storage/innobase/include/os0file.h: mvdir storage/innobase/include/os0proc.h: mvdir storage/innobase/include/os0proc.ic: mvdir storage/innobase/include/os0sync.h: mvdir storage/innobase/include/os0sync.ic: mvdir storage/innobase/include/os0thread.h: mvdir storage/innobase/include/os0thread.ic: mvdir storage/innobase/include/page0cur.h: mvdir storage/innobase/include/page0cur.ic: mvdir storage/innobase/include/page0page.h: mvdir storage/innobase/include/page0page.ic: mvdir storage/innobase/include/page0types.h: mvdir storage/innobase/include/pars0grm.h: mvdir storage/innobase/include/pars0opt.h: mvdir storage/innobase/include/pars0opt.ic: mvdir storage/innobase/include/pars0pars.h: mvdir storage/innobase/include/pars0pars.ic: mvdir storage/innobase/include/pars0sym.h: mvdir storage/innobase/include/pars0sym.ic: mvdir storage/innobase/include/pars0types.h: mvdir storage/innobase/include/que0que.h: mvdir storage/innobase/include/que0que.ic: mvdir storage/innobase/include/que0types.h: mvdir storage/innobase/include/read0read.h: mvdir storage/innobase/include/read0read.ic: mvdir storage/innobase/include/read0types.h: mvdir storage/innobase/include/rem0cmp.h: mvdir storage/innobase/include/rem0cmp.ic: mvdir storage/innobase/include/rem0rec.h: mvdir storage/innobase/include/rem0rec.ic: mvdir storage/innobase/include/rem0types.h: mvdir storage/innobase/include/row0ins.h: mvdir storage/innobase/include/row0ins.ic: mvdir storage/innobase/include/row0mysql.h: mvdir storage/innobase/include/row0mysql.ic: mvdir storage/innobase/include/row0purge.h: mvdir storage/innobase/include/row0purge.ic: mvdir storage/innobase/include/row0row.h: mvdir storage/innobase/include/row0row.ic: mvdir storage/innobase/include/row0sel.h: mvdir storage/innobase/include/row0sel.ic: mvdir storage/innobase/include/row0types.h: mvdir storage/innobase/include/row0uins.h: mvdir storage/innobase/include/row0uins.ic: mvdir storage/innobase/include/row0umod.h: mvdir storage/innobase/include/row0umod.ic: mvdir storage/innobase/include/row0undo.h: mvdir storage/innobase/include/row0undo.ic: mvdir storage/innobase/include/row0upd.h: mvdir storage/innobase/include/row0upd.ic: mvdir storage/innobase/include/row0vers.h: mvdir storage/innobase/include/row0vers.ic: mvdir storage/innobase/include/srv0que.h: mvdir storage/innobase/include/srv0srv.h: mvdir storage/innobase/include/srv0srv.ic: mvdir storage/innobase/include/srv0start.h: mvdir storage/innobase/include/sync0arr.h: mvdir storage/innobase/include/sync0arr.ic: mvdir storage/innobase/include/sync0rw.h: mvdir storage/innobase/include/sync0rw.ic: mvdir storage/innobase/include/sync0sync.h: mvdir storage/innobase/include/sync0sync.ic: mvdir storage/innobase/include/sync0types.h: mvdir storage/innobase/include/thr0loc.h: mvdir storage/innobase/include/thr0loc.ic: mvdir storage/innobase/include/trx0purge.h: mvdir storage/innobase/include/trx0purge.ic: mvdir storage/innobase/include/trx0rec.h: mvdir storage/innobase/include/trx0rec.ic: mvdir storage/innobase/include/trx0roll.h: mvdir storage/innobase/include/trx0roll.ic: mvdir storage/innobase/include/trx0rseg.h: mvdir storage/innobase/include/trx0rseg.ic: mvdir storage/innobase/include/trx0sys.h: mvdir storage/innobase/include/trx0sys.ic: mvdir storage/innobase/include/trx0trx.h: mvdir storage/innobase/include/trx0trx.ic: mvdir storage/innobase/include/trx0types.h: mvdir storage/innobase/include/trx0undo.h: mvdir storage/innobase/include/trx0undo.ic: mvdir storage/innobase/include/trx0xa.h: mvdir storage/innobase/include/univ.i: mvdir storage/innobase/include/usr0sess.h: mvdir storage/innobase/include/usr0sess.ic: mvdir storage/innobase/include/usr0types.h: mvdir storage/innobase/include/ut0byte.h: mvdir storage/innobase/include/ut0byte.ic: mvdir storage/innobase/include/ut0dbg.h: mvdir storage/innobase/include/ut0lst.h: mvdir storage/innobase/include/ut0mem.h: mvdir storage/innobase/include/ut0mem.ic: mvdir storage/innobase/include/ut0rnd.h: mvdir storage/innobase/include/ut0rnd.ic: mvdir storage/innobase/include/ut0sort.h: mvdir storage/innobase/include/ut0ut.h: mvdir storage/innobase/include/ut0ut.ic: mvdir storage/innobase/lock/Makefile.am: mvdir storage/innobase/lock/lock0lock.c: mvdir storage/innobase/lock/makefilewin: mvdir storage/innobase/log/Makefile.am: mvdir storage/innobase/log/log0log.c: mvdir storage/innobase/log/log0recv.c: mvdir storage/innobase/log/makefilewin: mvdir storage/innobase/mach/Makefile.am: mvdir storage/innobase/mach/mach0data.c: mvdir storage/innobase/mach/makefilewin: mvdir storage/innobase/mem/Makefile.am: mvdir storage/innobase/mem/makefilewin: mvdir storage/innobase/mem/mem0dbg.c: mvdir storage/innobase/mem/mem0mem.c: mvdir storage/innobase/mem/mem0pool.c: mvdir storage/innobase/mtr/Makefile.am: mvdir storage/innobase/mtr/makefilewin: mvdir storage/innobase/mtr/mtr0log.c: mvdir storage/innobase/mtr/mtr0mtr.c: mvdir storage/innobase/os/Makefile.am: mvdir storage/innobase/os/makefilewin: mvdir storage/innobase/os/os0file.c: mvdir storage/innobase/os/os0proc.c: mvdir storage/innobase/os/os0sync.c: mvdir storage/innobase/os/os0thread.c: mvdir storage/innobase/page/Makefile.am: mvdir storage/innobase/page/makefilewin: mvdir storage/innobase/page/page0cur.c: mvdir storage/innobase/page/page0page.c: mvdir storage/innobase/pars/Makefile.am: mvdir storage/innobase/pars/lexyy.c: mvdir storage/innobase/pars/makefilewin: mvdir storage/innobase/pars/pars0grm.c: mvdir storage/innobase/pars/pars0grm.h: mvdir storage/innobase/pars/pars0grm.y: mvdir storage/innobase/pars/pars0lex.l: mvdir 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storage/ndb/src/old_files/client/odbc/NdbOdbc.def: mvdir storage/ndb/src/old_files/client/odbc/codegen/CodeGen.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/CodeGen.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_base.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_base.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_column.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_column.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_comp_op.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_comp_op.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_create_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_create_index.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_create_row.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_create_row.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_create_table.cpp: mvdir 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mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_expr_param.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_expr_param.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_expr_row.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_expr_row.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_idx_column.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_idx_column.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_insert.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_insert.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_pred.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_pred.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_pred_op.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_pred_op.hpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_query.cpp: mvdir storage/ndb/src/old_files/client/odbc/codegen/Code_query.hpp: mvdir 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storage/ndb/src/old_files/client/odbc/driver/SQLStatistics.cpp: mvdir storage/ndb/src/old_files/client/odbc/driver/SQLTablePrivileges.cpp: mvdir storage/ndb/src/old_files/client/odbc/driver/SQLTables.cpp: mvdir storage/ndb/src/old_files/client/odbc/driver/SQLTransact.cpp: mvdir storage/ndb/src/old_files/client/odbc/driver/driver.cpp: mvdir storage/ndb/src/old_files/client/odbc/driver/driver.hpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_comp_op.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_create_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_create_table.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_delete_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_delete_lookup.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_delete_scan.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_drop_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_drop_table.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_expr_conv.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_expr_func.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_expr_op.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_insert.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_pred_op.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_query_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_query_lookup.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_query_range.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_query_scan.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_query_sys.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_update_index.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_update_lookup.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Exec_update_scan.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Executor.cpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Executor.hpp: mvdir storage/ndb/src/old_files/client/odbc/executor/Makefile: mvdir storage/ndb/src/old_files/client/odbc/handles/AttrDbc.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/AttrEnv.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/AttrRoot.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/AttrStmt.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/DescSpec.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/FuncTab.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleBase.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleBase.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleDbc.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleDbc.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleDesc.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleDesc.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleEnv.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleEnv.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleRoot.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleRoot.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleStmt.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/HandleStmt.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/InfoTab.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/Makefile: mvdir storage/ndb/src/old_files/client/odbc/handles/PoolNdb.cpp: mvdir storage/ndb/src/old_files/client/odbc/handles/PoolNdb.hpp: mvdir storage/ndb/src/old_files/client/odbc/handles/handles.hpp: mvdir storage/ndb/src/old_files/ndbbaseclient/Makefile: mvdir storage/ndb/src/old_files/ndbbaseclient/ndbbaseclient_dummy.cpp: mvdir storage/ndb/src/old_files/ndbclient/Makefile: mvdir storage/ndb/src/old_files/ndbclient/ndbclient_dummy.cpp: mvdir 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storage/ndb/src/old_files/rep/RepApiService.cpp: mvdir storage/ndb/src/old_files/rep/RepApiService.hpp: mvdir storage/ndb/src/old_files/rep/RepCommandInterpreter.cpp: mvdir storage/ndb/src/old_files/rep/RepCommandInterpreter.hpp: mvdir storage/ndb/src/old_files/rep/RepComponents.cpp: mvdir storage/ndb/src/old_files/rep/RepComponents.hpp: mvdir storage/ndb/src/old_files/rep/RepMain.cpp: mvdir storage/ndb/src/old_files/rep/Requestor.cpp: mvdir storage/ndb/src/old_files/rep/Requestor.hpp: mvdir storage/ndb/src/old_files/rep/RequestorSubscriptions.cpp: mvdir storage/ndb/src/old_files/rep/SignalQueue.cpp: mvdir storage/ndb/src/old_files/rep/SignalQueue.hpp: mvdir storage/ndb/src/old_files/rep/TODO: mvdir storage/ndb/src/old_files/rep/adapters/AppNDB.cpp: mvdir storage/ndb/src/old_files/rep/adapters/AppNDB.hpp: mvdir storage/ndb/src/old_files/rep/adapters/ExtAPI.cpp: mvdir storage/ndb/src/old_files/rep/adapters/ExtAPI.hpp: mvdir storage/ndb/src/old_files/rep/adapters/ExtNDB.cpp: mvdir storage/ndb/src/old_files/rep/adapters/ExtNDB.hpp: mvdir storage/ndb/src/old_files/rep/adapters/Makefile: mvdir storage/ndb/src/old_files/rep/adapters/TableInfoPs.hpp: mvdir storage/ndb/src/old_files/rep/dbug_hack.cpp: mvdir storage/ndb/src/old_files/rep/rep_version.hpp: mvdir storage/ndb/src/old_files/rep/repapi/Makefile: mvdir storage/ndb/src/old_files/rep/repapi/repapi.cpp: mvdir storage/ndb/src/old_files/rep/repapi/repapi.h: mvdir storage/ndb/src/old_files/rep/state/Channel.cpp: mvdir storage/ndb/src/old_files/rep/state/Channel.hpp: mvdir storage/ndb/src/old_files/rep/state/Interval.cpp: mvdir storage/ndb/src/old_files/rep/state/Interval.hpp: mvdir storage/ndb/src/old_files/rep/state/Makefile: mvdir storage/ndb/src/old_files/rep/state/RepState.cpp: mvdir storage/ndb/src/old_files/rep/state/RepState.hpp: mvdir storage/ndb/src/old_files/rep/state/RepStateEvent.cpp: mvdir storage/ndb/src/old_files/rep/state/RepStateRequests.cpp: mvdir storage/ndb/src/old_files/rep/state/testInterval/Makefile: mvdir storage/ndb/src/old_files/rep/state/testInterval/testInterval.cpp: mvdir storage/ndb/src/old_files/rep/state/testRepState/Makefile: mvdir storage/ndb/src/old_files/rep/state/testRepState/testRequestor.cpp: mvdir storage/ndb/src/old_files/rep/state/testRepState/testRequestor.hpp: mvdir storage/ndb/src/old_files/rep/storage/GCIBuffer.cpp: mvdir storage/ndb/src/old_files/rep/storage/GCIBuffer.hpp: mvdir storage/ndb/src/old_files/rep/storage/GCIContainer.cpp: mvdir storage/ndb/src/old_files/rep/storage/GCIContainer.hpp: mvdir storage/ndb/src/old_files/rep/storage/GCIContainerPS.cpp: mvdir storage/ndb/src/old_files/rep/storage/GCIContainerPS.hpp: mvdir storage/ndb/src/old_files/rep/storage/GCIPage.cpp: mvdir storage/ndb/src/old_files/rep/storage/GCIPage.hpp: mvdir storage/ndb/src/old_files/rep/storage/LogRecord.hpp: mvdir storage/ndb/src/old_files/rep/storage/Makefile: mvdir storage/ndb/src/old_files/rep/storage/NodeConnectInfo.hpp: mvdir storage/ndb/src/old_files/rep/storage/NodeGroup.cpp: mvdir storage/ndb/src/old_files/rep/storage/NodeGroup.hpp: mvdir storage/ndb/src/old_files/rep/storage/NodeGroupInfo.cpp: mvdir storage/ndb/src/old_files/rep/storage/NodeGroupInfo.hpp: mvdir storage/ndb/src/old_files/rep/transfer/Makefile: mvdir storage/ndb/src/old_files/rep/transfer/TransPS.cpp: mvdir storage/ndb/src/old_files/rep/transfer/TransPS.hpp: mvdir storage/ndb/src/old_files/rep/transfer/TransSS.cpp: mvdir storage/ndb/src/old_files/rep/transfer/TransSS.hpp: mvdir storage/ndb/src/old_files/rep/transfer/TransSSSubscriptions.cpp: mvdir storage/ndb/test/Makefile.am: mvdir storage/ndb/test/include/CpcClient.hpp: mvdir storage/ndb/test/include/HugoAsynchTransactions.hpp: mvdir storage/ndb/test/include/HugoCalculator.hpp: mvdir storage/ndb/test/include/HugoOperations.hpp: mvdir storage/ndb/test/include/HugoTransactions.hpp: mvdir storage/ndb/test/include/NDBT.hpp: mvdir storage/ndb/test/include/NDBT_DataSet.hpp: mvdir storage/ndb/test/include/NDBT_DataSetTransaction.hpp: mvdir storage/ndb/test/include/NDBT_Error.hpp: mvdir storage/ndb/test/include/NDBT_Output.hpp: mvdir storage/ndb/test/include/NDBT_ResultRow.hpp: mvdir storage/ndb/test/include/NDBT_ReturnCodes.h: mvdir storage/ndb/test/include/NDBT_Stats.hpp: mvdir storage/ndb/test/include/NDBT_Table.hpp: mvdir storage/ndb/test/include/NDBT_Tables.hpp: mvdir storage/ndb/test/include/NDBT_Test.hpp: mvdir storage/ndb/test/include/NdbBackup.hpp: mvdir storage/ndb/test/include/NdbConfig.hpp: mvdir storage/ndb/test/include/NdbGrep.hpp: mvdir storage/ndb/test/include/NdbRestarter.hpp: mvdir storage/ndb/test/include/NdbRestarts.hpp: mvdir storage/ndb/test/include/NdbSchemaCon.hpp: mvdir storage/ndb/test/include/NdbSchemaOp.hpp: mvdir storage/ndb/test/include/NdbTest.hpp: mvdir storage/ndb/test/include/NdbTimer.hpp: mvdir storage/ndb/test/include/TestNdbEventOperation.hpp: mvdir storage/ndb/test/include/UtilTransactions.hpp: mvdir storage/ndb/test/include/getarg.h: mvdir storage/ndb/test/ndbapi/InsertRecs.cpp: mvdir storage/ndb/test/ndbapi/Makefile.am: mvdir storage/ndb/test/ndbapi/ScanFilter.hpp: mvdir storage/ndb/test/ndbapi/ScanFunctions.hpp: mvdir storage/ndb/test/ndbapi/ScanInterpretTest.hpp: mvdir storage/ndb/test/ndbapi/TraceNdbApi.cpp: mvdir storage/ndb/test/ndbapi/VerifyNdbApi.cpp: mvdir storage/ndb/test/ndbapi/acid.cpp: mvdir storage/ndb/test/ndbapi/acid2.cpp: mvdir storage/ndb/test/ndbapi/adoInsertRecs.cpp: mvdir storage/ndb/test/ndbapi/asyncGenerator.cpp: mvdir storage/ndb/test/ndbapi/benchronja.cpp: mvdir storage/ndb/test/ndbapi/bulk_copy.cpp: mvdir storage/ndb/test/ndbapi/cdrserver.cpp: mvdir storage/ndb/test/ndbapi/celloDb.cpp: mvdir storage/ndb/test/ndbapi/create_all_tabs.cpp: mvdir storage/ndb/test/ndbapi/create_tab.cpp: mvdir storage/ndb/test/ndbapi/drop_all_tabs.cpp: mvdir storage/ndb/test/ndbapi/flexAsynch.cpp: mvdir storage/ndb/test/ndbapi/flexBench.cpp: mvdir storage/ndb/test/ndbapi/flexHammer.cpp: mvdir storage/ndb/test/ndbapi/flexScan.cpp: mvdir storage/ndb/test/ndbapi/flexTT.cpp: mvdir storage/ndb/test/ndbapi/flexTimedAsynch.cpp: mvdir storage/ndb/test/ndbapi/flex_bench_mysql.cpp: mvdir storage/ndb/test/ndbapi/index.cpp: mvdir storage/ndb/test/ndbapi/index2.cpp: mvdir storage/ndb/test/ndbapi/initronja.cpp: mvdir storage/ndb/test/ndbapi/interpreterInTup.cpp: mvdir storage/ndb/test/ndbapi/mainAsyncGenerator.cpp: mvdir storage/ndb/test/ndbapi/msa.cpp: mvdir storage/ndb/test/ndbapi/ndb_async1.cpp: mvdir storage/ndb/test/ndbapi/ndb_async2.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_populate.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction2.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction3.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction4.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction5.cpp: mvdir storage/ndb/test/ndbapi/ndb_user_transaction6.cpp: mvdir storage/ndb/test/ndbapi/restarter.cpp: mvdir storage/ndb/test/ndbapi/restarter2.cpp: mvdir storage/ndb/test/ndbapi/restarts.cpp: mvdir storage/ndb/test/ndbapi/size.cpp: mvdir storage/ndb/test/ndbapi/slow_select.cpp: mvdir storage/ndb/test/ndbapi/testBackup.cpp: mvdir storage/ndb/test/ndbapi/testBasic.cpp: mvdir storage/ndb/test/ndbapi/testBasicAsynch.cpp: mvdir storage/ndb/test/ndbapi/testBitfield.cpp: mvdir storage/ndb/test/ndbapi/testBlobs.cpp: mvdir storage/ndb/test/ndbapi/testDataBuffers.cpp: mvdir storage/ndb/test/ndbapi/testDeadlock.cpp: mvdir storage/ndb/test/ndbapi/testDict.cpp: mvdir storage/ndb/test/ndbapi/testGrep.cpp: mvdir storage/ndb/test/ndbapi/testGrepVerify.cpp: mvdir storage/ndb/test/ndbapi/testIndex.cpp: mvdir storage/ndb/test/ndbapi/testInterpreter.cpp: mvdir storage/ndb/test/ndbapi/testLcp.cpp: mvdir storage/ndb/test/ndbapi/testMgm.cpp: mvdir storage/ndb/test/ndbapi/testNdbApi.cpp: mvdir storage/ndb/test/ndbapi/testNodeRestart.cpp: mvdir storage/ndb/test/ndbapi/testOIBasic.cpp: mvdir storage/ndb/test/ndbapi/testOperations.cpp: mvdir storage/ndb/test/ndbapi/testOrderedIndex.cpp: mvdir storage/ndb/test/ndbapi/testPartitioning.cpp: mvdir storage/ndb/test/ndbapi/testReadPerf.cpp: mvdir storage/ndb/test/ndbapi/testRestartGci.cpp: mvdir storage/ndb/test/ndbapi/bank/Bank.cpp: mvdir storage/ndb/test/ndbapi/bank/Bank.hpp: mvdir storage/ndb/test/ndbapi/bank/BankLoad.cpp: mvdir storage/ndb/test/ndbapi/bank/Makefile.am: mvdir storage/ndb/test/ndbapi/bank/bankCreator.cpp: mvdir storage/ndb/test/ndbapi/bank/bankMakeGL.cpp: mvdir storage/ndb/test/ndbapi/bank/bankSumAccounts.cpp: mvdir storage/ndb/test/ndbapi/bank/bankTimer.cpp: mvdir storage/ndb/test/ndbapi/bank/bankTransactionMaker.cpp: mvdir storage/ndb/test/ndbapi/bank/bankValidateAllGLs.cpp: mvdir storage/ndb/test/ndbapi/bank/testBank.cpp: mvdir storage/ndb/test/ndbapi/bench/asyncGenerator.cpp: mvdir 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storage/bdb/test/recd003.tcl: mvdir storage/bdb/test/recd004.tcl: mvdir storage/bdb/test/recd005.tcl: mvdir storage/bdb/test/recd006.tcl: mvdir storage/bdb/test/recd007.tcl: mvdir storage/bdb/test/recd008.tcl: mvdir storage/bdb/test/recd009.tcl: mvdir storage/bdb/test/recd010.tcl: mvdir storage/bdb/test/recd011.tcl: mvdir storage/bdb/test/recd012.tcl: mvdir storage/bdb/test/recd013.tcl: mvdir storage/bdb/test/recd014.tcl: mvdir storage/bdb/test/recd015.tcl: mvdir storage/bdb/test/recd016.tcl: mvdir storage/bdb/test/recd017.tcl: mvdir storage/bdb/test/recd018.tcl: mvdir storage/bdb/test/recd019.tcl: mvdir storage/bdb/test/recd020.tcl: mvdir storage/bdb/test/recd15scr.tcl: mvdir storage/bdb/test/recdscript.tcl: mvdir storage/bdb/test/rep001.tcl: mvdir storage/bdb/test/rep002.tcl: mvdir storage/bdb/test/rep003.tcl: mvdir storage/bdb/test/rep004.tcl: mvdir storage/bdb/test/rep005.tcl: mvdir storage/bdb/test/reputils.tcl: mvdir storage/bdb/test/rpc001.tcl: mvdir storage/bdb/test/rpc002.tcl: mvdir storage/bdb/test/rpc003.tcl: mvdir storage/bdb/test/rpc004.tcl: mvdir storage/bdb/test/rpc005.tcl: mvdir storage/bdb/test/rsrc001.tcl: mvdir storage/bdb/test/rsrc002.tcl: mvdir storage/bdb/test/rsrc003.tcl: mvdir storage/bdb/test/rsrc004.tcl: mvdir storage/bdb/test/sdb001.tcl: mvdir storage/bdb/test/sdb002.tcl: mvdir storage/bdb/test/sdb003.tcl: mvdir storage/bdb/test/sdb004.tcl: mvdir storage/bdb/test/sdb005.tcl: mvdir storage/bdb/test/sdb006.tcl: mvdir storage/bdb/test/sdb007.tcl: mvdir storage/bdb/test/sdb008.tcl: mvdir storage/bdb/test/sdb009.tcl: mvdir storage/bdb/test/sdb010.tcl: mvdir storage/bdb/test/sdb011.tcl: mvdir storage/bdb/test/sdb012.tcl: mvdir storage/bdb/test/sdbscript.tcl: mvdir storage/bdb/test/sdbtest001.tcl: mvdir storage/bdb/test/sdbtest002.tcl: mvdir storage/bdb/test/sdbutils.tcl: mvdir storage/bdb/test/sec001.tcl: mvdir storage/bdb/test/sec002.tcl: mvdir storage/bdb/test/shelltest.tcl: mvdir storage/bdb/test/si001.tcl: mvdir storage/bdb/test/si002.tcl: mvdir storage/bdb/test/si003.tcl: mvdir storage/bdb/test/si004.tcl: mvdir storage/bdb/test/si005.tcl: mvdir storage/bdb/test/si006.tcl: mvdir storage/bdb/test/sindex.tcl: mvdir storage/bdb/test/sysscript.tcl: mvdir storage/bdb/test/test.tcl: mvdir storage/bdb/test/test001.tcl: mvdir storage/bdb/test/test002.tcl: mvdir storage/bdb/test/test003.tcl: mvdir storage/bdb/test/test004.tcl: mvdir storage/bdb/test/test005.tcl: mvdir storage/bdb/test/test006.tcl: mvdir storage/bdb/test/test007.tcl: mvdir storage/bdb/test/test008.tcl: mvdir storage/bdb/test/test009.tcl: mvdir storage/bdb/test/test010.tcl: mvdir storage/bdb/test/test011.tcl: mvdir storage/bdb/test/test012.tcl: mvdir storage/bdb/test/test013.tcl: mvdir storage/bdb/test/test014.tcl: mvdir storage/bdb/test/test015.tcl: mvdir storage/bdb/test/test016.tcl: mvdir storage/bdb/test/test017.tcl: mvdir storage/bdb/test/test018.tcl: mvdir storage/bdb/test/test019.tcl: mvdir storage/bdb/test/test020.tcl: mvdir storage/bdb/test/test021.tcl: mvdir storage/bdb/test/test022.tcl: mvdir storage/bdb/test/test023.tcl: mvdir storage/bdb/test/test024.tcl: mvdir storage/bdb/test/test025.tcl: mvdir storage/bdb/test/test026.tcl: mvdir storage/bdb/test/test027.tcl: mvdir storage/bdb/test/test028.tcl: mvdir storage/bdb/test/test029.tcl: mvdir storage/bdb/test/test030.tcl: mvdir storage/bdb/test/test031.tcl: mvdir storage/bdb/test/test032.tcl: mvdir storage/bdb/test/test033.tcl: mvdir storage/bdb/test/test034.tcl: mvdir storage/bdb/test/test035.tcl: mvdir storage/bdb/test/test036.tcl: mvdir storage/bdb/test/test037.tcl: mvdir storage/bdb/test/test038.tcl: mvdir storage/bdb/test/test039.tcl: mvdir storage/bdb/test/test040.tcl: mvdir storage/bdb/test/test041.tcl: mvdir storage/bdb/test/test042.tcl: mvdir storage/bdb/test/test043.tcl: mvdir storage/bdb/test/test044.tcl: mvdir storage/bdb/test/test045.tcl: mvdir storage/bdb/test/test046.tcl: mvdir storage/bdb/test/test047.tcl: mvdir storage/bdb/test/test048.tcl: mvdir storage/bdb/test/test049.tcl: mvdir storage/bdb/test/test050.tcl: mvdir storage/bdb/test/test051.tcl: mvdir storage/bdb/test/test052.tcl: mvdir storage/bdb/test/test053.tcl: mvdir storage/bdb/test/test054.tcl: mvdir storage/bdb/test/test055.tcl: mvdir storage/bdb/test/test056.tcl: mvdir storage/bdb/test/test057.tcl: mvdir storage/bdb/test/test058.tcl: mvdir storage/bdb/test/test059.tcl: mvdir storage/bdb/test/test060.tcl: mvdir storage/bdb/test/test061.tcl: mvdir storage/bdb/test/test062.tcl: mvdir storage/bdb/test/test063.tcl: mvdir storage/bdb/test/test064.tcl: mvdir storage/bdb/test/test065.tcl: mvdir storage/bdb/test/test066.tcl: mvdir storage/bdb/test/test067.tcl: mvdir storage/bdb/test/test068.tcl: mvdir storage/bdb/test/test069.tcl: mvdir storage/bdb/test/test070.tcl: mvdir storage/bdb/test/test071.tcl: mvdir storage/bdb/test/test072.tcl: mvdir storage/bdb/test/test073.tcl: mvdir storage/bdb/test/test074.tcl: mvdir storage/bdb/test/test075.tcl: mvdir storage/bdb/test/test076.tcl: mvdir storage/bdb/test/test077.tcl: mvdir storage/bdb/test/test078.tcl: mvdir storage/bdb/test/test079.tcl: mvdir storage/bdb/test/test080.tcl: mvdir storage/bdb/test/test081.tcl: mvdir storage/bdb/test/test082.tcl: mvdir storage/bdb/test/test083.tcl: mvdir storage/bdb/test/test084.tcl: mvdir storage/bdb/test/test085.tcl: mvdir storage/bdb/test/test086.tcl: mvdir storage/bdb/test/test087.tcl: mvdir storage/bdb/test/test088.tcl: mvdir storage/bdb/test/test089.tcl: mvdir storage/bdb/test/test090.tcl: mvdir storage/bdb/test/test091.tcl: mvdir storage/bdb/test/test092.tcl: mvdir storage/bdb/test/test093.tcl: mvdir storage/bdb/test/test094.tcl: mvdir storage/bdb/test/test095.tcl: mvdir storage/bdb/test/test096.tcl: mvdir storage/bdb/test/test097.tcl: mvdir storage/bdb/test/test098.tcl: mvdir storage/bdb/test/test099.tcl: mvdir storage/bdb/test/test100.tcl: mvdir storage/bdb/test/test101.tcl: mvdir storage/bdb/test/testparams.tcl: mvdir storage/bdb/test/testutils.tcl: mvdir storage/bdb/test/txn001.tcl: mvdir storage/bdb/test/txn002.tcl: mvdir storage/bdb/test/txn003.tcl: mvdir storage/bdb/test/txn004.tcl: mvdir storage/bdb/test/txn005.tcl: mvdir storage/bdb/test/txn006.tcl: mvdir storage/bdb/test/txn007.tcl: mvdir storage/bdb/test/txn008.tcl: mvdir storage/bdb/test/txn009.tcl: mvdir storage/bdb/test/txnscript.tcl: mvdir storage/bdb/test/update.tcl: mvdir storage/bdb/test/scr001/chk.code: mvdir storage/bdb/test/scr002/chk.def: mvdir storage/bdb/test/scr003/chk.define: mvdir storage/bdb/test/scr004/chk.javafiles: mvdir storage/bdb/test/scr005/chk.nl: mvdir storage/bdb/test/scr006/chk.offt: mvdir storage/bdb/test/scr007/chk.proto: mvdir storage/bdb/test/scr008/chk.pubdef: mvdir storage/bdb/test/scr009/chk.srcfiles: mvdir storage/bdb/test/scr010/chk.str: mvdir storage/bdb/test/scr010/spell.ok: mvdir storage/bdb/test/scr011/chk.tags: mvdir storage/bdb/test/scr012/chk.vx_code: mvdir storage/bdb/test/scr013/chk.stats: mvdir storage/bdb/test/scr014/chk.err: mvdir storage/bdb/test/scr015/README: mvdir storage/bdb/test/scr015/TestConstruct01.cpp: mvdir storage/bdb/test/scr015/TestConstruct01.testerr: mvdir storage/bdb/test/scr015/TestConstruct01.testout: mvdir storage/bdb/test/scr015/TestExceptInclude.cpp: mvdir storage/bdb/test/scr015/TestGetSetMethods.cpp: mvdir storage/bdb/test/scr015/TestKeyRange.cpp: mvdir storage/bdb/test/scr015/TestKeyRange.testin: mvdir storage/bdb/test/scr015/TestKeyRange.testout: mvdir storage/bdb/test/upgrade.tcl: mvdir storage/bdb/test/wordlist: mvdir storage/bdb/test/wrap.tcl: mvdir storage/bdb/test/scr015/TestLogc.cpp: mvdir storage/bdb/test/scr015/TestLogc.testout: mvdir storage/bdb/test/scr015/TestSimpleAccess.cpp: mvdir storage/bdb/test/scr015/TestSimpleAccess.testout: mvdir storage/bdb/test/scr015/TestTruncate.cpp: mvdir storage/bdb/test/scr015/TestTruncate.testout: mvdir storage/bdb/test/scr015/chk.cxxtests: mvdir storage/bdb/test/scr015/ignore: mvdir storage/bdb/test/scr015/testall: mvdir storage/bdb/test/scr015/testone: mvdir storage/bdb/test/scr016/CallbackTest.java: mvdir storage/bdb/test/scr016/CallbackTest.testout: mvdir storage/bdb/test/scr016/README: mvdir storage/bdb/test/scr016/TestAppendRecno.java: mvdir storage/bdb/test/scr016/TestAppendRecno.testout: mvdir storage/bdb/test/scr016/TestAssociate.java: mvdir storage/bdb/test/scr016/TestAssociate.testout: mvdir storage/bdb/test/scr016/TestClosedDb.java: mvdir storage/bdb/test/scr016/TestClosedDb.testout: mvdir storage/bdb/test/scr016/TestConstruct01.java: mvdir storage/bdb/test/scr016/TestConstruct01.testerr: mvdir storage/bdb/test/scr016/TestConstruct01.testout: mvdir storage/bdb/test/scr016/TestConstruct02.java: mvdir storage/bdb/test/scr016/TestConstruct02.testout: mvdir storage/bdb/test/scr016/TestDbtFlags.java: mvdir storage/bdb/test/scr016/TestDbtFlags.testerr: mvdir storage/bdb/test/scr016/TestDbtFlags.testout: mvdir storage/bdb/test/scr016/TestGetSetMethods.java: mvdir storage/bdb/test/scr016/TestKeyRange.java: mvdir storage/bdb/test/scr016/TestKeyRange.testout: mvdir storage/bdb/test/scr016/TestLockVec.java: mvdir storage/bdb/test/scr016/TestLockVec.testout: mvdir storage/bdb/test/scr016/TestLogc.java: mvdir storage/bdb/test/scr016/TestLogc.testout: mvdir storage/bdb/test/scr016/TestOpenEmpty.java: mvdir storage/bdb/test/scr016/TestOpenEmpty.testerr: mvdir storage/bdb/test/scr016/TestReplication.java: mvdir storage/bdb/test/scr016/TestRpcServer.java: mvdir storage/bdb/test/scr016/TestSameDbt.java: mvdir storage/bdb/test/scr016/TestSameDbt.testout: mvdir storage/bdb/test/scr016/TestSimpleAccess.java: mvdir storage/bdb/test/scr016/TestSimpleAccess.testout: mvdir storage/bdb/test/scr016/TestStat.java: mvdir storage/bdb/test/scr016/TestStat.testout: mvdir storage/bdb/test/scr016/TestTruncate.java: mvdir storage/bdb/test/scr016/TestTruncate.testout: mvdir storage/bdb/test/scr016/TestUtil.java: mvdir storage/bdb/test/scr016/TestXAServlet.java: mvdir storage/bdb/test/scr016/chk.javatests: mvdir storage/bdb/test/scr016/ignore: mvdir storage/bdb/test/scr016/testall: mvdir storage/bdb/test/scr016/testone: mvdir storage/bdb/test/scr017/O.BH: mvdir storage/bdb/test/scr017/O.R: mvdir storage/bdb/test/scr017/chk.db185: mvdir storage/bdb/test/scr017/t.c: mvdir storage/bdb/test/scr018/chk.comma: mvdir storage/bdb/test/scr018/t.c: mvdir storage/bdb/test/scr019/chk.include: mvdir storage/bdb/test/scr020/chk.inc: mvdir storage/bdb/test/scr021/chk.flags: mvdir storage/bdb/test/scr022/chk.rr: mvdir storage/bdb/txn/txn.c: mvdir storage/bdb/txn/txn.src: mvdir storage/bdb/txn/txn_method.c: mvdir storage/bdb/txn/txn_rec.c: mvdir storage/bdb/txn/txn_recover.c: mvdir storage/bdb/txn/txn_region.c: mvdir storage/bdb/txn/txn_stat.c: mvdir storage/bdb/txn/txn_util.c: mvdir storage/bdb/xa/xa.c: mvdir storage/bdb/xa/xa_db.c: mvdir storage/bdb/xa/xa_map.c: mvdir
Diffstat (limited to 'innobase/btr')
-rw-r--r--innobase/btr/Makefile.am24
-rw-r--r--innobase/btr/btr0btr.c2970
-rw-r--r--innobase/btr/btr0cur.c3781
-rw-r--r--innobase/btr/btr0pcur.c562
-rw-r--r--innobase/btr/btr0sea.c1670
-rw-r--r--innobase/btr/makefilewin16
6 files changed, 0 insertions, 9023 deletions
diff --git a/innobase/btr/Makefile.am b/innobase/btr/Makefile.am
deleted file mode 100644
index ed61facb695..00000000000
--- a/innobase/btr/Makefile.am
+++ /dev/null
@@ -1,24 +0,0 @@
-# Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-# & Innobase Oy
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-include ../include/Makefile.i
-
-noinst_LIBRARIES = libbtr.a
-
-libbtr_a_SOURCES = btr0btr.c btr0cur.c btr0pcur.c btr0sea.c
-
-EXTRA_PROGRAMS =
diff --git a/innobase/btr/btr0btr.c b/innobase/btr/btr0btr.c
deleted file mode 100644
index 1744fc36f4d..00000000000
--- a/innobase/btr/btr0btr.c
+++ /dev/null
@@ -1,2970 +0,0 @@
-/******************************************************
-The B-tree
-
-(c) 1994-1996 Innobase Oy
-
-Created 6/2/1994 Heikki Tuuri
-*******************************************************/
-
-#include "btr0btr.h"
-
-#ifdef UNIV_NONINL
-#include "btr0btr.ic"
-#endif
-
-#include "fsp0fsp.h"
-#include "page0page.h"
-#include "btr0cur.h"
-#include "btr0sea.h"
-#include "btr0pcur.h"
-#include "rem0cmp.h"
-#include "lock0lock.h"
-#include "ibuf0ibuf.h"
-
-/*
-Latching strategy of the InnoDB B-tree
---------------------------------------
-A tree latch protects all non-leaf nodes of the tree. Each node of a tree
-also has a latch of its own.
