diff options
| author | unknown <ram@mysql.r18.ru> | 2002-10-30 15:57:05 +0400 |
|---|---|---|
| committer | unknown <ram@mysql.r18.ru> | 2002-10-30 15:57:05 +0400 |
| commit | 155e78f014de1a2e259ae5119f4621fbb210a784 (patch) | |
| tree | 6881a3cca88bea0bb9eeffd5aae34be437152786 /bdb/dbinc/db.in | |
| parent | b8798d25ab71436bf690ee8ae48285a655c5487e (diff) | |
| download | mariadb-git-155e78f014de1a2e259ae5119f4621fbb210a784.tar.gz | |
BDB 4.1.24
BitKeeper/deleted/.del-ex_access.wpj~3df6ae8c99bf7c5f:
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BitKeeper/deleted/.del-ex_btrec.wpj~a7622f1c6f432dc6:
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BitKeeper/deleted/.del-ex_dbclient.wpj~7345440f3b204cdd:
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BitKeeper/deleted/.del-ex_env.wpj~fbe1ab10b04e8b74:
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BitKeeper/deleted/.del-ex_mpool.wpj~4479cfd5c45f327d:
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BitKeeper/deleted/.del-ex_tpcb.wpj~f78093006e14bf41:
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BitKeeper/deleted/.del-db_buildall.dsp~bd749ff6da11682:
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BitKeeper/deleted/.del-cxx_app.cpp~ad8df8e0791011ed:
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BitKeeper/deleted/.del-cxx_log.cpp~a50ff3118fe06952:
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BitKeeper/deleted/.del-cxx_table.cpp~ecd751e79b055556:
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BitKeeper/deleted/.del-namemap.txt~796a3acd3885d8fd:
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BitKeeper/deleted/.del-Design.fileop~3ca4da68f1727373:
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BitKeeper/deleted/.del-db185_int.h~61bee3736e7959ef:
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BitKeeper/deleted/.del-acconfig.h~411e8854d67ad8b5:
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BitKeeper/deleted/.del-mutex.m4~a13383cde18a64e1:
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BitKeeper/deleted/.del-options.m4~b9d0ca637213750a:
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BitKeeper/deleted/.del-programs.m4~3ce7890b47732b30:
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BitKeeper/deleted/.del-tcl.m4~f944e2db93c3b6db:
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BitKeeper/deleted/.del-types.m4~59cae158c9a32cff:
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BitKeeper/deleted/.del-script~d38f6d3a4f159cb4:
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BitKeeper/deleted/.del-configure.in~ac795a92c8fe049c:
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BitKeeper/deleted/.del-ltconfig~66bbd007d8024af:
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BitKeeper/deleted/.del-rec_ctemp~a28554362534f00a:
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BitKeeper/deleted/.del-s_tcl~2ffe4326459fcd9f:
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BitKeeper/deleted/.del-.IGNORE_ME~d8148b08fa7d5d15:
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BitKeeper/deleted/.del-btree.h~179f2aefec1753d:
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BitKeeper/deleted/.del-cxx_int.h~6b649c04766508f8:
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BitKeeper/deleted/.del-db.src~6b433ae615b16a8d:
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BitKeeper/deleted/.del-db_185.h~ad8b373d9391d35c:
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BitKeeper/deleted/.del-db_am.h~a714912b6b75932f:
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BitKeeper/deleted/.del-db_cxx.h~fcafadf45f5d19e9:
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BitKeeper/deleted/.del-db_dispatch.h~6844f20f7eb46904:
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BitKeeper/deleted/.del-db_int.src~419a3f48b6a01da7:
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BitKeeper/deleted/.del-db_join.h~76f9747a42c3399a:
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BitKeeper/deleted/.del-db_page.h~e302ca3a4db3abdc:
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BitKeeper/deleted/.del-db_server_int.h~e1d20b6ba3bca1ab:
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BitKeeper/deleted/.del-db_shash.h~5fbf2d696fac90f3:
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BitKeeper/deleted/.del-db_swap.h~1e60887550864a59:
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BitKeeper/deleted/.del-db_upgrade.h~c644eee73701fc8d:
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BitKeeper/deleted/.del-db_verify.h~b8d6c297c61f342e:
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BitKeeper/deleted/.del-debug.h~dc2b4f2cf27ccebc:
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BitKeeper/deleted/.del-hash.h~2aaa548b28882dfb:
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BitKeeper/deleted/.del-lock.h~a761c1b7de57b77f:
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BitKeeper/deleted/.del-log.h~ff20184238e35e4d:
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BitKeeper/deleted/.del-mp.h~7e317597622f3411:
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BitKeeper/deleted/.del-mutex.h~d3ae7a2977a68137:
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BitKeeper/deleted/.del-os.h~91867cc8757cd0e3:
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BitKeeper/deleted/.del-os_jump.h~e1b939fa5151d4be:
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BitKeeper/deleted/.del-qam.h~6fad0c1b5723d597:
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BitKeeper/deleted/.del-queue.h~4c72c0826c123d5:
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BitKeeper/deleted/.del-region.h~513fe04d977ca0fc:
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BitKeeper/deleted/.del-shqueue.h~525fc3e6c2025c36:
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BitKeeper/deleted/.del-tcl_db.h~c536fd61a844f23f:
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BitKeeper/deleted/.del-txn.h~c8d94b221ec147e4:
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BitKeeper/deleted/.del-xa.h~ecc466493aae9d9a:
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BitKeeper/deleted/.del-DbRecoveryInit.java~756b52601a0b9023:
Delete: bdb/java/src/com/sleepycat/db/DbRecoveryInit.java
BitKeeper/deleted/.del-DbTxnRecover.java~74607cba7ab89d6d:
Delete: bdb/java/src/com/sleepycat/db/DbTxnRecover.java
BitKeeper/deleted/.del-lock_conflict.c~fc5e0f14cf597a2b:
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BitKeeper/deleted/.del-log.src~53ac9e7b5cb023f2:
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BitKeeper/deleted/.del-log_findckp.c~24287f008916e81f:
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BitKeeper/deleted/.del-log_rec.c~d51711f2cac09297:
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BitKeeper/deleted/.del-log_register.c~b40bb4efac75ca15:
Delete: bdb/log/log_register.c
BitKeeper/deleted/.del-Design~b3d0f179f2767b:
Delete: bdb/mp/Design
BitKeeper/deleted/.del-os_finit.c~95dbefc6fe79b26c:
Delete: bdb/os/os_finit.c
BitKeeper/deleted/.del-os_abs.c~df95d1e7db81924:
Delete: bdb/os_vxworks/os_abs.c
BitKeeper/deleted/.del-os_finit.c~803b484bdb9d0122:
Delete: bdb/os_vxworks/os_finit.c
BitKeeper/deleted/.del-os_map.c~3a6d7926398b76d3:
Delete: bdb/os_vxworks/os_map.c
BitKeeper/deleted/.del-os_finit.c~19a227c6d3c78ad:
Delete: bdb/os_win32/os_finit.c
BitKeeper/deleted/.del-log-corruption.patch~1cf2ecc7c6408d5d:
Delete: bdb/patches/log-corruption.patch
BitKeeper/deleted/.del-Btree.pm~af6d0c5eaed4a98e:
Delete: bdb/perl.BerkeleyDB/BerkeleyDB/Btree.pm
BitKeeper/deleted/.del-BerkeleyDB.pm~7244036d4482643:
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BitKeeper/deleted/.del-BerkeleyDB.pod~e7b18fd6132448e3:
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BitKeeper/deleted/.del-Hash.pm~10292a26c06a5c95:
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BitKeeper/deleted/.del-BerkeleyDB.pod.P~79f76a1495eda203:
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BitKeeper/deleted/.del-BerkeleyDB.xs~80c99afbd98e392c:
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BitKeeper/deleted/.del-Changes~729c1891efa60de9:
Delete: bdb/perl.BerkeleyDB/Changes
BitKeeper/deleted/.del-MANIFEST~63a1e34aecf157a0:
Delete: bdb/perl.BerkeleyDB/MANIFEST
BitKeeper/deleted/.del-Makefile.PL~c68797707d8df87a:
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BitKeeper/deleted/.del-README~5f2f579b1a241407:
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BitKeeper/deleted/.del-Todo~dca3c66c193adda9:
Delete: bdb/perl.BerkeleyDB/Todo
BitKeeper/deleted/.del-config.in~ae81681e450e0999:
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BitKeeper/deleted/.del-dbinfo~28ad67d83be4f68e:
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BitKeeper/deleted/.del-mkconsts~543ab60669c7a04e:
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BitKeeper/deleted/.del-mkpod~182c0ca54e439afb:
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BitKeeper/deleted/.del-5.004~e008cb5a48805543:
Delete: bdb/perl.BerkeleyDB/patches/5.004
BitKeeper/deleted/.del-irix_6_5.pl~61662bb08afcdec8:
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BitKeeper/deleted/.del-solaris.pl~6771e7182394e152:
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BitKeeper/deleted/.del-typemap~783b8f5295b05f3d:
Delete: bdb/perl.BerkeleyDB/typemap
BitKeeper/deleted/.del-5.004_01~6081ce2fff7b0bc:
Delete: bdb/perl.BerkeleyDB/patches/5.004_01
BitKeeper/deleted/.del-5.004_02~87214eac35ad9e6:
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BitKeeper/deleted/.del-5.004_03~9a672becec7cb40f:
Delete: bdb/perl.BerkeleyDB/patches/5.004_03
BitKeeper/deleted/.del-5.004_04~e326cb51af09d154:
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BitKeeper/deleted/.del-5.004_05~7ab457a1e41a92fe:
Delete: bdb/perl.BerkeleyDB/patches/5.004_05
BitKeeper/deleted/.del-5.005~f9e2d59b5964cd4b:
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BitKeeper/deleted/.del-5.005_01~3eb9fb7b5842ea8e:
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BitKeeper/deleted/.del-5.005_02~67477ce0bef717cb:
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BitKeeper/deleted/.del-5.005_03~c4c29a1fb21e290a:
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BitKeeper/deleted/.del-5.6.0~e1fb9897d124ee22:
Delete: bdb/perl.BerkeleyDB/patches/5.6.0
BitKeeper/deleted/.del-btree.t~e4a1a3c675ddc406:
Delete: bdb/perl.BerkeleyDB/t/btree.t
BitKeeper/deleted/.del-db-3.0.t~d2c60991d84558f2:
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BitKeeper/deleted/.del-db-3.1.t~6ee88cd13f55e018:
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BitKeeper/deleted/.del-db-3.2.t~f73b6461f98fd1cf:
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BitKeeper/deleted/.del-destroy.t~cc6a2ae1980a2ecd:
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BitKeeper/deleted/.del-env.t~a8604a4499c4bd07:
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BitKeeper/deleted/.del-examples.t~2571b77c3cc75574:
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BitKeeper/deleted/.del-examples.t.T~8228bdd75ac78b88:
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BitKeeper/deleted/.del-examples3.t.T~66a186897a87026d:
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BitKeeper/deleted/.del-examples3.t~fe3822ba2f2d7f83:
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BitKeeper/deleted/.del-filter.t~f87b045c1b708637:
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BitKeeper/deleted/.del-hash.t~616bfb4d644de3a3:
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BitKeeper/deleted/.del-join.t~29fc39f74a83ca22:
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BitKeeper/deleted/.del-mldbm.t~31f5015341eea040:
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BitKeeper/deleted/.del-queue.t~8f338034ce44a641:
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BitKeeper/deleted/.del-recno.t~d4ddbd3743add63e:
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BitKeeper/deleted/.del-strict.t~6885cdd2ea71ca2d:
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BitKeeper/deleted/.del-subdb.t~aab62a5d5864c603:
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BitKeeper/deleted/.del-txn.t~65033b8558ae1216:
Delete: bdb/perl.BerkeleyDB/t/txn.t
BitKeeper/deleted/.del-unknown.t~f3710458682665e1:
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BitKeeper/deleted/.del-Changes~436f74a5c414c65b:
Delete: bdb/perl.DB_File/Changes
BitKeeper/deleted/.del-DB_File.pm~ae0951c6c7665a82:
Delete: bdb/perl.DB_File/DB_File.pm
BitKeeper/deleted/.del-DB_File.xs~89e49a0b5556f1d8:
Delete: bdb/perl.DB_File/DB_File.xs
BitKeeper/deleted/.del-DB_File_BS~290fad5dbbb87069:
Delete: bdb/perl.DB_File/DB_File_BS
BitKeeper/deleted/.del-MANIFEST~90ee581572bdd4ac:
Delete: bdb/perl.DB_File/MANIFEST
BitKeeper/deleted/.del-Makefile.PL~ac0567bb5a377e38:
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BitKeeper/deleted/.del-README~77e924a5a9bae6b3:
Delete: bdb/perl.DB_File/README
BitKeeper/deleted/.del-config.in~ab4c2792b86a810b:
Delete: bdb/perl.DB_File/config.in
BitKeeper/deleted/.del-dbinfo~461c43b30fab2cb:
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BitKeeper/deleted/.del-dynixptx.pl~50dcddfae25d17e9:
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BitKeeper/deleted/.del-typemap~55cffb3288a9e587:
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BitKeeper/deleted/.del-version.c~a4df0e646f8b3975:
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BitKeeper/deleted/.del-5.004_01~d6830d0082702af7:
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BitKeeper/deleted/.del-5.004_02~78b082dc80c91031:
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BitKeeper/deleted/.del-5.004~4411ec2e3c9e008b:
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BitKeeper/deleted/.del-sco.pl~1e795fe14fe4dcfe:
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BitKeeper/deleted/.del-5.004_03~33f274648b160d95:
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BitKeeper/deleted/.del-5.004_04~8f3d1b3cf18bb20a:
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BitKeeper/deleted/.del-5.004_05~9c0f02e7331e142:
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BitKeeper/deleted/.del-5.005~c2108cb2e3c8d951:
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BitKeeper/deleted/.del-5.005_01~3b45e9673afc4cfa:
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BitKeeper/deleted/.del-5.005_02~9fe5766bb02a4522:
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BitKeeper/deleted/.del-5.005_03~ffa1c38c19ae72ea:
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BitKeeper/deleted/.del-5.6.0~373be3a5ce47be85:
Delete: bdb/perl.DB_File/patches/5.6.0
BitKeeper/deleted/.del-db-btree.t~3231595a1c241eb3:
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BitKeeper/deleted/.del-db-hash.t~7c4ad0c795c7fad2:
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BitKeeper/deleted/.del-db-recno.t~6c2d3d80b9ba4a50:
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BitKeeper/deleted/.del-db_server.sed~cdb00ebcd48a64e2:
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BitKeeper/deleted/.del-db_server_proc.c~d46c8f409c3747f4:
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BitKeeper/deleted/.del-db_server_svc.sed~3f5e59f334fa4607:
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BitKeeper/deleted/.del-db_server_util.c~a809f3a4629acda:
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BitKeeper/deleted/.del-log.tcl~ff1b41f1355b97d7:
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BitKeeper/deleted/.del-mpool.tcl~b0df4dc1b04db26c:
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BitKeeper/deleted/.del-mutex.tcl~52fd5c73a150565:
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BitKeeper/deleted/.del-txn.tcl~c4ff071550b5446e:
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BitKeeper/deleted/.del-README~e800a12a5392010a:
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BitKeeper/deleted/.del-pack-2.6.6.pl~89d5076d758d3e98:
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BitKeeper/deleted/.del-test-2.6.patch~4a52dc83d447547b:
Delete: bdb/test/upgrade/generate-2.X/test-2.6.patch
Diffstat (limited to 'bdb/dbinc/db.in')
| -rw-r--r-- | bdb/dbinc/db.in | 1883 |
1 files changed, 1883 insertions, 0 deletions
diff --git a/bdb/dbinc/db.in b/bdb/dbinc/db.in new file mode 100644 index 00000000000..208de3bd622 --- /dev/null +++ b/bdb/dbinc/db.in @@ -0,0 +1,1883 @@ +/* + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996-2002 + * Sleepycat Software. All rights reserved. + * + * $Id: db.in,v 11.323 2002/09/03 17:27:16 bostic Exp $ + * + * db.h include file layout: + * General. + * Database Environment. + * Locking subsystem. + * Logging subsystem. + * Shared buffer cache (mpool) subsystem. + * Transaction subsystem. + * Access methods. + * Access method cursors. + * Dbm/Ndbm, Hsearch historic interfaces. + */ + +#ifndef _DB_H_ +#define _DB_H_ + +#ifndef __NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <stdio.h> +#endif + +#if defined(__cplusplus) +extern "C" { +#endif + +/* + * XXX + * Handle function prototypes and the keyword "const". This steps on name + * space that DB doesn't control, but all of the other solutions are worse. + * + * XXX + * While Microsoft's compiler is ANSI C compliant, it doesn't have _STDC_ + * defined by default, you specify a command line flag or #pragma to turn + * it on. Don't do that, however, because some of Microsoft's own header + * files won't compile. + */ +#undef __P +#if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER) +#define __P(protos) protos /* ANSI C prototypes */ +#else +#define const +#define __P(protos) () /* K&R C preprocessor */ +#endif + +/* + * Berkeley DB version information. + */ +#define DB_VERSION_MAJOR @DB_VERSION_MAJOR@ +#define DB_VERSION_MINOR @DB_VERSION_MINOR@ +#define DB_VERSION_PATCH @DB_VERSION_PATCH@ +#define DB_VERSION_STRING @DB_VERSION_STRING@ + +/* + * !!! + * Berkeley DB uses specifically sized types. If they're not provided by + * the system, typedef them here. + * + * We protect them against multiple inclusion using __BIT_TYPES_DEFINED__, + * as does BIND and Kerberos, since we don't know for sure what #include + * files the user is using. + * + * !!! + * We also provide the standard u_int, u_long etc., if they're not provided + * by the system. + */ +#ifndef __BIT_TYPES_DEFINED__ +#define __BIT_TYPES_DEFINED__ +@u_int8_decl@ +@int16_decl@ +@u_int16_decl@ +@int32_decl@ +@u_int32_decl@ +#endif + +@u_char_decl@ +@u_short_decl@ +@u_int_decl@ +@u_long_decl@ +@ssize_t_decl@ + +/* Basic types that are exported or quasi-exported. */ +typedef u_int32_t db_pgno_t; /* Page number type. */ +typedef u_int16_t db_indx_t; /* Page offset type. */ +#define DB_MAX_PAGES 0xffffffff /* >= # of pages in a file */ + +typedef u_int32_t db_recno_t; /* Record number type. */ +#define DB_MAX_RECORDS 0xffffffff /* >= # of records in a tree */ + +typedef u_int32_t db_timeout_t; /* Type of a timeout. */ + +/* + * Region offsets are currently limited to 32-bits. I expect that's going + * to have to be fixed in the not-too-distant future, since we won't want to + * split 100Gb memory pools into that many different regions. + */ +typedef u_int32_t roff_t; + +/* + * Forward structure declarations, so we can declare pointers and + * applications can get type checking. + */ +struct __db; typedef struct __db DB; +struct __db_bt_stat; typedef struct __db_bt_stat DB_BTREE_STAT; +struct __db_cipher; typedef struct __db_cipher DB_CIPHER; +struct __db_dbt; typedef struct __db_dbt DBT; +struct __db_env; typedef struct __db_env DB_ENV; +struct __db_h_stat; typedef struct __db_h_stat DB_HASH_STAT; +struct __db_ilock; typedef struct __db_ilock DB_LOCK_ILOCK; +struct __db_lock_stat; typedef struct __db_lock_stat DB_LOCK_STAT; +struct __db_lock_u; typedef struct __db_lock_u DB_LOCK; +struct __db_lockreq; typedef struct __db_lockreq DB_LOCKREQ; +struct __db_log_cursor; typedef struct __db_log_cursor DB_LOGC; +struct __db_log_stat; typedef struct __db_log_stat