-
-A B-tree operation normally first acquires an S-latch on the tree. It
-searches down the tree and releases the tree latch when it has the
-leaf node latch. To save CPU time we do not acquire any latch on
-non-leaf nodes of the tree during a search, those pages are only bufferfixed.
-
-If an operation needs to restructure the tree, it acquires an X-latch on
-the tree before searching to a leaf node. If it needs, for example, to
-split a leaf,
-(1) InnoDB decides the split point in the leaf,
-(2) allocates a new page,
-(3) inserts the appropriate node pointer to the first non-leaf level,
-(4) releases the tree X-latch,
-(5) and then moves records from the leaf to the new allocated page.
-
-Node pointers
--------------
-Leaf pages of a B-tree contain the index records stored in the
-tree. On levels n > 0 we store 'node pointers' to pages on level
-n - 1. For each page there is exactly one node pointer stored:
-thus the our tree is an ordinary B-tree, not a B-link tree.
-
-A node pointer contains a prefix P of an index record. The prefix
-is long enough so that it determines an index record uniquely.
-The file page number of the child page is added as the last
-field. To the child page we can store node pointers or index records
-which are >= P in the alphabetical order, but < P1 if there is
-a next node pointer on the level, and P1 is its prefix.
-
-If a node pointer with a prefix P points to a non-leaf child,
-then the leftmost record in the child must have the same
-prefix P. If it points to a leaf node, the child is not required
-to contain any record with a prefix equal to P. The leaf case
-is decided this way to allow arbitrary deletions in a leaf node
-without touching upper levels of the tree.
-
-We have predefined a special minimum record which we
-define as the smallest record in any alphabetical order.
-A minimum record is denoted by setting a bit in the record
-header. A minimum record acts as the prefix of a node pointer
-which points to a leftmost node on any level of the tree.
-
-File page allocation
---------------------
-In the root node of a B-tree there are two file segment headers.
-The leaf pages of a tree are allocated from one file segment, to
-make them consecutive on disk if possible. From the other file segment
-we allocate pages for the non-leaf levels of the tree.
-*/
-
-/******************************************************************
-Creates a new index page to the tree (not the root, and also not
-used in page reorganization). */
-static
-void
-btr_page_create(
-/*============*/
- page_t* page, /* in: page to be created */
- dict_tree_t* tree, /* in: index tree */
- mtr_t* mtr); /* in: mtr */
-/****************************************************************
-Returns the upper level node pointer to a page. It is assumed that
-mtr holds an x-latch on the tree. */
-static
-rec_t*
-btr_page_get_father_node_ptr(
-/*=========================*/
- /* out: pointer to node pointer record */
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page: must contain at least one
- user record */
- mtr_t* mtr); /* in: mtr */
-/*****************************************************************
-Empties an index page. */
-static
-void
-btr_page_empty(
-/*===========*/
- page_t* page, /* in: page to be emptied */
- mtr_t* mtr); /* in: mtr */
-/*****************************************************************
-Returns TRUE if the insert fits on the appropriate half-page
-with the chosen split_rec. */
-static
-ibool
-btr_page_insert_fits(
-/*=================*/
- /* out: TRUE if fits */
- btr_cur_t* cursor, /* in: cursor at which insert
- should be made */
- rec_t* split_rec, /* in: suggestion for first record
- on upper half-page, or NULL if
- tuple should be first */
- const ulint* offsets, /* in: rec_get_offsets(
- split_rec, cursor->index) */
- dtuple_t* tuple, /* in: tuple to insert */
- mem_heap_t* heap); /* in: temporary memory heap */
-
-/******************************************************************
-Gets the root node of a tree and x-latches it. */
-
-page_t*
-btr_root_get(
-/*=========*/
- /* out: root page, x-latched */
- dict_tree_t* tree, /* in: index tree */
- mtr_t* mtr) /* in: mtr */
-{
- ulint space;
- ulint root_page_no;
- page_t* root;
- ibool comp = UT_LIST_GET_FIRST(tree->tree_indexes)->table->comp;
-
- space = dict_tree_get_space(tree);
- root_page_no = dict_tree_get_page(tree);
-
- root = btr_page_get(space, root_page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(root) == comp);
-
- return(root);
-}
-
-/*****************************************************************
-Gets pointer to the previous user record in the tree. It is assumed that
-the caller has appropriate latches on the page and its neighbor. */
-
-rec_t*
-btr_get_prev_user_rec(
-/*==================*/
- /* out: previous user record, NULL if there is none */
- rec_t* rec, /* in: record on leaf level */
- mtr_t* mtr) /* in: mtr holding a latch on the page, and if
- needed, also to the previous page */
-{
- page_t* page;
- page_t* prev_page;
- ulint prev_page_no;
- rec_t* prev_rec;
- ulint space;
-
- page = buf_frame_align(rec);
-
- if (page_get_infimum_rec(page) != rec) {
-
- prev_rec = page_rec_get_prev(rec);
-
- if (page_get_infimum_rec(page) != prev_rec) {
-
- return(prev_rec);
- }
- }
-
- prev_page_no = btr_page_get_prev(page, mtr);
- space = buf_frame_get_space_id(page);
-
- if (prev_page_no != FIL_NULL) {
-
- prev_page = buf_page_get_with_no_latch(space, prev_page_no,
- mtr);
- /* The caller must already have a latch to the brother */
- ut_ad((mtr_memo_contains(mtr, buf_block_align(prev_page),
- MTR_MEMO_PAGE_S_FIX))
- || (mtr_memo_contains(mtr, buf_block_align(prev_page),
- MTR_MEMO_PAGE_X_FIX)));
- ut_a(page_is_comp(prev_page) == page_is_comp(page));
-
- prev_rec = page_rec_get_prev(page_get_supremum_rec(prev_page));
-
- return(prev_rec);
- }
-
- return(NULL);
-}
-
-/*****************************************************************
-Gets pointer to the next user record in the tree. It is assumed that the
-caller has appropriate latches on the page and its neighbor. */
-
-rec_t*
-btr_get_next_user_rec(
-/*==================*/
- /* out: next user record, NULL if there is none */
- rec_t* rec, /* in: record on leaf level */
- mtr_t* mtr) /* in: mtr holding a latch on the page, and if
- needed, also to the next page */
-{
- page_t* page;
- page_t* next_page;
- ulint next_page_no;
- rec_t* next_rec;
- ulint space;
-
- page = buf_frame_align(rec);
-
- if (page_get_supremum_rec(page) != rec) {
-
- next_rec = page_rec_get_next(rec);
-
- if (page_get_supremum_rec(page) != next_rec) {
-
- return(next_rec);
- }
- }
-
- next_page_no = btr_page_get_next(page, mtr);
- space = buf_frame_get_space_id(page);
-
- if (next_page_no != FIL_NULL) {
-
- next_page = buf_page_get_with_no_latch(space, next_page_no,
- mtr);
- /* The caller must already have a latch to the brother */
- ut_ad((mtr_memo_contains(mtr, buf_block_align(next_page),
- MTR_MEMO_PAGE_S_FIX))
- || (mtr_memo_contains(mtr, buf_block_align(next_page),
- MTR_MEMO_PAGE_X_FIX)));
-
- ut_a(page_is_comp(next_page) == page_is_comp(page));
- next_rec = page_rec_get_next(page_get_infimum_rec(next_page));
-
- return(next_rec);
- }
-
- return(NULL);
-}
-
-/******************************************************************
-Creates a new index page to the tree (not the root, and also not used in
-page reorganization). */
-static
-void
-btr_page_create(
-/*============*/
- page_t* page, /* in: page to be created */
- dict_tree_t* tree, /* in: index tree */
- mtr_t* mtr) /* in: mtr */
-{
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- page_create(page, mtr,
- UT_LIST_GET_FIRST(tree->tree_indexes)->table->comp);
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-
- btr_page_set_index_id(page, tree->id, mtr);
-}
-
-/******************************************************************
-Allocates a new file page to be used in an ibuf tree. Takes the page from
-the free list of the tree, which must contain pages! */
-static
-page_t*
-btr_page_alloc_for_ibuf(
-/*====================*/
- /* out: new allocated page, x-latched */
- dict_tree_t* tree, /* in: index tree */
- mtr_t* mtr) /* in: mtr */
-{
- fil_addr_t node_addr;
- page_t* root;
- page_t* new_page;
-
- root = btr_root_get(tree, mtr);
-
- node_addr = flst_get_first(root + PAGE_HEADER
- + PAGE_BTR_IBUF_FREE_LIST, mtr);
- ut_a(node_addr.page != FIL_NULL);
-
- new_page = buf_page_get(dict_tree_get_space(tree), node_addr.page,
- RW_X_LATCH, mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(new_page, SYNC_TREE_NODE_NEW);
-#endif /* UNIV_SYNC_DEBUG */
-
- flst_remove(root + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST,
- new_page + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST_NODE,
- mtr);
- ut_ad(flst_validate(root + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST, mtr));
-
- return(new_page);
-}
-
-/******************************************************************
-Allocates a new file page to be used in an index tree. NOTE: we assume
-that the caller has made the reservation for free extents! */
-
-page_t*
-btr_page_alloc(
-/*===========*/
- /* out: new allocated page, x-latched;
- NULL if out of space */
- dict_tree_t* tree, /* in: index tree */
- ulint hint_page_no, /* in: hint of a good page */
- byte file_direction, /* in: direction where a possible
- page split is made */
- ulint level, /* in: level where the page is placed
- in the tree */
- mtr_t* mtr) /* in: mtr */
-{
- fseg_header_t* seg_header;
- page_t* root;
- page_t* new_page;
- ulint new_page_no;
-
- if (tree->type & DICT_IBUF) {
-
- return(btr_page_alloc_for_ibuf(tree, mtr));
- }
-
- root = btr_root_get(tree, mtr);
-
- if (level == 0) {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_LEAF;
- } else {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_TOP;
- }
-
- /* Parameter TRUE below states that the caller has made the
- reservation for free extents, and thus we know that a page can
- be allocated: */
-
- new_page_no = fseg_alloc_free_page_general(seg_header, hint_page_no,
- file_direction, TRUE, mtr);
- if (new_page_no == FIL_NULL) {
-
- return(NULL);
- }
-
- new_page = buf_page_get(dict_tree_get_space(tree), new_page_no,
- RW_X_LATCH, mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(new_page, SYNC_TREE_NODE_NEW);
-#endif /* UNIV_SYNC_DEBUG */
-
- return(new_page);
-}
-
-/******************************************************************
-Gets the number of pages in a B-tree. */
-
-ulint
-btr_get_size(
-/*=========*/
- /* out: number of pages */
- dict_index_t* index, /* in: index */
- ulint flag) /* in: BTR_N_LEAF_PAGES or BTR_TOTAL_SIZE */
-{
- fseg_header_t* seg_header;
- page_t* root;
- ulint n;
- ulint dummy;
- mtr_t mtr;
-
- mtr_start(&mtr);
-
- mtr_s_lock(dict_tree_get_lock(index->tree), &mtr);
-
- root = btr_root_get(index->tree, &mtr);
-
- if (flag == BTR_N_LEAF_PAGES) {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_LEAF;
-
- fseg_n_reserved_pages(seg_header, &n, &mtr);
-
- } else if (flag == BTR_TOTAL_SIZE) {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_TOP;
-
- n = fseg_n_reserved_pages(seg_header, &dummy, &mtr);
-
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_LEAF;
-
- n += fseg_n_reserved_pages(seg_header, &dummy, &mtr);
- } else {
- ut_error;
- }
-
- mtr_commit(&mtr);
-
- return(n);
-}
-
-/******************************************************************
-Frees a page used in an ibuf tree. Puts the page to the free list of the
-ibuf tree. */
-static
-void
-btr_page_free_for_ibuf(
-/*===================*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page to be freed, x-latched */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* root;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- root = btr_root_get(tree, mtr);
-
- flst_add_first(root + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST,
- page + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST_NODE, mtr);
-
- ut_ad(flst_validate(root + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST,
- mtr));
-}
-
-/******************************************************************
-Frees a file page used in an index tree. Can be used also to (BLOB)
-external storage pages, because the page level 0 can be given as an
-argument. */
-
-void
-btr_page_free_low(
-/*==============*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page to be freed, x-latched */
- ulint level, /* in: page level */
- mtr_t* mtr) /* in: mtr */
-{
- fseg_header_t* seg_header;
- page_t* root;
- ulint space;
- ulint page_no;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- /* The page gets invalid for optimistic searches: increment the frame
- modify clock */
-
- buf_frame_modify_clock_inc(page);
-
- if (tree->type & DICT_IBUF) {
-
- btr_page_free_for_ibuf(tree, page, mtr);
-
- return;
- }
-
- root = btr_root_get(tree, mtr);
-
- if (level == 0) {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_LEAF;
- } else {
- seg_header = root + PAGE_HEADER + PAGE_BTR_SEG_TOP;
- }
-
- space = buf_frame_get_space_id(page);
- page_no = buf_frame_get_page_no(page);
-
- fseg_free_page(seg_header, space, page_no, mtr);
-}
-
-/******************************************************************
-Frees a file page used in an index tree. NOTE: cannot free field external
-storage pages because the page must contain info on its level. */
-
-void
-btr_page_free(
-/*==========*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page to be freed, x-latched */
- mtr_t* mtr) /* in: mtr */
-{
- ulint level;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- level = btr_page_get_level(page, mtr);
-
- btr_page_free_low(tree, page, level, mtr);
-}
-
-/******************************************************************
-Sets the child node file address in a node pointer. */
-UNIV_INLINE
-void
-btr_node_ptr_set_child_page_no(
-/*===========================*/
- rec_t* rec, /* in: node pointer record */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- ulint page_no,/* in: child node address */
- mtr_t* mtr) /* in: mtr */
-{
- byte* field;
- ulint len;
-
- ut_ad(rec_offs_validate(rec, NULL, offsets));
- ut_ad(0 < btr_page_get_level(buf_frame_align(rec), mtr));
- ut_ad(!rec_offs_comp(offsets) || rec_get_node_ptr_flag(rec));
-
- /* The child address is in the last field */
- field = rec_get_nth_field(rec, offsets,
- rec_offs_n_fields(offsets) - 1, &len);
-
- ut_ad(len == 4);
-
- mlog_write_ulint(field, page_no, MLOG_4BYTES, mtr);
-}
-
-/****************************************************************
-Returns the child page of a node pointer and x-latches it. */
-static
-page_t*
-btr_node_ptr_get_child(
-/*===================*/
- /* out: child page, x-latched */
- rec_t* node_ptr,/* in: node pointer */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- mtr_t* mtr) /* in: mtr */
-{
- ulint page_no;
- ulint space;
- page_t* page;
-
- ut_ad(rec_offs_validate(node_ptr, NULL, offsets));
- space = buf_frame_get_space_id(node_ptr);
- page_no = btr_node_ptr_get_child_page_no(node_ptr, offsets);
-
- page = btr_page_get(space, page_no, RW_X_LATCH, mtr);
-
- return(page);
-}
-
-/****************************************************************
-Returns the upper level node pointer to a page. It is assumed that mtr holds
-an x-latch on the tree. */
-static
-rec_t*
-btr_page_get_father_for_rec(
-/*========================*/
- /* out: pointer to node pointer record,
- its page x-latched */
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page: must contain at least one
- user record */
- rec_t* user_rec,/* in: user_record on page */
- mtr_t* mtr) /* in: mtr */
-{
- mem_heap_t* heap;
- dtuple_t* tuple;
- btr_cur_t cursor;
- rec_t* node_ptr;
- dict_index_t* index;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_a(user_rec != page_get_supremum_rec(page));
- ut_a(user_rec != page_get_infimum_rec(page));
-
- ut_ad(dict_tree_get_page(tree) != buf_frame_get_page_no(page));
-
- heap = mem_heap_create(100);
-
- tuple = dict_tree_build_node_ptr(tree, user_rec, 0, heap,
- btr_page_get_level(page, mtr));
- index = UT_LIST_GET_FIRST(tree->tree_indexes);
-
- /* In the following, we choose just any index from the tree as the
- first parameter for btr_cur_search_to_nth_level. */
-
- btr_cur_search_to_nth_level(index,
- btr_page_get_level(page, mtr) + 1,
- tuple, PAGE_CUR_LE,
- BTR_CONT_MODIFY_TREE, &cursor, 0, mtr);
-
- node_ptr = btr_cur_get_rec(&cursor);
- offsets = rec_get_offsets(node_ptr, index, offsets,
- ULINT_UNDEFINED, &heap);
-
- if (btr_node_ptr_get_child_page_no(node_ptr, offsets) !=
- buf_frame_get_page_no(page)) {
- fputs("InnoDB: Dump of the child page:\n", stderr);
- buf_page_print(buf_frame_align(page));
- fputs("InnoDB: Dump of the parent page:\n", stderr);
- buf_page_print(buf_frame_align(node_ptr));
-
- fputs("InnoDB: Corruption of an index tree: table ", stderr);
- ut_print_name(stderr, NULL, index->table_name);
- fputs(", index ", stderr);
- ut_print_name(stderr, NULL, index->name);
- fprintf(stderr, ",\n"
-"InnoDB: father ptr page no %lu, child page no %lu\n",
- (ulong)
- btr_node_ptr_get_child_page_no(node_ptr, offsets),
- (ulong) buf_frame_get_page_no(page));
- offsets = rec_get_offsets(page_rec_get_next(
- page_get_infimum_rec(page)), index,
- offsets, ULINT_UNDEFINED, &heap);
- page_rec_print(page_rec_get_next(page_get_infimum_rec(page)),
- offsets);
- offsets = rec_get_offsets(node_ptr, index, offsets,
- ULINT_UNDEFINED, &heap);
- page_rec_print(node_ptr, offsets);
-
- fputs(
-"InnoDB: You should dump + drop + reimport the table to fix the\n"
-"InnoDB: corruption. If the crash happens at the database startup, see\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html about\n"
-"InnoDB: forcing recovery. Then dump + drop + reimport.\n", stderr);
- }
-
- ut_a(btr_node_ptr_get_child_page_no(node_ptr, offsets) ==
- buf_frame_get_page_no(page));
- mem_heap_free(heap);
-
- return(node_ptr);
-}
-
-/****************************************************************
-Returns the upper level node pointer to a page. It is assumed that
-mtr holds an x-latch on the tree. */
-static
-rec_t*
-btr_page_get_father_node_ptr(
-/*=========================*/
- /* out: pointer to node pointer record */
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page: must contain at least one
- user record */
- mtr_t* mtr) /* in: mtr */
-{
- return(btr_page_get_father_for_rec(tree, page,
- page_rec_get_next(page_get_infimum_rec(page)), mtr));
-}
-
-/****************************************************************
-Creates the root node for a new index tree. */
-
-ulint
-btr_create(
-/*=======*/
- /* out: page number of the created root, FIL_NULL if
- did not succeed */
- ulint type, /* in: type of the index */
- ulint space, /* in: space where created */
- dulint index_id,/* in: index id */
- ibool comp, /* in: TRUE=compact page format */
- mtr_t* mtr) /* in: mini-transaction handle */
-{
- ulint page_no;
- buf_frame_t* ibuf_hdr_frame;
- buf_frame_t* frame;
- page_t* page;
-
- /* Create the two new segments (one, in the case of an ibuf tree) for
- the index tree; the segment headers are put on the allocated root page
- (for an ibuf tree, not in the root, but on a separate ibuf header
- page) */
-
- if (type & DICT_IBUF) {
- /* Allocate first the ibuf header page */
- ibuf_hdr_frame = fseg_create(space, 0,
- IBUF_HEADER + IBUF_TREE_SEG_HEADER, mtr);
-
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(ibuf_hdr_frame, SYNC_TREE_NODE_NEW);
-#endif /* UNIV_SYNC_DEBUG */
- ut_ad(buf_frame_get_page_no(ibuf_hdr_frame)
- == IBUF_HEADER_PAGE_NO);
- /* Allocate then the next page to the segment: it will be the
- tree root page */
-
- page_no = fseg_alloc_free_page(
- ibuf_hdr_frame + IBUF_HEADER
- + IBUF_TREE_SEG_HEADER, IBUF_TREE_ROOT_PAGE_NO,
- FSP_UP, mtr);
- ut_ad(page_no == IBUF_TREE_ROOT_PAGE_NO);
-
- frame = buf_page_get(space, page_no, RW_X_LATCH, mtr);
- } else {
- frame = fseg_create(space, 0, PAGE_HEADER + PAGE_BTR_SEG_TOP,
- mtr);
- }
-
- if (frame == NULL) {
-
- return(FIL_NULL);
- }
-
- page_no = buf_frame_get_page_no(frame);
-
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(frame, SYNC_TREE_NODE_NEW);
-#endif /* UNIV_SYNC_DEBUG */
-
- if (type & DICT_IBUF) {
- /* It is an insert buffer tree: initialize the free list */
-
- ut_ad(page_no == IBUF_TREE_ROOT_PAGE_NO);
-
- flst_init(frame + PAGE_HEADER + PAGE_BTR_IBUF_FREE_LIST, mtr);
- } else {
- /* It is a non-ibuf tree: create a file segment for leaf
- pages */
- fseg_create(space, page_no, PAGE_HEADER + PAGE_BTR_SEG_LEAF,
- mtr);
- /* The fseg create acquires a second latch on the page,
- therefore we must declare it: */
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(frame, SYNC_TREE_NODE_NEW);
-#endif /* UNIV_SYNC_DEBUG */
- }
-
- /* Create a new index page on the the allocated segment page */
- page = page_create(frame, mtr, comp);
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-
- /* Set the index id of the page */
- btr_page_set_index_id(page, index_id, mtr);
-
- /* Set the level of the new index page */
- btr_page_set_level(page, 0, mtr);
-
- /* Set the next node and previous node fields */
- btr_page_set_next(page, FIL_NULL, mtr);
- btr_page_set_prev(page, FIL_NULL, mtr);
-
- /* We reset the free bits for the page to allow creation of several
- trees in the same mtr, otherwise the latch on a bitmap page would
- prevent it because of the latching order */
-
- ibuf_reset_free_bits_with_type(type, page);
-
- /* In the following assertion we test that two records of maximum
- allowed size fit on the root page: this fact is needed to ensure
- correctness of split algorithms */
-
- ut_ad(page_get_max_insert_size(page, 2) > 2 * BTR_PAGE_MAX_REC_SIZE);
-
- return(page_no);
-}
-
-/****************************************************************
-Frees a B-tree except the root page, which MUST be freed after this
-by calling btr_free_root. */
-
-void
-btr_free_but_not_root(
-/*==================*/
- ulint space, /* in: space where created */
- ulint root_page_no) /* in: root page number */
-{
- ibool finished;
- page_t* root;
- mtr_t mtr;
-
-leaf_loop:
- mtr_start(&mtr);
-
- root = btr_page_get(space, root_page_no, RW_X_LATCH, &mtr);
-
- /* NOTE: page hash indexes are dropped when a page is freed inside
- fsp0fsp. */
-
- finished = fseg_free_step(
- root + PAGE_HEADER + PAGE_BTR_SEG_LEAF, &mtr);
- mtr_commit(&mtr);
-
- if (!finished) {
-
- goto leaf_loop;
- }
-top_loop:
- mtr_start(&mtr);
-
- root = btr_page_get(space, root_page_no, RW_X_LATCH, &mtr);
-
- finished = fseg_free_step_not_header(
- root + PAGE_HEADER + PAGE_BTR_SEG_TOP, &mtr);
- mtr_commit(&mtr);
-
- if (!finished) {
-
- goto top_loop;
- }
-}
-
-/****************************************************************
-Frees the B-tree root page. Other tree MUST already have been freed. */
-
-void
-btr_free_root(
-/*==========*/
- ulint space, /* in: space where created */
- ulint root_page_no, /* in: root page number */
- mtr_t* mtr) /* in: a mini-transaction which has already
- been started */
-{
- ibool finished;
- page_t* root;
-
- root = btr_page_get(space, root_page_no, RW_X_LATCH, mtr);
-
- btr_search_drop_page_hash_index(root);
-top_loop:
- finished = fseg_free_step(
- root + PAGE_HEADER + PAGE_BTR_SEG_TOP, mtr);
- if (!finished) {
-
- goto top_loop;
- }
-}
-
-/*****************************************************************
-Reorganizes an index page. */
-static
-void
-btr_page_reorganize_low(
-/*====================*/
- ibool recovery,/* in: TRUE if called in recovery:
- locks should not be updated, i.e.,
- there cannot exist locks on the
- page, and a hash index should not be
- dropped: it cannot exist */
- page_t* page, /* in: page to be reorganized */
- dict_index_t* index, /* in: record descriptor */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* new_page;
- ulint log_mode;
- ulint data_size1;
- ulint data_size2;
- ulint max_ins_size1;
- ulint max_ins_size2;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- data_size1 = page_get_data_size(page);
- max_ins_size1 = page_get_max_insert_size_after_reorganize(page, 1);
-
- /* Write the log record */
- mlog_open_and_write_index(mtr, page, index, index->table->comp
- ? MLOG_COMP_PAGE_REORGANIZE
- : MLOG_PAGE_REORGANIZE, 0);
-
- /* Turn logging off */
- log_mode = mtr_set_log_mode(mtr, MTR_LOG_NONE);
-
- new_page = buf_frame_alloc();
-
- /* Copy the old page to temporary space */
- buf_frame_copy(new_page, page);
-
- if (!recovery) {
- btr_search_drop_page_hash_index(page);
- }
-
- /* Recreate the page: note that global data on page (possible
- segment headers, next page-field, etc.) is preserved intact */
-
- page_create(page, mtr, index->table->comp);
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-
- /* Copy the records from the temporary space to the recreated page;
- do not copy the lock bits yet */
-
- page_copy_rec_list_end_no_locks(page, new_page,
- page_get_infimum_rec(new_page), index, mtr);
- /* Copy max trx id to recreated page */
- page_set_max_trx_id(page, page_get_max_trx_id(new_page));
-
- if (!recovery) {
- /* Update the record lock bitmaps */
- lock_move_reorganize_page(page, new_page);
- }
-
- data_size2 = page_get_data_size(page);
- max_ins_size2 = page_get_max_insert_size_after_reorganize(page, 1);
-
- if (data_size1 != data_size2 || max_ins_size1 != max_ins_size2) {
- buf_page_print(page);
- buf_page_print(new_page);
- fprintf(stderr,
-"InnoDB: Error: page old data size %lu new data size %lu\n"
-"InnoDB: Error: page old max ins size %lu new max ins size %lu\n"
-"InnoDB: Submit a detailed bug report to http://bugs.mysql.com\n",
- (unsigned long) data_size1, (unsigned long) data_size2,
- (unsigned long) max_ins_size1,
- (unsigned long) max_ins_size2);
- }
-
- buf_frame_free(new_page);
-
- /* Restore logging mode */
- mtr_set_log_mode(mtr, log_mode);
-}
-
-/*****************************************************************
-Reorganizes an index page. */
-
-void
-btr_page_reorganize(
-/*================*/
- page_t* page, /* in: page to be reorganized */
- dict_index_t* index, /* in: record descriptor */
- mtr_t* mtr) /* in: mtr */
-{
- btr_page_reorganize_low(FALSE, page, index, mtr);
-}
-
-/***************************************************************
-Parses a redo log record of reorganizing a page. */
-
-byte*
-btr_parse_page_reorganize(
-/*======================*/
- /* out: end of log record or NULL */
- byte* ptr, /* in: buffer */
- byte* end_ptr __attribute__((unused)),
- /* in: buffer end */
- dict_index_t* index, /* in: record descriptor */
- page_t* page, /* in: page or NULL */
- mtr_t* mtr) /* in: mtr or NULL */
-{
- ut_ad(ptr && end_ptr);
-
- /* The record is empty, except for the record initial part */
-
- if (page) {
- btr_page_reorganize_low(TRUE, page, index, mtr);
- }
-
- return(ptr);
-}
-
-/*****************************************************************
-Empties an index page. */
-static
-void
-btr_page_empty(
-/*===========*/
- page_t* page, /* in: page to be emptied */
- mtr_t* mtr) /* in: mtr */
-{
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- btr_search_drop_page_hash_index(page);
-
- /* Recreate the page: note that global data on page (possible
- segment headers, next page-field, etc.) is preserved intact */
-
- page_create(page, mtr, page_is_comp(page));
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-}
-
-/*****************************************************************
-Makes tree one level higher by splitting the root, and inserts
-the tuple. It is assumed that mtr contains an x-latch on the tree.