DB_LOG_STAT; +struct __db_lsn; typedef struct __db_lsn DB_LSN; +struct __db_mpool; typedef struct __db_mpool DB_MPOOL; +struct __db_mpool_fstat;typedef struct __db_mpool_fstat DB_MPOOL_FSTAT; +struct __db_mpool_stat; typedef struct __db_mpool_stat DB_MPOOL_STAT; +struct __db_mpoolfile; typedef struct __db_mpoolfile DB_MPOOLFILE; +struct __db_preplist; typedef struct __db_preplist DB_PREPLIST; +struct __db_qam_stat; typedef struct __db_qam_stat DB_QUEUE_STAT; +struct __db_rep; typedef struct __db_rep DB_REP; +struct __db_rep_stat; typedef struct __db_rep_stat DB_REP_STAT; +struct __db_txn; typedef struct __db_txn DB_TXN; +struct __db_txn_active; typedef struct __db_txn_active DB_TXN_ACTIVE; +struct __db_txn_stat; typedef struct __db_txn_stat DB_TXN_STAT; +struct __db_txnmgr; typedef struct __db_txnmgr DB_TXNMGR; +struct __dbc; typedef struct __dbc DBC; +struct __dbc_internal; typedef struct __dbc_internal DBC_INTERNAL; +struct __fh_t; typedef struct __fh_t DB_FH; +struct __fname; typedef struct __fname FNAME; +struct __key_range; typedef struct __key_range DB_KEY_RANGE; +struct __mpoolfile; typedef struct __mpoolfile MPOOLFILE; +struct __mutex_t; typedef struct __mutex_t DB_MUTEX; + +/* Key/data structure -- a Data-Base Thang. */ +struct __db_dbt { + /* + * data/size must be fields 1 and 2 for DB 1.85 compatibility. + */ + void *data; /* Key/data */ + u_int32_t size; /* key/data length */ + + u_int32_t ulen; /* RO: length of user buffer. */ + u_int32_t dlen; /* RO: get/put record length. */ + u_int32_t doff; /* RO: get/put record offset. */ + + void *app_private; /* Application-private handle. */ + +#define DB_DBT_APPMALLOC 0x001 /* Callback allocated memory. */ +#define DB_DBT_ISSET 0x002 /* Lower level calls set value. */ +#define DB_DBT_MALLOC 0x004 /* Return in malloc'd memory. */ +#define DB_DBT_PARTIAL 0x008 /* Partial put/get. */ +#define DB_DBT_REALLOC 0x010 /* Return in realloc'd memory. */ +#define DB_DBT_USERMEM 0x020 /* Return in user's memory. */ +#define DB_DBT_DUPOK 0x040 /* Insert if duplicate. */ + u_int32_t flags; +}; + +/* + * Common flags -- + * Interfaces which use any of these common flags should never have + * interface specific flags in this range. + */ +#define DB_CREATE 0x000001 /* Create file as necessary. */ +#define DB_CXX_NO_EXCEPTIONS 0x000002 /* C++: return error values. */ +#define DB_FORCE 0x000004 /* Force (anything). */ +#define DB_NOMMAP 0x000008 /* Don't mmap underlying file. */ +#define DB_RDONLY 0x000010 /* Read-only (O_RDONLY). */ +#define DB_RECOVER 0x000020 /* Run normal recovery. */ +#define DB_THREAD 0x000040 /* Applications are threaded. */ +#define DB_TRUNCATE 0x000080 /* Discard existing DB (O_TRUNC). */ +#define DB_TXN_NOSYNC 0x000100 /* Do not sync log on commit. */ +#define DB_USE_ENVIRON 0x000200 /* Use the environment. */ +#define DB_USE_ENVIRON_ROOT 0x000400 /* Use the environment if root. */ + +/* + * Common flags -- + * Interfaces which use any of these common flags should never have + * interface specific flags in this range. + * + * DB_AUTO_COMMIT: + * DB_ENV->set_flags, DB->associate, DB->del, DB->put, DB->open, + * DB->remove, DB->rename, DB->truncate + * DB_DIRTY_READ: + * DB->cursor, DB->get, DB->join, DB->open, DBcursor->c_get, + * DB_ENV->txn_begin + * + * Shared flags up to 0x000400 */ +#define DB_AUTO_COMMIT 0x00800000 /* Implied transaction. */ +#define DB_DIRTY_READ 0x01000000 /* Dirty Read. */ + +/* + * Flags private to db_env_create. + */ +#define DB_CLIENT 0x000001 /* Open for a client environment. */ + +/* + * Flags private to db_create. + */ +#define DB_XA_CREATE 0x000001 /* Open in an XA environment. */ + +/* + * Flags private to DB_ENV->open. + * Shared flags up to 0x000400 */ +#define DB_INIT_CDB 0x000800 /* Concurrent Access Methods. */ +#define DB_INIT_LOCK 0x001000 /* Initialize locking. */ +#define DB_INIT_LOG 0x002000 /* Initialize logging. */ +#define DB_INIT_MPOOL 0x004000 /* Initialize mpool. */ +#define DB_INIT_TXN 0x008000 /* Initialize transactions. */ +#define DB_JOINENV 0x010000 /* Initialize all subsystems present. */ +#define DB_LOCKDOWN 0x020000 /* Lock memory into physical core. */ +#define DB_PRIVATE 0x040000 /* DB_ENV is process local. */ +#define DB_RECOVER_FATAL 0x080000 /* Run catastrophic recovery. */ +#define DB_SYSTEM_MEM 0x100000 /* Use system-backed memory. */ + +/* + * Flags private to DB->open. + * Shared flags up to 0x000400 */ +#define DB_EXCL 0x000800 /* Exclusive open (O_EXCL). */ +#define DB_FCNTL_LOCKING 0x001000 /* UNDOC: fcntl(2) locking. */ +#define DB_RDWRMASTER 0x002000 /* UNDOC: allow subdb master open R/W */ +#define DB_WRITEOPEN 0x004000 /* UNDOC: open with write lock. */ + +/* + * Flags private to DB_ENV->txn_begin. + * Shared flags up to 0x000400 */ +#define DB_TXN_NOWAIT 0x000800 /* Do not wait for locks in this TXN. */ +#define DB_TXN_SYNC 0x001000 /* Always sync log on commit. */ + +/* + * Flags private to DB_ENV->set_encrypt. + */ +#define DB_ENCRYPT_AES 0x000001 /* AES, assumes SHA1 checksum */ + +/* + * Flags private to DB_ENV->set_flags. + * Shared flags up to 0x000400 */ +#define DB_CDB_ALLDB 0x000800 /* Set CDB locking per environment. */ +#define DB_DIRECT_DB 0x001000 /* Don't buffer databases in the OS. */ +#define DB_DIRECT_LOG 0x002000 /* Don't buffer log files in the OS. */ +#define DB_NOLOCKING 0x004000 /* Set locking/mutex behavior. */ +#define DB_NOPANIC 0x008000 /* Set panic state per DB_ENV. */ +#define DB_OVERWRITE 0x010000 /* Overwrite unlinked region files. */ +#define DB_PANIC_ENVIRONMENT 0x020000 /* Set panic state per environment. */ +#define DB_REGION_INIT 0x040000 /* Page-fault regions on open. */ +#define DB_TXN_WRITE_NOSYNC 0x080000 /* Write, don't sync, on txn commit. */ +#define DB_YIELDCPU 0x100000 /* Yield the CPU (a lot). */ + +/* + * Flags private to DB->set_feedback's callback. + */ +#define DB_UPGRADE 0x000001 /* Upgrading. */ +#define DB_VERIFY 0x000002 /* Verifying. */ + +/* + * Flags private to DB_MPOOLFILE->open. + * Shared flags up to 0x000400 */ +#define DB_DIRECT 0x000800 /* Don't buffer the file in the OS. */ +#define DB_EXTENT 0x001000 /* UNDOC: dealing with an extent. */ +#define DB_ODDFILESIZE 0x002000 /* Truncate file to N * pgsize. */ + +/* + * Flags private to DB->set_flags. + */ +#define DB_CHKSUM_SHA1 0x000001 /* Use SHA1 checksumming */ +#define DB_DUP 0x000002 /* Btree, Hash: duplicate keys. */ +#define DB_DUPSORT 0x000004 /* Btree, Hash: duplicate keys. */ +#define DB_ENCRYPT 0x000008 /* Btree, Hash: duplicate keys. */ +#define DB_RECNUM 0x000010 /* Btree: record numbers. */ +#define DB_RENUMBER 0x000020 /* Recno: renumber on insert/delete. */ +#define DB_REVSPLITOFF 0x000040 /* Btree: turn off reverse splits. */ +#define DB_SNAPSHOT 0x000080 /* Recno: snapshot the input. */ + +/* + * Flags private to the DB->stat methods. + */ +#define DB_STAT_CLEAR 0x000001 /* Clear stat after returning values. */ + +/* + * Flags private to DB->join. + */ +#define DB_JOIN_NOSORT 0x000001 /* Don't try to optimize join. */ + +/* + * Flags private to DB->verify. + */ +#define DB_AGGRESSIVE 0x000001 /* Salvage whatever could be data.