-NOTE that the operation of this function must always succeed,
-we cannot reverse it: therefore enough free disk space must be
-guaranteed to be available before this function is called. */
-
-rec_t*
-btr_root_raise_and_insert(
-/*======================*/
- /* out: inserted record */
- btr_cur_t* cursor, /* in: cursor at which to insert: must be
- on the root page; when the function returns,
- the cursor is positioned on the predecessor
- of the inserted record */
- dtuple_t* tuple, /* in: tuple to insert */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- page_t* root;
- page_t* new_page;
- ulint new_page_no;
- rec_t* rec;
- mem_heap_t* heap;
- dtuple_t* node_ptr;
- ulint level;
- rec_t* node_ptr_rec;
- page_cur_t* page_cursor;
-
- root = btr_cur_get_page(cursor);
- tree = btr_cur_get_tree(cursor);
-
- ut_ad(dict_tree_get_page(tree) == buf_frame_get_page_no(root));
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(root),
- MTR_MEMO_PAGE_X_FIX));
- btr_search_drop_page_hash_index(root);
-
- /* Allocate a new page to the tree. Root splitting is done by first
- moving the root records to the new page, emptying the root, putting
- a node pointer to the new page, and then splitting the new page. */
-
- new_page = btr_page_alloc(tree, 0, FSP_NO_DIR,
- btr_page_get_level(root, mtr), mtr);
-
- btr_page_create(new_page, tree, mtr);
-
- level = btr_page_get_level(root, mtr);
-
- /* Set the levels of the new index page and root page */
- btr_page_set_level(new_page, level, mtr);
- btr_page_set_level(root, level + 1, mtr);
-
- /* Set the next node and previous node fields of new page */
- btr_page_set_next(new_page, FIL_NULL, mtr);
- btr_page_set_prev(new_page, FIL_NULL, mtr);
-
- /* Move the records from root to the new page */
-
- page_move_rec_list_end(new_page, root, page_get_infimum_rec(root),
- cursor->index, mtr);
- /* If this is a pessimistic insert which is actually done to
- perform a pessimistic update then we have stored the lock
- information of the record to be inserted on the infimum of the
- root page: we cannot discard the lock structs on the root page */
-
- lock_update_root_raise(new_page, root);
-
- /* Create a memory heap where the node pointer is stored */
- heap = mem_heap_create(100);
-
- rec = page_rec_get_next(page_get_infimum_rec(new_page));
- new_page_no = buf_frame_get_page_no(new_page);
-
- /* Build the node pointer (= node key and page address) for the
- child */
-
- node_ptr = dict_tree_build_node_ptr(tree, rec, new_page_no, heap,
- level);
- /* Reorganize the root to get free space */
- btr_page_reorganize(root, cursor->index, mtr);
-
- page_cursor = btr_cur_get_page_cur(cursor);
-
- /* Insert node pointer to the root */
-
- page_cur_set_before_first(root, page_cursor);
-
- node_ptr_rec = page_cur_tuple_insert(page_cursor, node_ptr,
- cursor->index, mtr);
-
- ut_ad(node_ptr_rec);
-
- /* The node pointer must be marked as the predefined minimum record,
- as there is no lower alphabetical limit to records in the leftmost
- node of a level: */
-
- btr_set_min_rec_mark(node_ptr_rec, cursor->index->table->comp, mtr);
-
- /* Free the memory heap */
- mem_heap_free(heap);
-
- /* We play safe and reset the free bits for the new page */
-
-/* fprintf(stderr, "Root raise new page no %lu\n",
- buf_frame_get_page_no(new_page)); */
-
- ibuf_reset_free_bits(UT_LIST_GET_FIRST(tree->tree_indexes),
- new_page);
- /* Reposition the cursor to the child node */
- page_cur_search(new_page, cursor->index, tuple,
- PAGE_CUR_LE, page_cursor);
-
- /* Split the child and insert tuple */
- return(btr_page_split_and_insert(cursor, tuple, mtr));
-}
-
-/*****************************************************************
-Decides if the page should be split at the convergence point of inserts
-converging to the left. */
-
-ibool
-btr_page_get_split_rec_to_left(
-/*===========================*/
- /* out: TRUE if split recommended */
- btr_cur_t* cursor, /* in: cursor at which to insert */
- rec_t** split_rec) /* out: if split recommended,
- the first record on upper half page,
- or NULL if tuple to be inserted should
- be first */
-{
- page_t* page;
- rec_t* insert_point;
- rec_t* infimum;
-
- page = btr_cur_get_page(cursor);
- insert_point = btr_cur_get_rec(cursor);
-
- if (page_header_get_ptr(page, PAGE_LAST_INSERT)
- == page_rec_get_next(insert_point)) {
-
- infimum = page_get_infimum_rec(page);
-
- /* If the convergence is in the middle of a page, include also
- the record immediately before the new insert to the upper
- page. Otherwise, we could repeatedly move from page to page
- lots of records smaller than the convergence point. */
-
- if (infimum != insert_point
- && page_rec_get_next(infimum) != insert_point) {
-
- *split_rec = insert_point;
- } else {
- *split_rec = page_rec_get_next(insert_point);
- }
-
- return(TRUE);
- }
-
- return(FALSE);
-}
-
-/*****************************************************************
-Decides if the page should be split at the convergence point of inserts
-converging to the right. */
-
-ibool
-btr_page_get_split_rec_to_right(
-/*============================*/
- /* out: TRUE if split recommended */
- btr_cur_t* cursor, /* in: cursor at which to insert */
- rec_t** split_rec) /* out: if split recommended,
- the first record on upper half page,
- or NULL if tuple to be inserted should
- be first */
-{
- page_t* page;
- rec_t* insert_point;
- rec_t* supremum;
-
- page = btr_cur_get_page(cursor);
- insert_point = btr_cur_get_rec(cursor);
-
- /* We use eager heuristics: if the new insert would be right after
- the previous insert on the same page, we assume that there is a
- pattern of sequential inserts here. */
-
- if (page_header_get_ptr(page, PAGE_LAST_INSERT) == insert_point) {
-
- supremum = page_get_supremum_rec(page);
-
- if (page_rec_get_next(insert_point) != supremum
- && page_rec_get_next(page_rec_get_next(insert_point))
- != supremum) {
-
- /* If there are >= 2 user records up from the insert
- point, split all but 1 off. We want to keep one because
- then sequential inserts can use the adaptive hash
- index, as they can do the necessary checks of the right
- search position just by looking at the records on this
- page. */
-
- *split_rec = page_rec_get_next(
- page_rec_get_next(insert_point));
- } else {
- /* Else split at the new record to insert */
- *split_rec = NULL;
- }
-
- return(TRUE);
- }
-
- return(FALSE);
-}
-
-/*****************************************************************
-Calculates a split record such that the tuple will certainly fit on
-its half-page when the split is performed. We assume in this function
-only that the cursor page has at least one user record. */
-static
-rec_t*
-btr_page_get_sure_split_rec(
-/*========================*/
- /* out: split record, or NULL if
- tuple will be the first record on
- upper half-page */
- btr_cur_t* cursor, /* in: cursor at which insert
- should be made */
- dtuple_t* tuple) /* in: tuple to insert */
-{
- page_t* page;
- ulint insert_size;
- ulint free_space;
- ulint total_data;
- ulint total_n_recs;
- ulint total_space;
- ulint incl_data;
- rec_t* ins_rec;
- rec_t* rec;
- rec_t* next_rec;
- ulint n;
- mem_heap_t* heap;
- ulint* offsets;
-
- page = btr_cur_get_page(cursor);
-
- insert_size = rec_get_converted_size(cursor->index, tuple);
- free_space = page_get_free_space_of_empty(cursor->index->table->comp);
-
- /* free_space is now the free space of a created new page */
-
- total_data = page_get_data_size(page) + insert_size;
- total_n_recs = page_get_n_recs(page) + 1;
- ut_ad(total_n_recs >= 2);
- total_space = total_data + page_dir_calc_reserved_space(total_n_recs);
-
- n = 0;
- incl_data = 0;
- ins_rec = btr_cur_get_rec(cursor);
- rec = page_get_infimum_rec(page);
-
- heap = NULL;
- offsets = NULL;
-
- /* We start to include records to the left half, and when the
- space reserved by them exceeds half of total_space, then if
- the included records fit on the left page, they will be put there
- if something was left over also for the right page,
- otherwise the last included record will be the first on the right
- half page */
-
- for (;;) {
- /* Decide the next record to include */
- if (rec == ins_rec) {
- rec = NULL; /* NULL denotes that tuple is
- now included */
- } else if (rec == NULL) {
- rec = page_rec_get_next(ins_rec);
- } else {
- rec = page_rec_get_next(rec);
- }
-
- if (rec == NULL) {
- /* Include tuple */
- incl_data += insert_size;
- } else {
- offsets = rec_get_offsets(rec, cursor->index,
- offsets, ULINT_UNDEFINED, &heap);
- incl_data += rec_offs_size(offsets);
- }
-
- n++;
-
- if (incl_data + page_dir_calc_reserved_space(n)
- >= total_space / 2) {
-
- if (incl_data + page_dir_calc_reserved_space(n)
- <= free_space) {
- /* The next record will be the first on
- the right half page if it is not the
- supremum record of page */
-
- if (rec == ins_rec) {
- next_rec = NULL;
- } else if (rec == NULL) {
- next_rec = page_rec_get_next(ins_rec);
- } else {
- next_rec = page_rec_get_next(rec);
- }
- if (next_rec != page_get_supremum_rec(page)) {
- if (heap) {
- mem_heap_free(heap);
- }
- return(next_rec);
- }
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(rec);
- }
- }
-}
-
-/*****************************************************************
-Returns TRUE if the insert fits on the appropriate half-page with the
-chosen split_rec. */
-static
-ibool
-btr_page_insert_fits(
-/*=================*/
- /* out: TRUE if fits */
- btr_cur_t* cursor, /* in: cursor at which insert
- should be made */
- rec_t* split_rec, /* in: suggestion for first record
- on upper half-page, or NULL if
- tuple to be inserted should be first */
- const ulint* offsets, /* in: rec_get_offsets(
- split_rec, cursor->index) */
- dtuple_t* tuple, /* in: tuple to insert */
- mem_heap_t* heap) /* in: temporary memory heap */
-{
- page_t* page;
- ulint insert_size;
- ulint free_space;
- ulint total_data;
- ulint total_n_recs;
- rec_t* rec;
- rec_t* end_rec;
- ulint* offs;
-
- page = btr_cur_get_page(cursor);
-
- ut_ad(!split_rec == !offsets);
- ut_ad(!offsets
- || cursor->index->table->comp == rec_offs_comp(offsets));
- ut_ad(!offsets
- || rec_offs_validate(split_rec, cursor->index, offsets));
- ut_ad(page_is_comp(page) == cursor->index->table->comp);
-
- insert_size = rec_get_converted_size(cursor->index, tuple);
- free_space = page_get_free_space_of_empty(cursor->index->table->comp);
-
- /* free_space is now the free space of a created new page */
-
- total_data = page_get_data_size(page) + insert_size;
- total_n_recs = page_get_n_recs(page) + 1;
-
- /* We determine which records (from rec to end_rec, not including
- end_rec) will end up on the other half page from tuple when it is
- inserted. */
-
- if (split_rec == NULL) {
- rec = page_rec_get_next(page_get_infimum_rec(page));
- end_rec = page_rec_get_next(btr_cur_get_rec(cursor));
-
- } else if (cmp_dtuple_rec(tuple, split_rec, offsets) >= 0) {
-
- rec = page_rec_get_next(page_get_infimum_rec(page));
- end_rec = split_rec;
- } else {
- rec = split_rec;
- end_rec = page_get_supremum_rec(page);
- }
-
- if (total_data + page_dir_calc_reserved_space(total_n_recs)
- <= free_space) {
-
- /* Ok, there will be enough available space on the
- half page where the tuple is inserted */
-
- return(TRUE);
- }
-
- offs = NULL;
-
- while (rec != end_rec) {
- /* In this loop we calculate the amount of reserved
- space after rec is removed from page. */
-
- offs = rec_get_offsets(rec, cursor->index, offs,
- ULINT_UNDEFINED, &heap);
-
- total_data -= rec_offs_size(offs);
- total_n_recs--;
-
- if (total_data + page_dir_calc_reserved_space(total_n_recs)
- <= free_space) {
-
- /* Ok, there will be enough available space on the
- half page where the tuple is inserted */
-
- return(TRUE);
- }
-
- rec = page_rec_get_next(rec);
- }
-
- return(FALSE);
-}
-
-/***********************************************************
-Inserts a data tuple to a tree on a non-leaf level. It is assumed
-that mtr holds an x-latch on the tree. */
-
-void
-btr_insert_on_non_leaf_level(
-/*=========================*/
- dict_tree_t* tree, /* in: tree */
- ulint level, /* in: level, must be > 0 */
- dtuple_t* tuple, /* in: the record to be inserted */
- mtr_t* mtr) /* in: mtr */
-{
- big_rec_t* dummy_big_rec;
- btr_cur_t cursor;
- ulint err;
- rec_t* rec;
-
- ut_ad(level > 0);
-
- /* In the following, choose just any index from the tree as the
- first parameter for btr_cur_search_to_nth_level. */
-
- btr_cur_search_to_nth_level(UT_LIST_GET_FIRST(tree->tree_indexes),
- level, tuple, PAGE_CUR_LE,
- BTR_CONT_MODIFY_TREE,
- &cursor, 0, mtr);
-
- err = btr_cur_pessimistic_insert(BTR_NO_LOCKING_FLAG
- | BTR_KEEP_SYS_FLAG
- | BTR_NO_UNDO_LOG_FLAG,
- &cursor, tuple,
- &rec, &dummy_big_rec, NULL, mtr);
- ut_a(err == DB_SUCCESS);
-}
-
-/******************************************************************
-Attaches the halves of an index page on the appropriate level in an
-index tree. */
-static
-void
-btr_attach_half_pages(
-/*==================*/
- dict_tree_t* tree, /* in: the index tree */
- page_t* page, /* in: page to be split */
- rec_t* split_rec, /* in: first record on upper
- half page */
- page_t* new_page, /* in: the new half page */
- ulint direction, /* in: FSP_UP or FSP_DOWN */
- mtr_t* mtr) /* in: mtr */
-{
- ulint space;
- rec_t* node_ptr;
- page_t* prev_page;
- page_t* next_page;
- ulint prev_page_no;
- ulint next_page_no;
- ulint level;
- page_t* lower_page;
- page_t* upper_page;
- ulint lower_page_no;
- ulint upper_page_no;
- dtuple_t* node_ptr_upper;
- mem_heap_t* heap;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(new_page),
- MTR_MEMO_PAGE_X_FIX));
- ut_a(page_is_comp(page) == page_is_comp(new_page));
-
- /* Create a memory heap where the data tuple is stored */
- heap = mem_heap_create(1024);
-
- /* Based on split direction, decide upper and lower pages */
- if (direction == FSP_DOWN) {
-
- lower_page_no = buf_frame_get_page_no(new_page);
- upper_page_no = buf_frame_get_page_no(page);
- lower_page = new_page;
- upper_page = page;
-
- /* Look from the tree for the node pointer to page */
- node_ptr = btr_page_get_father_node_ptr(tree, page, mtr);
-
- /* Replace the address of the old child node (= page) with the
- address of the new lower half */
-
- btr_node_ptr_set_child_page_no(node_ptr,
- rec_get_offsets(node_ptr,
- UT_LIST_GET_FIRST(tree->tree_indexes),
- NULL, ULINT_UNDEFINED, &heap),
- lower_page_no, mtr);
- mem_heap_empty(heap);
- } else {
- lower_page_no = buf_frame_get_page_no(page);
- upper_page_no = buf_frame_get_page_no(new_page);
- lower_page = page;
- upper_page = new_page;
- }
-
- /* Get the level of the split pages */
- level = btr_page_get_level(page, mtr);
-
- /* Build the node pointer (= node key and page address) for the upper
- half */
-
- node_ptr_upper = dict_tree_build_node_ptr(tree, split_rec,
- upper_page_no, heap, level);
-
- /* Insert it next to the pointer to the lower half. Note that this
- may generate recursion leading to a split on the higher level. */
-
- btr_insert_on_non_leaf_level(tree, level + 1, node_ptr_upper, mtr);
-
- /* Free the memory heap */
- mem_heap_free(heap);
-
- /* Get the previous and next pages of page */
-
- prev_page_no = btr_page_get_prev(page, mtr);
- next_page_no = btr_page_get_next(page, mtr);
- space = buf_frame_get_space_id(page);
-
- /* Update page links of the level */
-
- if (prev_page_no != FIL_NULL) {
-
- prev_page = btr_page_get(space, prev_page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(prev_page) == page_is_comp(page));
-
- btr_page_set_next(prev_page, lower_page_no, mtr);
- }
-
- if (next_page_no != FIL_NULL) {
-
- next_page = btr_page_get(space, next_page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(next_page) == page_is_comp(page));
-
- btr_page_set_prev(next_page, upper_page_no, mtr);
- }
-
- btr_page_set_prev(lower_page, prev_page_no, mtr);
- btr_page_set_next(lower_page, upper_page_no, mtr);
- btr_page_set_level(lower_page, level, mtr);
-
- btr_page_set_prev(upper_page, lower_page_no, mtr);
- btr_page_set_next(upper_page, next_page_no, mtr);
- btr_page_set_level(upper_page, level, mtr);
-}
-
-/*****************************************************************
-Splits an index page to halves and inserts the tuple. It is assumed
-that mtr holds an x-latch to the index tree. NOTE: the tree x-latch
-is released within this function! NOTE that the operation of this
-function must always succeed, we cannot reverse it: therefore
-enough free disk space must be guaranteed to be available before
-this function is called. */
-
-rec_t*
-btr_page_split_and_insert(
-/*======================*/
- /* out: inserted record; NOTE: the tree
- x-latch is released! NOTE: 2 free disk
- pages must be available! */
- btr_cur_t* cursor, /* in: cursor at which to insert; when the
- function returns, the cursor is positioned
- on the predecessor of the inserted record */
- dtuple_t* tuple, /* in: tuple to insert */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- page_t* page;
- ulint page_no;
- byte direction;
- ulint hint_page_no;
- page_t* new_page;
- rec_t* split_rec;
- page_t* left_page;
- page_t* right_page;
- page_t* insert_page;
- page_cur_t* page_cursor;
- rec_t* first_rec;
- byte* buf = 0; /* remove warning */
- rec_t* move_limit;
- ibool insert_will_fit;
- ulint n_iterations = 0;
- rec_t* rec;
- mem_heap_t* heap;
- ulint n_uniq;
- ulint* offsets;
-
- heap = mem_heap_create(1024);
- n_uniq = dict_index_get_n_unique_in_tree(cursor->index);
-func_start:
- mem_heap_empty(heap);
- offsets = NULL;
- tree = btr_cur_get_tree(cursor);
-
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(dict_tree_get_lock(tree), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- page = btr_cur_get_page(cursor);
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- ut_ad(page_get_n_recs(page) >= 2);
-
- page_no = buf_frame_get_page_no(page);
-
- /* 1. Decide the split record; split_rec == NULL means that the
- tuple to be inserted should be the first record on the upper
- half-page */
-
- if (n_iterations > 0) {
- direction = FSP_UP;
- hint_page_no = page_no + 1;
- split_rec = btr_page_get_sure_split_rec(cursor, tuple);
-
- } else if (btr_page_get_split_rec_to_right(cursor, &split_rec)) {
- direction = FSP_UP;
- hint_page_no = page_no + 1;
-
- } else if (btr_page_get_split_rec_to_left(cursor, &split_rec)) {
- direction = FSP_DOWN;
- hint_page_no = page_no - 1;
- } else {
- direction = FSP_UP;
- hint_page_no = page_no + 1;
- split_rec = page_get_middle_rec(page);
- }
-
- /* 2. Allocate a new page to the tree */
- new_page = btr_page_alloc(tree, hint_page_no, direction,
- btr_page_get_level(page, mtr), mtr);
- btr_page_create(new_page, tree, mtr);
-
- /* 3. Calculate the first record on the upper half-page, and the
- first record (move_limit) on original page which ends up on the
- upper half */
-
- if (split_rec != NULL) {
- first_rec = split_rec;
- move_limit = split_rec;
- } else {
- buf = mem_alloc(rec_get_converted_size(cursor->index, tuple));
-
- first_rec = rec_convert_dtuple_to_rec(buf,
- cursor->index, tuple);
- move_limit = page_rec_get_next(btr_cur_get_rec(cursor));
- }
-
- /* 4. Do first the modifications in the tree structure */
-
- btr_attach_half_pages(tree, page, first_rec, new_page, direction, mtr);
-
- if (split_rec == NULL) {
- mem_free(buf);
- }
-
- /* If the split is made on the leaf level and the insert will fit
- on the appropriate half-page, we may release the tree x-latch.
- We can then move the records after releasing the tree latch,
- thus reducing the tree latch contention. */
-
- if (split_rec) {
- offsets = rec_get_offsets(split_rec, cursor->index, offsets,
- n_uniq, &heap);
-
- insert_will_fit = btr_page_insert_fits(cursor,
- split_rec, offsets, tuple, heap);
- } else {
- insert_will_fit = btr_page_insert_fits(cursor,
- NULL, NULL, tuple, heap);
- }
-
- if (insert_will_fit && (btr_page_get_level(page, mtr) == 0)) {
-
- mtr_memo_release(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK);
- }
-
- /* 5. Move then the records to the new page */
- if (direction == FSP_DOWN) {
-/* fputs("Split left\n", stderr); */
-
- page_move_rec_list_start(new_page, page, move_limit,
- cursor->index, mtr);
- left_page = new_page;
- right_page = page;
-
- lock_update_split_left(right_page, left_page);
- } else {
-/* fputs("Split right\n", stderr); */
-
- page_move_rec_list_end(new_page, page, move_limit,
- cursor->index, mtr);
- left_page = page;
- right_page = new_page;
-
- lock_update_split_right(right_page, left_page);
- }
-
- /* 6. The split and the tree modification is now completed. Decide the
- page where the tuple should be inserted */
-
- if (split_rec == NULL) {
- insert_page = right_page;
-
- } else {
- offsets = rec_get_offsets(first_rec, cursor->index,
- offsets, n_uniq, &heap);
-
- if (cmp_dtuple_rec(tuple, first_rec, offsets) >= 0) {
-
- insert_page = right_page;
- } else {
- insert_page = left_page;
- }
- }
-
- /* 7. Reposition the cursor for insert and try insertion */
- page_cursor = btr_cur_get_page_cur(cursor);
-
- page_cur_search(insert_page, cursor->index, tuple,
- PAGE_CUR_LE, page_cursor);
-
- rec = page_cur_tuple_insert(page_cursor, tuple, cursor->index, mtr);
-
- if (rec != NULL) {
- /* Insert fit on the page: update the free bits for the
- left and right pages in the same mtr */
-
- ibuf_update_free_bits_for_two_pages_low(cursor->index,
- left_page,
- right_page, mtr);
- /* fprintf(stderr, "Split and insert done %lu %lu\n",
- buf_frame_get_page_no(left_page),
- buf_frame_get_page_no(right_page)); */
- mem_heap_free(heap);
- return(rec);
- }
-
- /* 8. If insert did not fit, try page reorganization */
-
- btr_page_reorganize(insert_page, cursor->index, mtr);
-
- page_cur_search(insert_page, cursor->index, tuple,
- PAGE_CUR_LE, page_cursor);
- rec = page_cur_tuple_insert(page_cursor, tuple, cursor->index, mtr);
-
- if (rec == NULL) {
- /* The insert did not fit on the page: loop back to the
- start of the function for a new split */
-
- /* We play safe and reset the free bits for new_page */
- ibuf_reset_free_bits(cursor->index, new_page);
-
- /* fprintf(stderr, "Split second round %lu\n",
- buf_frame_get_page_no(page)); */
- n_iterations++;
- ut_ad(n_iterations < 2);
- ut_ad(!insert_will_fit);
-
- goto func_start;
- }
-
- /* Insert fit on the page: update the free bits for the
- left and right pages in the same mtr */
-
- ibuf_update_free_bits_for_two_pages_low(cursor->index, left_page,
- right_page, mtr);
- /* fprintf(stderr, "Split and insert done %lu %lu\n",
- buf_frame_get_page_no(left_page),
- buf_frame_get_page_no(right_page)); */
-
- ut_ad(page_validate(left_page, UT_LIST_GET_FIRST(tree->tree_indexes)));
- ut_ad(page_validate(right_page, UT_LIST_GET_FIRST(tree->tree_indexes)));
-
- mem_heap_free(heap);
- return(rec);
-}
-
-/*****************************************************************
-Removes a page from the level list of pages. */
-static
-void
-btr_level_list_remove(
-/*==================*/
- dict_tree_t* tree __attribute__((unused)), /* in: index tree */
- page_t* page, /* in: page to remove */
- mtr_t* mtr) /* in: mtr */
-{
- ulint space;
- ulint prev_page_no;
- page_t* prev_page;
- ulint next_page_no;
- page_t* next_page;
-
- ut_ad(tree && page && mtr);
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- /* Get the previous and next page numbers of page */
-
- prev_page_no = btr_page_get_prev(page, mtr);
- next_page_no = btr_page_get_next(page, mtr);
- space = buf_frame_get_space_id(page);
-
- /* Update page links of the level */
-
- if (prev_page_no != FIL_NULL) {
-
- prev_page = btr_page_get(space, prev_page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(prev_page) == page_is_comp(page));
-
- btr_page_set_next(prev_page, next_page_no, mtr);
- }
-
- if (next_page_no != FIL_NULL) {
-
- next_page = btr_page_get(space, next_page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(next_page) == page_is_comp(page));
-
- btr_page_set_prev(next_page, prev_page_no, mtr);
- }
-}
-
-/********************************************************************
-Writes the redo log record for setting an index record as the predefined
-minimum record. */
-UNIV_INLINE
-void
-btr_set_min_rec_mark_log(
-/*=====================*/
- rec_t* rec, /* in: record */
- ibool comp, /* TRUE=compact record format */
- mtr_t* mtr) /* in: mtr */
-{
- mlog_write_initial_log_record(rec,
- comp ? MLOG_COMP_REC_MIN_MARK : MLOG_REC_MIN_MARK, mtr);
-
- /* Write rec offset as a 2-byte ulint */
- mlog_catenate_ulint(mtr, rec - buf_frame_align(rec), MLOG_2BYTES);
-}
-
-/********************************************************************
-Parses the redo log record for setting an index record as the predefined
-minimum record. */
-
-byte*
-btr_parse_set_min_rec_mark(
-/*=======================*/
- /* out: end of log record or NULL */
- byte* ptr, /* in: buffer */
- byte* end_ptr,/* in: buffer end */
- ibool comp, /* in: TRUE=compact page format */
- page_t* page, /* in: page or NULL */
- mtr_t* mtr) /* in: mtr or NULL */
-{
- rec_t* rec;
-
- if (end_ptr < ptr + 2) {
-
- return(NULL);
- }
-
- if (page) {
- rec = page + mach_read_from_2(ptr);
-
- btr_set_min_rec_mark(rec, comp, mtr);
- }
-
- return(ptr + 2);
-}
-
-/********************************************************************
-Sets a record as the predefined minimum record. */
-
-void
-btr_set_min_rec_mark(
-/*=================*/
- rec_t* rec, /* in: record */
- ibool comp, /* in: TRUE=compact page format */
- mtr_t* mtr) /* in: mtr */
-{
- ulint info_bits;
-
- info_bits = rec_get_info_bits(rec, comp);
-
- rec_set_info_bits(rec, comp, info_bits | REC_INFO_MIN_REC_FLAG);
-
- btr_set_min_rec_mark_log(rec, comp, mtr);
-}
-
-/*****************************************************************
-Deletes on the upper level the node pointer to a page. */
-
-void
-btr_node_ptr_delete(
-/*================*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page whose node pointer is deleted */
- mtr_t* mtr) /* in: mtr */
-{
- rec_t* node_ptr;
- btr_cur_t cursor;
- ibool compressed;
- ulint err;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- /* Delete node pointer on father page */
-
- node_ptr = btr_page_get_father_node_ptr(tree, page, mtr);
-
- btr_cur_position(UT_LIST_GET_FIRST(tree->tree_indexes), node_ptr,
- &cursor);
- compressed = btr_cur_pessimistic_delete(&err, TRUE, &cursor, FALSE,
- mtr);
- ut_a(err == DB_SUCCESS);
-
- if (!compressed) {
- btr_cur_compress_if_useful(&cursor, mtr);
- }
-}
-
-/*****************************************************************
-If page is the only on its level, this function moves its records to the
-father page, thus reducing the tree height. */
-static
-void
-btr_lift_page_up(
-/*=============*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page which is the only on its level;
- must not be empty: use
- btr_discard_only_page_on_level if the last
- record from the page should be removed */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* father_page;
- ulint page_level;
- dict_index_t* index;
-
- ut_ad(btr_page_get_prev(page, mtr) == FIL_NULL);
- ut_ad(btr_page_get_next(page, mtr) == FIL_NULL);
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- father_page = buf_frame_align(
- btr_page_get_father_node_ptr(tree, page, mtr));
-
- page_level = btr_page_get_level(page, mtr);
- index = UT_LIST_GET_FIRST(tree->tree_indexes);
-
- btr_search_drop_page_hash_index(page);
-
- /* Make the father empty */
- btr_page_empty(father_page, mtr);
-
- /* Move records to the father */
- page_copy_rec_list_end(father_page, page, page_get_infimum_rec(page),
- index, mtr);
- lock_update_copy_and_discard(father_page, page);
-
- btr_page_set_level(father_page, page_level, mtr);
-
- /* Free the file page */
- btr_page_free(tree, page, mtr);
-
- /* We play safe and reset the free bits for the father */
- ibuf_reset_free_bits(index, father_page);
- ut_ad(page_validate(father_page, index));
- ut_ad(btr_check_node_ptr(tree, father_page, mtr));
-}
-
-/*****************************************************************
-Tries to merge the page first to the left immediate brother if such a
-brother exists, and the node pointers to the current page and to the brother
-reside on the same page. If the left brother does not satisfy these
-conditions, looks at the right brother. If the page is the only one on that
-level lifts the records of the page to the father page, thus reducing the
-tree height. It is assumed that mtr holds an x-latch on the tree and on the
-page. If cursor is on the leaf level, mtr must also hold x-latches to the
-brothers, if they exist. NOTE: it is assumed that the caller has reserved
-enough free extents so that the compression will always succeed if done! */
-
-void
-btr_compress(
-/*=========*/
- btr_cur_t* cursor, /* in: cursor on the page to merge or lift;
- the page must not be empty: in record delete
- use btr_discard_page if the page would become
- empty */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- ulint space;
- ulint left_page_no;
- ulint right_page_no;
- page_t* merge_page;
- page_t* father_page;
- ibool is_left;
- page_t* page;
- rec_t* orig_pred;
- rec_t* orig_succ;
- rec_t* node_ptr;
- ulint data_size;
- ulint n_recs;
- ulint max_ins_size;
- ulint max_ins_size_reorg;
- ulint level;
- ibool comp = cursor->index->table->comp;
-
- page = btr_cur_get_page(cursor);
- tree = btr_cur_get_tree(cursor);
- ut_a(comp == page_is_comp(page));
-
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- level = btr_page_get_level(page, mtr);
- space = dict_tree_get_space(tree);
-
- left_page_no = btr_page_get_prev(page, mtr);
- right_page_no = btr_page_get_next(page, mtr);
-
-/* fprintf(stderr, "Merge left page %lu right %lu \n", left_page_no,
- right_page_no); */
-
- node_ptr = btr_page_get_father_node_ptr(tree, page, mtr);
- ut_ad(!comp || rec_get_status(node_ptr) == REC_STATUS_NODE_PTR);
- father_page = buf_frame_align(node_ptr);
- ut_a(comp == page_is_comp(father_page));
-
- /* Decide the page to which we try to merge and which will inherit
- the locks */
-
- if (left_page_no != FIL_NULL) {
-
- is_left = TRUE;
- merge_page = btr_page_get(space, left_page_no, RW_X_LATCH,
- mtr);
- } else if (right_page_no != FIL_NULL) {
-
- is_left = FALSE;
- merge_page = btr_page_get(space, right_page_no, RW_X_LATCH,
- mtr);
- } else {
- /* The page is the only one on the level, lift the records
- to the father */
- btr_lift_page_up(tree, page, mtr);
-
- return;
- }
-
- n_recs = page_get_n_recs(page);
- data_size = page_get_data_size(page);
- ut_a(page_is_comp(merge_page) == page_is_comp(page));
-
- max_ins_size_reorg = page_get_max_insert_size_after_reorganize(
- merge_page, n_recs);
- if (data_size > max_ins_size_reorg) {
-
- /* No space for merge */
-
- return;
- }
-
- ut_ad(page_validate(merge_page, cursor->index));
-
- max_ins_size = page_get_max_insert_size(merge_page, n_recs);
-
- if (data_size > max_ins_size) {
-
- /* We have to reorganize merge_page */
-
- btr_page_reorganize(merge_page, cursor->index, mtr);
-
- max_ins_size = page_get_max_insert_size(merge_page, n_recs);
-
- ut_ad(page_validate(merge_page, cursor->index));
- ut_ad(page_get_max_insert_size(merge_page, n_recs)
- == max_ins_size_reorg);
- }
-
- if (data_size > max_ins_size) {
-
- /* Add fault tolerance, though this should never happen */
-
- return;
- }
-
- btr_search_drop_page_hash_index(page);
-
- /* Remove the page from the level list */
- btr_level_list_remove(tree, page, mtr);
-
- if (is_left) {
- btr_node_ptr_delete(tree, page, mtr);
- } else {
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
- /* Replace the address of the old child node (= page) with the
- address of the merge page to the right */
-
- btr_node_ptr_set_child_page_no(node_ptr,
- rec_get_offsets(node_ptr, cursor->index,
- offsets_, ULINT_UNDEFINED, &heap),
- right_page_no, mtr);
- if (heap) {
- mem_heap_free(heap);
- }
- btr_node_ptr_delete(tree, merge_page, mtr);
- }
-
- /* Move records to the merge page */
- if (is_left) {
- orig_pred = page_rec_get_prev(
- page_get_supremum_rec(merge_page));
- page_copy_rec_list_start(merge_page, page,
- page_get_supremum_rec(page), cursor->index, mtr);
-
- lock_update_merge_left(merge_page, orig_pred, page);
- } else {
- orig_succ = page_rec_get_next(
- page_get_infimum_rec(merge_page));
- page_copy_rec_list_end(merge_page, page,
- page_get_infimum_rec(page), cursor->index, mtr);
-
- lock_update_merge_right(orig_succ, page);
- }
-
- /* We have added new records to merge_page: update its free bits */
- ibuf_update_free_bits_if_full(cursor->index, merge_page,
- UNIV_PAGE_SIZE, ULINT_UNDEFINED);
-
- ut_ad(page_validate(merge_page, cursor->index));
-
- /* Free the file page */
- btr_page_free(tree, page, mtr);
-
- ut_ad(btr_check_node_ptr(tree, merge_page, mtr));
-}
-
-/*****************************************************************
-Discards a page that is the only page on its level. */
-static
-void
-btr_discard_only_page_on_level(
-/*===========================*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: page which is the only on its level */
- mtr_t* mtr) /* in: mtr */
-{
- rec_t* node_ptr;
- page_t* father_page;
- ulint page_level;
-
- ut_ad(btr_page_get_prev(page, mtr) == FIL_NULL);
- ut_ad(btr_page_get_next(page, mtr) == FIL_NULL);
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- btr_search_drop_page_hash_index(page);
-
- node_ptr = btr_page_get_father_node_ptr(tree, page, mtr);
- father_page = buf_frame_align(node_ptr);
-
- page_level = btr_page_get_level(page, mtr);
-
- lock_update_discard(page_get_supremum_rec(father_page), page);
-
- btr_page_set_level(father_page, page_level, mtr);
-
- /* Free the file page */
- btr_page_free(tree, page, mtr);
-
- if (buf_frame_get_page_no(father_page) == dict_tree_get_page(tree)) {
- /* The father is the root page */
-
- btr_page_empty(father_page, mtr);
-
- /* We play safe and reset the free bits for the father */
- ibuf_reset_free_bits(UT_LIST_GET_FIRST(tree->tree_indexes),
- father_page);
- } else {
- ut_ad(page_get_n_recs(father_page) == 1);
-
- btr_discard_only_page_on_level(tree, father_page, mtr);
- }
-}
-
-/*****************************************************************
-Discards a page from a B-tree. This is used to remove the last record from
-a B-tree page: the whole page must be removed at the same time. This cannot
-be used for the root page, which is allowed to be empty. */
-
-void
-btr_discard_page(
-/*=============*/
- btr_cur_t* cursor, /* in: cursor on the page to discard: not on
- the root page */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- ulint space;
- ulint left_page_no;
- ulint right_page_no;
- page_t* merge_page;
- ibool is_left;
- page_t* page;
- rec_t* node_ptr;
-
- page = btr_cur_get_page(cursor);
- tree = btr_cur_get_tree(cursor);
-
- ut_ad(dict_tree_get_page(tree) != buf_frame_get_page_no(page));
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- space = dict_tree_get_space(tree);
-
- /* Decide the page which will inherit the locks */
-
- left_page_no = btr_page_get_prev(page, mtr);
- right_page_no = btr_page_get_next(page, mtr);
-
- if (left_page_no != FIL_NULL) {
- is_left = TRUE;
- merge_page = btr_page_get(space, left_page_no, RW_X_LATCH,
- mtr);
- } else if (right_page_no != FIL_NULL) {
- is_left = FALSE;
- merge_page = btr_page_get(space, right_page_no, RW_X_LATCH,
- mtr);
- } else {
- btr_discard_only_page_on_level(tree, page, mtr);
-
- return;
- }
-
- ut_a(page_is_comp(merge_page) == page_is_comp(page));
- btr_search_drop_page_hash_index(page);
-
- if (left_page_no == FIL_NULL && btr_page_get_level(page, mtr) > 0) {
-
- /* We have to mark the leftmost node pointer on the right
- side page as the predefined minimum record */
-
- node_ptr = page_rec_get_next(page_get_infimum_rec(merge_page));
-
- ut_ad(node_ptr != page_get_supremum_rec(merge_page));
-
- btr_set_min_rec_mark(node_ptr,
- cursor->index->table->comp, mtr);
- }
-
- btr_node_ptr_delete(tree, page, mtr);
-
- /* Remove the page from the level list */
- btr_level_list_remove(tree, page, mtr);
-
- if (is_left) {
- lock_update_discard(page_get_supremum_rec(merge_page), page);
- } else {
- lock_update_discard(page_rec_get_next(
- page_get_infimum_rec(merge_page)), page);
- }
-
- /* Free the file page */
- btr_page_free(tree, page, mtr);
-
- ut_ad(btr_check_node_ptr(tree, merge_page, mtr));
-}
-
-/*****************************************************************
-Prints size info of a B-tree. */
-
-void
-btr_print_size(
-/*===========*/
- dict_tree_t* tree) /* in: index tree */
-{
- page_t* root;
- fseg_header_t* seg;
- mtr_t mtr;
-
- if (tree->type & DICT_IBUF) {
- fputs(
- "Sorry, cannot print info of an ibuf tree: use ibuf functions\n",
- stderr);
-
- return;
- }
-
- mtr_start(&mtr);
-
- root = btr_root_get(tree, &mtr);
-
- seg = root + PAGE_HEADER + PAGE_BTR_SEG_TOP;
-
- fputs("INFO OF THE NON-LEAF PAGE SEGMENT\n", stderr);
- fseg_print(seg, &mtr);
-
- if (!(tree->type & DICT_UNIVERSAL)) {
-
- seg = root + PAGE_HEADER + PAGE_BTR_SEG_LEAF;
-
- fputs("INFO OF THE LEAF PAGE SEGMENT\n", stderr);
- fseg_print(seg, &mtr);
- }
-
- mtr_commit(&mtr);
-}
-
-/****************************************************************
-Prints recursively index tree pages. */
-static
-void
-btr_print_recursive(
-/*================*/
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: index page */
- ulint width, /* in: print this many entries from start
- and end */
- mem_heap_t** heap, /* in/out: heap for rec_get_offsets() */
- ulint** offsets,/* in/out: buffer for rec_get_offsets() */
- mtr_t* mtr) /* in: mtr */
-{
- page_cur_t cursor;
- ulint n_recs;
- ulint i = 0;
- mtr_t mtr2;
- rec_t* node_ptr;
- page_t* child;
- dict_index_t* index;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- fprintf(stderr, "NODE ON LEVEL %lu page number %lu\n",
- (ulong) btr_page_get_level(page, mtr),
- (ulong) buf_frame_get_page_no(page));
-
- index = UT_LIST_GET_FIRST(tree->tree_indexes);
- page_print(page, index, width, width);
-
- n_recs = page_get_n_recs(page);
-
- page_cur_set_before_first(page, &cursor);
- page_cur_move_to_next(&cursor);
-
- while (!page_cur_is_after_last(&cursor)) {
-
- if (0 == btr_page_get_level(page, mtr)) {
-
- /* If this is the leaf level, do nothing */
-
- } else if ((i <= width) || (i >= n_recs - width)) {
-
- mtr_start(&mtr2);
-
- node_ptr = page_cur_get_rec(&cursor);
-
- *offsets = rec_get_offsets(node_ptr, index, *offsets,
- ULINT_UNDEFINED, heap);
- child = btr_node_ptr_get_child(node_ptr,
- *offsets, &mtr2);
- btr_print_recursive(tree, child, width,
- heap, offsets, &mtr2);
- mtr_commit(&mtr2);
- }
-
- page_cur_move_to_next(&cursor);
- i++;
- }
-}
-
-/******************************************************************
-Prints directories and other info of all nodes in the tree. */
-
-void
-btr_print_tree(
-/*===========*/
- dict_tree_t* tree, /* in: tree */
- ulint width) /* in: print this many entries from start
- and end */
-{
- mtr_t mtr;
- page_t* root;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- fputs("--------------------------\n"
- "INDEX TREE PRINT\n", stderr);
-
- mtr_start(&mtr);
-
- root = btr_root_get(tree, &mtr);
-
- btr_print_recursive(tree, root, width, &heap, &offsets, &mtr);
- if (heap) {
- mem_heap_free(heap);
- }
-
- mtr_commit(&mtr);
-
- btr_validate_tree(tree);
-}
-
-/****************************************************************
-Checks that the node pointer to a page is appropriate. */
-
-ibool
-btr_check_node_ptr(
-/*===============*/
- /* out: TRUE */
- dict_tree_t* tree, /* in: index tree */
- page_t* page, /* in: index page */
- mtr_t* mtr) /* in: mtr */
-{
- mem_heap_t* heap;
- rec_t* node_ptr;
- dtuple_t* node_ptr_tuple;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- if (dict_tree_get_page(tree) == buf_frame_get_page_no(page)) {
-
- return(TRUE);
- }
-
- node_ptr = btr_page_get_father_node_ptr(tree, page, mtr);
-
- if (btr_page_get_level(page, mtr) == 0) {
-
- return(TRUE);
- }
-
- heap = mem_heap_create(256);
-
- node_ptr_tuple = dict_tree_build_node_ptr(
- tree,
- page_rec_get_next(page_get_infimum_rec(page)),
- 0, heap, btr_page_get_level(page, mtr));
-
- ut_a(cmp_dtuple_rec(node_ptr_tuple, node_ptr,
- rec_get_offsets(node_ptr,
- dict_tree_find_index(tree, node_ptr),
- NULL, ULINT_UNDEFINED, &heap)) == 0);
-
- mem_heap_free(heap);
-
- return(TRUE);
-}
-
-/****************************************************************
-Display identification information for a record. */
-static
-void
-btr_index_rec_validate_report(
-/*==========================*/
- page_t* page, /* in: index page */
- rec_t* rec, /* in: index record */
- dict_index_t* index) /* in: index */
-{
- fputs("InnoDB: Record in ", stderr);
- dict_index_name_print(stderr, NULL, index);
- fprintf(stderr, ", page %lu, at offset %lu\n",
- buf_frame_get_page_no(page), (ulint)(rec - page));
-}
-
-/****************************************************************
-Checks the size and number of fields in a record based on the definition of
-the index. */
-
-ibool
-btr_index_rec_validate(
-/*====================*/
- /* out: TRUE if ok */
- rec_t* rec, /* in: index record */
- dict_index_t* index, /* in: index */
- ibool dump_on_error) /* in: TRUE if the function
- should print hex dump of record
- and page on error */
-{
- ulint len;
- ulint n;
- ulint i;
- page_t* page;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- page = buf_frame_align(rec);
-
- if (index->type & DICT_UNIVERSAL) {
- /* The insert buffer index tree can contain records from any
- other index: we cannot check the number of fields or
- their length */
-
- return(TRUE);
- }
-
- n = dict_index_get_n_fields(index);
-
- if (!index->table->comp && rec_get_n_fields_old(rec) != n) {
- btr_index_rec_validate_report(page, rec, index);
- fprintf(stderr, "InnoDB: has %lu fields, should have %lu\n",
- (ulong) rec_get_n_fields_old(rec), (ulong) n);
-
- if (dump_on_error) {
- buf_page_print(page);
-
- fputs("InnoDB: corrupt record ", stderr);
- rec_print_old(stderr, rec);
- putc('\n', stderr);
- }
- return(FALSE);
- }
-
- offsets = rec_get_offsets(rec, index, offsets, ULINT_UNDEFINED, &heap);
-
- for (i = 0; i < n; i++) {
- dtype_t* type = dict_index_get_nth_type(index, i);
- ulint fixed_size = dtype_get_fixed_size(type);
-
- rec_get_nth_field(rec, offsets, i, &len);
-
- /* Note that prefix indexes are not fixed size even when
- their type is CHAR. */
-
- if ((dict_index_get_nth_field(index, i)->prefix_len == 0
- && len != UNIV_SQL_NULL && fixed_size
- && len != fixed_size)
- ||
- (dict_index_get_nth_field(index, i)->prefix_len > 0
- && len != UNIV_SQL_NULL
- && len >
- dict_index_get_nth_field(index, i)->prefix_len)) {
-
- btr_index_rec_validate_report(page, rec, index);
- fprintf(stderr,
-"InnoDB: field %lu len is %lu, should be %lu\n",
- (ulong) i, (ulong) len, (ulong) dtype_get_fixed_size(type));
-
- if (dump_on_error) {
- buf_page_print(page);
-
- fputs("InnoDB: corrupt record ", stderr);
- rec_print_new(stderr, rec, offsets);
- putc('\n', stderr);
- }
- if (heap) {
- mem_heap_free(heap);
- }
- return(FALSE);
- }
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(TRUE);
-}
-
-/****************************************************************
-Checks the size and number of fields in records based on the definition of
-the index. */
-static
-ibool
-btr_index_page_validate(
-/*====================*/
- /* out: TRUE if ok */
- page_t* page, /* in: index page */
- dict_index_t* index) /* in: index */
-{
- page_cur_t cur;
- ibool ret = TRUE;
-
- page_cur_set_before_first(page, &cur);
- page_cur_move_to_next(&cur);
-
- for (;;) {
- if (page_cur_is_after_last(&cur)) {
-
- break;
- }
-
- if (!btr_index_rec_validate(cur.rec, index, TRUE)) {
-
- return(FALSE);
- }
-
- page_cur_move_to_next(&cur);
- }
-
- return(ret);
-}
-
-/****************************************************************
-Report an error on one page of an index tree. */
-static
-void
-btr_validate_report1(
- /* out: TRUE if ok */
- dict_index_t* index, /* in: index */
- ulint level, /* in: B-tree level */
- page_t* page) /* in: index page */
-{
- fprintf(stderr, "InnoDB: Error in page %lu of ",
- buf_frame_get_page_no(page));
- dict_index_name_print(stderr, NULL, index);
- if (level) {
- fprintf(stderr, ", index tree level %lu", level);
- }
- putc('\n', stderr);
-}
-
-/****************************************************************
-Report an error on two pages of an index tree. */
-static
-void
-btr_validate_report2(
- /* out: TRUE if ok */
- dict_index_t* index, /* in: index */
- ulint level, /* in: B-tree level */
- page_t* page1, /* in: first index page */
- page_t* page2) /* in: second index page */
-{
- fprintf(stderr, "InnoDB: Error in pages %lu and %lu of ",
- buf_frame_get_page_no(page1),
- buf_frame_get_page_no(page2));
- dict_index_name_print(stderr, NULL, index);
- if (level) {
- fprintf(stderr, ", index tree level %lu", level);
- }
- putc('\n', stderr);
-}
-
-/****************************************************************
-Validates index tree level. */
-static
-ibool
-btr_validate_level(
-/*===============*/
- /* out: TRUE if ok */
- dict_tree_t* tree, /* in: index tree */
- ulint level) /* in: level number */
-{
- ulint space;
- page_t* page;
- page_t* right_page = 0; /* remove warning */
- page_t* father_page;
- page_t* right_father_page;
- rec_t* node_ptr;
- rec_t* right_node_ptr;
- rec_t* rec;
- ulint right_page_no;
- ulint left_page_no;
- page_cur_t cursor;
- dtuple_t* node_ptr_tuple;
- ibool ret = TRUE;
- dict_index_t* index;
- mtr_t mtr;
- mem_heap_t* heap = mem_heap_create(256);
- ulint* offsets = NULL;
- ulint* offsets2= NULL;
-
- mtr_start(&mtr);
-
- mtr_x_lock(dict_tree_get_lock(tree), &mtr);
-
- page = btr_root_get(tree, &mtr);
-
- space = buf_frame_get_space_id(page);
-
- index = UT_LIST_GET_FIRST(tree->tree_indexes);
-
- while (level != btr_page_get_level(page, &mtr)) {
-
- ut_a(btr_page_get_level(page, &mtr) > 0);
-
- page_cur_set_before_first(page, &cursor);
- page_cur_move_to_next(&cursor);
-
- node_ptr = page_cur_get_rec(&cursor);
- offsets = rec_get_offsets(node_ptr, index, offsets,
- ULINT_UNDEFINED, &heap);
- page = btr_node_ptr_get_child(node_ptr, offsets, &mtr);
- }
-
- /* Now we are on the desired level. Loop through the pages on that
- level. */
-loop:
- mem_heap_empty(heap);
- offsets = offsets2 = NULL;
- mtr_x_lock(dict_tree_get_lock(tree), &mtr);
-
- /* Check ordering etc. of records */
-
- if (!page_validate(page, index)) {
- btr_validate_report1(index, level, page);
-
- ret = FALSE;
- } else if (level == 0) {
- /* We are on level 0. Check that the records have the right
- number of fields, and field lengths are right. */
-
- if (!btr_index_page_validate(page, index)) {
-
- ret = FALSE;
- }
- }
-
- ut_a(btr_page_get_level(page, &mtr) == level);
-
- right_page_no = btr_page_get_next(page, &mtr);
- left_page_no = btr_page_get_prev(page, &mtr);
-
- ut_a((page_get_n_recs(page) > 0)
- || ((level == 0) &&
- (buf_frame_get_page_no(page) == dict_tree_get_page(tree))));
-
- if (right_page_no != FIL_NULL) {
- rec_t* right_rec;
- right_page = btr_page_get(space, right_page_no, RW_X_LATCH,
- &mtr);
- ut_a(page_is_comp(right_page) == page_is_comp(page));
- rec = page_rec_get_prev(page_get_supremum_rec(page));
- right_rec = page_rec_get_next(
- page_get_infimum_rec(right_page));
- offsets = rec_get_offsets(rec, index,
- offsets, ULINT_UNDEFINED, &heap);
- offsets2 = rec_get_offsets(right_rec, index,
- offsets2, ULINT_UNDEFINED, &heap);
- if (cmp_rec_rec(rec, right_rec, offsets, offsets2, index)
- >= 0) {
-
- btr_validate_report2(index, level, page, right_page);
-
- fputs("InnoDB: records in wrong order"
- " on adjacent pages\n", stderr);
-
- buf_page_print(page);
- buf_page_print(right_page);
-
- fputs("InnoDB: record ", stderr);
- rec = page_rec_get_prev(page_get_supremum_rec(page));
- rec_print(stderr, rec, index);
- putc('\n', stderr);
- fputs("InnoDB: record ", stderr);
- rec = page_rec_get_next(page_get_infimum_rec(
- right_page));
- rec_print(stderr, rec, index);
- putc('\n', stderr);
-
- ret = FALSE;
- }
- }
-
- if (level > 0 && left_page_no == FIL_NULL) {
- ut_a(REC_INFO_MIN_REC_FLAG & rec_get_info_bits(
- page_rec_get_next(page_get_infimum_rec(page)),
- index->table->comp));
- }
-
- if (buf_frame_get_page_no(page) != dict_tree_get_page(tree)) {
-
- /* Check father node pointers */
-
- node_ptr = btr_page_get_father_node_ptr(tree, page, &mtr);
- father_page = buf_frame_align(node_ptr);
- offsets = rec_get_offsets(node_ptr, index,
- offsets, ULINT_UNDEFINED, &heap);
-
- if (btr_node_ptr_get_child_page_no(node_ptr, offsets) !=
- buf_frame_get_page_no(page)
- || node_ptr != btr_page_get_father_for_rec(tree, page,
- page_rec_get_prev(page_get_supremum_rec(page)),
- &mtr)) {
- btr_validate_report1(index, level, page);
-
- fputs("InnoDB: node pointer to the page is wrong\n",
- stderr);
-
- buf_page_print(father_page);
- buf_page_print(page);
-
- fputs("InnoDB: node ptr ", stderr);
- rec_print_new(stderr, node_ptr, offsets);
-
- fprintf(stderr, "\n"
- "InnoDB: node ptr child page n:o %lu\n",
- (unsigned long) btr_node_ptr_get_child_page_no(
- node_ptr, offsets));
-
- fputs("InnoDB: record on page ", stderr);
- rec = btr_page_get_father_for_rec(tree, page,
- page_rec_get_prev(page_get_supremum_rec(page)),
- &mtr);
- rec_print(stderr, rec, index);
- putc('\n', stderr);
- ret = FALSE;
-
- goto node_ptr_fails;
- }
-
- if (btr_page_get_level(page, &mtr) > 0) {
- offsets = rec_get_offsets(node_ptr, index,
- offsets, ULINT_UNDEFINED, &heap);
-
- node_ptr_tuple = dict_tree_build_node_ptr(
- tree,
- page_rec_get_next(
- page_get_infimum_rec(page)),
- 0, heap,
- btr_page_get_level(page, &mtr));
-
- if (cmp_dtuple_rec(node_ptr_tuple, node_ptr,
- offsets)) {
- rec_t* first_rec = page_rec_get_next(
- page_get_infimum_rec(page));
-
- btr_validate_report1(index, level, page);
-
- buf_page_print(father_page);
- buf_page_print(page);
-
- fputs("InnoDB: Error: node ptrs differ"
- " on levels > 0\n"
- "InnoDB: node ptr ", stderr);
- rec_print_new(stderr, node_ptr, offsets);
- fputs("InnoDB: first rec ", stderr);
- rec_print(stderr, first_rec, index);
- putc('\n', stderr);
- ret = FALSE;
-
- goto node_ptr_fails;
- }
- }
-
- if (left_page_no == FIL_NULL) {
- ut_a(node_ptr == page_rec_get_next(
- page_get_infimum_rec(father_page)));
- ut_a(btr_page_get_prev(father_page, &mtr) == FIL_NULL);
- }
-
- if (right_page_no == FIL_NULL) {
- ut_a(node_ptr == page_rec_get_prev(
- page_get_supremum_rec(father_page)));
- ut_a(btr_page_get_next(father_page, &mtr) == FIL_NULL);
- }
-
- if (right_page_no != FIL_NULL) {
-
- right_node_ptr = btr_page_get_father_node_ptr(tree,
- right_page, &mtr);
- if (page_rec_get_next(node_ptr) !=
- page_get_supremum_rec(father_page)) {
-
- if (right_node_ptr !=
- page_rec_get_next(node_ptr)) {
- ret = FALSE;
- fputs(
- "InnoDB: node pointer to the right page is wrong\n",
- stderr);
-
- btr_validate_report1(index, level,
- page);
-
- buf_page_print(father_page);
- buf_page_print(page);
- buf_page_print(right_page);
- }
- } else {
- right_father_page = buf_frame_align(
- right_node_ptr);
-
- if (right_node_ptr != page_rec_get_next(
- page_get_infimum_rec(
- right_father_page))) {
- ret = FALSE;
- fputs(
- "InnoDB: node pointer 2 to the right page is wrong\n",
- stderr);
-
- btr_validate_report1(index, level,
- page);
-
- buf_page_print(father_page);
- buf_page_print(right_father_page);
- buf_page_print(page);
- buf_page_print(right_page);
- }
-
- if (buf_frame_get_page_no(right_father_page)
- != btr_page_get_next(father_page, &mtr)) {
-
- ret = FALSE;
- fputs(
- "InnoDB: node pointer 3 to the right page is wrong\n",
- stderr);
-
- btr_validate_report1(index, level,
- page);
-
- buf_page_print(father_page);
- buf_page_print(right_father_page);
- buf_page_print(page);
- buf_page_print(right_page);
- }
- }
- }
- }
-
-node_ptr_fails:
- mtr_commit(&mtr);
-
- if (right_page_no != FIL_NULL) {
- ibool comp = page_is_comp(page);
- mtr_start(&mtr);
-
- page = btr_page_get(space, right_page_no, RW_X_LATCH, &mtr);
- ut_a(page_is_comp(page) == comp);
-
- goto loop;
- }
-
- mem_heap_free(heap);
- return(ret);
-}
-
-/******************************************************************
-Checks the consistency of an index tree. */
-
-ibool
-btr_validate_tree(
-/*==============*/
- /* out: TRUE if ok */
- dict_tree_t* tree) /* in: tree */
-{
- mtr_t mtr;
- page_t* root;
- ulint i;
- ulint n;
-
- mtr_start(&mtr);
- mtr_x_lock(dict_tree_get_lock(tree), &mtr);
-
- root = btr_root_get(tree, &mtr);
- n = btr_page_get_level(root, &mtr);
-
- for (i = 0; i <= n; i++) {
-
- if (!btr_validate_level(tree, n - i)) {
-
- mtr_commit(&mtr);
-
- return(FALSE);
- }
- }
-
- mtr_commit(&mtr);
-
- return(TRUE);
-}
diff --git a/innobase/btr/btr0cur.c b/innobase/btr/btr0cur.c
deleted file mode 100644
index e093c911f22..00000000000
--- a/innobase/btr/btr0cur.c
+++ /dev/null
@@ -1,3781 +0,0 @@
-/******************************************************
-The index tree cursor
-
-All changes that row operations make to a B-tree or the records
-there must go through this module! Undo log records are written here
-of every modify or insert of a clustered index record.
-
- NOTE!!!
-To make sure we do not run out of disk space during a pessimistic
-insert or update, we have to reserve 2 x the height of the index tree
-many pages in the tablespace before we start the operation, because
-if leaf splitting has been started, it is difficult to undo, except
-by crashing the database and doing a roll-forward.
-
-(c) 1994-2001 Innobase Oy
-
-Created 10/16/1994 Heikki Tuuri
-*******************************************************/
-
-#include "btr0cur.h"
-
-#ifdef UNIV_NONINL
-#include "btr0cur.ic"
-#endif
-
-#include "page0page.h"
-#include "rem0rec.h"
-#include "rem0cmp.h"
-#include "btr0btr.h"
-#include "btr0sea.h"
-#include "row0upd.h"
-#include "trx0rec.h"
-#include "que0que.h"
-#include "row0row.h"
-#include "srv0srv.h"
-#include "ibuf0ibuf.h"
-#include "lock0lock.h"
-
-/* If the following is set to TRUE, this module prints a lot of
-trace information of individual record operations */
-ibool btr_cur_print_record_ops = FALSE;
-
-ulint btr_cur_rnd = 0;
-
-ulint btr_cur_n_non_sea = 0;
-ulint btr_cur_n_sea = 0;
-ulint btr_cur_n_non_sea_old = 0;
-ulint btr_cur_n_sea_old = 0;
-
-/* In the optimistic insert, if the insert does not fit, but this much space
-can be released by page reorganize, then it is reorganized */
-
-#define BTR_CUR_PAGE_REORGANIZE_LIMIT (UNIV_PAGE_SIZE / 32)
-
-/* When estimating number of different kay values in an index sample
-this many index pages */
-#define BTR_KEY_VAL_ESTIMATE_N_PAGES 8
-
-/* The structure of a BLOB part header */
-/*--------------------------------------*/
-#define BTR_BLOB_HDR_PART_LEN 0 /* BLOB part len on this
- page */
-#define BTR_BLOB_HDR_NEXT_PAGE_NO 4 /* next BLOB part page no,
- FIL_NULL if none */
-/*--------------------------------------*/
-#define BTR_BLOB_HDR_SIZE 8
-
-/***********************************************************************
-Marks all extern fields in a record as owned by the record. This function
-should be called if the delete mark of a record is removed: a not delete
-marked record always owns all its extern fields. */
-static
-void
-btr_cur_unmark_extern_fields(
-/*=========================*/
- rec_t* rec, /* in: record in a clustered index */
- mtr_t* mtr, /* in: mtr */
- const ulint* offsets);/* in: array returned by rec_get_offsets() */
-/***********************************************************************
-Adds path information to the cursor for the current page, for which
-the binary search has been performed. */
-static
-void
-btr_cur_add_path_info(
-/*==================*/
- btr_cur_t* cursor, /* in: cursor positioned on a page */
- ulint height, /* in: height of the page in tree;
- 0 means leaf node */
- ulint root_height); /* in: root node height in tree */
-/***************************************************************
-Frees the externally stored fields for a record, if the field is mentioned
-in the update vector. */
-static
-void
-btr_rec_free_updated_extern_fields(
-/*===============================*/
- dict_index_t* index, /* in: index of rec; the index tree MUST be
- X-latched */
- rec_t* rec, /* in: record */
- const ulint* offsets,/* in: rec_get_offsets(rec, index) */
- upd_t* update, /* in: update vector */
- ibool do_not_free_inherited,/* in: TRUE if called in a
- rollback and we do not want to free
- inherited fields */
- mtr_t* mtr); /* in: mini-transaction handle which contains
- an X-latch to record page and to the tree */
-/***************************************************************
-Gets the externally stored size of a record, in units of a database page. */
-static
-ulint
-btr_rec_get_externally_stored_len(
-/*==============================*/
- /* out: externally stored part,
- in units of a database page */
- rec_t* rec, /* in: record */
- const ulint* offsets);/* in: array returned by rec_get_offsets() */
-
-/*==================== B-TREE SEARCH =========================*/
-
-/************************************************************************
-Latches the leaf page or pages requested. */
-static
-void
-btr_cur_latch_leaves(
-/*=================*/
- page_t* page, /* in: leaf page where the search
- converged */
- ulint space, /* in: space id */
- ulint page_no, /* in: page number of the leaf */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
- btr_cur_t* cursor, /* in: cursor */
- mtr_t* mtr) /* in: mtr */
-{
- ulint left_page_no;
- ulint right_page_no;
- page_t* get_page;
-
- ut_ad(page && mtr);
-
- if (latch_mode == BTR_SEARCH_LEAF) {
-
- get_page = btr_page_get(space, page_no, RW_S_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush = TRUE;
-
- } else if (latch_mode == BTR_MODIFY_LEAF) {
-
- get_page = btr_page_get(space, page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush = TRUE;
-
- } else if (latch_mode == BTR_MODIFY_TREE) {
-
- /* x-latch also brothers from left to right */
- left_page_no = btr_page_get_prev(page, mtr);
-
- if (left_page_no != FIL_NULL) {
- get_page = btr_page_get(space, left_page_no,
- RW_X_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush =
- TRUE;
- }
-
- get_page = btr_page_get(space, page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush = TRUE;
-
- right_page_no = btr_page_get_next(page, mtr);
-
- if (right_page_no != FIL_NULL) {
- get_page = btr_page_get(space, right_page_no,
- RW_X_LATCH, mtr);
- buf_block_align(get_page)->check_index_page_at_flush =
- TRUE;
- }
-
- } else if (latch_mode == BTR_SEARCH_PREV) {
-
- /* s-latch also left brother */
- left_page_no = btr_page_get_prev(page, mtr);
-
- if (left_page_no != FIL_NULL) {
- cursor->left_page = btr_page_get(space, left_page_no,
- RW_S_LATCH, mtr);
- ut_a(page_is_comp(cursor->left_page) ==
- page_is_comp(page));
- buf_block_align(
- cursor->left_page)->check_index_page_at_flush = TRUE;
- }
-
- get_page = btr_page_get(space, page_no, RW_S_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush = TRUE;
-
- } else if (latch_mode == BTR_MODIFY_PREV) {
-
- /* x-latch also left brother */
- left_page_no = btr_page_get_prev(page, mtr);
-
- if (left_page_no != FIL_NULL) {
- cursor->left_page = btr_page_get(space, left_page_no,
- RW_X_LATCH, mtr);
- ut_a(page_is_comp(cursor->left_page) ==
- page_is_comp(page));
- buf_block_align(
- cursor->left_page)->check_index_page_at_flush = TRUE;
- }
-
- get_page = btr_page_get(space, page_no, RW_X_LATCH, mtr);
- ut_a(page_is_comp(get_page) == page_is_comp(page));
- buf_block_align(get_page)->check_index_page_at_flush = TRUE;
- } else {
- ut_error;
- }
-}
-
-/************************************************************************
-Searches an index tree and positions a tree cursor on a given level.
-NOTE: n_fields_cmp in tuple must be set so that it cannot be compared
-to node pointer page number fields on the upper levels of the tree!
-Note that if mode is PAGE_CUR_LE, which is used in inserts, then
-cursor->up_match and cursor->low_match both will have sensible values.
-If mode is PAGE_CUR_GE, then up_match will a have a sensible value. */
-
-void
-btr_cur_search_to_nth_level(
-/*========================*/
- dict_index_t* index, /* in: index */
- ulint level, /* in: the tree level of search */
- dtuple_t* tuple, /* in: data tuple; NOTE: n_fields_cmp in
- tuple must be set so that it cannot get
- compared to the node ptr page number field! */
- ulint mode, /* in: PAGE_CUR_L, ...;
- Inserts should always be made using
- PAGE_CUR_LE to search the position! */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF, ..., ORed with
- BTR_INSERT and BTR_ESTIMATE;
- cursor->left_page is used to store a pointer
- to the left neighbor page, in the cases
- BTR_SEARCH_PREV and BTR_MODIFY_PREV;
- NOTE that if has_search_latch
- is != 0, we maybe do not have a latch set
- on the cursor page, we assume
- the caller uses his search latch
- to protect the record! */
- btr_cur_t* cursor, /* in/out: tree cursor; the cursor page is
- s- or x-latched, but see also above! */
- ulint has_search_latch,/* in: info on the latch mode the
- caller currently has on btr_search_latch:
- RW_S_LATCH, or 0 */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- page_cur_t* page_cursor;
- page_t* page;
- page_t* guess;
- rec_t* node_ptr;
- ulint page_no;
- ulint space;
- ulint up_match;
- ulint up_bytes;
- ulint low_match;
- ulint low_bytes;
- ulint height;
- ulint savepoint;
- ulint rw_latch;
- ulint page_mode;
- ulint insert_planned;
- ulint buf_mode;
- ulint estimate;
- ulint ignore_sec_unique;
- ulint root_height = 0; /* remove warning */
-#ifdef BTR_CUR_ADAPT
- btr_search_t* info;
-#endif
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
- /* Currently, PAGE_CUR_LE is the only search mode used for searches
- ending to upper levels */
-
- ut_ad(level == 0 || mode == PAGE_CUR_LE);
- ut_ad(dict_tree_check_search_tuple(index->tree, tuple));
- ut_ad(!(index->type & DICT_IBUF) || ibuf_inside());
- ut_ad(dtuple_check_typed(tuple));
-
-#ifdef UNIV_DEBUG
- cursor->up_match = ULINT_UNDEFINED;
- cursor->low_match = ULINT_UNDEFINED;
-#endif
- insert_planned = latch_mode & BTR_INSERT;
- estimate = latch_mode & BTR_ESTIMATE;
- ignore_sec_unique = latch_mode & BTR_IGNORE_SEC_UNIQUE;
- latch_mode = latch_mode & ~(BTR_INSERT | BTR_ESTIMATE
- | BTR_IGNORE_SEC_UNIQUE);
-
- ut_ad(!insert_planned || (mode == PAGE_CUR_LE));
-
- cursor->flag = BTR_CUR_BINARY;
- cursor->index = index;
-
-#ifndef BTR_CUR_ADAPT
- guess = NULL;
-#else
- info = btr_search_get_info(index);
-
- guess = info->root_guess;
-
-#ifdef BTR_CUR_HASH_ADAPT
-
-#ifdef UNIV_SEARCH_PERF_STAT
- info->n_searches++;
-#endif
- if (btr_search_latch.writer == RW_LOCK_NOT_LOCKED
- && latch_mode <= BTR_MODIFY_LEAF && info->last_hash_succ
- && !estimate
- && mode != PAGE_CUR_LE_OR_EXTENDS
- && srv_use_adaptive_hash_indexes
- && btr_search_guess_on_hash(index, info, tuple, mode,
- latch_mode, cursor,
- has_search_latch, mtr)) {
-
- /* Search using the hash index succeeded */
-
- ut_ad(cursor->up_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_GE);
- ut_ad(cursor->up_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_LE);
- ut_ad(cursor->low_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_LE);
- btr_cur_n_sea++;
-
- return;
- }
-#endif
-#endif
- btr_cur_n_non_sea++;
-
- /* If the hash search did not succeed, do binary search down the
- tree */
-
- if (has_search_latch) {
- /* Release possible search latch to obey latching order */
- rw_lock_s_unlock(&btr_search_latch);
- }
-
- /* Store the position of the tree latch we push to mtr so that we
- know how to release it when we have latched leaf node(s) */
-
- savepoint = mtr_set_savepoint(mtr);
-
- tree = index->tree;
-
- if (latch_mode == BTR_MODIFY_TREE) {
- mtr_x_lock(dict_tree_get_lock(tree), mtr);
-
- } else if (latch_mode == BTR_CONT_MODIFY_TREE) {
- /* Do nothing */
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- } else {
- mtr_s_lock(dict_tree_get_lock(tree), mtr);
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
-
- space = dict_tree_get_space(tree);
- page_no = dict_tree_get_page(tree);
-
- up_match = 0;
- up_bytes = 0;
- low_match = 0;
- low_bytes = 0;
-
- height = ULINT_UNDEFINED;
- rw_latch = RW_NO_LATCH;
- buf_mode = BUF_GET;
-
- /* We use these modified search modes on non-leaf levels of the
- B-tree. These let us end up in the right B-tree leaf. In that leaf
- we use the original search mode. */
-
- switch (mode) {
- case PAGE_CUR_GE:
- page_mode = PAGE_CUR_L;
- break;
- case PAGE_CUR_G:
- page_mode = PAGE_CUR_LE;
- break;
- default:
- ut_ad(mode == PAGE_CUR_L
- || mode == PAGE_CUR_LE
- || mode == PAGE_CUR_LE_OR_EXTENDS);
- page_mode = mode;
- break;
- }
-
- /* Loop and search until we arrive at the desired level */
-
- for (;;) {
- if ((height == 0) && (latch_mode <= BTR_MODIFY_LEAF)) {
-
- rw_latch = latch_mode;
-
- if (insert_planned && ibuf_should_try(index,
- ignore_sec_unique)) {
-
- /* Try insert to the insert buffer if the
- page is not in the buffer pool */
-
- buf_mode = BUF_GET_IF_IN_POOL;
- }
- }
-retry_page_get:
- page = buf_page_get_gen(space, page_no, rw_latch, guess,
- buf_mode,
- __FILE__, __LINE__,
- mtr);
- if (page == NULL) {
- /* This must be a search to perform an insert;
- try insert to the insert buffer */
-
- ut_ad(buf_mode == BUF_GET_IF_IN_POOL);
- ut_ad(insert_planned);
- ut_ad(cursor->thr);
-
- if (ibuf_should_try(index, ignore_sec_unique) &&
- ibuf_insert(tuple, index, space, page_no,
- cursor->thr)) {
- /* Insertion to the insert buffer succeeded */
- cursor->flag = BTR_CUR_INSERT_TO_IBUF;
- if (heap) {
- mem_heap_free(heap);
- }
- return;
- }
-
- /* Insert to the insert buffer did not succeed:
- retry page get */
-
- buf_mode = BUF_GET;
-
- goto retry_page_get;
- }
-
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-
-#ifdef UNIV_SYNC_DEBUG
- if (rw_latch != RW_NO_LATCH) {
- buf_page_dbg_add_level(page, SYNC_TREE_NODE);
- }
-#endif
- ut_ad(0 == ut_dulint_cmp(tree->id,
- btr_page_get_index_id(page)));
-
- if (height == ULINT_UNDEFINED) {
- /* We are in the root node */
-
- height = btr_page_get_level(page, mtr);
- root_height = height;
- cursor->tree_height = root_height + 1;
-#ifdef BTR_CUR_ADAPT
- if (page != guess) {
- info->root_guess = page;
- }
-#endif
- }
-
- if (height == 0) {
- if (rw_latch == RW_NO_LATCH) {
-
- btr_cur_latch_leaves(page, space,
- page_no, latch_mode, cursor,
- mtr);
- }
-
- if ((latch_mode != BTR_MODIFY_TREE)
- && (latch_mode != BTR_CONT_MODIFY_TREE)) {
-
- /* Release the tree s-latch */
-
- mtr_release_s_latch_at_savepoint(
- mtr, savepoint,
- dict_tree_get_lock(tree));
- }
-
- page_mode = mode;
- }
-
- page_cur_search_with_match(page, index, tuple, page_mode,
- &up_match, &up_bytes,
- &low_match, &low_bytes, page_cursor);
- if (estimate) {
- btr_cur_add_path_info(cursor, height, root_height);
- }
-
- /* If this is the desired level, leave the loop */
-
- ut_ad(height
- == btr_page_get_level(page_cur_get_page(page_cursor), mtr));
-
- if (level == height) {
-
- if (level > 0) {
- /* x-latch the page */
- ut_a(page_is_comp(btr_page_get(space,
- page_no, RW_X_LATCH, mtr))
- == index->table->comp);
- }
-
- break;
- }
-
- ut_ad(height > 0);
-
- height--;
- guess = NULL;
-
- node_ptr = page_cur_get_rec(page_cursor);
- offsets = rec_get_offsets(node_ptr, cursor->index, offsets,
- ULINT_UNDEFINED, &heap);
- /* Go to the child node */
- page_no = btr_node_ptr_get_child_page_no(node_ptr, offsets);
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
-
- if (level == 0) {
- cursor->low_match = low_match;
- cursor->low_bytes = low_bytes;
- cursor->up_match = up_match;
- cursor->up_bytes = up_bytes;
-
-#ifdef BTR_CUR_ADAPT
- if (srv_use_adaptive_hash_indexes) {
-
- btr_search_info_update(index, cursor);
- }
-#endif
- ut_ad(cursor->up_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_GE);
- ut_ad(cursor->up_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_LE);
- ut_ad(cursor->low_match != ULINT_UNDEFINED
- || mode != PAGE_CUR_LE);
- }
-
- if (has_search_latch) {
-
- rw_lock_s_lock(&btr_search_latch);
- }
-}
-
-/*********************************************************************
-Opens a cursor at either end of an index. */
-
-void
-btr_cur_open_at_index_side(
-/*=======================*/
- ibool from_left, /* in: TRUE if open to the low end,
- FALSE if to the high end */
- dict_index_t* index, /* in: index */
- ulint latch_mode, /* in: latch mode */
- btr_cur_t* cursor, /* in: cursor */
- mtr_t* mtr) /* in: mtr */
-{
- page_cur_t* page_cursor;
- dict_tree_t* tree;
- page_t* page;
- ulint page_no;
- ulint space;
- ulint height;
- ulint root_height = 0; /* remove warning */
- rec_t* node_ptr;
- ulint estimate;
- ulint savepoint;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- estimate = latch_mode & BTR_ESTIMATE;
- latch_mode = latch_mode & ~BTR_ESTIMATE;
-
- tree = index->tree;
-
- /* Store the position of the tree latch we push to mtr so that we
- know how to release it when we have latched the leaf node */
-
- savepoint = mtr_set_savepoint(mtr);
-
- if (latch_mode == BTR_MODIFY_TREE) {
- mtr_x_lock(dict_tree_get_lock(tree), mtr);
- } else {
- mtr_s_lock(dict_tree_get_lock(tree), mtr);
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
- cursor->index = index;
-
- space = dict_tree_get_space(tree);
- page_no = dict_tree_get_page(tree);
-
- height = ULINT_UNDEFINED;
-
- for (;;) {
- page = buf_page_get_gen(space, page_no, RW_NO_LATCH, NULL,
- BUF_GET,
- __FILE__, __LINE__,
- mtr);
- ut_ad(0 == ut_dulint_cmp(tree->id,
- btr_page_get_index_id(page)));
-
- buf_block_align(page)->check_index_page_at_flush = TRUE;
-
- if (height == ULINT_UNDEFINED) {
- /* We are in the root node */
-
- height = btr_page_get_level(page, mtr);
- root_height = height;
- }
-
- if (height == 0) {
- btr_cur_latch_leaves(page, space, page_no,
- latch_mode, cursor, mtr);
-
- /* In versions <= 3.23.52 we had forgotten to
- release the tree latch here. If in an index scan
- we had to scan far to find a record visible to the
- current transaction, that could starve others
- waiting for the tree latch. */
-
- if ((latch_mode != BTR_MODIFY_TREE)
- && (latch_mode != BTR_CONT_MODIFY_TREE)) {
-
- /* Release the tree s-latch */
-
- mtr_release_s_latch_at_savepoint(
- mtr, savepoint,
- dict_tree_get_lock(tree));
- }
- }
-
- if (from_left) {
- page_cur_set_before_first(page, page_cursor);
- } else {
- page_cur_set_after_last(page, page_cursor);
- }
-
- if (height == 0) {
- if (estimate) {
- btr_cur_add_path_info(cursor, height,
- root_height);
- }
-
- break;
- }
-
- ut_ad(height > 0);
-
- if (from_left) {
- page_cur_move_to_next(page_cursor);
- } else {
- page_cur_move_to_prev(page_cursor);
- }
-
- if (estimate) {
- btr_cur_add_path_info(cursor, height, root_height);
- }
-
- height--;
-
- node_ptr = page_cur_get_rec(page_cursor);
- offsets = rec_get_offsets(node_ptr, cursor->index, offsets,
- ULINT_UNDEFINED, &heap);
- /* Go to the child node */
- page_no = btr_node_ptr_get_child_page_no(node_ptr, offsets);
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
-}
-
-/**************************************************************************
-Positions a cursor at a randomly chosen position within a B-tree. */
-
-void
-btr_cur_open_at_rnd_pos(
-/*====================*/
- dict_index_t* index, /* in: index */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
- btr_cur_t* cursor, /* in/out: B-tree cursor */
- mtr_t* mtr) /* in: mtr */
-{
- page_cur_t* page_cursor;
- dict_tree_t* tree;
- page_t* page;
- ulint page_no;
- ulint space;
- ulint height;
- rec_t* node_ptr;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- tree = index->tree;
-
- if (latch_mode == BTR_MODIFY_TREE) {
- mtr_x_lock(dict_tree_get_lock(tree), mtr);
- } else {
- mtr_s_lock(dict_tree_get_lock(tree), mtr);
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
- cursor->index = index;
-
- space = dict_tree_get_space(tree);
- page_no = dict_tree_get_page(tree);
-
- height = ULINT_UNDEFINED;
-
- for (;;) {
- page = buf_page_get_gen(space, page_no, RW_NO_LATCH, NULL,
- BUF_GET,
- __FILE__, __LINE__,
- mtr);
- ut_ad(0 == ut_dulint_cmp(tree->id,
- btr_page_get_index_id(page)));
-
- if (height == ULINT_UNDEFINED) {
- /* We are in the root node */
-
- height = btr_page_get_level(page, mtr);
- }
-
- if (height == 0) {
- btr_cur_latch_leaves(page, space, page_no,
- latch_mode, cursor, mtr);
- }
-
- page_cur_open_on_rnd_user_rec(page, page_cursor);
-
- if (height == 0) {
-
- break;
- }
-
- ut_ad(height > 0);
-
- height--;
-
- node_ptr = page_cur_get_rec(page_cursor);
- offsets = rec_get_offsets(node_ptr, cursor->index, offsets,
- ULINT_UNDEFINED, &heap);
- /* Go to the child node */
- page_no = btr_node_ptr_get_child_page_no(node_ptr, offsets);
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
-}
-
-/*==================== B-TREE INSERT =========================*/
-
-/*****************************************************************
-Inserts a record if there is enough space, or if enough space can
-be freed by reorganizing. Differs from _optimistic_insert because
-no heuristics is applied to whether it pays to use CPU time for
-reorganizing the page or not. */
-static
-rec_t*
-btr_cur_insert_if_possible(
-/*=======================*/
- /* out: pointer to inserted record if succeed,
- else NULL */
- btr_cur_t* cursor, /* in: cursor on page after which to insert;
- cursor stays valid */
- dtuple_t* tuple, /* in: tuple to insert; the size info need not
- have been stored to tuple */
- ibool* reorg, /* out: TRUE if reorganization occurred */
- mtr_t* mtr) /* in: mtr */
-{
- page_cur_t* page_cursor;
- page_t* page;
- rec_t* rec;
-
- ut_ad(dtuple_check_typed(tuple));
-
- *reorg = FALSE;
-
- page = btr_cur_get_page(cursor);
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- page_cursor = btr_cur_get_page_cur(cursor);
-
- /* Now, try the insert */
- rec = page_cur_tuple_insert(page_cursor, tuple, cursor->index, mtr);
-
- if (!rec) {
- /* If record did not fit, reorganize */
-
- btr_page_reorganize(page, cursor->index, mtr);
-
- *reorg = TRUE;
-
- page_cur_search(page, cursor->index, tuple,
- PAGE_CUR_LE, page_cursor);
-
- rec = page_cur_tuple_insert(page_cursor, tuple,
- cursor->index, mtr);
- }
-
- return(rec);
-}
-
-/*****************************************************************
-For an insert, checks the locks and does the undo logging if desired. */
-UNIV_INLINE
-ulint
-btr_cur_ins_lock_and_undo(
-/*======================*/
- /* out: DB_SUCCESS, DB_WAIT_LOCK,
- DB_FAIL, or error number */
- ulint flags, /* in: undo logging and locking flags: if
- not zero, the parameters index and thr
- should be specified */
- btr_cur_t* cursor, /* in: cursor on page after which to insert */
- dtuple_t* entry, /* in: entry to insert */
- que_thr_t* thr, /* in: query thread or NULL */
- ibool* inherit)/* out: TRUE if the inserted new record maybe
- should inherit LOCK_GAP type locks from the
- successor record */
-{
- dict_index_t* index;
- ulint err;
- rec_t* rec;
- dulint roll_ptr;
-
- /* Check if we have to wait for a lock: enqueue an explicit lock
- request if yes */
-
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
-
- err = lock_rec_insert_check_and_lock(flags, rec, index, thr, inherit);
-
- if (err != DB_SUCCESS) {
-
- return(err);
- }
-
- if ((index->type & DICT_CLUSTERED) && !(index->type & DICT_IBUF)) {
-
- err = trx_undo_report_row_operation(flags, TRX_UNDO_INSERT_OP,
- thr, index, entry, NULL, 0, NULL,
- &roll_ptr);
- if (err != DB_SUCCESS) {
-
- return(err);
- }
-
- /* Now we can fill in the roll ptr field in entry */
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
-
- row_upd_index_entry_sys_field(entry, index,
- DATA_ROLL_PTR, roll_ptr);
- }
- }
-
- return(DB_SUCCESS);
-}
-
-/*****************************************************************
-Report information about a transaction. */
-static
-void
-btr_cur_trx_report(
-/*===============*/
- trx_t* trx, /* in: transaction */
- const dict_index_t* index, /* in: index */
- const char* op) /* in: operation */
-{
- fprintf(stderr, "Trx with id %lu %lu going to ",
- ut_dulint_get_high(trx->id),
- ut_dulint_get_low(trx->id));
- fputs(op, stderr);
- dict_index_name_print(stderr, trx, index);
- putc('\n', stderr);
-}
-
-/*****************************************************************
-Tries to perform an insert to a page in an index tree, next to cursor.