*/ +#define DB_NOORDERCHK 0x000002 /* Skip sort order/hashing check. */ +#define DB_ORDERCHKONLY 0x000004 /* Only perform the order check. */ +#define DB_PR_PAGE 0x000008 /* Show page contents (-da). */ +#define DB_PR_RECOVERYTEST 0x000010 /* Recovery test (-dr). */ +#define DB_PRINTABLE 0x000020 /* Use printable format for salvage. */ +#define DB_SALVAGE 0x000040 /* Salvage what looks like data. */ +/* + * !!! + * These must not go over 0x8000, or they will collide with the flags + * used by __bam_vrfy_subtree. + */ + +/* + * Flags private to DB->set_rep_transport's send callback. + */ +#define DB_REP_PERMANENT 0x0001 /* Important--app. may want to flush. */ + +/******************************************************* + * Locking. + *******************************************************/ +#define DB_LOCKVERSION 1 + +#define DB_FILE_ID_LEN 20 /* Unique file ID length. */ + +/* + * Deadlock detector modes; used in the DB_ENV structure to configure the + * locking subsystem. + */ +#define DB_LOCK_NORUN 0 +#define DB_LOCK_DEFAULT 1 /* Default policy. */ +#define DB_LOCK_EXPIRE 2 /* Only expire locks, no detection. */ +#define DB_LOCK_MAXLOCKS 3 /* Abort txn with maximum # of locks. */ +#define DB_LOCK_MINLOCKS 4 /* Abort txn with minimum # of locks. */ +#define DB_LOCK_MINWRITE 5 /* Abort txn with minimum writelocks. */ +#define DB_LOCK_OLDEST 6 /* Abort oldest transaction. */ +#define DB_LOCK_RANDOM 7 /* Abort random transaction. */ +#define DB_LOCK_YOUNGEST 8 /* Abort youngest transaction. */ + +/* Flag values for lock_vec(), lock_get(). */ +#define DB_LOCK_FREE_LOCKER 0x001 /* Internal: Free locker as well. */ +#define DB_LOCK_NOWAIT 0x002 /* Don't wait on unavailable lock. */ +#define DB_LOCK_RECORD 0x004 /* Internal: record lock. */ +#define DB_LOCK_REMOVE 0x008 /* Internal: flag object removed. */ +#define DB_LOCK_SET_TIMEOUT 0x010 /* Internal: set lock timeout. */ +#define DB_LOCK_SWITCH 0x020 /* Internal: switch existing lock. */ +#define DB_LOCK_UPGRADE 0x040 /* Internal: upgrade existing lock. */ + +/* + * Simple R/W lock modes and for multi-granularity intention locking. + * + * !!! + * These values are NOT random, as they are used as an index into the lock + * conflicts arrays, i.e., DB_LOCK_IWRITE must be == 3, and DB_LOCK_IREAD + * must be == 4. + */ +typedef enum { + DB_LOCK_NG=0, /* Not granted. */ + DB_LOCK_READ=1, /* Shared/read. */ + DB_LOCK_WRITE=2, /* Exclusive/write. */ + DB_LOCK_WAIT=3, /* Wait for event */ + DB_LOCK_IWRITE=4, /* Intent exclusive/write. */ + DB_LOCK_IREAD=5, /* Intent to share/read. */ + DB_LOCK_IWR=6, /* Intent to read and write. */ + DB_LOCK_DIRTY=7, /* Dirty Read. */ + DB_LOCK_WWRITE=8 /* Was Written. */ +} db_lockmode_t; + +/* + * Request types. + */ +typedef enum { + DB_LOCK_DUMP=0, /* Display held locks. */ + DB_LOCK_GET=1, /* Get the lock. */ + DB_LOCK_GET_TIMEOUT=2, /* Get lock with a timeout. */ + DB_LOCK_INHERIT=3, /* Pass locks to parent. */ + DB_LOCK_PUT=4, /* Release the lock. */ + DB_LOCK_PUT_ALL=5, /* Release locker's locks. */ + DB_LOCK_PUT_OBJ=6, /* Release locker's locks on obj. */ + DB_LOCK_PUT_READ=7, /* Release locker's read locks. */ + DB_LOCK_TIMEOUT=8, /* Force a txn to timeout. */ + DB_LOCK_TRADE=9, /* Trade locker ids on a lock. */ + DB_LOCK_UPGRADE_WRITE=10 /* Upgrade writes for dirty reads. */ +} db_lockop_t; + +/* + * Status of a lock. + */ +typedef enum { + DB_LSTAT_ABORTED=1, /* Lock belongs to an aborted txn. */ + DB_LSTAT_ERR=2, /* Lock is bad. */ + DB_LSTAT_EXPIRED=3, /* Lock has expired. */ + DB_LSTAT_FREE=4, /* Lock is unallocated. */ + DB_LSTAT_HELD=5, /* Lock is currently held. */ + DB_LSTAT_NOTEXIST=6, /* Object on which lock was waiting + * was removed */ + DB_LSTAT_PENDING=7, /* Lock was waiting and has been + * promoted; waiting for the owner + * to run and upgrade it to held. */ + DB_LSTAT_WAITING=8 /* Lock is on the wait queue. */ +}db_status_t; + +/* Lock statistics structure. */ +struct __db_lock_stat { + u_int32_t st_id; /* Last allocated locker ID. */ + u_int32_t st_cur_maxid; /* Current maximum unused ID. */ + u_int32_t st_maxlocks; /* Maximum number of locks in table. */ + u_int32_t st_maxlockers; /* Maximum num of lockers in table. */ + u_int32_t st_maxobjects; /* Maximum num of objects in table. */ + u_int32_t st_nmodes; /* Number of lock modes. */ + u_int32_t st_nlocks; /* Current number of locks. */ + u_int32_t st_maxnlocks; /* Maximum number of locks so far. */ + u_int32_t st_nlockers; /* Current number of lockers. */ + u_int32_t st_maxnlockers; /* Maximum number of lockers so far. */ + u_int32_t st_nobjects; /* Current number of objects. */ + u_int32_t st_maxnobjects; /* Maximum number of objects so far. */ + u_int32_t st_nconflicts; /* Number of lock conflicts. */ + u_int32_t st_nrequests; /* Number of lock gets. */ + u_int32_t st_nreleases; /* Number of lock puts. */ + u_int32_t st_nnowaits; /* Number of requests that would have + waited, but NOWAIT was set. */ + u_int32_t st_ndeadlocks; /* Number of lock deadlocks. */ + db_timeout_t st_locktimeout; /* Lock timeout. */ + u_int32_t st_nlocktimeouts; /* Number of lock timeouts. */ + db_timeout_t st_txntimeout; /* Transaction timeout. */ + u_int32_t st_ntxntimeouts; /* Number of transaction timeouts. */ + u_int32_t st_region_wait; /* Region lock granted after wait. */ + u_int32_t st_region_nowait; /* Region lock granted without wait. */ + u_int32_t st_regsize; /* Region size. */ +}; + +/* + * DB_LOCK_ILOCK -- + * Internal DB access method lock. + */ +struct __db_ilock { + db_pgno_t pgno; /* Page being locked. */ + u_int8_t fileid[DB_FILE_ID_LEN];/* File id. */ +#define DB_HANDLE_LOCK 1 +#define DB_RECORD_LOCK 2 +#define DB_PAGE_LOCK 3 +#define DB_TXN_LOCK 4 + u_int32_t type; /* Type of lock. */ +}; + +/* + * DB_LOCK -- + * The structure is allocated by the caller and filled in during a + * lock_get request (or a lock_vec/DB_LOCK_GET). + */ +struct __db_lock_u { + size_t off; /* Offset of the lock in the region */ + u_int32_t ndx; /* Index of the object referenced by + * this lock; used for locking. */ + u_int32_t gen; /* Generation number of this lock. */ + db_lockmode_t mode; /* mode of this lock. */ +}; + +/* Lock request structure. */ +struct __db_lockreq { + db_lockop_t op; /* Operation. */ + db_lockmode_t mode; /* Requested