-It is assumed that mtr holds an x-latch on the page. The operation does
-not succeed if there is too little space on the page. If there is just
-one record on the page, the insert will always succeed; this is to
-prevent trying to split a page with just one record. */
-
-ulint
-btr_cur_optimistic_insert(
-/*======================*/
- /* out: DB_SUCCESS, DB_WAIT_LOCK,
- DB_FAIL, or error number */
- ulint flags, /* in: undo logging and locking flags: if not
- zero, the parameters index and thr should be
- specified */
- btr_cur_t* cursor, /* in: cursor on page after which to insert;
- cursor stays valid */
- dtuple_t* entry, /* in: entry to insert */
- rec_t** rec, /* out: pointer to inserted record if
- succeed */
- big_rec_t** big_rec,/* out: big rec vector whose fields have to
- be stored externally by the caller, or
- NULL */
- que_thr_t* thr, /* in: query thread or NULL */
- mtr_t* mtr) /* in: mtr */
-{
- big_rec_t* big_rec_vec = NULL;
- dict_index_t* index;
- page_cur_t* page_cursor;
- page_t* page;
- ulint max_size;
- rec_t* dummy_rec;
- ulint level;
- ibool reorg;
- ibool inherit;
- ulint rec_size;
- ulint type;
- ulint err;
-
- *big_rec = NULL;
-
- page = btr_cur_get_page(cursor);
- index = cursor->index;
-
- if (!dtuple_check_typed_no_assert(entry)) {
- fputs("InnoDB: Error in a tuple to insert into ", stderr);
- dict_index_name_print(stderr, thr_get_trx(thr), index);
- }
-
- if (btr_cur_print_record_ops && thr) {
- btr_cur_trx_report(thr_get_trx(thr), index, "insert into ");
- dtuple_print(stderr, entry);
- }
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- max_size = page_get_max_insert_size_after_reorganize(page, 1);
- level = btr_page_get_level(page, mtr);
-
-calculate_sizes_again:
- /* Calculate the record size when entry is converted to a record */
- rec_size = rec_get_converted_size(index, entry);
-
- if (rec_size >=
- ut_min(page_get_free_space_of_empty(index->table->comp) / 2,
- REC_MAX_DATA_SIZE)) {
-
- /* The record is so big that we have to store some fields
- externally on separate database pages */
-
- big_rec_vec = dtuple_convert_big_rec(index, entry, NULL, 0);
-
- if (big_rec_vec == NULL) {
-
- return(DB_TOO_BIG_RECORD);
- }
-
- goto calculate_sizes_again;
- }
-
- /* If there have been many consecutive inserts, and we are on the leaf
- level, check if we have to split the page to reserve enough free space
- for future updates of records. */
-
- type = index->type;
-
- if ((type & DICT_CLUSTERED)
- && (dict_tree_get_space_reserve(index->tree) + rec_size > max_size)
- && (page_get_n_recs(page) >= 2)
- && (0 == level)
- && (btr_page_get_split_rec_to_right(cursor, &dummy_rec)
- || btr_page_get_split_rec_to_left(cursor, &dummy_rec))) {
-
- if (big_rec_vec) {
- dtuple_convert_back_big_rec(index, entry, big_rec_vec);
- }
-
- return(DB_FAIL);
- }
-
- if (!(((max_size >= rec_size)
- && (max_size >= BTR_CUR_PAGE_REORGANIZE_LIMIT))
- || (page_get_max_insert_size(page, 1) >= rec_size)
- || (page_get_n_recs(page) <= 1))) {
-
- if (big_rec_vec) {
- dtuple_convert_back_big_rec(index, entry, big_rec_vec);
- }
- return(DB_FAIL);
- }
-
- /* Check locks and write to the undo log, if specified */
- err = btr_cur_ins_lock_and_undo(flags, cursor, entry, thr, &inherit);
-
- if (err != DB_SUCCESS) {
-
- if (big_rec_vec) {
- dtuple_convert_back_big_rec(index, entry, big_rec_vec);
- }
- return(err);
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
-
- reorg = FALSE;
-
- /* Now, try the insert */
-
- *rec = page_cur_insert_rec_low(page_cursor, entry, index,
- NULL, NULL, mtr);
- if (!(*rec)) {
- /* If the record did not fit, reorganize */
- btr_page_reorganize(page, index, mtr);
-
- ut_ad(page_get_max_insert_size(page, 1) == max_size);
-
- reorg = TRUE;
-
- page_cur_search(page, index, entry, PAGE_CUR_LE, page_cursor);
-
- *rec = page_cur_tuple_insert(page_cursor, entry, index, mtr);
-
- if (!*rec) {
- fputs("InnoDB: Error: cannot insert tuple ", stderr);
- dtuple_print(stderr, entry);
- fputs(" into ", stderr);
- dict_index_name_print(stderr, thr_get_trx(thr), index);
- fprintf(stderr, "\nInnoDB: max insert size %lu\n",
- (ulong) max_size);
- ut_error;
- }
- }
-
-#ifdef BTR_CUR_HASH_ADAPT
- if (!reorg && (0 == level) && (cursor->flag == BTR_CUR_HASH)) {
- btr_search_update_hash_node_on_insert(cursor);
- } else {
- btr_search_update_hash_on_insert(cursor);
- }
-#endif
-
- if (!(flags & BTR_NO_LOCKING_FLAG) && inherit) {
-
- lock_update_insert(*rec);
- }
-
-/* fprintf(stderr, "Insert into page %lu, max ins size %lu,"
- " rec %lu ind type %lu\n",
- buf_frame_get_page_no(page), max_size,
- rec_size + PAGE_DIR_SLOT_SIZE, type);
-*/
- if (!(type & DICT_CLUSTERED)) {
- /* We have added a record to page: update its free bits */
- ibuf_update_free_bits_if_full(cursor->index, page, max_size,
- rec_size + PAGE_DIR_SLOT_SIZE);
- }
-
- *big_rec = big_rec_vec;
-
- return(DB_SUCCESS);
-}
-
-/*****************************************************************
-Performs an insert on a page of an index tree. It is assumed that mtr
-holds an x-latch on the tree and on the cursor page. If the insert is
-made on the leaf level, to avoid deadlocks, mtr must also own x-latches
-to brothers of page, if those brothers exist. */
-
-ulint
-btr_cur_pessimistic_insert(
-/*=======================*/
- /* out: DB_SUCCESS or error number */
- ulint flags, /* in: undo logging and locking flags: if not
- zero, the parameter thr should be
- specified; if no undo logging is specified,
- then the caller must have reserved enough
- free extents in the file space so that the
- insertion will certainly succeed */
- btr_cur_t* cursor, /* in: cursor after which to insert;
- cursor stays valid */
- dtuple_t* entry, /* in: entry to insert */
- rec_t** rec, /* out: pointer to inserted record if
- succeed */
- big_rec_t** big_rec,/* out: big rec vector whose fields have to
- be stored externally by the caller, or
- NULL */
- que_thr_t* thr, /* in: query thread or NULL */
- mtr_t* mtr) /* in: mtr */
-{
- dict_index_t* index = cursor->index;
- big_rec_t* big_rec_vec = NULL;
- page_t* page;
- ulint err;
- ibool dummy_inh;
- ibool success;
- ulint n_extents = 0;
- ulint n_reserved;
-
- ut_ad(dtuple_check_typed(entry));
-
- *big_rec = NULL;
-
- page = btr_cur_get_page(cursor);
-
- ut_ad(mtr_memo_contains(mtr,
- dict_tree_get_lock(btr_cur_get_tree(cursor)),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
-
- /* Try first an optimistic insert; reset the cursor flag: we do not
- assume anything of how it was positioned */
-
- cursor->flag = BTR_CUR_BINARY;
-
- err = btr_cur_optimistic_insert(flags, cursor, entry, rec, big_rec,
- thr, mtr);
- if (err != DB_FAIL) {
-
- return(err);
- }
-
- /* Retry with a pessimistic insert. Check locks and write to undo log,
- if specified */
-
- err = btr_cur_ins_lock_and_undo(flags, cursor, entry, thr, &dummy_inh);
-
- if (err != DB_SUCCESS) {
-
- return(err);
- }
-
- if (!(flags & BTR_NO_UNDO_LOG_FLAG)) {
- /* First reserve enough free space for the file segments
- of the index tree, so that the insert will not fail because
- of lack of space */
-
- n_extents = cursor->tree_height / 16 + 3;
-
- success = fsp_reserve_free_extents(&n_reserved, index->space,
- n_extents, FSP_NORMAL, mtr);
- if (!success) {
- err = DB_OUT_OF_FILE_SPACE;
-
- return(err);
- }
- }
-
- if (rec_get_converted_size(index, entry) >=
- ut_min(page_get_free_space_of_empty(index->table->comp) / 2,
- REC_MAX_DATA_SIZE)) {
-
- /* The record is so big that we have to store some fields
- externally on separate database pages */
-
- big_rec_vec = dtuple_convert_big_rec(index, entry, NULL, 0);
-
- if (big_rec_vec == NULL) {
-
- if (n_extents > 0) {
- fil_space_release_free_extents(index->space,
- n_reserved);
- }
- return(DB_TOO_BIG_RECORD);
- }
- }
-
- if (dict_tree_get_page(index->tree)
- == buf_frame_get_page_no(page)) {
-
- /* The page is the root page */
- *rec = btr_root_raise_and_insert(cursor, entry, mtr);
- } else {
- *rec = btr_page_split_and_insert(cursor, entry, mtr);
- }
-
- btr_cur_position(index, page_rec_get_prev(*rec), cursor);
-
-#ifdef BTR_CUR_ADAPT
- btr_search_update_hash_on_insert(cursor);
-#endif
- if (!(flags & BTR_NO_LOCKING_FLAG)) {
-
- lock_update_insert(*rec);
- }
-
- err = DB_SUCCESS;
-
- if (n_extents > 0) {
- fil_space_release_free_extents(index->space, n_reserved);
- }
-
- *big_rec = big_rec_vec;
-
- return(err);
-}
-
-/*==================== B-TREE UPDATE =========================*/
-
-/*****************************************************************
-For an update, checks the locks and does the undo logging. */
-UNIV_INLINE
-ulint
-btr_cur_upd_lock_and_undo(
-/*======================*/
- /* out: DB_SUCCESS, DB_WAIT_LOCK, or error
- number */
- ulint flags, /* in: undo logging and locking flags */
- btr_cur_t* cursor, /* in: cursor on record to update */
- upd_t* update, /* in: update vector */
- ulint cmpl_info,/* in: compiler info on secondary index
- updates */
- que_thr_t* thr, /* in: query thread */
- dulint* roll_ptr)/* out: roll pointer */
-{
- dict_index_t* index;
- rec_t* rec;
- ulint err;
-
- ut_ad(cursor && update && thr && roll_ptr);
-
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
-
- if (!(index->type & DICT_CLUSTERED)) {
- /* We do undo logging only when we update a clustered index
- record */
- return(lock_sec_rec_modify_check_and_lock(flags, rec, index,
- thr));
- }
-
- /* Check if we have to wait for a lock: enqueue an explicit lock
- request if yes */
-
- err = DB_SUCCESS;
-
- if (!(flags & BTR_NO_LOCKING_FLAG)) {
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- err = lock_clust_rec_modify_check_and_lock(flags, rec, index,
- rec_get_offsets(rec, index, offsets_,
- ULINT_UNDEFINED, &heap), thr);
- if (heap) {
- mem_heap_free(heap);
- }
- if (err != DB_SUCCESS) {
-
- return(err);
- }
- }
-
- /* Append the info about the update in the undo log */
-
- err = trx_undo_report_row_operation(flags, TRX_UNDO_MODIFY_OP, thr,
- index, NULL, update,
- cmpl_info, rec, roll_ptr);
- return(err);
-}
-
-/***************************************************************
-Writes a redo log record of updating a record in-place. */
-UNIV_INLINE
-void
-btr_cur_update_in_place_log(
-/*========================*/
- ulint flags, /* in: flags */
- rec_t* rec, /* in: record */
- dict_index_t* index, /* in: index where cursor positioned */
- upd_t* update, /* in: update vector */
- trx_t* trx, /* in: transaction */
- dulint roll_ptr, /* in: roll ptr */
- mtr_t* mtr) /* in: mtr */
-{
- byte* log_ptr;
- ut_ad(flags < 256);
-
- log_ptr = mlog_open_and_write_index(mtr, rec, index, index->table->comp
- ? MLOG_COMP_REC_UPDATE_IN_PLACE
- : MLOG_REC_UPDATE_IN_PLACE,
- 1 + DATA_ROLL_PTR_LEN + 14 + 2 + MLOG_BUF_MARGIN);
-
- if (!log_ptr) {
- /* Logging in mtr is switched off during crash recovery */
- return;
- }
-
- /* The code below assumes index is a clustered index: change index to
- the clustered index if we are updating a secondary index record (or we
- could as well skip writing the sys col values to the log in this case
- because they are not needed for a secondary index record update) */
-
- index = dict_table_get_first_index(index->table);
-
- mach_write_to_1(log_ptr, flags);
- log_ptr++;
-
- log_ptr = row_upd_write_sys_vals_to_log(index, trx, roll_ptr, log_ptr,
- mtr);
- mach_write_to_2(log_ptr, rec - buf_frame_align(rec));
- log_ptr += 2;
-
- row_upd_index_write_log(update, log_ptr, mtr);
-}
-
-/***************************************************************
-Parses a redo log record of updating a record in-place. */
-
-byte*
-btr_cur_parse_update_in_place(
-/*==========================*/
- /* out: end of log record or NULL */
- byte* ptr, /* in: buffer */
- byte* end_ptr,/* in: buffer end */
- page_t* page, /* in: page or NULL */
- dict_index_t* index) /* in: index corresponding to page */
-{
- ulint flags;
- rec_t* rec;
- upd_t* update;
- ulint pos;
- dulint trx_id;
- dulint roll_ptr;
- ulint rec_offset;
- mem_heap_t* heap;
- ulint* offsets;
-
- if (end_ptr < ptr + 1) {
-
- return(NULL);
- }
-
- flags = mach_read_from_1(ptr);
- ptr++;
-
- ptr = row_upd_parse_sys_vals(ptr, end_ptr, &pos, &trx_id, &roll_ptr);
-
- if (ptr == NULL) {
-
- return(NULL);
- }
-
- if (end_ptr < ptr + 2) {
-
- return(NULL);
- }
-
- rec_offset = mach_read_from_2(ptr);
- ptr += 2;
-
- ut_a(rec_offset <= UNIV_PAGE_SIZE);
-
- heap = mem_heap_create(256);
-
- ptr = row_upd_index_parse(ptr, end_ptr, heap, &update);
-
- if (ptr == NULL) {
- mem_heap_free(heap);
-
- return(NULL);
- }
-
- if (!page) {
- mem_heap_free(heap);
-
- return(ptr);
- }
-
- rec = page + rec_offset;
-
- /* We do not need to reserve btr_search_latch, as the page is only
- being recovered, and there cannot be a hash index to it. */
-
- offsets = rec_get_offsets(rec, index, NULL, ULINT_UNDEFINED, &heap);
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- row_upd_rec_sys_fields_in_recovery(rec, offsets,
- pos, trx_id, roll_ptr);
- }
-
- row_upd_rec_in_place(rec, offsets, update);
-
- mem_heap_free(heap);
-
- return(ptr);
-}
-
-/*****************************************************************
-Updates a record when the update causes no size changes in its fields.
-We assume here that the ordering fields of the record do not change. */
-
-ulint
-btr_cur_update_in_place(
-/*====================*/
- /* out: DB_SUCCESS or error number */
- ulint flags, /* in: undo logging and locking flags */
- btr_cur_t* cursor, /* in: cursor on the record to update;
- cursor stays valid and positioned on the
- same record */
- upd_t* update, /* in: update vector */
- ulint cmpl_info,/* in: compiler info on secondary index
- updates */
- que_thr_t* thr, /* in: query thread */
- mtr_t* mtr) /* in: mtr */
-{
- dict_index_t* index;
- buf_block_t* block;
- ulint err;
- rec_t* rec;
- dulint roll_ptr = ut_dulint_zero;
- trx_t* trx;
- ibool was_delete_marked;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
- trx = thr_get_trx(thr);
- heap = mem_heap_create(100);
- offsets = rec_get_offsets(rec, index, offsets, ULINT_UNDEFINED, &heap);
-
- if (btr_cur_print_record_ops && thr) {
- btr_cur_trx_report(trx, index, "update ");
- rec_print_new(stderr, rec, offsets);
- }
-
- /* Do lock checking and undo logging */
- err = btr_cur_upd_lock_and_undo(flags, cursor, update, cmpl_info,
- thr, &roll_ptr);
- if (err != DB_SUCCESS) {
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(err);
- }
-
- block = buf_block_align(rec);
-
- if (block->is_hashed) {
- /* The function row_upd_changes_ord_field_binary works only
- if the update vector was built for a clustered index, we must
- NOT call it if index is secondary */
-
- if (!(index->type & DICT_CLUSTERED)
- || row_upd_changes_ord_field_binary(NULL, index, update)) {
-
- /* Remove possible hash index pointer to this record */
- btr_search_update_hash_on_delete(cursor);
- }
-
- rw_lock_x_lock(&btr_search_latch);
- }
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- row_upd_rec_sys_fields(rec, index, offsets, trx, roll_ptr);
- }
-
- /* FIXME: in a mixed tree, all records may not have enough ordering
- fields for btr search: */
-
- was_delete_marked = rec_get_deleted_flag(rec, index->table->comp);
-
- row_upd_rec_in_place(rec, offsets, update);
-
- if (block->is_hashed) {
- rw_lock_x_unlock(&btr_search_latch);
- }
-
- btr_cur_update_in_place_log(flags, rec, index, update, trx, roll_ptr,
- mtr);
- if (was_delete_marked && !rec_get_deleted_flag(rec, index->table->comp)) {
- /* The new updated record owns its possible externally
- stored fields */
-
- btr_cur_unmark_extern_fields(rec, mtr, offsets);
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(DB_SUCCESS);
-}
-
-/*****************************************************************
-Tries to update a record on a page in an index tree. It is assumed that mtr
-holds an x-latch on the page. The operation does not succeed if there is too
-little space on the page or if the update would result in too empty a page,
-so that tree compression is recommended. We assume here that the ordering
-fields of the record do not change. */
-
-ulint
-btr_cur_optimistic_update(
-/*======================*/
- /* out: DB_SUCCESS, or DB_OVERFLOW if the
- updated record does not fit, DB_UNDERFLOW
- if the page would become too empty */
- ulint flags, /* in: undo logging and locking flags */
- btr_cur_t* cursor, /* in: cursor on the record to update;
- cursor stays valid and positioned on the
- same record */
- upd_t* update, /* in: update vector; this must also
- contain trx id and roll ptr fields */
- ulint cmpl_info,/* in: compiler info on secondary index
- updates */
- que_thr_t* thr, /* in: query thread */
- mtr_t* mtr) /* in: mtr */
-{
- dict_index_t* index;
- page_cur_t* page_cursor;
- ulint err;
- page_t* page;
- rec_t* rec;
- ulint max_size;
- ulint new_rec_size;
- ulint old_rec_size;
- dtuple_t* new_entry;
- dulint roll_ptr;
- trx_t* trx;
- mem_heap_t* heap;
- ibool reorganized = FALSE;
- ulint i;
- ulint* offsets;
-
- page = btr_cur_get_page(cursor);
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
-
- heap = mem_heap_create(1024);
- offsets = rec_get_offsets(rec, index, NULL, ULINT_UNDEFINED, &heap);
-
- if (btr_cur_print_record_ops && thr) {
- btr_cur_trx_report(thr_get_trx(thr), index, "update ");
- rec_print_new(stderr, rec, offsets);
- }
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- if (!row_upd_changes_field_size_or_external(index, offsets, update)) {
-
- /* The simplest and the most common case: the update does not
- change the size of any field and none of the updated fields is
- externally stored in rec or update */
- mem_heap_free(heap);
- return(btr_cur_update_in_place(flags, cursor, update,
- cmpl_info, thr, mtr));
- }
-
- for (i = 0; i < upd_get_n_fields(update); i++) {
- if (upd_get_nth_field(update, i)->extern_storage) {
-
- /* Externally stored fields are treated in pessimistic
- update */
-
- mem_heap_free(heap);
- return(DB_OVERFLOW);
- }
- }
-
- if (rec_offs_any_extern(offsets)) {
- /* Externally stored fields are treated in pessimistic
- update */
-
- mem_heap_free(heap);
- return(DB_OVERFLOW);
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
-
- new_entry = row_rec_to_index_entry(ROW_COPY_DATA, index, rec, heap);
-
- row_upd_index_replace_new_col_vals_index_pos(new_entry, index, update,
- NULL);
- old_rec_size = rec_offs_size(offsets);
- new_rec_size = rec_get_converted_size(index, new_entry);
-
- if (new_rec_size >=
- page_get_free_space_of_empty(index->table->comp) / 2) {
-
- mem_heap_free(heap);
-
- return(DB_OVERFLOW);
- }
-
- max_size = old_rec_size
- + page_get_max_insert_size_after_reorganize(page, 1);
-
- if (page_get_data_size(page) - old_rec_size + new_rec_size
- < BTR_CUR_PAGE_COMPRESS_LIMIT) {
-
- /* The page would become too empty */
-
- mem_heap_free(heap);
-
- return(DB_UNDERFLOW);
- }
-
- if (!(((max_size >= BTR_CUR_PAGE_REORGANIZE_LIMIT)
- && (max_size >= new_rec_size))
- || (page_get_n_recs(page) <= 1))) {
-
- /* There was not enough space, or it did not pay to
- reorganize: for simplicity, we decide what to do assuming a
- reorganization is needed, though it might not be necessary */
-
- mem_heap_free(heap);
-
- return(DB_OVERFLOW);
- }
-
- /* Do lock checking and undo logging */
- err = btr_cur_upd_lock_and_undo(flags, cursor, update, cmpl_info, thr,
- &roll_ptr);
- if (err != DB_SUCCESS) {
-
- mem_heap_free(heap);
-
- return(err);
- }
-
- /* Ok, we may do the replacement. Store on the page infimum the
- explicit locks on rec, before deleting rec (see the comment in
- .._pessimistic_update). */
-
- lock_rec_store_on_page_infimum(rec);
-
- btr_search_update_hash_on_delete(cursor);
-
- page_cur_delete_rec(page_cursor, index, offsets, mtr);
-
- page_cur_move_to_prev(page_cursor);
-
- trx = thr_get_trx(thr);
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- row_upd_index_entry_sys_field(new_entry, index, DATA_ROLL_PTR,
- roll_ptr);
- row_upd_index_entry_sys_field(new_entry, index, DATA_TRX_ID,
- trx->id);
- }
-
- rec = btr_cur_insert_if_possible(cursor, new_entry, &reorganized, mtr);
-
- ut_a(rec); /* <- We calculated above the insert would fit */
-
- if (!rec_get_deleted_flag(rec, index->table->comp)) {
- /* The new inserted record owns its possible externally
- stored fields */
-
- offsets = rec_get_offsets(rec, index, offsets,
- ULINT_UNDEFINED, &heap);
- btr_cur_unmark_extern_fields(rec, mtr, offsets);
- }
-
- /* Restore the old explicit lock state on the record */
-
- lock_rec_restore_from_page_infimum(rec, page);
-
- page_cur_move_to_next(page_cursor);
-
- mem_heap_free(heap);
-
- return(DB_SUCCESS);
-}
-
-/*****************************************************************
-If, in a split, a new supremum record was created as the predecessor of the
-updated record, the supremum record must inherit exactly the locks on the
-updated record. In the split it may have inherited locks from the successor
-of the updated record, which is not correct. This function restores the
-right locks for the new supremum. */
-static
-void
-btr_cur_pess_upd_restore_supremum(
-/*==============================*/
- rec_t* rec, /* in: updated record */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
- page_t* prev_page;
- ulint space;
- ulint prev_page_no;
-
- page = buf_frame_align(rec);
-
- if (page_rec_get_next(page_get_infimum_rec(page)) != rec) {
- /* Updated record is not the first user record on its page */
-
- return;
- }
-
- space = buf_frame_get_space_id(page);
- prev_page_no = btr_page_get_prev(page, mtr);
-
- ut_ad(prev_page_no != FIL_NULL);
- prev_page = buf_page_get_with_no_latch(space, prev_page_no, mtr);
-
- /* We must already have an x-latch to prev_page! */
- ut_ad(mtr_memo_contains(mtr, buf_block_align(prev_page),
- MTR_MEMO_PAGE_X_FIX));
-
- lock_rec_reset_and_inherit_gap_locks(page_get_supremum_rec(prev_page),
- rec);
-}
-
-/*****************************************************************
-Performs an update of a record on a page of a tree. It is assumed
-that mtr holds an x-latch on the tree and on the cursor page. If the
-update is made on the leaf level, to avoid deadlocks, mtr must also
-own x-latches to brothers of page, if those brothers exist. We assume
-here that the ordering fields of the record do not change. */
-
-ulint
-btr_cur_pessimistic_update(
-/*=======================*/
- /* out: DB_SUCCESS or error code */
- ulint flags, /* in: undo logging, locking, and rollback
- flags */
- btr_cur_t* cursor, /* in: cursor on the record to update */
- big_rec_t** big_rec,/* out: big rec vector whose fields have to
- be stored externally by the caller, or NULL */
- upd_t* update, /* in: update vector; this is allowed also
- contain trx id and roll ptr fields, but
- the values in update vector have no effect */
- ulint cmpl_info,/* in: compiler info on secondary index
- updates */
- que_thr_t* thr, /* in: query thread */
- mtr_t* mtr) /* in: mtr */
-{
- big_rec_t* big_rec_vec = NULL;
- big_rec_t* dummy_big_rec;
- dict_index_t* index;
- page_t* page;
- dict_tree_t* tree;
- rec_t* rec;
- page_cur_t* page_cursor;
- dtuple_t* new_entry;
- mem_heap_t* heap;
- ulint err;
- ulint optim_err;
- ibool dummy_reorganized;
- dulint roll_ptr;
- trx_t* trx;
- ibool was_first;
- ibool success;
- ulint n_extents = 0;
- ulint n_reserved;
- ulint* ext_vect;
- ulint n_ext_vect;
- ulint reserve_flag;
- ulint* offsets = NULL;
-
- *big_rec = NULL;
-
- page = btr_cur_get_page(cursor);
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
- tree = index->tree;
-
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
-
- optim_err = btr_cur_optimistic_update(flags, cursor, update,
- cmpl_info, thr, mtr);
-
- if (optim_err != DB_UNDERFLOW && optim_err != DB_OVERFLOW) {
-
- return(optim_err);
- }
-
- /* Do lock checking and undo logging */
- err = btr_cur_upd_lock_and_undo(flags, cursor, update, cmpl_info,
- thr, &roll_ptr);
- if (err != DB_SUCCESS) {
-
- return(err);
- }
-
- if (optim_err == DB_OVERFLOW) {
- /* First reserve enough free space for the file segments
- of the index tree, so that the update will not fail because
- of lack of space */
-
- n_extents = cursor->tree_height / 16 + 3;
-
- if (flags & BTR_NO_UNDO_LOG_FLAG) {
- reserve_flag = FSP_CLEANING;
- } else {
- reserve_flag = FSP_NORMAL;
- }
-
- success = fsp_reserve_free_extents(&n_reserved,
- cursor->index->space,
- n_extents, reserve_flag, mtr);
- if (!success) {
- err = DB_OUT_OF_FILE_SPACE;
-
- return(err);
- }
- }
-
- heap = mem_heap_create(1024);
- offsets = rec_get_offsets(rec, index, NULL, ULINT_UNDEFINED, &heap);
-
- trx = thr_get_trx(thr);
-
- new_entry = row_rec_to_index_entry(ROW_COPY_DATA, index, rec, heap);
-
- row_upd_index_replace_new_col_vals_index_pos(new_entry, index, update,
- heap);
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- row_upd_index_entry_sys_field(new_entry, index, DATA_ROLL_PTR,
- roll_ptr);
- row_upd_index_entry_sys_field(new_entry, index, DATA_TRX_ID,
- trx->id);
- }
-
- if (flags & BTR_NO_UNDO_LOG_FLAG) {
- /* We are in a transaction rollback undoing a row
- update: we must free possible externally stored fields
- which got new values in the update, if they are not
- inherited values. They can be inherited if we have
- updated the primary key to another value, and then
- update it back again. */
-
- ut_a(big_rec_vec == NULL);
-
- btr_rec_free_updated_extern_fields(index, rec, offsets,
- update, TRUE, mtr);
- }
-
- /* We have to set appropriate extern storage bits in the new
- record to be inserted: we have to remember which fields were such */
-
- ext_vect = mem_heap_alloc(heap, sizeof(ulint)
- * dict_index_get_n_fields(index));
- ut_ad(!cursor->index->table->comp || !rec_get_node_ptr_flag(rec));
- offsets = rec_get_offsets(rec, index, offsets,
- ULINT_UNDEFINED, &heap);
- n_ext_vect = btr_push_update_extern_fields(ext_vect, offsets, update);
-
- if (rec_get_converted_size(index, new_entry) >=
- ut_min(page_get_free_space_of_empty(index->table->comp) / 2,
- REC_MAX_DATA_SIZE)) {
-
- big_rec_vec = dtuple_convert_big_rec(index, new_entry,
- ext_vect, n_ext_vect);
- if (big_rec_vec == NULL) {
-
- err = DB_TOO_BIG_RECORD;
- goto return_after_reservations;
- }
- }
-
- page_cursor = btr_cur_get_page_cur(cursor);
-
- /* Store state of explicit locks on rec on the page infimum record,
- before deleting rec. The page infimum acts as a dummy carrier of the
- locks, taking care also of lock releases, before we can move the locks
- back on the actual record. There is a special case: if we are
- inserting on the root page and the insert causes a call of
- btr_root_raise_and_insert. Therefore we cannot in the lock system
- delete the lock structs set on the root page even if the root
- page carries just node pointers. */
-
- lock_rec_store_on_page_infimum(rec);
-
- btr_search_update_hash_on_delete(cursor);
-
- page_cur_delete_rec(page_cursor, index, offsets, mtr);
-
- page_cur_move_to_prev(page_cursor);
-
- rec = btr_cur_insert_if_possible(cursor, new_entry,
- &dummy_reorganized, mtr);
- ut_a(rec || optim_err != DB_UNDERFLOW);
-
- if (rec) {
- offsets = rec_get_offsets(rec, index, offsets,
- ULINT_UNDEFINED, &heap);
-
- lock_rec_restore_from_page_infimum(rec, page);
- rec_set_field_extern_bits(rec, index,
- ext_vect, n_ext_vect, mtr);
-
- if (!rec_get_deleted_flag(rec, rec_offs_comp(offsets))) {
- /* The new inserted record owns its possible externally
- stored fields */
- btr_cur_unmark_extern_fields(rec, mtr, offsets);
- }
-
- btr_cur_compress_if_useful(cursor, mtr);
-
- err = DB_SUCCESS;
- goto return_after_reservations;
- }
-
- if (page_cur_is_before_first(page_cursor)) {
- /* The record to be updated was positioned as the first user
- record on its page */
-
- was_first = TRUE;
- } else {
- was_first = FALSE;
- }
-
- /* The first parameter means that no lock checking and undo logging
- is made in the insert */
-
- err = btr_cur_pessimistic_insert(BTR_NO_UNDO_LOG_FLAG
- | BTR_NO_LOCKING_FLAG
- | BTR_KEEP_SYS_FLAG,
- cursor, new_entry, &rec,
- &dummy_big_rec, NULL, mtr);
- ut_a(rec);
- ut_a(err == DB_SUCCESS);
- ut_a(dummy_big_rec == NULL);
-
- rec_set_field_extern_bits(rec, index, ext_vect, n_ext_vect, mtr);
- offsets = rec_get_offsets(rec, index, offsets, ULINT_UNDEFINED, &heap);
-
- if (!rec_get_deleted_flag(rec, rec_offs_comp(offsets))) {
- /* The new inserted record owns its possible externally
- stored fields */
-
- btr_cur_unmark_extern_fields(rec, mtr, offsets);
- }
-
- lock_rec_restore_from_page_infimum(rec, page);
-
- /* If necessary, restore also the correct lock state for a new,
- preceding supremum record created in a page split. While the old
- record was nonexistent, the supremum might have inherited its locks
- from a wrong record. */
-
- if (!was_first) {
- btr_cur_pess_upd_restore_supremum(rec, mtr);
- }
-
-return_after_reservations:
- mem_heap_free(heap);
-
- if (n_extents > 0) {
- fil_space_release_free_extents(cursor->index->space,
- n_reserved);
- }
-
- *big_rec = big_rec_vec;
-
- return(err);
-}
-
-/*==================== B-TREE DELETE MARK AND UNMARK ===============*/
-
-/********************************************************************
-Writes the redo log record for delete marking or unmarking of an index
-record. */
-UNIV_INLINE
-void
-btr_cur_del_mark_set_clust_rec_log(
-/*===============================*/
- ulint flags, /* in: flags */
- rec_t* rec, /* in: record */
- dict_index_t* index, /* in: index of the record */
- ibool val, /* in: value to set */
- trx_t* trx, /* in: deleting transaction */
- dulint roll_ptr,/* in: roll ptr to the undo log record */
- mtr_t* mtr) /* in: mtr */
-{
- byte* log_ptr;
- ut_ad(flags < 256);
- ut_ad(val <= 1);
-
- log_ptr = mlog_open_and_write_index(mtr, rec, index, index->table->comp
- ? MLOG_COMP_REC_CLUST_DELETE_MARK
- : MLOG_REC_CLUST_DELETE_MARK,
- 1 + 1 + DATA_ROLL_PTR_LEN + 14 + 2);
-
- if (!log_ptr) {
- /* Logging in mtr is switched off during crash recovery */
- return;
- }
-
- mach_write_to_1(log_ptr, flags);
- log_ptr++;
- mach_write_to_1(log_ptr, val);
- log_ptr++;
-
- log_ptr = row_upd_write_sys_vals_to_log(index, trx, roll_ptr, log_ptr,
- mtr);
- mach_write_to_2(log_ptr, rec - buf_frame_align(rec));
- log_ptr += 2;
-
- mlog_close(mtr, log_ptr);
-}
-
-/********************************************************************
-Parses the redo log record for delete marking or unmarking of a clustered
-index record. */
-
-byte*
-btr_cur_parse_del_mark_set_clust_rec(
-/*=================================*/
- /* out: end of log record or NULL */
- byte* ptr, /* in: buffer */
- byte* end_ptr,/* in: buffer end */
- dict_index_t* index, /* in: index corresponding to page */
- page_t* page) /* in: page or NULL */
-{
- ulint flags;
- ibool val;
- ulint pos;
- dulint trx_id;
- dulint roll_ptr;
- ulint offset;
- rec_t* rec;
-
- if (end_ptr < ptr + 2) {
-
- return(NULL);
- }
-
- flags = mach_read_from_1(ptr);
- ptr++;
- val = mach_read_from_1(ptr);
- ptr++;
-
- ptr = row_upd_parse_sys_vals(ptr, end_ptr, &pos, &trx_id, &roll_ptr);
-
- if (ptr == NULL) {
-
- return(NULL);
- }
-
- if (end_ptr < ptr + 2) {
-
- return(NULL);
- }
-
- offset = mach_read_from_2(ptr);
- ptr += 2;
-
- ut_a(offset <= UNIV_PAGE_SIZE);
-
- if (page) {
- rec = page + offset;
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- row_upd_rec_sys_fields_in_recovery(rec,
- rec_get_offsets(rec, index, offsets_,
- ULINT_UNDEFINED, &heap),
- pos, trx_id, roll_ptr);
- if (heap) {
- mem_heap_free(heap);
- }
- }
-
- /* We do not need to reserve btr_search_latch, as the page
- is only being recovered, and there cannot be a hash index to
- it. */
-
- rec_set_deleted_flag(rec, index->table->comp, val);
- }
-
- return(ptr);
-}
-
-/***************************************************************
-Marks a clustered index record deleted. Writes an undo log record to
-undo log on this delete marking. Writes in the trx id field the id
-of the deleting transaction, and in the roll ptr field pointer to the
-undo log record created. */
-
-ulint
-btr_cur_del_mark_set_clust_rec(
-/*===========================*/
- /* out: DB_SUCCESS, DB_LOCK_WAIT, or error
- number */
- ulint flags, /* in: undo logging and locking flags */
- btr_cur_t* cursor, /* in: cursor */
- ibool val, /* in: value to set */
- que_thr_t* thr, /* in: query thread */
- mtr_t* mtr) /* in: mtr */
-{
- dict_index_t* index;
- buf_block_t* block;
- dulint roll_ptr;
- ulint err;
- rec_t* rec;
- trx_t* trx;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- rec = btr_cur_get_rec(cursor);
- index = cursor->index;
- offsets = rec_get_offsets(rec, index, offsets, ULINT_UNDEFINED, &heap);
-
- if (btr_cur_print_record_ops && thr) {
- btr_cur_trx_report(thr_get_trx(thr), index, "del mark ");
- rec_print_new(stderr, rec, offsets);
- }
-
- ut_ad(index->type & DICT_CLUSTERED);
- ut_ad(rec_get_deleted_flag(rec, index->table->comp) == FALSE);
-
- err = lock_clust_rec_modify_check_and_lock(flags,
- rec, index, offsets, thr);
-
- if (err != DB_SUCCESS) {
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(err);
- }
-
- err = trx_undo_report_row_operation(flags, TRX_UNDO_MODIFY_OP, thr,
- index, NULL, NULL, 0, rec,
- &roll_ptr);
- if (err != DB_SUCCESS) {
-
- if (heap) {
- mem_heap_free(heap);
- }
- return(err);
- }
-
- block = buf_block_align(rec);
-
- if (block->is_hashed) {
- rw_lock_x_lock(&btr_search_latch);
- }
-
- rec_set_deleted_flag(rec, index->table->comp, val);
-
- trx = thr_get_trx(thr);
-
- if (!(flags & BTR_KEEP_SYS_FLAG)) {
- row_upd_rec_sys_fields(rec, index, offsets, trx, roll_ptr);
- }
-
- if (block->is_hashed) {
- rw_lock_x_unlock(&btr_search_latch);
- }
-
- btr_cur_del_mark_set_clust_rec_log(flags, rec, index, val, trx,
- roll_ptr, mtr);
- if (heap) {
- mem_heap_free(heap);
- }
- return(DB_SUCCESS);
-}
-
-/********************************************************************
-Writes the redo log record for a delete mark setting of a secondary
-index record. */
-UNIV_INLINE
-void
-btr_cur_del_mark_set_sec_rec_log(
-/*=============================*/
- rec_t* rec, /* in: record */
- dict_index_t* index, /* in: record descriptor */
- ibool val, /* in: value to set */
- mtr_t* mtr) /* in: mtr */
-{
- byte* log_ptr;
- ut_ad(val <= 1);
-
- log_ptr = mlog_open_and_write_index(mtr, rec, index, index->table->comp
- ? MLOG_COMP_REC_SEC_DELETE_MARK
- : MLOG_REC_SEC_DELETE_MARK,
- 1 + 2);
-
- if (!log_ptr) {
- /* Logging in mtr is switched off during crash recovery:
- in that case mlog_open returns NULL */
- return;
- }
-
- mach_write_to_1(log_ptr, val);
- log_ptr++;
-
- mach_write_to_2(log_ptr, rec - buf_frame_align(rec));
- log_ptr += 2;
-
- mlog_close(mtr, log_ptr);
-}
-
-/********************************************************************
-Parses the redo log record for delete marking or unmarking of a secondary
-index record. */
-
-byte*
-btr_cur_parse_del_mark_set_sec_rec(
-/*===============================*/
- /* out: end of log record or NULL */
- byte* ptr, /* in: buffer */
- byte* end_ptr,/* in: buffer end */
- dict_index_t* index, /* in: record descriptor */
- page_t* page) /* in: page or NULL */
-{
- ibool val;
- ulint offset;
- rec_t* rec;
-
- if (end_ptr < ptr + 3) {
-
- return(NULL);
- }
-
- val = mach_read_from_1(ptr);
- ptr++;
-
- offset = mach_read_from_2(ptr);
- ptr += 2;
-
- ut_a(offset <= UNIV_PAGE_SIZE);
-
- if (page) {
- rec = page + offset;
-
- /* We do not need to reserve btr_search_latch, as the page
- is only being recovered, and there cannot be a hash index to
- it. */
-
- rec_set_deleted_flag(rec, index->table->comp, val);
- }
-
- return(ptr);
-}
-
-/***************************************************************
-Sets a secondary index record delete mark to TRUE or FALSE. */
-
-ulint
-btr_cur_del_mark_set_sec_rec(
-/*=========================*/
- /* out: DB_SUCCESS, DB_LOCK_WAIT, or error
- number */
- ulint flags, /* in: locking flag */
- btr_cur_t* cursor, /* in: cursor */
- ibool val, /* in: value to set */
- que_thr_t* thr, /* in: query thread */
- mtr_t* mtr) /* in: mtr */
-{
- buf_block_t* block;
- rec_t* rec;
- ulint err;
-
- rec = btr_cur_get_rec(cursor);
-
- if (btr_cur_print_record_ops && thr) {
- btr_cur_trx_report(thr_get_trx(thr), cursor->index,
- "del mark ");
- rec_print(stderr, rec, cursor->index);
- }
-
- err = lock_sec_rec_modify_check_and_lock(flags, rec, cursor->index,
- thr);
- if (err != DB_SUCCESS) {
-
- return(err);
- }
-
- block = buf_block_align(rec);
-
- if (block->is_hashed) {
- rw_lock_x_lock(&btr_search_latch);
- }
-
- rec_set_deleted_flag(rec, cursor->index->table->comp, val);
-
- if (block->is_hashed) {
- rw_lock_x_unlock(&btr_search_latch);
- }
-
- btr_cur_del_mark_set_sec_rec_log(rec, cursor->index, val, mtr);
-
- return(DB_SUCCESS);
-}
-
-/***************************************************************
-Sets a secondary index record delete mark to FALSE. This function is only
-used by the insert buffer insert merge mechanism. */
-
-void
-btr_cur_del_unmark_for_ibuf(
-/*========================*/
- rec_t* rec, /* in: record to delete unmark */
- dict_index_t* index, /* in: record descriptor */
- mtr_t* mtr) /* in: mtr */
-{
- /* We do not need to reserve btr_search_latch, as the page has just
- been read to the buffer pool and there cannot be a hash index to it. */
-
- rec_set_deleted_flag(rec, index->table->comp, FALSE);
-
- btr_cur_del_mark_set_sec_rec_log(rec, index, FALSE, mtr);
-}
-
-/*==================== B-TREE RECORD REMOVE =========================*/
-
-/*****************************************************************
-Tries to compress a page of the tree on the leaf level. It is assumed
-that mtr holds an x-latch on the tree and on the cursor page. To avoid
-deadlocks, mtr must also own x-latches to brothers of page, if those
-brothers exist. NOTE: it is assumed that the caller has reserved enough
-free extents so that the compression will always succeed if done! */
-
-void
-btr_cur_compress(
-/*=============*/
- btr_cur_t* cursor, /* in: cursor on the page to compress;
- cursor does not stay valid */
- mtr_t* mtr) /* in: mtr */
-{
- ut_ad(mtr_memo_contains(mtr,
- dict_tree_get_lock(btr_cur_get_tree(cursor)),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(
- btr_cur_get_page(cursor)),
- MTR_MEMO_PAGE_X_FIX));
- ut_ad(btr_page_get_level(btr_cur_get_page(cursor), mtr) == 0);
-
- btr_compress(cursor, mtr);
-}
-
-/*****************************************************************
-Tries to compress a page of the tree if it seems useful. It is assumed
-that mtr holds an x-latch on the tree and on the cursor page. To avoid
-deadlocks, mtr must also own x-latches to brothers of page, if those
-brothers exist. NOTE: it is assumed that the caller has reserved enough
-free extents so that the compression will always succeed if done! */
-
-ibool
-btr_cur_compress_if_useful(
-/*=======================*/
- /* out: TRUE if compression occurred */
- btr_cur_t* cursor, /* in: cursor on the page to compress;
- cursor does not stay valid if compression
- occurs */
- mtr_t* mtr) /* in: mtr */
-{
- ut_ad(mtr_memo_contains(mtr,
- dict_tree_get_lock(btr_cur_get_tree(cursor)),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(
- btr_cur_get_page(cursor)),
- MTR_MEMO_PAGE_X_FIX));
-
- if (btr_cur_compress_recommendation(cursor, mtr)) {
-
- btr_compress(cursor, mtr);
-
- return(TRUE);
- }
-
- return(FALSE);
-}
-
-/***********************************************************
-Removes the record on which the tree cursor is positioned on a leaf page.
-It is assumed that the mtr has an x-latch on the page where the cursor is
-positioned, but no latch on the whole tree. */
-
-ibool
-btr_cur_optimistic_delete(
-/*======================*/
- /* out: TRUE if success, i.e., the page
- did not become too empty */
- btr_cur_t* cursor, /* in: cursor on leaf page, on the record to
- delete; cursor stays valid: if deletion
- succeeds, on function exit it points to the
- successor of the deleted record */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
- ulint max_ins_size;
- rec_t* rec;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- ibool no_compress_needed;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(btr_cur_get_page(cursor)),
- MTR_MEMO_PAGE_X_FIX));
- /* This is intended only for leaf page deletions */
-
- page = btr_cur_get_page(cursor);
-
- ut_ad(btr_page_get_level(page, mtr) == 0);
-
- rec = btr_cur_get_rec(cursor);
- offsets = rec_get_offsets(rec, cursor->index, offsets,
- ULINT_UNDEFINED, &heap);
-
- no_compress_needed = !rec_offs_any_extern(offsets)
- && btr_cur_can_delete_without_compress(
- cursor, rec_offs_size(offsets), mtr);
-
- if (no_compress_needed) {
-
- lock_update_delete(rec);
-
- btr_search_update_hash_on_delete(cursor);
-
- max_ins_size = page_get_max_insert_size_after_reorganize(page,
- 1);
- page_cur_delete_rec(btr_cur_get_page_cur(cursor),
- cursor->index, offsets, mtr);
-
- ibuf_update_free_bits_low(cursor->index, page, max_ins_size,
- mtr);
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
-
- return(no_compress_needed);
-}
-
-/*****************************************************************
-Removes the record on which the tree cursor is positioned. Tries
-to compress the page if its fillfactor drops below a threshold
-or if it is the only page on the level. It is assumed that mtr holds
-an x-latch on the tree and on the cursor page. To avoid deadlocks,
-mtr must also own x-latches to brothers of page, if those brothers
-exist. */
-
-ibool
-btr_cur_pessimistic_delete(
-/*=======================*/
- /* out: TRUE if compression occurred */
- ulint* err, /* out: DB_SUCCESS or DB_OUT_OF_FILE_SPACE;
- the latter may occur because we may have
- to update node pointers on upper levels,
- and in the case of variable length keys
- these may actually grow in size */
- ibool has_reserved_extents, /* in: TRUE if the
- caller has already reserved enough free
- extents so that he knows that the operation
- will succeed */
- btr_cur_t* cursor, /* in: cursor on the record to delete;
- if compression does not occur, the cursor
- stays valid: it points to successor of
- deleted record on function exit */
- ibool in_rollback,/* in: TRUE if called in rollback */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
- dict_tree_t* tree;
- rec_t* rec;
- dtuple_t* node_ptr;
- ulint n_extents = 0;
- ulint n_reserved;
- ibool success;
- ibool ret = FALSE;
- mem_heap_t* heap;
- ulint* offsets;
-
- page = btr_cur_get_page(cursor);
- tree = btr_cur_get_tree(cursor);
-
- ut_ad(mtr_memo_contains(mtr, dict_tree_get_lock(tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- if (!has_reserved_extents) {
- /* First reserve enough free space for the file segments
- of the index tree, so that the node pointer updates will
- not fail because of lack of space */
-
- n_extents = cursor->tree_height / 32 + 1;
-
- success = fsp_reserve_free_extents(&n_reserved,
- cursor->index->space,
- n_extents, FSP_CLEANING, mtr);
- if (!success) {
- *err = DB_OUT_OF_FILE_SPACE;
-
- return(FALSE);
- }
- }
-
- heap = mem_heap_create(1024);
- rec = btr_cur_get_rec(cursor);
-
- offsets = rec_get_offsets(rec, cursor->index,
- NULL, ULINT_UNDEFINED, &heap);
-
- /* Free externally stored fields if the record is neither
- a node pointer nor in two-byte format.
- This avoids an unnecessary loop. */
- if (cursor->index->table->comp
- ? !rec_get_node_ptr_flag(rec)
- : !rec_get_1byte_offs_flag(rec)) {
- btr_rec_free_externally_stored_fields(cursor->index,
- rec, offsets, in_rollback, mtr);
- }
-
- if ((page_get_n_recs(page) < 2)
- && (dict_tree_get_page(btr_cur_get_tree(cursor))
- != buf_frame_get_page_no(page))) {
-
- /* If there is only one record, drop the whole page in
- btr_discard_page, if this is not the root page */
-
- btr_discard_page(cursor, mtr);
-
- *err = DB_SUCCESS;
- ret = TRUE;
-
- goto return_after_reservations;
- }
-
- lock_update_delete(rec);
-
- if ((btr_page_get_level(page, mtr) > 0)
- && (page_rec_get_next(page_get_infimum_rec(page)) == rec)) {
-
- if (btr_page_get_prev(page, mtr) == FIL_NULL) {
-
- /* If we delete the leftmost node pointer on a
- non-leaf level, we must mark the new leftmost node
- pointer as the predefined minimum record */
-
- btr_set_min_rec_mark(page_rec_get_next(rec),
- cursor->index->table->comp, mtr);
- } else {
- /* Otherwise, if we delete the leftmost node pointer
- on a page, we have to change the father node pointer
- so that it is equal to the new leftmost node pointer
- on the page */
-
- btr_node_ptr_delete(tree, page, mtr);
-
- node_ptr = dict_tree_build_node_ptr(
- tree, page_rec_get_next(rec),
- buf_frame_get_page_no(page),
- heap, btr_page_get_level(page, mtr));
-
- btr_insert_on_non_leaf_level(tree,
- btr_page_get_level(page, mtr) + 1,
- node_ptr, mtr);
- }
- }
-
- btr_search_update_hash_on_delete(cursor);
-
- page_cur_delete_rec(btr_cur_get_page_cur(cursor), cursor->index,
- offsets, mtr);
-
- ut_ad(btr_check_node_ptr(tree, page, mtr));
-
- *err = DB_SUCCESS;
-
-return_after_reservations:
- mem_heap_free(heap);
-
- if (ret == FALSE) {
- ret = btr_cur_compress_if_useful(cursor, mtr);
- }
-
- if (n_extents > 0) {
- fil_space_release_free_extents(cursor->index->space,
- n_reserved);
- }
-
- return(ret);
-}
-
-/***********************************************************************
-Adds path information to the cursor for the current page, for which
-the binary search has been performed. */
-static
-void
-btr_cur_add_path_info(
-/*==================*/
- btr_cur_t* cursor, /* in: cursor positioned on a page */
- ulint height, /* in: height of the page in tree;
- 0 means leaf node */
- ulint root_height) /* in: root node height in tree */
-{
- btr_path_t* slot;
- rec_t* rec;
-
- ut_a(cursor->path_arr);
-
- if (root_height >= BTR_PATH_ARRAY_N_SLOTS - 1) {
- /* Do nothing; return empty path */
-
- slot = cursor->path_arr;
- slot->nth_rec = ULINT_UNDEFINED;
-
- return;
- }
-
- if (height == 0) {
- /* Mark end of slots for path */
- slot = cursor->path_arr + root_height + 1;
- slot->nth_rec = ULINT_UNDEFINED;
- }
-
- rec = btr_cur_get_rec(cursor);
-
- slot = cursor->path_arr + (root_height - height);
-
- slot->nth_rec = page_rec_get_n_recs_before(rec);
- slot->n_recs = page_get_n_recs(buf_frame_align(rec));
-}
-
-/***********************************************************************
-Estimates the number of rows in a given index range. */
-
-ib_longlong
-btr_estimate_n_rows_in_range(
-/*=========================*/
- /* out: estimated number of rows */
- dict_index_t* index, /* in: index */
- dtuple_t* tuple1, /* in: range start, may also be empty tuple */
- ulint mode1, /* in: search mode for range start */
- dtuple_t* tuple2, /* in: range end, may also be empty tuple */
- ulint mode2) /* in: search mode for range end */
-{
- btr_path_t path1[BTR_PATH_ARRAY_N_SLOTS];
- btr_path_t path2[BTR_PATH_ARRAY_N_SLOTS];
- btr_cur_t cursor;
- btr_path_t* slot1;
- btr_path_t* slot2;
- ibool diverged;
- ibool diverged_lot;
- ulint divergence_level;
- ib_longlong n_rows;
- ulint i;
- mtr_t mtr;
-
- mtr_start(&mtr);
-
- cursor.path_arr = path1;
-
- if (dtuple_get_n_fields(tuple1) > 0) {
-
- btr_cur_search_to_nth_level(index, 0, tuple1, mode1,
- BTR_SEARCH_LEAF | BTR_ESTIMATE,
- &cursor, 0, &mtr);
- } else {
- btr_cur_open_at_index_side(TRUE, index,
- BTR_SEARCH_LEAF | BTR_ESTIMATE,
- &cursor, &mtr);
- }
-
- mtr_commit(&mtr);
-
- mtr_start(&mtr);
-
- cursor.path_arr = path2;
-
- if (dtuple_get_n_fields(tuple2) > 0) {
-
- btr_cur_search_to_nth_level(index, 0, tuple2, mode2,
- BTR_SEARCH_LEAF | BTR_ESTIMATE,
- &cursor, 0, &mtr);
- } else {
- btr_cur_open_at_index_side(FALSE, index,
- BTR_SEARCH_LEAF | BTR_ESTIMATE,
- &cursor, &mtr);
- }
-
- mtr_commit(&mtr);
-
- /* We have the path information for the range in path1 and path2 */
-
- n_rows = 1;
- diverged = FALSE; /* This becomes true when the path is not
- the same any more */
- diverged_lot = FALSE; /* This becomes true when the paths are
- not the same or adjacent any more */
- divergence_level = 1000000; /* This is the level where paths diverged
- a lot */
- for (i = 0; ; i++) {
- ut_ad(i < BTR_PATH_ARRAY_N_SLOTS);
-
- slot1 = path1 + i;
- slot2 = path2 + i;
-
- if (slot1->nth_rec == ULINT_UNDEFINED
- || slot2->nth_rec == ULINT_UNDEFINED) {
-
- if (i > divergence_level + 1) {
- /* In trees whose height is > 1 our algorithm
- tends to underestimate: multiply the estimate
- by 2: */
-
- n_rows = n_rows * 2;
- }
-
- /* Do not estimate the number of rows in the range
- to over 1 / 2 of the estimated rows in the whole
- table */
-
- if (n_rows > index->table->stat_n_rows / 2) {
- n_rows = index->table->stat_n_rows / 2;
-
- /* If there are just 0 or 1 rows in the table,
- then we estimate all rows are in the range */
-
- if (n_rows == 0) {
- n_rows = index->table->stat_n_rows;
- }
- }
-
- return(n_rows);
- }
-
- if (!diverged && slot1->nth_rec != slot2->nth_rec) {
-
- diverged = TRUE;
-
- if (slot1->nth_rec < slot2->nth_rec) {
- n_rows = slot2->nth_rec - slot1->nth_rec;
-
- if (n_rows > 1) {
- diverged_lot = TRUE;
- divergence_level = i;
- }
- } else {
- /* Maybe the tree has changed between
- searches */
-
- return(10);
- }
-
- } else if (diverged && !diverged_lot) {
-
- if (slot1->nth_rec < slot1->n_recs
- || slot2->nth_rec > 1) {
-
- diverged_lot = TRUE;
- divergence_level = i;
-
- n_rows = 0;
-
- if (slot1->nth_rec < slot1->n_recs) {
- n_rows += slot1->n_recs
- - slot1->nth_rec;
- }
-
- if (slot2->nth_rec > 1) {
- n_rows += slot2->nth_rec - 1;
- }
- }
- } else if (diverged_lot) {
-
- n_rows = (n_rows * (slot1->n_recs + slot2->n_recs))
- / 2;
- }
- }
-}
-
-/***********************************************************************
-Estimates the number of different key values in a given index, for
-each n-column prefix of the index where n <= dict_index_get_n_unique(index).
-The estimates are stored in the array index->stat_n_diff_key_vals. */
-
-void
-btr_estimate_number_of_different_key_vals(
-/*======================================*/
- dict_index_t* index) /* in: index */
-{
- btr_cur_t cursor;
- page_t* page;
- rec_t* rec;
- ulint n_cols;
- ulint matched_fields;
- ulint matched_bytes;
- ib_longlong* n_diff;
- ulint not_empty_flag = 0;
- ulint total_external_size = 0;
- ulint i;
- ulint j;
- ulint add_on;
- mtr_t mtr;
- mem_heap_t* heap = NULL;
- ulint offsets1_[REC_OFFS_NORMAL_SIZE];
- ulint offsets2_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets1 = offsets1_;
- ulint* offsets2 = offsets2_;
- *offsets1_ = (sizeof offsets1_) / sizeof *offsets1_;
- *offsets2_ = (sizeof offsets2_) / sizeof *offsets2_;
-
- n_cols = dict_index_get_n_unique(index);
-
- n_diff = mem_alloc((n_cols + 1) * sizeof(ib_longlong));
-
- for (j = 0; j <= n_cols; j++) {
- n_diff[j] = 0;
- }
-
- /* We sample some pages in the index to get an estimate */
-
- for (i = 0; i < BTR_KEY_VAL_ESTIMATE_N_PAGES; i++) {
- mtr_start(&mtr);
-
- btr_cur_open_at_rnd_pos(index, BTR_SEARCH_LEAF, &cursor, &mtr);
-
- /* Count the number of different key values for each prefix of
- the key on this index page. If the prefix does not determine
- the index record uniquely in te B-tree, then we subtract one
- because otherwise our algorithm would give a wrong estimate
- for an index where there is just one key value. */
-
- page = btr_cur_get_page(&cursor);
-
- rec = page_get_infimum_rec(page);
- rec = page_rec_get_next(rec);
-
- if (rec != page_get_supremum_rec(page)) {
- not_empty_flag = 1;
- }
-
- while (rec != page_get_supremum_rec(page)
- && page_rec_get_next(rec)
- != page_get_supremum_rec(page)) {
- rec_t* next_rec = page_rec_get_next(rec);
- matched_fields = 0;
- matched_bytes = 0;
- offsets1 = rec_get_offsets(rec, index, offsets1,
- ULINT_UNDEFINED, &heap);
- offsets2 = rec_get_offsets(next_rec, index, offsets2,
- n_cols, &heap);
-
- cmp_rec_rec_with_match(rec, next_rec,
- offsets1, offsets2,
- index, &matched_fields,
- &matched_bytes);
-
- for (j = matched_fields + 1; j <= n_cols; j++) {
- /* We add one if this index record has
- a different prefix from the previous */
-
- n_diff[j]++;
- }
-
- total_external_size +=
- btr_rec_get_externally_stored_len(
- rec, offsets1);
-
- rec = page_rec_get_next(rec);
- }
-
-
- if (n_cols == dict_index_get_n_unique_in_tree(index)) {
-
- /* If there is more than one leaf page in the tree,
- we add one because we know that the first record
- on the page certainly had a different prefix than the
- last record on the previous index page in the
- alphabetical order. Before this fix, if there was
- just one big record on each clustered index page, the
- algorithm grossly underestimated the number of rows
- in the table. */
-
- if (btr_page_get_prev(page, &mtr) != FIL_NULL
- || btr_page_get_next(page, &mtr) != FIL_NULL) {
-
- n_diff[n_cols]++;
- }
- }
-
- offsets1 = rec_get_offsets(rec, index, offsets1,
- ULINT_UNDEFINED, &heap);
- total_external_size +=
- btr_rec_get_externally_stored_len(rec,
- offsets1);
- mtr_commit(&mtr);
- }
-
- /* If we saw k borders between different key values on
- BTR_KEY_VAL_ESTIMATE_N_PAGES leaf pages, we can estimate how many
- there will be in index->stat_n_leaf_pages */
-
- /* We must take into account that our sample actually represents
- also the pages used for external storage of fields (those pages are
- included in index->stat_n_leaf_pages) */
-
- for (j = 0; j <= n_cols; j++) {
- index->stat_n_diff_key_vals[j] =
- (n_diff[j]
- * (ib_longlong)index->stat_n_leaf_pages
- + BTR_KEY_VAL_ESTIMATE_N_PAGES - 1
- + total_external_size
- + not_empty_flag)
- / (BTR_KEY_VAL_ESTIMATE_N_PAGES
- + total_external_size);
-
- /* If the tree is small, smaller than <
- 10 * BTR_KEY_VAL_ESTIMATE_N_PAGES + total_external_size, then
- the above estimate is ok. For bigger trees it is common that we
- do not see any borders between key values in the few pages
- we pick. But still there may be BTR_KEY_VAL_ESTIMATE_N_PAGES
- different key values, or even more. Let us try to approximate
- that: */
-
- add_on = index->stat_n_leaf_pages /
- (10 * (BTR_KEY_VAL_ESTIMATE_N_PAGES + total_external_size));
-
- if (add_on > BTR_KEY_VAL_ESTIMATE_N_PAGES) {
- add_on = BTR_KEY_VAL_ESTIMATE_N_PAGES;
- }
-
- index->stat_n_diff_key_vals[j] += add_on;
- }
-
- mem_free(n_diff);
- if (heap) {
- mem_heap_free(heap);
- }
-}
-
-/*================== EXTERNAL STORAGE OF BIG FIELDS ===================*/
-
-/***************************************************************
-Gets the externally stored size of a record, in units of a database page. */
-static
-ulint
-btr_rec_get_externally_stored_len(
-/*==============================*/
- /* out: externally stored part,
- in units of a database page */
- rec_t* rec, /* in: record */
- const ulint* offsets)/* in: array returned by rec_get_offsets() */
-{
- ulint n_fields;
- byte* data;
- ulint local_len;
- ulint extern_len;
- ulint total_extern_len = 0;
- ulint i;
-
- ut_ad(!rec_offs_comp(offsets) || !rec_get_node_ptr_flag(rec));
- n_fields = rec_offs_n_fields(offsets);
-
- for (i = 0; i < n_fields; i++) {
- if (rec_offs_nth_extern(offsets, i)) {
-
- data = rec_get_nth_field(rec, offsets, i, &local_len);
-
- local_len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- extern_len = mach_read_from_4(data + local_len
- + BTR_EXTERN_LEN + 4);
-
- total_extern_len += ut_calc_align(extern_len,
- UNIV_PAGE_SIZE);
- }
- }
-
- return(total_extern_len / UNIV_PAGE_SIZE);
-}
-
-/***********************************************************************
-Sets the ownership bit of an externally stored field in a record. */
-static
-void
-btr_cur_set_ownership_of_extern_field(
-/*==================================*/
- rec_t* rec, /* in: clustered index record */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- ulint i, /* in: field number */
- ibool val, /* in: value to set */
- mtr_t* mtr) /* in: mtr */
-{
- byte* data;
- ulint local_len;
- ulint byte_val;
-
- data = rec_get_nth_field(rec, offsets, i, &local_len);
-
- ut_a(local_len >= BTR_EXTERN_FIELD_REF_SIZE);
-
- local_len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- byte_val = mach_read_from_1(data + local_len + BTR_EXTERN_LEN);
-
- if (val) {
- byte_val = byte_val & (~BTR_EXTERN_OWNER_FLAG);
- } else {
- byte_val = byte_val | BTR_EXTERN_OWNER_FLAG;
- }
-
- mlog_write_ulint(data + local_len + BTR_EXTERN_LEN, byte_val,
- MLOG_1BYTE, mtr);
-}
-
-/***********************************************************************
-Marks not updated extern fields as not-owned by this record. The ownership
-is transferred to the updated record which is inserted elsewhere in the
-index tree. In purge only the owner of externally stored field is allowed
-to free the field. */
-
-void
-btr_cur_mark_extern_inherited_fields(
-/*=================================*/
- rec_t* rec, /* in: record in a clustered index */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- upd_t* update, /* in: update vector */
- mtr_t* mtr) /* in: mtr */
-{
- ibool is_updated;
- ulint n;
- ulint j;
- ulint i;
-
- ut_ad(rec_offs_validate(rec, NULL, offsets));
- ut_ad(!rec_offs_comp(offsets) || !rec_get_node_ptr_flag(rec));
- n = rec_offs_n_fields(offsets);
-
- for (i = 0; i < n; i++) {
- if (rec_offs_nth_extern(offsets, i)) {
-
- /* Check it is not in updated fields */
- is_updated = FALSE;
-
- if (update) {
- for (j = 0; j < upd_get_n_fields(update);
- j++) {
- if (upd_get_nth_field(update, j)
- ->field_no == i) {
- is_updated = TRUE;
- }
- }
- }
-
- if (!is_updated) {
- btr_cur_set_ownership_of_extern_field(rec,
- offsets, i, FALSE, mtr);
- }
- }
- }
-}
-
-/***********************************************************************
-The complement of the previous function: in an update entry may inherit
-some externally stored fields from a record. We must mark them as inherited
-in entry, so that they are not freed in a rollback. */
-
-void
-btr_cur_mark_dtuple_inherited_extern(
-/*=================================*/
- dtuple_t* entry, /* in: updated entry to be inserted to
- clustered index */
- ulint* ext_vec, /* in: array of extern fields in the
- original record */
- ulint n_ext_vec, /* in: number of elements in ext_vec */
- upd_t* update) /* in: update vector */
-{
- dfield_t* dfield;
- ulint byte_val;
- byte* data;
- ulint len;
- ibool is_updated;
- ulint j;
- ulint i;
-
- if (ext_vec == NULL) {
-
- return;
- }
-
- for (i = 0; i < n_ext_vec; i++) {
-
- /* Check ext_vec[i] is in updated fields */
- is_updated = FALSE;
-
- for (j = 0; j < upd_get_n_fields(update); j++) {
- if (upd_get_nth_field(update, j)->field_no
- == ext_vec[i]) {
- is_updated = TRUE;
- }
- }
-
- if (!is_updated) {
- dfield = dtuple_get_nth_field(entry, ext_vec[i]);
-
- data = (byte*) dfield_get_data(dfield);
- len = dfield_get_len(dfield);
-
- len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- byte_val = mach_read_from_1(data + len
- + BTR_EXTERN_LEN);
-
- byte_val = byte_val | BTR_EXTERN_INHERITED_FLAG;
-
- mach_write_to_1(data + len + BTR_EXTERN_LEN, byte_val);
- }
- }
-}
-
-/***********************************************************************
-Marks all extern fields in a record as owned by the record. This function
-should be called if the delete mark of a record is removed: a not delete
-marked record always owns all its extern fields. */
-static
-void
-btr_cur_unmark_extern_fields(
-/*=========================*/
- rec_t* rec, /* in: record in a clustered index */
- mtr_t* mtr, /* in: mtr */
- const ulint* offsets)/* in: array returned by rec_get_offsets() */
-{
- ulint n;
- ulint i;
-
- ut_ad(!rec_offs_comp(offsets) || !rec_get_node_ptr_flag(rec));
- n = rec_offs_n_fields(offsets);
-
- for (i = 0; i < n; i++) {
- if (rec_offs_nth_extern(offsets, i)) {
-
- btr_cur_set_ownership_of_extern_field(rec, offsets, i,
- TRUE, mtr);
- }
- }
-}
-
-/***********************************************************************
-Marks all extern fields in a dtuple as owned by the record. */
-
-void
-btr_cur_unmark_dtuple_extern_fields(
-/*================================*/
- dtuple_t* entry, /* in: clustered index entry */
- ulint* ext_vec, /* in: array of numbers of fields
- which have been stored externally */
- ulint n_ext_vec) /* in: number of elements in ext_vec */
-{
- dfield_t* dfield;
- ulint byte_val;
- byte* data;
- ulint len;
- ulint i;
-
- for (i = 0; i < n_ext_vec; i++) {
- dfield = dtuple_get_nth_field(entry, ext_vec[i]);
-
- data = (byte*) dfield_get_data(dfield);
- len = dfield_get_len(dfield);
-
- len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- byte_val = mach_read_from_1(data + len + BTR_EXTERN_LEN);
-
- byte_val = byte_val & (~BTR_EXTERN_OWNER_FLAG);
-
- mach_write_to_1(data + len + BTR_EXTERN_LEN, byte_val);
- }
-}
-
-/***********************************************************************
-Stores the positions of the fields marked as extern storage in the update
-vector, and also those fields who are marked as extern storage in rec
-and not mentioned in updated fields. We use this function to remember
-which fields we must mark as extern storage in a record inserted for an
-update. */
-
-ulint
-btr_push_update_extern_fields(
-/*==========================*/
- /* out: number of values stored in ext_vect */
- ulint* ext_vect,/* in: array of ulints, must be preallocated
- to have space for all fields in rec */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- upd_t* update) /* in: update vector or NULL */
-{
- ulint n_pushed = 0;
- ibool is_updated;
- ulint n;
- ulint j;
- ulint i;
-
- if (update) {
- n = upd_get_n_fields(update);
-
- for (i = 0; i < n; i++) {
-
- if (upd_get_nth_field(update, i)->extern_storage) {
-
- ext_vect[n_pushed] =
- upd_get_nth_field(update, i)->field_no;
-
- n_pushed++;
- }
- }
- }
-
- n = rec_offs_n_fields(offsets);
-
- for (i = 0; i < n; i++) {
- if (rec_offs_nth_extern(offsets, i)) {
-
- /* Check it is not in updated fields */
- is_updated = FALSE;
-
- if (update) {
- for (j = 0; j < upd_get_n_fields(update);
- j++) {
- if (upd_get_nth_field(update, j)
- ->field_no == i) {
- is_updated = TRUE;
- }
- }
- }
-
- if (!is_updated) {
- ext_vect[n_pushed] = i;
- n_pushed++;
- }
- }
- }
-
- return(n_pushed);
-}
-
-/***********************************************************************
-Returns the length of a BLOB part stored on the header page. */
-static
-ulint
-btr_blob_get_part_len(
-/*==================*/
- /* out: part length */
- byte* blob_header) /* in: blob header */
-{
- return(mach_read_from_4(blob_header + BTR_BLOB_HDR_PART_LEN));
-}
-
-/***********************************************************************
-Returns the page number where the next BLOB part is stored. */
-static
-ulint
-btr_blob_get_next_page_no(
-/*======================*/
- /* out: page number or FIL_NULL if
- no more pages */
- byte* blob_header) /* in: blob header */
-{
- return(mach_read_from_4(blob_header + BTR_BLOB_HDR_NEXT_PAGE_NO));
-}
-
-/***********************************************************************
-Stores the fields in big_rec_vec to the tablespace and puts pointers to
-them in rec. The fields are stored on pages allocated from leaf node
-file segment of the index tree. */
-
-ulint
-btr_store_big_rec_extern_fields(
-/*============================*/
- /* out: DB_SUCCESS or error */
- dict_index_t* index, /* in: index of rec; the index tree
- MUST be X-latched */
- rec_t* rec, /* in: record */
- const ulint* offsets, /* in: rec_get_offsets(rec, index) */
- big_rec_t* big_rec_vec, /* in: vector containing fields
- to be stored externally */
- mtr_t* local_mtr __attribute__((unused))) /* in: mtr
- containing the latch to rec and to the
- tree */
-{
- byte* data;
- ulint local_len;
- ulint extern_len;
- ulint store_len;
- ulint page_no;
- page_t* page;
- ulint space_id;
- page_t* prev_page;
- page_t* rec_page;
- ulint prev_page_no;
- ulint hint_page_no;
- ulint i;
- mtr_t mtr;
-
- ut_ad(rec_offs_validate(rec, index, offsets));
- ut_ad(mtr_memo_contains(local_mtr, dict_tree_get_lock(index->tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(local_mtr, buf_block_align(rec),
- MTR_MEMO_PAGE_X_FIX));
- ut_a(index->type & DICT_CLUSTERED);
-
- space_id = buf_frame_get_space_id(rec);
-
- /* We have to create a file segment to the tablespace
- for each field and put the pointer to the field in rec */
-
- for (i = 0; i < big_rec_vec->n_fields; i++) {
-
- data = rec_get_nth_field(rec, offsets,
- big_rec_vec->fields[i].field_no, &local_len);
- ut_a(local_len >= BTR_EXTERN_FIELD_REF_SIZE);
- local_len -= BTR_EXTERN_FIELD_REF_SIZE;
- extern_len = big_rec_vec->fields[i].len;
-
- ut_a(extern_len > 0);
-
- prev_page_no = FIL_NULL;
-
- while (extern_len > 0) {
- mtr_start(&mtr);
-
- if (prev_page_no == FIL_NULL) {
- hint_page_no = buf_frame_get_page_no(rec) + 1;
- } else {
- hint_page_no = prev_page_no + 1;
- }
-
- page = btr_page_alloc(index->tree, hint_page_no,
- FSP_NO_DIR, 0, &mtr);
- if (page == NULL) {
-
- mtr_commit(&mtr);
-
- return(DB_OUT_OF_FILE_SPACE);
- }
-
- page_no = buf_frame_get_page_no(page);
-
- if (prev_page_no != FIL_NULL) {
- prev_page = buf_page_get(space_id,
- prev_page_no,
- RW_X_LATCH, &mtr);
-
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(prev_page,
- SYNC_EXTERN_STORAGE);
-#endif /* UNIV_SYNC_DEBUG */
-
- mlog_write_ulint(prev_page + FIL_PAGE_DATA
- + BTR_BLOB_HDR_NEXT_PAGE_NO,
- page_no, MLOG_4BYTES, &mtr);
- }
-
- if (extern_len > (UNIV_PAGE_SIZE - FIL_PAGE_DATA
- - BTR_BLOB_HDR_SIZE
- - FIL_PAGE_DATA_END)) {
- store_len = UNIV_PAGE_SIZE - FIL_PAGE_DATA
- - BTR_BLOB_HDR_SIZE
- - FIL_PAGE_DATA_END;
- } else {
- store_len = extern_len;
- }
-
- mlog_write_string(page + FIL_PAGE_DATA
- + BTR_BLOB_HDR_SIZE,
- big_rec_vec->fields[i].data
- + big_rec_vec->fields[i].len
- - extern_len,
- store_len, &mtr);
- mlog_write_ulint(page + FIL_PAGE_DATA
- + BTR_BLOB_HDR_PART_LEN,
- store_len, MLOG_4BYTES, &mtr);
- mlog_write_ulint(page + FIL_PAGE_DATA
- + BTR_BLOB_HDR_NEXT_PAGE_NO,
- FIL_NULL, MLOG_4BYTES, &mtr);
-
- extern_len -= store_len;
-
- rec_page = buf_page_get(space_id,
- buf_frame_get_page_no(data),
- RW_X_LATCH, &mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(rec_page, SYNC_NO_ORDER_CHECK);
-#endif /* UNIV_SYNC_DEBUG */
- mlog_write_ulint(data + local_len + BTR_EXTERN_LEN, 0,
- MLOG_4BYTES, &mtr);
- mlog_write_ulint(data + local_len + BTR_EXTERN_LEN + 4,
- big_rec_vec->fields[i].len
- - extern_len,
- MLOG_4BYTES, &mtr);
-
- if (prev_page_no == FIL_NULL) {
- mlog_write_ulint(data + local_len
- + BTR_EXTERN_SPACE_ID,
- space_id,
- MLOG_4BYTES, &mtr);
-
- mlog_write_ulint(data + local_len
- + BTR_EXTERN_PAGE_NO,
- page_no,
- MLOG_4BYTES, &mtr);
-
- mlog_write_ulint(data + local_len
- + BTR_EXTERN_OFFSET,
- FIL_PAGE_DATA,
- MLOG_4BYTES, &mtr);
-
- /* Set the bit denoting that this field
- in rec is stored externally */
-
- rec_set_nth_field_extern_bit(rec, index,
- big_rec_vec->fields[i].field_no,
- TRUE, &mtr);
- }
-
- prev_page_no = page_no;
-
- mtr_commit(&mtr);
- }
- }
-
- return(DB_SUCCESS);
-}
-
-/***********************************************************************
-Frees the space in an externally stored field to the file space
-management if the field in data is owned the externally stored field,
-in a rollback we may have the additional condition that the field must
-not be inherited. */
-
-void
-btr_free_externally_stored_field(
-/*=============================*/
- dict_index_t* index, /* in: index of the data, the index
- tree MUST be X-latched; if the tree
- height is 1, then also the root page
- must be X-latched! (this is relevant
- in the case this function is called
- from purge where 'data' is located on
- an undo log page, not an index
- page) */
- byte* data, /* in: internally stored data
- + reference to the externally
- stored part */
- ulint local_len, /* in: length of data */
- ibool do_not_free_inherited,/* in: TRUE if called in a
- rollback and we do not want to free
- inherited fields */
- mtr_t* local_mtr __attribute__((unused))) /* in: mtr
- containing the latch to data an an
- X-latch to the index tree */
-{
- page_t* page;
- page_t* rec_page;
- ulint space_id;
- ulint page_no;
- ulint offset;
- ulint extern_len;
- ulint next_page_no;
- ulint part_len;
- mtr_t mtr;
-
- ut_a(local_len >= BTR_EXTERN_FIELD_REF_SIZE);
- ut_ad(mtr_memo_contains(local_mtr, dict_tree_get_lock(index->tree),
- MTR_MEMO_X_LOCK));
- ut_ad(mtr_memo_contains(local_mtr, buf_block_align(data),
- MTR_MEMO_PAGE_X_FIX));
- ut_a(local_len >= BTR_EXTERN_FIELD_REF_SIZE);
- local_len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- for (;;) {
- mtr_start(&mtr);
-
- rec_page = buf_page_get(buf_frame_get_space_id(data),
- buf_frame_get_page_no(data), RW_X_LATCH, &mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(rec_page, SYNC_NO_ORDER_CHECK);
-#endif /* UNIV_SYNC_DEBUG */
- space_id = mach_read_from_4(data + local_len
- + BTR_EXTERN_SPACE_ID);
-
- page_no = mach_read_from_4(data + local_len
- + BTR_EXTERN_PAGE_NO);
-
- offset = mach_read_from_4(data + local_len
- + BTR_EXTERN_OFFSET);
- extern_len = mach_read_from_4(data + local_len
- + BTR_EXTERN_LEN + 4);
-
- /* If extern len is 0, then there is no external storage data
- at all */
-
- if (extern_len == 0) {
-
- mtr_commit(&mtr);
-
- return;
- }
-
- if (mach_read_from_1(data + local_len + BTR_EXTERN_LEN)
- & BTR_EXTERN_OWNER_FLAG) {
- /* This field does not own the externally
- stored field: do not free! */
-
- mtr_commit(&mtr);
-
- return;
- }
-
- if (do_not_free_inherited
- && mach_read_from_1(data + local_len + BTR_EXTERN_LEN)
- & BTR_EXTERN_INHERITED_FLAG) {
- /* Rollback and inherited field: do not free! */
-
- mtr_commit(&mtr);
-
- return;
- }
-
- page = buf_page_get(space_id, page_no, RW_X_LATCH, &mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(page, SYNC_EXTERN_STORAGE);
-#endif /* UNIV_SYNC_DEBUG */
- next_page_no = mach_read_from_4(page + FIL_PAGE_DATA
- + BTR_BLOB_HDR_NEXT_PAGE_NO);
-
- part_len = btr_blob_get_part_len(page + FIL_PAGE_DATA);
-
- ut_a(extern_len >= part_len);
-
- /* We must supply the page level (= 0) as an argument
- because we did not store it on the page (we save the space
- overhead from an index page header. */
-
- btr_page_free_low(index->tree, page, 0, &mtr);
-
- mlog_write_ulint(data + local_len + BTR_EXTERN_PAGE_NO,
- next_page_no,
- MLOG_4BYTES, &mtr);
- mlog_write_ulint(data + local_len + BTR_EXTERN_LEN + 4,
- extern_len - part_len,
- MLOG_4BYTES, &mtr);
- if (next_page_no == FIL_NULL) {
- ut_a(extern_len - part_len == 0);
- }
-
- if (extern_len - part_len == 0) {
- ut_a(next_page_no == FIL_NULL);
- }
-
- mtr_commit(&mtr);
- }
-}
-
-/***************************************************************
-Frees the externally stored fields for a record. */
-
-void
-btr_rec_free_externally_stored_fields(
-/*==================================*/
- dict_index_t* index, /* in: index of the data, the index
- tree MUST be X-latched */
- rec_t* rec, /* in: record */
- const ulint* offsets,/* in: rec_get_offsets(rec, index) */
- ibool do_not_free_inherited,/* in: TRUE if called in a
- rollback and we do not want to free
- inherited fields */
- mtr_t* mtr) /* in: mini-transaction handle which contains
- an X-latch to record page and to the index
- tree */
-{
- ulint n_fields;
- byte* data;
- ulint len;
- ulint i;
-
- ut_ad(rec_offs_validate(rec, index, offsets));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(rec),
- MTR_MEMO_PAGE_X_FIX));
- /* Free possible externally stored fields in the record */
-
- ut_ad(index->table->comp == rec_offs_comp(offsets));
- n_fields = rec_offs_n_fields(offsets);
-
- for (i = 0; i < n_fields; i++) {
- if (rec_offs_nth_extern(offsets, i)) {
-
- data = rec_get_nth_field(rec, offsets, i, &len);
- btr_free_externally_stored_field(index, data, len,
- do_not_free_inherited, mtr);
- }
- }
-}
-
-/***************************************************************
-Frees the externally stored fields for a record, if the field is mentioned
-in the update vector. */
-static
-void
-btr_rec_free_updated_extern_fields(
-/*===============================*/
- dict_index_t* index, /* in: index of rec; the index tree MUST be
- X-latched */
- rec_t* rec, /* in: record */
- const ulint* offsets,/* in: rec_get_offsets(rec, index) */
- upd_t* update, /* in: update vector */
- ibool do_not_free_inherited,/* in: TRUE if called in a
- rollback and we do not want to free
- inherited fields */
- mtr_t* mtr) /* in: mini-transaction handle which contains
- an X-latch to record page and to the tree */
-{
- upd_field_t* ufield;
- ulint n_fields;
- byte* data;
- ulint len;
- ulint i;
-
- ut_ad(rec_offs_validate(rec, index, offsets));
- ut_ad(mtr_memo_contains(mtr, buf_block_align(rec),
- MTR_MEMO_PAGE_X_FIX));
-
- /* Free possible externally stored fields in the record */
-
- n_fields = upd_get_n_fields(update);
-
- for (i = 0; i < n_fields; i++) {
- ufield = upd_get_nth_field(update, i);
-
- if (rec_offs_nth_extern(offsets, ufield->field_no)) {
-
- data = rec_get_nth_field(rec, offsets,
- ufield->field_no, &len);