mode. */ + db_timeout_t timeout; /* Time to expire lock. */ + DBT *obj; /* Object being locked. */ + DB_LOCK lock; /* Lock returned. */ +}; + +/******************************************************* + * Logging. + *******************************************************/ +#define DB_LOGVERSION 7 /* Current log version. */ +#define DB_LOGOLDVER 7 /* Oldest log version supported. */ +#define DB_LOGMAGIC 0x040988 + +/* Flag values for log_archive(). */ +#define DB_ARCH_ABS 0x001 /* Absolute pathnames. */ +#define DB_ARCH_DATA 0x002 /* Data files. */ +#define DB_ARCH_LOG 0x004 /* Log files. */ + +/* + * A DB_LSN has two parts, a fileid which identifies a specific file, and an + * offset within that file. The fileid is an unsigned 4-byte quantity that + * uniquely identifies a file within the log directory -- currently a simple + * counter inside the log. The offset is also an unsigned 4-byte value. The + * log manager guarantees the offset is never more than 4 bytes by switching + * to a new log file before the maximum length imposed by an unsigned 4-byte + * offset is reached. + */ +struct __db_lsn { + u_int32_t file; /* File ID. */ + u_int32_t offset; /* File offset. */ +}; + +/* + * DB_LOGC -- + * Log cursor. + */ +struct __db_log_cursor { + DB_ENV *dbenv; /* Enclosing dbenv. */ + + DB_FH *c_fh; /* File handle. */ + DB_LSN c_lsn; /* Cursor: LSN */ + u_int32_t c_len; /* Cursor: record length */ + u_int32_t c_prev; /* Cursor: previous record's offset */ + + DBT c_dbt; /* Return DBT. */ + +#define DB_LOGC_BUF_SIZE (32 * 1024) + u_int8_t *bp; /* Allocated read buffer. */ + u_int32_t bp_size; /* Read buffer length in bytes. */ + u_int32_t bp_rlen; /* Read buffer valid data length. */ + DB_LSN bp_lsn; /* Read buffer first byte LSN. */ + + u_int32_t bp_maxrec; /* Max record length in the log file. */ + + /* Methods. */ + int (*close) __P((DB_LOGC *, u_int32_t)); + int (*get) __P((DB_LOGC *, DB_LSN *, DBT *, u_int32_t)); + +#define DB_LOG_DISK 0x01 /* Log record came from disk. */ +#define DB_LOG_LOCKED 0x02 /* Log region already locked */ +#define DB_LOG_SILENT_ERR 0x04 /* Turn-off error messages. */ + u_int32_t flags; +}; + +/* Log statistics structure. */ +struct __db_log_stat { + u_int32_t st_magic; /* Log file magic number. */ + u_int32_t st_version; /* Log file version number. */ + int st_mode; /* Log file mode. */ + u_int32_t st_lg_bsize; /* Log buffer size. */ + u_int32_t st_lg_size; /* Log file size. */ + u_int32_t st_w_bytes; /* Bytes to log. */ + u_int32_t st_w_mbytes; /* Megabytes to log. */ + u_int32_t st_wc_bytes; /* Bytes to log since checkpoint. */ + u_int32_t st_wc_mbytes; /* Megabytes to log since checkpoint. */ + u_int32_t st_wcount; /* Total writes to the log. */ + u_int32_t st_wcount_fill; /* Overflow writes to the log. */ + u_int32_t st_scount; /* Total syncs to the log. */ + u_int32_t st_region_wait; /* Region lock granted after wait. */ + u_int32_t st_region_nowait; /* Region lock granted without wait. */ + u_int32_t st_cur_file; /* Current log file number. */ + u_int32_t st_cur_offset; /* Current log file offset. */ + u_int32_t st_disk_file; /* Known on disk log file number. */ + u_int32_t st_disk_offset; /* Known on disk log file offset. */ + u_int32_t st_regsize; /* Region size. */ + u_int32_t st_maxcommitperflush; /* Max number of commits in a flush. */ + u_int32_t st_mincommitperflush; /* Min number of commits in a flush. */ +}; + +/******************************************************* + * Shared buffer cache (mpool). + *******************************************************/ +/* Flag values for DB_MPOOLFILE->get. */ +#define DB_MPOOL_CREATE 0x001 /* Create a page. */ +#define DB_MPOOL_LAST 0x002 /* Return the last page. */ +#define DB_MPOOL_NEW 0x004 /* Create a new page. */ + +/* Flag values for DB_MPOOLFILE->put, DB_MPOOLFILE->set. */ +#define DB_MPOOL_CLEAN 0x001 /* Page is not modified. */ +#define DB_MPOOL_DIRTY 0x002 /* Page is modified. */ +#define DB_MPOOL_DISCARD 0x004 /* Don't cache the page. */ + +/* Priority values for DB_MPOOLFILE->set_priority. */ +typedef enum { + DB_PRIORITY_VERY_LOW=1, + DB_PRIORITY_LOW=2, + DB_PRIORITY_DEFAULT=3, + DB_PRIORITY_HIGH=4, + DB_PRIORITY_VERY_HIGH=5 +} DB_CACHE_PRIORITY; + +/* Per-process DB_MPOOLFILE information. */ +struct __db_mpoolfile { + /* These fields need to be protected for multi-threaded support. */ + DB_MUTEX *mutexp; /* Structure thread lock. */ + + DB_FH *fhp; /* Underlying file handle. */ + + u_int32_t ref; /* Reference count. */ + + /* + * !!! + * The pinref and q fields are protected by the region lock, not the + * DB_MPOOLFILE structure mutex. We don't use the structure mutex + * because then I/O (which holds the structure lock held because of + * the race between the seek and write of the file descriptor) would + * block any other put/get calls using this DB_MPOOLFILE structure. + */ + u_int32_t pinref; /* Pinned block reference count. */ + + /* + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_ENTRY(__db_mpoolfile) q; + */ + struct { + struct __db_mpoolfile *tqe_next; + struct __db_mpoolfile **tqe_prev; + } q; /* Linked list of DB_MPOOLFILE's. */ + + /* + * These fields are not thread-protected because they are initialized + * when the file is opened and never modified. + */ + int ftype; /* File type. */ + DBT *pgcookie; /* Byte-string passed to pgin/pgout. */ + u_int8_t *fileid; /* Unique file ID. */ + int32_t lsn_offset; /* LSN offset in page. */ + u_int32_t clear_len; /* Cleared length on created pages. */ + + DB_MPOOL *dbmp; /* Overlying DB_MPOOL. */ + MPOOLFILE *mfp; /* Underlying MPOOLFILE. */ + + void *addr; /* Address of mmap'd region. */ + size_t len; /* Length of mmap'd region. */ + + /* Methods. */ + int (*close) __P((DB_MPOOLFILE *, u_int32_t)); + int (*get) __P((DB_MPOOLFILE *, db_pgno_t *, u_int32_t, void *)); + void (*get_fileid) __P((DB_MPOOLFILE *, u_int8_t *)); + void (*last_pgno) __P((DB_MPOOLFILE *, db_pgno_t *)); + int (*open)__P((DB_MPOOLFILE *, const char *, u_int32_t, int, size_t)); + int (*put) __P((DB_MPOOLFILE *, void *, u_int32_t)); + void (*refcnt) __P((DB_MPOOLFILE *, db_pgno_t *)); + int (*set) __P((DB_MPOOLFILE *, void *, u_int32_t)); + int (*set_clear_len) __P((DB_MPOOLFILE *, u_int32_t)); + int (*set_fileid) __P((DB_MPOOLFILE *, u_int8_t *)); + int (*set_ftype) __P((DB_MPOOLFILE *, int)); + int (*set_lsn_offset) __P((DB_MPOOLFILE *, int32_t)); + int (*set_pgcookie) __P((DB_MPOOLFILE *, DBT *)); + int (*set_priority) __P((DB_MPOOLFILE *, DB_CACHE_PRIORITY)); + void (*set_unlink) __P((DB_MPOOLFILE *, int)); + int (*sync) __P((DB_MPOOLFILE *)); + + /* + * MP_OPEN_CALLED and MP_READONLY do not need to be thread protected + * because they are