- btr_free_externally_stored_field(index, data, len,
- do_not_free_inherited, mtr);
- }
- }
-}
-
-/***********************************************************************
-Copies an externally stored field of a record to mem heap. Parameter
-data contains a pointer to 'internally' stored part of the field:
-possibly some data, and the reference to the externally stored part in
-the last 20 bytes of data. */
-
-byte*
-btr_copy_externally_stored_field(
-/*=============================*/
- /* out: the whole field copied to heap */
- ulint* len, /* out: length of the whole field */
- byte* data, /* in: 'internally' stored part of the
- field containing also the reference to
- the external part */
- ulint local_len,/* in: length of data */
- mem_heap_t* heap) /* in: mem heap */
-{
- page_t* page;
- ulint space_id;
- ulint page_no;
- ulint offset;
- ulint extern_len;
- byte* blob_header;
- ulint part_len;
- byte* buf;
- ulint copied_len;
- mtr_t mtr;
-
- ut_a(local_len >= BTR_EXTERN_FIELD_REF_SIZE);
-
- local_len -= BTR_EXTERN_FIELD_REF_SIZE;
-
- space_id = mach_read_from_4(data + local_len + BTR_EXTERN_SPACE_ID);
-
- page_no = mach_read_from_4(data + local_len + BTR_EXTERN_PAGE_NO);
-
- offset = mach_read_from_4(data + local_len + BTR_EXTERN_OFFSET);
-
- /* Currently a BLOB cannot be bigger that 4 GB; we
- leave the 4 upper bytes in the length field unused */
-
- extern_len = mach_read_from_4(data + local_len + BTR_EXTERN_LEN + 4);
-
- buf = mem_heap_alloc(heap, local_len + extern_len);
-
- ut_memcpy(buf, data, local_len);
- copied_len = local_len;
-
- if (extern_len == 0) {
- *len = copied_len;
-
- return(buf);
- }
-
- for (;;) {
- mtr_start(&mtr);
-
- page = buf_page_get(space_id, page_no, RW_S_LATCH, &mtr);
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(page, SYNC_EXTERN_STORAGE);
-#endif /* UNIV_SYNC_DEBUG */
- blob_header = page + offset;
-
- part_len = btr_blob_get_part_len(blob_header);
-
- ut_memcpy(buf + copied_len, blob_header + BTR_BLOB_HDR_SIZE,
- part_len);
- copied_len += part_len;
-
- page_no = btr_blob_get_next_page_no(blob_header);
-
- /* On other BLOB pages except the first the BLOB header
- always is at the page data start: */
-
- offset = FIL_PAGE_DATA;
-
- mtr_commit(&mtr);
-
- if (page_no == FIL_NULL) {
- ut_a(copied_len == local_len + extern_len);
-
- *len = copied_len;
-
- return(buf);
- }
-
- ut_a(copied_len < local_len + extern_len);
- }
-}
-
-/***********************************************************************
-Copies an externally stored field of a record to mem heap. */
-
-byte*
-btr_rec_copy_externally_stored_field(
-/*=================================*/
- /* out: the field copied to heap */
- rec_t* rec, /* in: record */
- const ulint* offsets,/* in: array returned by rec_get_offsets() */
- ulint no, /* in: field number */
- ulint* len, /* out: length of the field */
- mem_heap_t* heap) /* in: mem heap */
-{
- ulint local_len;
- byte* data;
-
- ut_ad(rec_offs_validate(rec, NULL, offsets));
- ut_a(rec_offs_nth_extern(offsets, no));
-
- /* An externally stored field can contain some initial
- data from the field, and in the last 20 bytes it has the
- space id, page number, and offset where the rest of the
- field data is stored, and the data length in addition to
- the data stored locally. We may need to store some data
- locally to get the local record length above the 128 byte
- limit so that field offsets are stored in two bytes, and
- the extern bit is available in those two bytes. */
-
- data = rec_get_nth_field(rec, offsets, no, &local_len);
-
- return(btr_copy_externally_stored_field(len, data, local_len, heap));
-}
diff --git a/innobase/btr/btr0pcur.c b/innobase/btr/btr0pcur.c
deleted file mode 100644
index ceaa4f41a18..00000000000
--- a/innobase/btr/btr0pcur.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/******************************************************
-The index tree persistent cursor
-
-(c) 1996 Innobase Oy
-
-Created 2/23/1996 Heikki Tuuri
-*******************************************************/
-
-#include "btr0pcur.h"
-
-#ifdef UNIV_NONINL
-#include "btr0pcur.ic"
-#endif
-
-#include "ut0byte.h"
-#include "rem0cmp.h"
-
-/******************************************************************
-Allocates memory for a persistent cursor object and initializes the cursor. */
-
-btr_pcur_t*
-btr_pcur_create_for_mysql(void)
-/*============================*/
- /* out, own: persistent cursor */
-{
- btr_pcur_t* pcur;
-
- pcur = mem_alloc(sizeof(btr_pcur_t));
-
- pcur->btr_cur.index = NULL;
- btr_pcur_init(pcur);
-
- return(pcur);
-}
-
-/******************************************************************
-Frees the memory for a persistent cursor object. */
-
-void
-btr_pcur_free_for_mysql(
-/*====================*/
- btr_pcur_t* cursor) /* in, own: persistent cursor */
-{
- if (cursor->old_rec_buf != NULL) {
-
- mem_free(cursor->old_rec_buf);
-
- cursor->old_rec_buf = NULL;
- }
-
- cursor->btr_cur.page_cur.rec = NULL;
- cursor->old_rec = NULL;
- cursor->old_n_fields = 0;
- cursor->old_stored = BTR_PCUR_OLD_NOT_STORED;
-
- cursor->latch_mode = BTR_NO_LATCHES;
- cursor->pos_state = BTR_PCUR_NOT_POSITIONED;
-
- mem_free(cursor);
-}
-
-/******************************************************************
-The position of the cursor is stored by taking an initial segment of the
-record the cursor is positioned on, before, or after, and copying it to the
-cursor data structure, or just setting a flag if the cursor id before the
-first in an EMPTY tree, or after the last in an EMPTY tree. NOTE that the
-page where the cursor is positioned must not be empty if the index tree is
-not totally empty! */
-
-void
-btr_pcur_store_position(
-/*====================*/
- btr_pcur_t* cursor, /* in: persistent cursor */
- mtr_t* mtr) /* in: mtr */
-{
- page_cur_t* page_cursor;
- rec_t* rec;
- dict_tree_t* tree;
- page_t* page;
-
- ut_a(cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_ad(cursor->latch_mode != BTR_NO_LATCHES);
-
- tree = btr_cur_get_tree(btr_pcur_get_btr_cur(cursor));
-
- page_cursor = btr_pcur_get_page_cur(cursor);
-
- rec = page_cur_get_rec(page_cursor);
- page = buf_frame_align(rec);
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_S_FIX)
- || mtr_memo_contains(mtr, buf_block_align(page),
- MTR_MEMO_PAGE_X_FIX));
- ut_a(cursor->latch_mode != BTR_NO_LATCHES);
-
- if (page_get_n_recs(page) == 0) {
- /* It must be an empty index tree; NOTE that in this case
- we do not store the modify_clock, but always do a search
- if we restore the cursor position */
-
- ut_a(btr_page_get_next(page, mtr) == FIL_NULL
- && btr_page_get_prev(page, mtr) == FIL_NULL);
-
- if (rec == page_get_supremum_rec(page)) {
-
- cursor->rel_pos = BTR_PCUR_AFTER_LAST_IN_TREE;
- cursor->old_stored = BTR_PCUR_OLD_STORED;
-
- return;
- }
-
- cursor->rel_pos = BTR_PCUR_BEFORE_FIRST_IN_TREE;
- cursor->old_stored = BTR_PCUR_OLD_STORED;
-
- return;
- }
-
- if (rec == page_get_supremum_rec(page)) {
-
- rec = page_rec_get_prev(rec);
-
- cursor->rel_pos = BTR_PCUR_AFTER;
-
- } else if (rec == page_get_infimum_rec(page)) {
-
- rec = page_rec_get_next(rec);
-
- cursor->rel_pos = BTR_PCUR_BEFORE;
- } else {
- cursor->rel_pos = BTR_PCUR_ON;
- }
-
- cursor->old_stored = BTR_PCUR_OLD_STORED;
- cursor->old_rec = dict_tree_copy_rec_order_prefix(tree, rec,
- &cursor->old_n_fields,
- &cursor->old_rec_buf,
- &cursor->buf_size);
-
- cursor->block_when_stored = buf_block_align(page);
- cursor->modify_clock = buf_frame_get_modify_clock(page);
-}
-
-/******************************************************************
-Copies the stored position of a pcur to another pcur. */
-
-void
-btr_pcur_copy_stored_position(
-/*==========================*/
- btr_pcur_t* pcur_receive, /* in: pcur which will receive the
- position info */
- btr_pcur_t* pcur_donate) /* in: pcur from which the info is
- copied */
-{
- if (pcur_receive->old_rec_buf) {
- mem_free(pcur_receive->old_rec_buf);
- }
-
- ut_memcpy((byte*)pcur_receive, (byte*)pcur_donate, sizeof(btr_pcur_t));
-
- if (pcur_donate->old_rec_buf) {
-
- pcur_receive->old_rec_buf = mem_alloc(pcur_donate->buf_size);
-
- ut_memcpy(pcur_receive->old_rec_buf, pcur_donate->old_rec_buf,
- pcur_donate->buf_size);
- pcur_receive->old_rec = pcur_receive->old_rec_buf
- + (pcur_donate->old_rec - pcur_donate->old_rec_buf);
- }
-
- pcur_receive->old_n_fields = pcur_donate->old_n_fields;
-}
-
-/******************************************************************
-Restores the stored position of a persistent cursor bufferfixing the page and
-obtaining the specified latches. If the cursor position was saved when the
-(1) cursor was positioned on a user record: this function restores the position
-to the last record LESS OR EQUAL to the stored record;
-(2) cursor was positioned on a page infimum record: restores the position to
-the last record LESS than the user record which was the successor of the page
-infimum;
-(3) cursor was positioned on the page supremum: restores to the first record
-GREATER than the user record which was the predecessor of the supremum.
-(4) cursor was positioned before the first or after the last in an empty tree:
-restores to before first or after the last in the tree. */
-
-ibool
-btr_pcur_restore_position(
-/*======================*/
- /* out: TRUE if the cursor position
- was stored when it was on a user record
- and it can be restored on a user record
- whose ordering fields are identical to
- the ones of the original user record */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
- btr_pcur_t* cursor, /* in: detached persistent cursor */
- mtr_t* mtr) /* in: mtr */
-{
- dict_tree_t* tree;
- page_t* page;
- dtuple_t* tuple;
- ulint mode;
- ulint old_mode;
- ibool from_left;
- mem_heap_t* heap;
-
- ut_a(cursor->pos_state == BTR_PCUR_WAS_POSITIONED
- || cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_a(cursor->old_stored == BTR_PCUR_OLD_STORED);
-
- if (cursor->rel_pos == BTR_PCUR_AFTER_LAST_IN_TREE
- || cursor->rel_pos == BTR_PCUR_BEFORE_FIRST_IN_TREE) {
-
- /* In these cases we do not try an optimistic restoration,
- but always do a search */
-
- if (cursor->rel_pos == BTR_PCUR_BEFORE_FIRST_IN_TREE) {
- from_left = TRUE;
- } else {
- from_left = FALSE;
- }
-
- btr_cur_open_at_index_side(from_left,
- btr_pcur_get_btr_cur(cursor)->index, latch_mode,
- btr_pcur_get_btr_cur(cursor), mtr);
-
- cursor->block_when_stored =
- buf_block_align(btr_pcur_get_page(cursor));
-
- return(FALSE);
- }
-
- ut_a(cursor->old_rec);
- ut_a(cursor->old_n_fields);
-
- page = btr_cur_get_page(btr_pcur_get_btr_cur(cursor));
-
- if (latch_mode == BTR_SEARCH_LEAF || latch_mode == BTR_MODIFY_LEAF) {
- /* Try optimistic restoration */
-
- if (buf_page_optimistic_get(latch_mode,
- cursor->block_when_stored, page,
- cursor->modify_clock, mtr)) {
- cursor->pos_state = BTR_PCUR_IS_POSITIONED;
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(page, SYNC_TREE_NODE);
-#endif /* UNIV_SYNC_DEBUG */
- if (cursor->rel_pos == BTR_PCUR_ON) {
-#ifdef UNIV_DEBUG
- rec_t* rec;
- ulint* offsets1;
- ulint* offsets2;
- dict_index_t* index;
-#endif /* UNIV_DEBUG */
- cursor->latch_mode = latch_mode;
-#ifdef UNIV_DEBUG
- rec = btr_pcur_get_rec(cursor);
- index = dict_tree_find_index(
- btr_cur_get_tree(
- btr_pcur_get_btr_cur(cursor)),
- rec);
-
- heap = mem_heap_create(256);
- offsets1 = rec_get_offsets(cursor->old_rec,
- index, NULL,
- cursor->old_n_fields, &heap);
- offsets2 = rec_get_offsets(rec, index, NULL,
- cursor->old_n_fields, &heap);
-
- ut_ad(cmp_rec_rec(cursor->old_rec,
- rec, offsets1, offsets2, index) == 0);
- mem_heap_free(heap);
-#endif /* UNIV_DEBUG */
- return(TRUE);
- }
-
- return(FALSE);
- }
- }
-
- /* If optimistic restoration did not succeed, open the cursor anew */
-
- heap = mem_heap_create(256);
-
- tree = btr_cur_get_tree(btr_pcur_get_btr_cur(cursor));
- tuple = dict_tree_build_data_tuple(tree, cursor->old_rec,
- cursor->old_n_fields, heap);
-
- /* Save the old search mode of the cursor */
- old_mode = cursor->search_mode;
-
- if (cursor->rel_pos == BTR_PCUR_ON) {
- mode = PAGE_CUR_LE;
- } else if (cursor->rel_pos == BTR_PCUR_AFTER) {
- mode = PAGE_CUR_G;
- } else {
- ut_ad(cursor->rel_pos == BTR_PCUR_BEFORE);
- mode = PAGE_CUR_L;
- }
-
- btr_pcur_open_with_no_init(btr_pcur_get_btr_cur(cursor)->index, tuple,
- mode, latch_mode, cursor, 0, mtr);
-
- /* Restore the old search mode */
- cursor->search_mode = old_mode;
-
- if (cursor->rel_pos == BTR_PCUR_ON
- && btr_pcur_is_on_user_rec(cursor, mtr)
- && 0 == cmp_dtuple_rec(tuple, btr_pcur_get_rec(cursor),
- rec_get_offsets(btr_pcur_get_rec(cursor),
- btr_pcur_get_btr_cur(cursor)->index,
- NULL, ULINT_UNDEFINED, &heap))) {
-
- /* We have to store the NEW value for the modify clock, since
- the cursor can now be on a different page! But we can retain
- the value of old_rec */
-
- cursor->modify_clock =
- buf_frame_get_modify_clock(btr_pcur_get_page(cursor));
-
- cursor->block_when_stored =
- buf_block_align(btr_pcur_get_page(cursor));
-
- cursor->old_stored = BTR_PCUR_OLD_STORED;
-
- mem_heap_free(heap);
-
- return(TRUE);
- }
-
- mem_heap_free(heap);
-
- /* We have to store new position information, modify_clock etc.,
- to the cursor because it can now be on a different page, the record
- under it may have been removed, etc. */
-
- btr_pcur_store_position(cursor, mtr);
-
- return(FALSE);
-}
-
-/******************************************************************
-If the latch mode of the cursor is BTR_LEAF_SEARCH or BTR_LEAF_MODIFY,
-releases the page latch and bufferfix reserved by the cursor.
-NOTE! In the case of BTR_LEAF_MODIFY, there should not exist changes
-made by the current mini-transaction to the data protected by the
-cursor latch, as then the latch must not be released until mtr_commit. */
-
-void
-btr_pcur_release_leaf(
-/*==================*/
- btr_pcur_t* cursor, /* in: persistent cursor */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
-
- ut_a(cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_ad(cursor->latch_mode != BTR_NO_LATCHES);
-
- page = btr_cur_get_page(btr_pcur_get_btr_cur(cursor));
-
- btr_leaf_page_release(page, cursor->latch_mode, mtr);
-
- cursor->latch_mode = BTR_NO_LATCHES;
-
- cursor->pos_state = BTR_PCUR_WAS_POSITIONED;
-}
-
-/*************************************************************
-Moves the persistent cursor to the first record on the next page. Releases the
-latch on the current page, and bufferunfixes it. Note that there must not be
-modifications on the current page, as then the x-latch can be released only in
-mtr_commit. */
-
-void
-btr_pcur_move_to_next_page(
-/*=======================*/
- btr_pcur_t* cursor, /* in: persistent cursor; must be on the
- last record of the current page */
- mtr_t* mtr) /* in: mtr */
-{
- ulint next_page_no;
- ulint space;
- page_t* page;
- page_t* next_page;
-
- ut_a(cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_ad(cursor->latch_mode != BTR_NO_LATCHES);
- ut_ad(btr_pcur_is_after_last_on_page(cursor, mtr));
-
- cursor->old_stored = BTR_PCUR_OLD_NOT_STORED;
-
- page = btr_pcur_get_page(cursor);
-
- next_page_no = btr_page_get_next(page, mtr);
- space = buf_frame_get_space_id(page);
-
- ut_ad(next_page_no != FIL_NULL);
-
- next_page = btr_page_get(space, next_page_no, cursor->latch_mode, mtr);
- ut_a(page_is_comp(next_page) == page_is_comp(page));
- buf_block_align(next_page)->check_index_page_at_flush = TRUE;
-
- btr_leaf_page_release(page, cursor->latch_mode, mtr);
-
- page_cur_set_before_first(next_page, btr_pcur_get_page_cur(cursor));
-
- page_check_dir(next_page);
-}
-
-/*************************************************************
-Moves the persistent cursor backward if it is on the first record of the page.
-Commits mtr. Note that to prevent a possible deadlock, the operation
-first stores the position of the cursor, commits mtr, acquires the necessary
-latches and restores the cursor position again before returning. The
-alphabetical position of the cursor is guaranteed to be sensible on
-return, but it may happen that the cursor is not positioned on the last
-record of any page, because the structure of the tree may have changed
-during the time when the cursor had no latches. */
-
-void
-btr_pcur_move_backward_from_page(
-/*=============================*/
- btr_pcur_t* cursor, /* in: persistent cursor, must be on the first
- record of the current page */
- mtr_t* mtr) /* in: mtr */
-{
- ulint prev_page_no;
- ulint space;
- page_t* page;
- page_t* prev_page;
- ulint latch_mode;
- ulint latch_mode2;
-
- ut_a(cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_ad(cursor->latch_mode != BTR_NO_LATCHES);
- ut_ad(btr_pcur_is_before_first_on_page(cursor, mtr));
- ut_ad(!btr_pcur_is_before_first_in_tree(cursor, mtr));
-
- latch_mode = cursor->latch_mode;
-
- if (latch_mode == BTR_SEARCH_LEAF) {
-
- latch_mode2 = BTR_SEARCH_PREV;
-
- } else if (latch_mode == BTR_MODIFY_LEAF) {
-
- latch_mode2 = BTR_MODIFY_PREV;
- } else {
- latch_mode2 = 0; /* To eliminate compiler warning */
- ut_error;
- }
-
- btr_pcur_store_position(cursor, mtr);
-
- mtr_commit(mtr);
-
- mtr_start(mtr);
-
- btr_pcur_restore_position(latch_mode2, cursor, mtr);
-
- page = btr_pcur_get_page(cursor);
-
- prev_page_no = btr_page_get_prev(page, mtr);
- space = buf_frame_get_space_id(page);
-
- if (btr_pcur_is_before_first_on_page(cursor, mtr)
- && (prev_page_no != FIL_NULL)) {
-
- prev_page = btr_pcur_get_btr_cur(cursor)->left_page;
-
- btr_leaf_page_release(page, latch_mode, mtr);
-
- page_cur_set_after_last(prev_page,
- btr_pcur_get_page_cur(cursor));
- } else if (prev_page_no != FIL_NULL) {
-
- /* The repositioned cursor did not end on an infimum record on
- a page. Cursor repositioning acquired a latch also on the
- previous page, but we do not need the latch: release it. */
-
- prev_page = btr_pcur_get_btr_cur(cursor)->left_page;
-
- btr_leaf_page_release(prev_page, latch_mode, mtr);
- }
-
- cursor->latch_mode = latch_mode;
-
- cursor->old_stored = BTR_PCUR_OLD_NOT_STORED;
-}
-
-/*************************************************************
-Moves the persistent cursor to the previous record in the tree. If no records
-are left, the cursor stays 'before first in tree'. */
-
-ibool
-btr_pcur_move_to_prev(
-/*==================*/
- /* out: TRUE if the cursor was not before first
- in tree */
- btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the
- function may release the page latch */
- mtr_t* mtr) /* in: mtr */
-{
- ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED);
- ut_ad(cursor->latch_mode != BTR_NO_LATCHES);
-
- cursor->old_stored = BTR_PCUR_OLD_NOT_STORED;
-
- if (btr_pcur_is_before_first_on_page(cursor, mtr)) {
-
- if (btr_pcur_is_before_first_in_tree(cursor, mtr)) {
-
- return(FALSE);
- }
-
- btr_pcur_move_backward_from_page(cursor, mtr);
-
- return(TRUE);
- }
-
- btr_pcur_move_to_prev_on_page(cursor, mtr);
-
- return(TRUE);
-}
-
-/******************************************************************
-If mode is PAGE_CUR_G or PAGE_CUR_GE, opens a persistent cursor on the first
-user record satisfying the search condition, in the case PAGE_CUR_L or
-PAGE_CUR_LE, on the last user record. If no such user record exists, then
-in the first case sets the cursor after last in tree, and in the latter case
-before first in tree. The latching mode must be BTR_SEARCH_LEAF or
-BTR_MODIFY_LEAF. */
-
-void
-btr_pcur_open_on_user_rec(
-/*======================*/
- dict_index_t* index, /* in: index */
- dtuple_t* tuple, /* in: tuple on which search done */
- ulint mode, /* in: PAGE_CUR_L, ... */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF or
- BTR_MODIFY_LEAF */
- btr_pcur_t* cursor, /* in: memory buffer for persistent
- cursor */
- mtr_t* mtr) /* in: mtr */
-{
- btr_pcur_open(index, tuple, mode, latch_mode, cursor, mtr);
-
- if ((mode == PAGE_CUR_GE) || (mode == PAGE_CUR_G)) {
-
- if (btr_pcur_is_after_last_on_page(cursor, mtr)) {
-
- btr_pcur_move_to_next_user_rec(cursor, mtr);
- }
- } else {
- ut_ad((mode == PAGE_CUR_LE) || (mode == PAGE_CUR_L));
-
- /* Not implemented yet */
-
- ut_error;
- }
-}
diff --git a/innobase/btr/btr0sea.c b/innobase/btr/btr0sea.c
deleted file mode 100644
index 97fdce2df75..00000000000
--- a/innobase/btr/btr0sea.c
+++ /dev/null
@@ -1,1670 +0,0 @@
-/************************************************************************
-The index tree adaptive search
-
-(c) 1996 Innobase Oy
-
-Created 2/17/1996 Heikki Tuuri
-*************************************************************************/
-
-#include "btr0sea.h"
-#ifdef UNIV_NONINL
-#include "btr0sea.ic"
-#endif
-
-#include "buf0buf.h"
-#include "page0page.h"
-#include "page0cur.h"
-#include "btr0cur.h"
-#include "btr0pcur.h"
-#include "btr0btr.h"
-#include "ha0ha.h"
-
-ulint btr_search_this_is_zero = 0; /* A dummy variable to fool the
- compiler */
-
-#ifdef UNIV_SEARCH_PERF_STAT
-ulint btr_search_n_succ = 0;
-#endif /* UNIV_SEARCH_PERF_STAT */
-ulint btr_search_n_hash_fail = 0;
-
-byte btr_sea_pad1[64]; /* padding to prevent other memory update
- hotspots from residing on the same memory
- cache line as btr_search_latch */
-
-/* The latch protecting the adaptive search system: this latch protects the
-(1) positions of records on those pages where a hash index has been built.
-NOTE: It does not protect values of non-ordering fields within a record from
-being updated in-place! We can use fact (1) to perform unique searches to
-indexes. */
-
-rw_lock_t* btr_search_latch_temp; /* We will allocate the latch from
- dynamic memory to get it to the
- same DRAM page as other hotspot
- semaphores */
-
-byte btr_sea_pad2[64]; /* padding to prevent other memory update
- hotspots from residing on the same memory
- cache line */
-
-btr_search_sys_t* btr_search_sys;
-
-/* If the number of records on the page divided by this parameter
-would have been successfully accessed using a hash index, the index
-is then built on the page, assuming the global limit has been reached */
-
-#define BTR_SEARCH_PAGE_BUILD_LIMIT 16
-
-/* The global limit for consecutive potentially successful hash searches,
-before hash index building is started */
-
-#define BTR_SEARCH_BUILD_LIMIT 100
-
-/************************************************************************
-Builds a hash index on a page with the given parameters. If the page already
-has a hash index with different parameters, the old hash index is removed.
-If index is non-NULL, this function checks if n_fields and n_bytes are
-sensible values, and does not build a hash index if not. */
-static
-void
-btr_search_build_page_hash_index(
-/*=============================*/
- dict_index_t* index, /* in: index for which to build, or NULL if
- not known */
- page_t* page, /* in: index page, s- or x-latched */
- ulint n_fields,/* in: hash this many full fields */
- ulint n_bytes,/* in: hash this many bytes from the next
- field */
- ulint side); /* in: hash for searches from this side */
-
-/*********************************************************************
-This function should be called before reserving any btr search mutex, if
-the intended operation might add nodes to the search system hash table.
-Because of the latching order, once we have reserved the btr search system
-latch, we cannot allocate a free frame from the buffer pool. Checks that
-there is a free buffer frame allocated for hash table heap in the btr search
-system. If not, allocates a free frames for the heap. This check makes it
-probable that, when have reserved the btr search system latch and we need to
-allocate a new node to the hash table, it will succeed. However, the check
-will not guarantee success. */
-static
-void
-btr_search_check_free_space_in_heap(void)
-/*=====================================*/
-{
- buf_frame_t* frame;
- hash_table_t* table;
- mem_heap_t* heap;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- table = btr_search_sys->hash_index;
-
- heap = table->heap;
-
- /* Note that we peek the value of heap->free_block without reserving
- the latch: this is ok, because we will not guarantee that there will
- be enough free space in the hash table. */
-
- if (heap->free_block == NULL) {
- frame = buf_frame_alloc();
-
- rw_lock_x_lock(&btr_search_latch);
-
- if (heap->free_block == NULL) {
- heap->free_block = frame;
- } else {
- buf_frame_free(frame);
- }
-
- rw_lock_x_unlock(&btr_search_latch);
- }
-}
-
-/*********************************************************************
-Creates and initializes the adaptive search system at a database start. */
-
-void
-btr_search_sys_create(
-/*==================*/
- ulint hash_size) /* in: hash index hash table size */
-{
- /* We allocate the search latch from dynamic memory:
- see above at the global variable definition */
-
- btr_search_latch_temp = mem_alloc(sizeof(rw_lock_t));
-
- rw_lock_create(&btr_search_latch);
-
- btr_search_sys = mem_alloc(sizeof(btr_search_sys_t));
-
- btr_search_sys->hash_index = ha_create(TRUE, hash_size, 0, 0);
-
- rw_lock_set_level(&btr_search_latch, SYNC_SEARCH_SYS);
-}
-
-/*********************************************************************
-Creates and initializes a search info struct. */
-
-btr_search_t*
-btr_search_info_create(
-/*===================*/
- /* out, own: search info struct */
- mem_heap_t* heap) /* in: heap where created */
-{
- btr_search_t* info;
-
- info = mem_heap_alloc(heap, sizeof(btr_search_t));
-
- info->magic_n = BTR_SEARCH_MAGIC_N;
-
- info->last_search = NULL;
- info->n_direction = 0;
- info->root_guess = NULL;
-
- info->hash_analysis = 0;
- info->n_hash_potential = 0;
-
- info->last_hash_succ = FALSE;
-
- info->n_hash_succ = 0;
- info->n_hash_fail = 0;
- info->n_patt_succ = 0;
- info->n_searches = 0;
-
- /* Set some sensible values */
- info->n_fields = 1;
- info->n_bytes = 0;
-
- info->side = BTR_SEARCH_LEFT_SIDE;
-
- return(info);
-}
-
-/*************************************************************************
-Updates the search info of an index about hash successes. NOTE that info
-is NOT protected by any semaphore, to save CPU time! Do not assume its fields
-are consistent. */
-static
-void
-btr_search_info_update_hash(
-/*========================*/
- btr_search_t* info, /* in: search info */
- btr_cur_t* cursor) /* in: cursor which was just positioned */
-{
- dict_index_t* index;
- ulint n_unique;
- int cmp;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- index = cursor->index;
-
- if (index->type & DICT_IBUF) {
- /* So many deletes are performed on an insert buffer tree
- that we do not consider a hash index useful on it: */
-
- return;
- }
-
- n_unique = dict_index_get_n_unique_in_tree(index);
-
- if (info->n_hash_potential == 0) {
-
- goto set_new_recomm;
- }
-
- /* Test if the search would have succeeded using the recommended
- hash prefix */
-
- if (info->n_fields >= n_unique && cursor->up_match >= n_unique) {
-
- info->n_hash_potential++;
-
- return;
- }
-
- cmp = ut_pair_cmp(info->n_fields, info->n_bytes,
- cursor->low_match, cursor->low_bytes);
-
- if ((info->side == BTR_SEARCH_LEFT_SIDE && cmp <= 0)
- || (info->side == BTR_SEARCH_RIGHT_SIDE && cmp > 0)) {
-
- goto set_new_recomm;
- }
-
- cmp = ut_pair_cmp(info->n_fields, info->n_bytes,
- cursor->up_match, cursor->up_bytes);
-
- if ((info->side == BTR_SEARCH_LEFT_SIDE && cmp > 0)
- || (info->side == BTR_SEARCH_RIGHT_SIDE && cmp <= 0)) {
-
- goto set_new_recomm;
- }
-
- info->n_hash_potential++;
-
- return;
-
-set_new_recomm:
- /* We have to set a new recommendation; skip the hash analysis
- for a while to avoid unnecessary CPU time usage when there is no
- chance for success */
-
- info->hash_analysis = 0;
-
- cmp = ut_pair_cmp(cursor->up_match, cursor->up_bytes,
- cursor->low_match, cursor->low_bytes);
- if (cmp == 0) {
- info->n_hash_potential = 0;
-
- /* For extra safety, we set some sensible values here */
-
- info->n_fields = 1;
- info->n_bytes = 0;
-
- info->side = BTR_SEARCH_LEFT_SIDE;
-
- } else if (cmp > 0) {
- info->n_hash_potential = 1;
-
- if (cursor->up_match >= n_unique) {
-
- info->n_fields = n_unique;
- info->n_bytes = 0;
-
- } else if (cursor->low_match < cursor->up_match) {
-
- info->n_fields = cursor->low_match + 1;
- info->n_bytes = 0;
- } else {
- info->n_fields = cursor->low_match;
- info->n_bytes = cursor->low_bytes + 1;
- }
-
- info->side = BTR_SEARCH_LEFT_SIDE;
- } else {
- info->n_hash_potential = 1;
-
- if (cursor->low_match >= n_unique) {
-
- info->n_fields = n_unique;
- info->n_bytes = 0;
-
- } else if (cursor->low_match > cursor->up_match) {
-
- info->n_fields = cursor->up_match + 1;
- info->n_bytes = 0;
- } else {
- info->n_fields = cursor->up_match;
- info->n_bytes = cursor->up_bytes + 1;
- }
-
- info->side = BTR_SEARCH_RIGHT_SIDE;
- }
-}
-
-/*************************************************************************
-Updates the block search info on hash successes. NOTE that info and
-block->n_hash_helps, n_fields, n_bytes, side are NOT protected by any
-semaphore, to save CPU time! Do not assume the fields are consistent. */
-static
-ibool
-btr_search_update_block_hash_info(
-/*==============================*/
- /* out: TRUE if building a (new) hash index on
- the block is recommended */
- btr_search_t* info, /* in: search info */
- buf_block_t* block, /* in: buffer block */
- btr_cur_t* cursor) /* in: cursor */
-{
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
- ut_ad(rw_lock_own(&((buf_block_t*) block)->lock, RW_LOCK_SHARED)
- || rw_lock_own(&((buf_block_t*) block)->lock, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
- ut_ad(cursor);
-
- info->last_hash_succ = FALSE;
-
- ut_a(block->magic_n == BUF_BLOCK_MAGIC_N);
- ut_a(info->magic_n == BTR_SEARCH_MAGIC_N);
-
- if ((block->n_hash_helps > 0)
- && (info->n_hash_potential > 0)
- && (block->n_fields == info->n_fields)
- && (block->n_bytes == info->n_bytes)
- && (block->side == info->side)) {
-
- if ((block->is_hashed)
- && (block->curr_n_fields == info->n_fields)
- && (block->curr_n_bytes == info->n_bytes)
- && (block->curr_side == info->side)) {
-
- /* The search would presumably have succeeded using
- the hash index */
-
- info->last_hash_succ = TRUE;
- }
-
- block->n_hash_helps++;
- } else {
- block->n_hash_helps = 1;
- block->n_fields = info->n_fields;
- block->n_bytes = info->n_bytes;
- block->side = info->side;
- }
-
- if (cursor->index->table->does_not_fit_in_memory) {
- block->n_hash_helps = 0;
- }
-
- if ((block->n_hash_helps > page_get_n_recs(block->frame)
- / BTR_SEARCH_PAGE_BUILD_LIMIT)
- && (info->n_hash_potential >= BTR_SEARCH_BUILD_LIMIT)) {
-
- if ((!block->is_hashed)
- || (block->n_hash_helps
- > 2 * page_get_n_recs(block->frame))
- || (block->n_fields != block->curr_n_fields)
- || (block->n_bytes != block->curr_n_bytes)
- || (block->side != block->curr_side)) {
-
- /* Build a new hash index on the page */
-
- return(TRUE);
- }
- }
-
- return(FALSE);
-}
-
-/*************************************************************************
-Updates a hash node reference when it has been unsuccessfully used in a
-search which could have succeeded with the used hash parameters. This can
-happen because when building a hash index for a page, we do not check
-what happens at page boundaries, and therefore there can be misleading
-hash nodes. Also, collisions in the fold value can lead to misleading
-references. This function lazily fixes these imperfections in the hash
-index. */
-static
-void
-btr_search_update_hash_ref(
-/*=======================*/
- btr_search_t* info, /* in: search info */
- buf_block_t* block, /* in: buffer block where cursor positioned */
- btr_cur_t* cursor) /* in: cursor */
-{
- ulint fold;
- rec_t* rec;
- dulint tree_id;
-
- ut_ad(cursor->flag == BTR_CUR_HASH_FAIL);
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&btr_search_latch, RW_LOCK_EX));
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_SHARED)
- || rw_lock_own(&(block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
- ut_ad(buf_block_align(btr_cur_get_rec(cursor)) == block);
- ut_a(!block->is_hashed || block->index == cursor->index);
-
- if (block->is_hashed
- && (info->n_hash_potential > 0)
- && (block->curr_n_fields == info->n_fields)
- && (block->curr_n_bytes == info->n_bytes)
- && (block->curr_side == info->side)) {
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- rec = btr_cur_get_rec(cursor);
-
- if (!page_rec_is_user_rec(rec)) {
-
- return;
- }
-
- tree_id = ((cursor->index)->tree)->id;
- fold = rec_fold(rec, rec_get_offsets(rec, cursor->index,
- offsets_, ULINT_UNDEFINED, &heap),
- block->curr_n_fields,
- block->curr_n_bytes, tree_id);
- if (heap) {
- mem_heap_free(heap);
- }
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&btr_search_latch, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- ha_insert_for_fold(btr_search_sys->hash_index, fold, rec);
- }
-}
-
-/*************************************************************************
-Updates the search info. */
-
-void
-btr_search_info_update_slow(
-/*========================*/
- btr_search_t* info, /* in: search info */
- btr_cur_t* cursor) /* in: cursor which was just positioned */
-{
- buf_block_t* block;
- ibool build_index;
- ulint* params;
- ulint* params2;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- block = buf_block_align(btr_cur_get_rec(cursor));
-
- /* NOTE that the following two function calls do NOT protect
- info or block->n_fields etc. with any semaphore, to save CPU time!