initialized when the file is opened, and never + * modified. + * + * MP_FLUSH, MP_UPGRADE and MP_UPGRADE_FAIL are thread protected + * becase they are potentially read by multiple threads of control. + */ +#define MP_FLUSH 0x001 /* Was opened to flush a buffer. */ +#define MP_OPEN_CALLED 0x002 /* File opened. */ +#define MP_READONLY 0x004 /* File is readonly. */ +#define MP_UPGRADE 0x008 /* File descriptor is readwrite. */ +#define MP_UPGRADE_FAIL 0x010 /* Upgrade wasn't possible. */ + u_int32_t flags; +}; + +/* + * Mpool statistics structure. + */ +struct __db_mpool_stat { + u_int32_t st_gbytes; /* Total cache size: GB. */ + u_int32_t st_bytes; /* Total cache size: B. */ + u_int32_t st_ncache; /* Number of caches. */ + u_int32_t st_regsize; /* Cache size. */ + u_int32_t st_map; /* Pages from mapped files. */ + u_int32_t st_cache_hit; /* Pages found in the cache. */ + u_int32_t st_cache_miss; /* Pages not found in the cache. */ + u_int32_t st_page_create; /* Pages created in the cache. */ + u_int32_t st_page_in; /* Pages read in. */ + u_int32_t st_page_out; /* Pages written out. */ + u_int32_t st_ro_evict; /* Clean pages forced from the cache. */ + u_int32_t st_rw_evict; /* Dirty pages forced from the cache. */ + u_int32_t st_page_trickle; /* Pages written by memp_trickle. */ + u_int32_t st_pages; /* Total number of pages. */ + u_int32_t st_page_clean; /* Clean pages. */ + u_int32_t st_page_dirty; /* Dirty pages. */ + u_int32_t st_hash_buckets; /* Number of hash buckets. */ + u_int32_t st_hash_searches; /* Total hash chain searches. */ + u_int32_t st_hash_longest; /* Longest hash chain searched. */ + u_int32_t st_hash_examined; /* Total hash entries searched. */ + u_int32_t st_hash_nowait; /* Hash lock granted with nowait. */ + u_int32_t st_hash_wait; /* Hash lock granted after wait. */ + u_int32_t st_hash_max_wait; /* Max hash lock granted after wait. */ + u_int32_t st_region_nowait; /* Region lock granted with nowait. */ + u_int32_t st_region_wait; /* Region lock granted after wait. */ + u_int32_t st_alloc; /* Number of page allocations. */ + u_int32_t st_alloc_buckets; /* Buckets checked during allocation. */ + u_int32_t st_alloc_max_buckets; /* Max checked during allocation. */ + u_int32_t st_alloc_pages; /* Pages checked during allocation. */ + u_int32_t st_alloc_max_pages; /* Max checked during allocation. */ +}; + +/* Mpool file statistics structure. */ +struct __db_mpool_fstat { + char *file_name; /* File name. */ + size_t st_pagesize; /* Page size. */ + u_int32_t st_map; /* Pages from mapped files. */ + u_int32_t st_cache_hit; /* Pages found in the cache. */ + u_int32_t st_cache_miss; /* Pages not found in the cache. */ + u_int32_t st_page_create; /* Pages created in the cache. */ + u_int32_t st_page_in; /* Pages read in. */ + u_int32_t st_page_out; /* Pages written out. */ +}; + +/******************************************************* + * Transactions and recovery. + *******************************************************/ +#define DB_TXNVERSION 1 + +typedef enum { + DB_TXN_ABORT=0, /* Public. */ + DB_TXN_APPLY=1, /* Public. */ + DB_TXN_BACKWARD_ALLOC=2, /* Internal. */ + DB_TXN_BACKWARD_ROLL=3, /* Public. */ + DB_TXN_FORWARD_ROLL=4, /* Public. */ + DB_TXN_GETPGNOS=5, /* Internal. */ + DB_TXN_OPENFILES=6, /* Internal. */ + DB_TXN_POPENFILES=7, /* Internal. */ + DB_TXN_PRINT=8 /* Public. */ +} db_recops; + +/* + * BACKWARD_ALLOC is used during the forward pass to pick up any aborted + * allocations for files that were created during the forward pass. + * The main difference between _ALLOC and _ROLL is that the entry for + * the file not exist during the rollforward pass. + */ +#define DB_UNDO(op) ((op) == DB_TXN_ABORT || \ + (op) == DB_TXN_BACKWARD_ROLL || (op) == DB_TXN_BACKWARD_ALLOC) +#define DB_REDO(op) ((op) == DB_TXN_FORWARD_ROLL || (op) == DB_TXN_APPLY) + +struct __db_txn { + DB_TXNMGR *mgrp; /* Pointer to transaction manager. */ + DB_TXN *parent; /* Pointer to transaction's parent. */ + DB_LSN last_lsn; /* Lsn of last log write. */ + u_int32_t txnid; /* Unique transaction id. */ + roff_t off; /* Detail structure within region. */ + db_timeout_t lock_timeout; /* Timeout for locks for this txn. */ + db_timeout_t expire; /* Time this txn expires. */ + void *txn_list; /* Undo information for parent. */ + + /* + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_ENTRY(__db_txn) links; + */ + struct { + struct __db_txn *tqe_next; + struct __db_txn **tqe_prev; + } links; /* Links transactions off manager. */ + + /* + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_HEAD(__events, __txn_event) events; + */ + struct { + struct __txn_event *tqh_first; + struct __txn_event **tqh_last; + } events; + + /* + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_HEAD(__kids, __db_txn) kids; + */ + struct __kids { + struct __db_txn *tqh_first; + struct __db_txn **tqh_last; + } kids; + + /* + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_ENTRY(__db_txn) klinks; + */ + struct { + struct __db_txn *tqe_next; + struct __db_txn **tqe_prev; + } klinks; + + /* API-private structure: used by C++ */ + void *api_internal; + + u_int32_t cursors; /* Number of cursors open for txn */ + + /* Methods. */ + int (*abort) __P((DB_TXN *)); + int (*commit) __P((DB_TXN *, u_int32_t)); + int (*discard) __P((DB_TXN *, u_int32_t)); + u_int32_t (*id) __P((DB_TXN *)); + int (*prepare) __P((DB_TXN *, u_int8_t *)); + int (*set_timeout) __P((DB_TXN *, db_timeout_t, u_int32_t)); + +#define TXN_CHILDCOMMIT 0x01 /* Transaction that has committed. */ +#define TXN_COMPENSATE 0x02 /* Compensating transaction. */ +#define TXN_DIRTY_READ 0x04 /* Transaction does dirty reads. */ +#define TXN_LOCKTIMEOUT 0x08 /* Transaction has a lock timeout. */ +#define TXN_MALLOC 0x10 /* Structure allocated by TXN system. */ +#define TXN_NOSYNC 0x20 /* Do not sync on prepare and commit. */ +#define TXN_NOWAIT 0x40 /* Do not wait on locks. */ +#define TXN_SYNC 0x80 /* Sync on prepare and commit. */ + u_int32_t flags; +}; + +/* Transaction statistics structure. */ +struct __db_txn_active { + u_int32_t txnid; /* Transaction ID */ + u_int32_t parentid; /* Transaction ID of parent */ + DB_LSN lsn; /* LSN when transaction began */ +}; + +struct __db_txn_stat { + DB_LSN st_last_ckp; /* lsn of the last checkpoint */ + time_t st_time_ckp; /* time of last checkpoint */ + u_int32_t st_last_txnid; /* last transaction id given out */ + u_int32_t st_maxtxns; /* maximum txns possible */ + u_int32_t st_naborts; /* number of aborted transactions */ + u_int32_t st_nbegins; /* number of begun transactions */ + u_int32_t st_ncommits; /* number of committed transactions */ + u_int32_t st_nactive; /* number of active transactions */ + u_int32_t