- We cannot assume the fields are consistent when we return from
- those functions! */
-
- btr_search_info_update_hash(info, cursor);
-
- build_index = btr_search_update_block_hash_info(info, block, cursor);
-
- if (build_index || (cursor->flag == BTR_CUR_HASH_FAIL)) {
-
- btr_search_check_free_space_in_heap();
- }
-
- if (cursor->flag == BTR_CUR_HASH_FAIL) {
- /* Update the hash node reference, if appropriate */
-
- btr_search_n_hash_fail++;
-
- rw_lock_x_lock(&btr_search_latch);
-
- btr_search_update_hash_ref(info, block, cursor);
-
- rw_lock_x_unlock(&btr_search_latch);
- }
-
- if (build_index) {
- /* Note that since we did not protect block->n_fields etc.
- with any semaphore, the values can be inconsistent. We have
- to check inside the function call that they make sense. We
- also malloc an array and store the values there to make sure
- the compiler does not let the function call parameters change
- inside the called function. It might be that the compiler
- would optimize the call just to pass pointers to block. */
-
- params = mem_alloc(3 * sizeof(ulint));
- params[0] = block->n_fields;
- params[1] = block->n_bytes;
- params[2] = block->side;
-
- /* Make sure the compiler cannot deduce the values and do
- optimizations */
-
- params2 = params + btr_search_this_is_zero;
-
- btr_search_build_page_hash_index(cursor->index,
- block->frame,
- params2[0],
- params2[1],
- params2[2]);
- mem_free(params);
- }
-}
-
-/**********************************************************************
-Checks if a guessed position for a tree cursor is right. Note that if
-mode is PAGE_CUR_LE, which is used in inserts, and the function returns
-TRUE, then cursor->up_match and cursor->low_match both have sensible values. */
-static
-ibool
-btr_search_check_guess(
-/*===================*/
- /* out: TRUE if success */
- btr_cur_t* cursor, /* in: guessed cursor position */
- ibool can_only_compare_to_cursor_rec,
- /* in: if we do not have a latch on the page
- of cursor, but only a latch on
- btr_search_latch, then ONLY the columns
- of the record UNDER the cursor are
- protected, not the next or previous record
- in the chain: we cannot look at the next or
- previous record to check our guess! */
- dtuple_t* tuple, /* in: data tuple */
- ulint mode, /* in: PAGE_CUR_L, PAGE_CUR_LE, PAGE_CUR_G,
- or PAGE_CUR_GE */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
- rec_t* rec;
- rec_t* prev_rec;
- rec_t* next_rec;
- ulint n_unique;
- ulint match;
- ulint bytes;
- int cmp;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- ibool success = FALSE;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- n_unique = dict_index_get_n_unique_in_tree(cursor->index);
-
- rec = btr_cur_get_rec(cursor);
- page = buf_frame_align(rec);
-
- ut_ad(page_rec_is_user_rec(rec));
-
- match = 0;
- bytes = 0;
-
- offsets = rec_get_offsets(rec, cursor->index, offsets,
- n_unique, &heap);
- cmp = page_cmp_dtuple_rec_with_match(tuple, rec,
- offsets, &match, &bytes);
-
- if (mode == PAGE_CUR_GE) {
- if (cmp == 1) {
- goto exit_func;
- }
-
- cursor->up_match = match;
-
- if (match >= n_unique) {
- success = TRUE;
- goto exit_func;
- }
- } else if (mode == PAGE_CUR_LE) {
- if (cmp == -1) {
- goto exit_func;
- }
-
- cursor->low_match = match;
-
- } else if (mode == PAGE_CUR_G) {
- if (cmp != -1) {
- goto exit_func;
- }
- } else if (mode == PAGE_CUR_L) {
- if (cmp != 1) {
- goto exit_func;
- }
- }
-
- if (can_only_compare_to_cursor_rec) {
- /* Since we could not determine if our guess is right just by
- looking at the record under the cursor, return FALSE */
- goto exit_func;
- }
-
- match = 0;
- bytes = 0;
-
- if ((mode == PAGE_CUR_G) || (mode == PAGE_CUR_GE)) {
-
- ut_ad(rec != page_get_infimum_rec(page));
-
- prev_rec = page_rec_get_prev(rec);
-
- if (prev_rec == page_get_infimum_rec(page)) {
- success = btr_page_get_prev(page, mtr) == FIL_NULL;
- goto exit_func;
- }
-
- offsets = rec_get_offsets(prev_rec, cursor->index, offsets,
- n_unique, &heap);
- cmp = page_cmp_dtuple_rec_with_match(tuple, prev_rec,
- offsets, &match, &bytes);
- if (mode == PAGE_CUR_GE) {
- success = cmp == 1;
- } else {
- success = cmp != -1;
- }
-
- goto exit_func;
- }
-
- ut_ad(rec != page_get_supremum_rec(page));
-
- next_rec = page_rec_get_next(rec);
-
- if (next_rec == page_get_supremum_rec(page)) {
- if (btr_page_get_next(page, mtr) == FIL_NULL) {
-
- cursor->up_match = 0;
- success = TRUE;
- }
-
- goto exit_func;
- }
-
- offsets = rec_get_offsets(next_rec, cursor->index, offsets,
- n_unique, &heap);
- cmp = page_cmp_dtuple_rec_with_match(tuple, next_rec,
- offsets, &match, &bytes);
- if (mode == PAGE_CUR_LE) {
- success = cmp == -1;
- cursor->up_match = match;
- } else {
- success = cmp != 1;
- }
-exit_func:
- if (heap) {
- mem_heap_free(heap);
- }
- return(success);
-}
-
-/**********************************************************************
-Tries to guess the right search position based on the hash search info
-of the index. Note that if mode is PAGE_CUR_LE, which is used in inserts,
-and the function returns TRUE, then cursor->up_match and cursor->low_match
-both have sensible values. */
-
-ibool
-btr_search_guess_on_hash(
-/*=====================*/
- /* out: TRUE if succeeded */
- dict_index_t* index, /* in: index */
- btr_search_t* info, /* in: index search info */
- dtuple_t* tuple, /* in: logical record */
- ulint mode, /* in: PAGE_CUR_L, ... */
- ulint latch_mode, /* in: BTR_SEARCH_LEAF, ...;
- NOTE that only if has_search_latch
- is 0, we will have a latch set on
- the cursor page, otherwise we assume
- the caller uses his search latch
- to protect the record! */
- btr_cur_t* cursor, /* out: tree cursor */
- ulint has_search_latch,/* in: latch mode the caller
- currently has on btr_search_latch:
- RW_S_LATCH, RW_X_LATCH, or 0 */
- mtr_t* mtr) /* in: mtr */
-{
- buf_block_t* block;
- rec_t* rec;
- page_t* page;
- ibool success;
- ulint fold;
- ulint tuple_n_fields;
- dulint tree_id;
- ibool can_only_compare_to_cursor_rec = TRUE;
-#ifdef notdefined
- btr_cur_t cursor2;
- btr_pcur_t pcur;
-#endif
- ut_ad(index && info && tuple && cursor && mtr);
- ut_ad((latch_mode == BTR_SEARCH_LEAF)
- || (latch_mode == BTR_MODIFY_LEAF));
-
- /* Note that, for efficiency, the struct info may not be protected by
- any latch here! */
-
- if (info->n_hash_potential == 0) {
-
- return(FALSE);
- }
-
- cursor->n_fields = info->n_fields;
- cursor->n_bytes = info->n_bytes;
-
- tuple_n_fields = dtuple_get_n_fields(tuple);
-
- if (tuple_n_fields < cursor->n_fields) {
-
- return(FALSE);
- }
-
- if ((cursor->n_bytes > 0) && (tuple_n_fields <= cursor->n_fields)) {
-
- return(FALSE);
- }
-
- tree_id = (index->tree)->id;
-
-#ifdef UNIV_SEARCH_PERF_STAT
- info->n_hash_succ++;
-#endif
- fold = dtuple_fold(tuple, cursor->n_fields, cursor->n_bytes, tree_id);
-
- cursor->fold = fold;
- cursor->flag = BTR_CUR_HASH;
-
- if (!has_search_latch) {
- rw_lock_s_lock(&btr_search_latch);
- }
-
- ut_a(btr_search_latch.writer != RW_LOCK_EX);
- ut_a(btr_search_latch.reader_count > 0);
-
- rec = ha_search_and_get_data(btr_search_sys->hash_index, fold);
-
- if (!rec) {
- if (!has_search_latch) {
- rw_lock_s_unlock(&btr_search_latch);
- }
-
- goto failure;
- }
-
- page = buf_frame_align(rec);
-
- if (!has_search_latch) {
-
- success = buf_page_get_known_nowait(latch_mode, page,
- BUF_MAKE_YOUNG,
- __FILE__, __LINE__,
- mtr);
-
- rw_lock_s_unlock(&btr_search_latch);
-
- if (!success) {
-
- goto failure;
- }
-
- can_only_compare_to_cursor_rec = FALSE;
-
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(page, SYNC_TREE_NODE_FROM_HASH);
-#endif /* UNIV_SYNC_DEBUG */
- }
-
- block = buf_block_align(page);
-
- if (block->state == BUF_BLOCK_REMOVE_HASH) {
- if (!has_search_latch) {
-
- btr_leaf_page_release(page, latch_mode, mtr);
- }
-
- goto failure;
- }
-
- ut_a(block->state == BUF_BLOCK_FILE_PAGE);
- ut_a(page_rec_is_user_rec(rec));
-
- btr_cur_position(index, rec, cursor);
-
- /* Check the validity of the guess within the page */
-
- if (0 != ut_dulint_cmp(tree_id, btr_page_get_index_id(page))) {
-
- success = FALSE;
-/*
- fprintf(stderr, "Tree id %lu, page index id %lu fold %lu\n",
- ut_dulint_get_low(tree_id),
- ut_dulint_get_low(btr_page_get_index_id(page)),
- fold);
-*/
- } else {
- /* If we only have the latch on btr_search_latch, not on the
- page, it only protects the columns of the record the cursor
- is positioned on. We cannot look at the next of the previous
- record to determine if our guess for the cursor position is
- right. */
-
- success = btr_search_check_guess(cursor,
- can_only_compare_to_cursor_rec,
- tuple, mode, mtr);
- }
-
- if (!success) {
- if (!has_search_latch) {
- btr_leaf_page_release(page, latch_mode, mtr);
- }
-
- goto failure;
- }
-
- if (info->n_hash_potential < BTR_SEARCH_BUILD_LIMIT + 5) {
-
- info->n_hash_potential++;
- }
-
- if (info->last_hash_succ != TRUE) {
- info->last_hash_succ = TRUE;
- }
-
-#ifdef notdefined
- /* These lines of code can be used in a debug version to check
- the correctness of the searched cursor position: */
-
- info->last_hash_succ = FALSE;
-
- /* Currently, does not work if the following fails: */
- ut_a(!has_search_latch);
-
- btr_leaf_page_release(page, latch_mode, mtr);
-
- btr_cur_search_to_nth_level(index, 0, tuple, mode, latch_mode,
- &cursor2, 0, mtr);
- if (mode == PAGE_CUR_GE
- && btr_cur_get_rec(&cursor2) == page_get_supremum_rec(
- buf_frame_align(btr_cur_get_rec(&cursor2)))) {
-
- /* If mode is PAGE_CUR_GE, then the binary search
- in the index tree may actually take us to the supremum
- of the previous page */
-
- info->last_hash_succ = FALSE;
-
- btr_pcur_open_on_user_rec(index, tuple, mode, latch_mode,
- &pcur, mtr);
- ut_a(btr_pcur_get_rec(&pcur) == btr_cur_get_rec(cursor));
- } else {
- ut_a(btr_cur_get_rec(&cursor2) == btr_cur_get_rec(cursor));
- }
-
- /* NOTE that it is theoretically possible that the above assertions
- fail if the page of the cursor gets removed from the buffer pool
- meanwhile! Thus it might not be a bug. */
-
- info->last_hash_succ = TRUE;
-#endif
-
-#ifdef UNIV_SEARCH_PERF_STAT
- btr_search_n_succ++;
-#endif
- if (!has_search_latch && buf_block_peek_if_too_old(block)) {
-
- buf_page_make_young(page);
- }
-
- /* Increment the page get statistics though we did not really
- fix the page: for user info only */
-
- buf_pool->n_page_gets++;
-
- return(TRUE);
-
- /*-------------------------------------------*/
-failure:
- info->n_hash_fail++;
-
- cursor->flag = BTR_CUR_HASH_FAIL;
-
-#ifdef UNIV_SEARCH_PERF_STAT
- if (info->n_hash_succ > 0) {
- info->n_hash_succ--;
- }
-#endif
- info->last_hash_succ = FALSE;
-
- return(FALSE);
-}
-
-/************************************************************************
-Drops a page hash index. */
-
-void
-btr_search_drop_page_hash_index(
-/*============================*/
- page_t* page) /* in: index page, s- or x-latched */
-{
- hash_table_t* table;
- buf_block_t* block;
- ulint n_fields;
- ulint n_bytes;
- rec_t* rec;
- rec_t* sup;
- ulint fold;
- ulint prev_fold;
- dulint tree_id;
- ulint n_cached;
- ulint n_recs;
- ulint* folds;
- ulint i;
- mem_heap_t* heap;
- ulint* offsets;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- rw_lock_s_lock(&btr_search_latch);
-
- block = buf_block_align(page);
-
- if (!block->is_hashed) {
-
- rw_lock_s_unlock(&btr_search_latch);
-
- return;
- }
-
- table = btr_search_sys->hash_index;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_SHARED)
- || rw_lock_own(&(block->lock), RW_LOCK_EX)
- || (block->buf_fix_count == 0));
-#endif /* UNIV_SYNC_DEBUG */
-
- n_fields = block->curr_n_fields;
- n_bytes = block->curr_n_bytes;
-
- ut_a(n_fields + n_bytes > 0);
-
- rw_lock_s_unlock(&btr_search_latch);
-
- n_recs = page_get_n_recs(page);
-
- /* Calculate and cache fold values into an array for fast deletion
- from the hash index */
-
- folds = mem_alloc(n_recs * sizeof(ulint));
-
- n_cached = 0;
-
- sup = page_get_supremum_rec(page);
-
- rec = page_get_infimum_rec(page);
- rec = page_rec_get_next(rec);
-
- if (rec != sup) {
- ut_a(n_fields <= rec_get_n_fields(rec, block->index));
-
- if (n_bytes > 0) {
- ut_a(n_fields < rec_get_n_fields(rec, block->index));
- }
- }
-
- tree_id = btr_page_get_index_id(page);
-
- prev_fold = 0;
-
- heap = NULL;
- offsets = NULL;
-
- while (rec != sup) {
- /* FIXME: in a mixed tree, not all records may have enough
- ordering fields: */
- offsets = rec_get_offsets(rec, block->index,
- offsets, n_fields + (n_bytes > 0), &heap);
- fold = rec_fold(rec, offsets, n_fields, n_bytes, tree_id);
-
- if (fold == prev_fold && prev_fold != 0) {
-
- goto next_rec;
- }
-
- /* Remove all hash nodes pointing to this page from the
- hash chain */
-
- folds[n_cached] = fold;
- n_cached++;
-next_rec:
- rec = page_rec_get_next(rec);
- prev_fold = fold;
- }
-
- if (heap) {
- mem_heap_free(heap);
- }
-
- rw_lock_x_lock(&btr_search_latch);
-
- for (i = 0; i < n_cached; i++) {
-
- ha_remove_all_nodes_to_page(table, folds[i], page);
- }
-
- block->is_hashed = FALSE;
- block->index = NULL;
-
- rw_lock_x_unlock(&btr_search_latch);
-
- mem_free(folds);
-}
-
-/************************************************************************
-Drops a page hash index when a page is freed from a fseg to the file system.
-Drops possible hash index if the page happens to be in the buffer pool. */
-
-void
-btr_search_drop_page_hash_when_freed(
-/*=================================*/
- ulint space, /* in: space id */
- ulint page_no) /* in: page number */
-{
- ibool is_hashed;
- page_t* page;
- mtr_t mtr;
-
- is_hashed = buf_page_peek_if_search_hashed(space, page_no);
-
- if (!is_hashed) {
-
- return;
- }
-
- mtr_start(&mtr);
-
- /* We assume that if the caller has a latch on the page, then the
- caller has already dropped the hash index for the page, and we never
- get here. Therefore we can acquire the s-latch to the page without
- having to fear a deadlock. */
-
- page = buf_page_get_gen(space, page_no, RW_S_LATCH, NULL,
- BUF_GET_IF_IN_POOL, __FILE__, __LINE__,
- &mtr);
-
-#ifdef UNIV_SYNC_DEBUG
- buf_page_dbg_add_level(page, SYNC_TREE_NODE_FROM_HASH);
-#endif /* UNIV_SYNC_DEBUG */
-
- btr_search_drop_page_hash_index(page);
-
- mtr_commit(&mtr);
-}
-
-/************************************************************************
-Builds a hash index on a page with the given parameters. If the page already
-has a hash index with different parameters, the old hash index is removed.
-If index is non-NULL, this function checks if n_fields and n_bytes are
-sensible values, and does not build a hash index if not. */
-static
-void
-btr_search_build_page_hash_index(
-/*=============================*/
- dict_index_t* index, /* in: index for which to build */
- page_t* page, /* in: index page, s- or x-latched */
- ulint n_fields,/* in: hash this many full fields */
- ulint n_bytes,/* in: hash this many bytes from the next
- field */
- ulint side) /* in: hash for searches from this side */
-{
- hash_table_t* table;
- buf_block_t* block;
- rec_t* rec;
- rec_t* next_rec;
- rec_t* sup;
- ulint fold;
- ulint next_fold;
- dulint tree_id;
- ulint n_cached;
- ulint n_recs;
- ulint* folds;
- rec_t** recs;
- ulint i;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- ut_ad(index);
-
- block = buf_block_align(page);
- table = btr_search_sys->hash_index;
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_SHARED)
- || rw_lock_own(&(block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- rw_lock_s_lock(&btr_search_latch);
-
- if (block->is_hashed && ((block->curr_n_fields != n_fields)
- || (block->curr_n_bytes != n_bytes)
- || (block->curr_side != side))) {
-
- rw_lock_s_unlock(&btr_search_latch);
-
- btr_search_drop_page_hash_index(page);
- } else {
- rw_lock_s_unlock(&btr_search_latch);
- }
-
- n_recs = page_get_n_recs(page);
-
- if (n_recs == 0) {
-
- return;
- }
-
- /* Check that the values for hash index build are sensible */
-
- if (n_fields + n_bytes == 0) {
-
- return;
- }
-
- if (dict_index_get_n_unique_in_tree(index) < n_fields
- || (dict_index_get_n_unique_in_tree(index) == n_fields
- && n_bytes > 0)) {
- return;
- }
-
- /* Calculate and cache fold values and corresponding records into
- an array for fast insertion to the hash index */
-
- folds = mem_alloc(n_recs * sizeof(ulint));
- recs = mem_alloc(n_recs * sizeof(rec_t*));
-
- n_cached = 0;
-
- tree_id = btr_page_get_index_id(page);
-
- sup = page_get_supremum_rec(page);
-
- rec = page_get_infimum_rec(page);
- rec = page_rec_get_next(rec);
-
- offsets = rec_get_offsets(rec, index, offsets,
- n_fields + (n_bytes > 0), &heap);
-
- if (rec != sup) {
- ut_a(n_fields <= rec_offs_n_fields(offsets));
-
- if (n_bytes > 0) {
- ut_a(n_fields < rec_offs_n_fields(offsets));
- }
- }
-
- /* FIXME: in a mixed tree, all records may not have enough ordering
- fields: */
- fold = rec_fold(rec, offsets, n_fields, n_bytes, tree_id);
-
- if (side == BTR_SEARCH_LEFT_SIDE) {
-
- folds[n_cached] = fold;
- recs[n_cached] = rec;
- n_cached++;
- }
-
- for (;;) {
- next_rec = page_rec_get_next(rec);
-
- if (next_rec == sup) {
-
- if (side == BTR_SEARCH_RIGHT_SIDE) {
-
- folds[n_cached] = fold;
- recs[n_cached] = rec;
- n_cached++;
- }
-
- break;
- }
-
- offsets = rec_get_offsets(next_rec, index, offsets,
- n_fields + (n_bytes > 0), &heap);
- next_fold = rec_fold(next_rec, offsets, n_fields,
- n_bytes, tree_id);
-
- if (fold != next_fold) {
- /* Insert an entry into the hash index */
-
- if (side == BTR_SEARCH_LEFT_SIDE) {
-
- folds[n_cached] = next_fold;
- recs[n_cached] = next_rec;
- n_cached++;
- } else {
- folds[n_cached] = fold;
- recs[n_cached] = rec;
- n_cached++;
- }
- }
-
- rec = next_rec;
- fold = next_fold;
- }
-
- btr_search_check_free_space_in_heap();
-
- rw_lock_x_lock(&btr_search_latch);
-
- if (block->is_hashed && ((block->curr_n_fields != n_fields)
- || (block->curr_n_bytes != n_bytes)
- || (block->curr_side != side))) {
- goto exit_func;
- }
-
- block->is_hashed = TRUE;
- block->n_hash_helps = 0;
-
- block->curr_n_fields = n_fields;
- block->curr_n_bytes = n_bytes;
- block->curr_side = side;
- block->index = index;
-
- for (i = 0; i < n_cached; i++) {
-
- ha_insert_for_fold(table, folds[i], recs[i]);
- }
-
-exit_func:
- rw_lock_x_unlock(&btr_search_latch);
-
- mem_free(folds);
- mem_free(recs);
- if (heap) {
- mem_heap_free(heap);
- }
-}
-
-/************************************************************************
-Moves or deletes hash entries for moved records. If new_page is already hashed,
-then the hash index for page, if any, is dropped. If new_page is not hashed,
-and page is hashed, then a new hash index is built to new_page with the same
-parameters as page (this often happens when a page is split). */
-
-void
-btr_search_move_or_delete_hash_entries(
-/*===================================*/
- page_t* new_page, /* in: records are copied
- to this page */
- page_t* page, /* in: index page from which
- records were copied, and the
- copied records will be deleted
- from this page */
- dict_index_t* index) /* in: record descriptor */
-{
- buf_block_t* block;
- buf_block_t* new_block;
- ulint n_fields;
- ulint n_bytes;
- ulint side;
-
- block = buf_block_align(page);
- new_block = buf_block_align(new_page);
- ut_a(page_is_comp(page) == page_is_comp(new_page));
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_EX));
- ut_ad(rw_lock_own(&(new_block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
- ut_a(!new_block->is_hashed || new_block->index == index);
- ut_a(!block->is_hashed || block->index == index);
-
- rw_lock_s_lock(&btr_search_latch);
-
- if (new_block->is_hashed) {
-
- rw_lock_s_unlock(&btr_search_latch);
-
- btr_search_drop_page_hash_index(page);
-
- return;
- }
-
- if (block->is_hashed) {
-
- n_fields = block->curr_n_fields;
- n_bytes = block->curr_n_bytes;
- side = block->curr_side;
-
- new_block->n_fields = block->curr_n_fields;
- new_block->n_bytes = block->curr_n_bytes;
- new_block->side = block->curr_side;
-
- rw_lock_s_unlock(&btr_search_latch);
-
- ut_a(n_fields + n_bytes > 0);
-
- btr_search_build_page_hash_index(index, new_page, n_fields,
- n_bytes, side);
- ut_a(n_fields == block->curr_n_fields);
- ut_a(n_bytes == block->curr_n_bytes);
- ut_a(side == block->curr_side);
-
- return;
- }
-
- rw_lock_s_unlock(&btr_search_latch);
-}
-
-/************************************************************************
-Updates the page hash index when a single record is deleted from a page. */
-
-void
-btr_search_update_hash_on_delete(
-/*=============================*/
- btr_cur_t* cursor) /* in: cursor which was positioned on the
- record to delete using btr_cur_search_...,
- the record is not yet deleted */
-{
- hash_table_t* table;
- buf_block_t* block;
- rec_t* rec;
- ulint fold;
- dulint tree_id;
- ibool found;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- mem_heap_t* heap = NULL;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- rec = btr_cur_get_rec(cursor);
-
- block = buf_block_align(rec);
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- if (!block->is_hashed) {
-
- return;
- }
-
- ut_a(block->index == cursor->index);
- ut_a(block->curr_n_fields + block->curr_n_bytes > 0);
-
- table = btr_search_sys->hash_index;
-
- tree_id = cursor->index->tree->id;
- fold = rec_fold(rec, rec_get_offsets(rec, cursor->index, offsets_,
- ULINT_UNDEFINED, &heap), block->curr_n_fields,
- block->curr_n_bytes, tree_id);
- if (heap) {
- mem_heap_free(heap);
- }
- rw_lock_x_lock(&btr_search_latch);
-
- found = ha_search_and_delete_if_found(table, fold, rec);
-
- rw_lock_x_unlock(&btr_search_latch);
-}
-
-/************************************************************************
-Updates the page hash index when a single record is inserted on a page. */
-
-void
-btr_search_update_hash_node_on_insert(
-/*==================================*/
- btr_cur_t* cursor) /* in: cursor which was positioned to the
- place to insert using btr_cur_search_...,
- and the new record has been inserted next
- to the cursor */
-{
- hash_table_t* table;
- buf_block_t* block;
- rec_t* rec;
-
- rec = btr_cur_get_rec(cursor);
-
- block = buf_block_align(rec);
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- if (!block->is_hashed) {
-
- return;
- }
-
- ut_a(block->index == cursor->index);
-
- rw_lock_x_lock(&btr_search_latch);
-
- if ((cursor->flag == BTR_CUR_HASH)
- && (cursor->n_fields == block->curr_n_fields)
- && (cursor->n_bytes == block->curr_n_bytes)
- && (block->curr_side == BTR_SEARCH_RIGHT_SIDE)) {
-
- table = btr_search_sys->hash_index;
-
- ha_search_and_update_if_found(table, cursor->fold, rec,
- page_rec_get_next(rec));
-
- rw_lock_x_unlock(&btr_search_latch);
- } else {
- rw_lock_x_unlock(&btr_search_latch);
-
- btr_search_update_hash_on_insert(cursor);
- }
-}
-
-/************************************************************************
-Updates the page hash index when a single record is inserted on a page. */
-
-void
-btr_search_update_hash_on_insert(
-/*=============================*/
- btr_cur_t* cursor) /* in: cursor which was positioned to the
- place to insert using btr_cur_search_...,
- and the new record has been inserted next
- to the cursor */
-{
- hash_table_t* table;
- buf_block_t* block;
- page_t* page;
- rec_t* rec;
- rec_t* ins_rec;
- rec_t* next_rec;
- dulint tree_id;
- ulint fold;
- ulint ins_fold;
- ulint next_fold = 0; /* remove warning (??? bug ???) */
- ulint n_fields;
- ulint n_bytes;
- ulint side;
- ibool locked = FALSE;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- table = btr_search_sys->hash_index;
-
- btr_search_check_free_space_in_heap();
-
- rec = btr_cur_get_rec(cursor);
-
- block = buf_block_align(rec);
-
-#ifdef UNIV_SYNC_DEBUG
- ut_ad(rw_lock_own(&(block->lock), RW_LOCK_EX));
-#endif /* UNIV_SYNC_DEBUG */
-
- if (!block->is_hashed) {
-
- return;
- }
-
- ut_a(block->index == cursor->index);
-
- tree_id = ((cursor->index)->tree)->id;
-
- n_fields = block->curr_n_fields;
- n_bytes = block->curr_n_bytes;
- side = block->curr_side;
-
- ins_rec = page_rec_get_next(rec);
- next_rec = page_rec_get_next(ins_rec);
-
- page = buf_frame_align(rec);
- offsets = rec_get_offsets(ins_rec, cursor->index, offsets,
- ULINT_UNDEFINED, &heap);
- ins_fold = rec_fold(ins_rec, offsets, n_fields, n_bytes, tree_id);
-
- if (next_rec != page_get_supremum_rec(page)) {
- offsets = rec_get_offsets(next_rec, cursor->index, offsets,
- n_fields + (n_bytes > 0), &heap);
- next_fold = rec_fold(next_rec, offsets, n_fields,
- n_bytes, tree_id);
- }
-
- if (rec != page_get_infimum_rec(page)) {
- offsets = rec_get_offsets(rec, cursor->index, offsets,
- n_fields + (n_bytes > 0), &heap);
- fold = rec_fold(rec, offsets, n_fields, n_bytes, tree_id);
- } else {
- if (side == BTR_SEARCH_LEFT_SIDE) {
-
- rw_lock_x_lock(&btr_search_latch);
-
- locked = TRUE;
-
- ha_insert_for_fold(table, ins_fold, ins_rec);
- }
-
- goto check_next_rec;
- }
-
- if (fold != ins_fold) {
-
- if (!locked) {
-
- rw_lock_x_lock(&btr_search_latch);
-
- locked = TRUE;
- }
-
- if (side == BTR_SEARCH_RIGHT_SIDE) {
- ha_insert_for_fold(table, fold, rec);
- } else {
- ha_insert_for_fold(table, ins_fold, ins_rec);
- }
- }
-
-check_next_rec:
- if (next_rec == page_get_supremum_rec(page)) {
-
- if (side == BTR_SEARCH_RIGHT_SIDE) {
-
- if (!locked) {
- rw_lock_x_lock(&btr_search_latch);
-
- locked = TRUE;
- }
-
- ha_insert_for_fold(table, ins_fold, ins_rec);
- }
-
- goto function_exit;
- }
-
- if (ins_fold != next_fold) {
-
- if (!locked) {
-
- rw_lock_x_lock(&btr_search_latch);
-
- locked = TRUE;
- }
-
- if (side == BTR_SEARCH_RIGHT_SIDE) {
-
- ha_insert_for_fold(table, ins_fold, ins_rec);
-/*
- fputs("Hash insert for ", stderr);
- dict_index_name_print(stderr, cursor->index);
- fprintf(stderr, " fold %lu\n", ins_fold);
-*/
- } else {
- ha_insert_for_fold(table, next_fold, next_rec);
- }
- }
-
-function_exit:
- if (heap) {
- mem_heap_free(heap);
- }
- if (locked) {
- rw_lock_x_unlock(&btr_search_latch);
- }
-}
-
-/************************************************************************
-Validates the search system. */
-
-ibool
-btr_search_validate(void)
-/*=====================*/
- /* out: TRUE if ok */
-{
- buf_block_t* block;
- page_t* page;
- ha_node_t* node;
- ulint n_page_dumps = 0;
- ibool ok = TRUE;
- ulint i;
- mem_heap_t* heap = NULL;
- ulint offsets_[REC_OFFS_NORMAL_SIZE];
- ulint* offsets = offsets_;
- *offsets_ = (sizeof offsets_) / sizeof *offsets_;
-
- rw_lock_x_lock(&btr_search_latch);
-
- for (i = 0; i < hash_get_n_cells(btr_search_sys->hash_index); i++) {
- node = hash_get_nth_cell(btr_search_sys->hash_index, i)->node;
-
- while (node != NULL) {
- block = buf_block_align(node->data);
- page = buf_frame_align(node->data);
- offsets = rec_get_offsets((rec_t*) node->data,
- block->index, offsets,
- block->curr_n_fields
- + (block->curr_n_bytes > 0), &heap);
-
- if (!block->is_hashed
- || node->fold != rec_fold((rec_t*)(node->data),
- offsets,
- block->curr_n_fields,
- block->curr_n_bytes,
- btr_page_get_index_id(page))) {
- ok = FALSE;
- ut_print_timestamp(stderr);
-
- fprintf(stderr,
-" InnoDB: Error in an adaptive hash index pointer to page %lu\n"
-"ptr mem address %p index id %lu %lu, node fold %lu, rec fold %lu\n",
- (ulong) buf_frame_get_page_no(page),
- node->data,
- (ulong) ut_dulint_get_high(btr_page_get_index_id(page)),
- (ulong) ut_dulint_get_low(btr_page_get_index_id(page)),
- (ulong) node->fold,
- (ulong) rec_fold((rec_t*)(node->data),
- offsets,
- block->curr_n_fields,
- block->curr_n_bytes,
- btr_page_get_index_id(page)));
-
- fputs("InnoDB: Record ", stderr);
- rec_print_new(stderr, (rec_t*)node->data,
- offsets);
- fprintf(stderr, "\nInnoDB: on that page."
-"Page mem address %p, is hashed %lu, n fields %lu, n bytes %lu\n"
-"side %lu\n",
- page, (ulong) block->is_hashed,
- (ulong) block->curr_n_fields,
- (ulong) block->curr_n_bytes, (ulong) block->curr_side);
-
- if (n_page_dumps < 20) {
- buf_page_print(page);
- n_page_dumps++;
- }
- }
-
- node = node->next;
- }
- }
-
- if (!ha_validate(btr_search_sys->hash_index)) {
-
- ok = FALSE;
- }
-
- rw_lock_x_unlock(&btr_search_latch);
- if (heap) {
- mem_heap_free(heap);
- }
-
- return(ok);
-}
diff --git a/innobase/btr/makefilewin b/innobase/btr/makefilewin
deleted file mode 100644
index a5806b74a51..00000000000
--- a/innobase/btr/makefilewin
+++ /dev/null
@@ -1,16 +0,0 @@
-include ..\include\makefile.i
-
-btr.lib: btr0cur.obj btr0btr.obj btr0pcur.obj btr0sea.obj
- lib -out:..\libs\btr.lib btr0cur.obj btr0btr.obj btr0pcur.obj btr0sea.obj
-
-btr0cur.obj: btr0cur.c
- $(CCOM) $(CFL) -c btr0cur.c
-
-btr0btr.obj: btr0btr.c
- $(CCOM) $(CFL) -c btr0btr.c
-
-btr0sea.obj: btr0sea.c
- $(CCOM) $(CFL) -c btr0sea.c
-
-btr0pcur.obj: btr0pcur.c
- $(CCOM) $(CFL) -c btr0pcur.c