st_nrestores; /* number of restored transactions + after recovery. */ + u_int32_t st_maxnactive; /* maximum active transactions */ + DB_TXN_ACTIVE *st_txnarray; /* array of active transactions */ + u_int32_t st_region_wait; /* Region lock granted after wait. */ + u_int32_t st_region_nowait; /* Region lock granted without wait. */ + u_int32_t st_regsize; /* Region size. */ +}; + +/* + * Structure used for two phase commit interface. Berkeley DB support for two + * phase commit is compatible with the X/open XA interface. The xa #define + * XIDDATASIZE defines the size of a global transaction ID. We have our own + * version here which must have the same value. + */ +#define DB_XIDDATASIZE 128 +struct __db_preplist { + DB_TXN *txn; + u_int8_t gid[DB_XIDDATASIZE]; +}; + +/******************************************************* + * Replication. + *******************************************************/ +/* Special, out-of-band environment IDs. */ +#define DB_EID_BROADCAST -1 +#define DB_EID_INVALID -2 + +/* rep_start flags values */ +#define DB_REP_CLIENT 0x001 +#define DB_REP_LOGSONLY 0x002 +#define DB_REP_MASTER 0x004 + +/* Replication statistics. */ +struct __db_rep_stat { + /* !!! + * Many replication statistics fields cannot be protected by a mutex + * without an unacceptable performance penalty, since most message + * processing is done without the need to hold a region-wide lock. + * Fields whose comments end with a '+' may be updated without holding + * the replication or log mutexes (as appropriate), and thus may be + * off somewhat (or, on unreasonable architectures under unlucky + * circumstances, garbaged). + */ + u_int32_t st_status; /* Current replication status. */ + DB_LSN st_next_lsn; /* Next LSN to use or expect. */ + DB_LSN st_waiting_lsn; /* LSN we're awaiting, if any. */ + + u_int32_t st_dupmasters; /* # of times a duplicate master + condition was detected.+ */ + int st_env_id; /* Current environment ID. */ + int st_env_priority; /* Current environment priority. */ + u_int32_t st_gen; /* Current generation number. */ + u_int32_t st_log_duplicated; /* Log records received multiply.+ */ + u_int32_t st_log_queued; /* Log records currently queued.+ */ + u_int32_t st_log_queued_max; /* Max. log records queued at once.+ */ + u_int32_t st_log_queued_total; /* Total # of log recs. ever queued.+ */ + u_int32_t st_log_records; /* Log records received and put.+ */ + u_int32_t st_log_requested; /* Log recs. missed and requested.+ */ + int st_master; /* Env. ID of the current master. */ + u_int32_t st_master_changes; /* # of times we've switched masters. */ + u_int32_t st_msgs_badgen; /* Messages with a bad generation #.+ */ + u_int32_t st_msgs_processed; /* Messages received and processed.+ */ + u_int32_t st_msgs_recover; /* Messages ignored because this site + was a client in recovery.+ */ + u_int32_t st_msgs_send_failures;/* # of failed message sends.+ */ + u_int32_t st_msgs_sent; /* # of successful message sends.+ */ + u_int32_t st_newsites; /* # of NEWSITE msgs. received.+ */ + int st_nsites; /* Current number of sites we will + assume during elections. */ + u_int32_t st_nthrottles; /* # of times we were throttled. */ + u_int32_t st_outdated; /* # of times we detected and returned + an OUTDATED condition.+ */ + u_int32_t st_txns_applied; /* # of transactions applied.+ */ + + /* Elections generally. */ + u_int32_t st_elections; /* # of elections held.+ */ + u_int32_t st_elections_won; /* # of elections won by this site.+ */ + + /* Statistics about an in-progress election. */ + int st_election_cur_winner; /* Current front-runner. */ + u_int32_t st_election_gen; /* Election generation number. */ + DB_LSN st_election_lsn; /* Max. LSN of current winner. */ + int st_election_nsites; /* # of "registered voters". */ + int st_election_priority; /* Current election priority. */ + int st_election_status; /* Current election status. */ + int st_election_tiebreaker; /* Election tiebreaker value. */ + int st_election_votes; /* Votes received in this round. */ +}; + +/******************************************************* + * Access methods. + *******************************************************/ +typedef enum { + DB_BTREE=1, + DB_HASH=2, + DB_RECNO=3, + DB_QUEUE=4, + DB_UNKNOWN=5 /* Figure it out on open. */ +} DBTYPE; + +#define DB_RENAMEMAGIC 0x030800 /* File has been renamed. */ + +#define DB_BTREEVERSION 9 /* Current btree version. */ +#define DB_BTREEOLDVER 8 /* Oldest btree version supported. */ +#define DB_BTREEMAGIC 0x053162 + +#define DB_HASHVERSION 8 /* Current hash version. */ +#define DB_HASHOLDVER 7 /* Oldest hash version supported. */ +#define DB_HASHMAGIC 0x061561 + +#define DB_QAMVERSION 4 /* Current queue version. */ +#define DB_QAMOLDVER 3 /* Oldest queue version supported. */ +#define DB_QAMMAGIC 0x042253 + +/* + * DB access method and cursor operation values. Each value is an operation + * code to which additional bit flags are added. + */ +#define DB_AFTER 1 /* c_put() */ +#define DB_APPEND 2 /* put() */ +#define DB_BEFORE 3 /* c_put() */ +#define DB_CACHED_COUNTS 4 /* stat() */ +#define DB_COMMIT 5 /* log_put() (internal) */ +#define DB_CONSUME 6 /* get() */ +#define DB_CONSUME_WAIT 7 /* get() */ +#define DB_CURRENT 8 /* c_get(), c_put(), DB_LOGC->get() */ +#define DB_FAST_STAT 9 /* stat() */ +#define DB_FIRST 10 /* c_get(), DB_LOGC->get() */ +#define DB_GET_BOTH 11 /* get(), c_get() */ +#define DB_GET_BOTHC 12 /* c_get() (internal) */ +#define DB_GET_BOTH_RANGE 13 /* get(), c_get() */ +#define DB_GET_RECNO 14 /* c_get() */ +#define DB_JOIN_ITEM 15 /* c_get(); do not do primary lookup */ +#define DB_KEYFIRST 16 /* c_put() */ +#define DB_KEYLAST 17 /* c_put() */ +#define DB_LAST 18 /* c_get(), DB_LOGC->get() */ +#define DB_NEXT 19 /* c_get(), DB_LOGC->get() */ +#define DB_NEXT_DUP 20 /* c_get() */ +#define DB_NEXT_NODUP 21 /* c_get() */ +#define DB_NODUPDATA 22 /* put(), c_put() */ +#define DB_NOOVERWRITE 23 /* put() */ +#define DB_NOSYNC 24 /* close() */ +#define DB_POSITION 25 /* c_dup() */ +#define DB_POSITIONI 26 /* c_dup() (internal) */ +#define DB_PREV 27 /* c_get(), DB_LOGC->get() */ +#define DB_PREV_NODUP 28 /* c_get(), DB_LOGC->get() */ +#define DB_RECORDCOUNT 29 /* stat() */ +#define DB_SET 30 /* c_get(), DB_LOGC->get() */ +#define DB_SET_LOCK_TIMEOUT 31 /* set_timout() */ +#define DB_SET_RANGE 32 /* c_get() */ +#define DB_SET_RECNO 33 /* get(), c_get() */ +#define DB_SET_TXN_NOW 34 /* set_timout() (internal) */ +#define DB_SET_TXN_TIMEOUT 35 /* set_timout() */ +#define DB_UPDATE_SECONDARY 36 /* c_get(), c_del() (internal) */ +#define DB_WRITECURSOR 37 /* cursor() */ +#define DB_WRITELOCK 38 /* cursor() (internal) */ + +/* This has to change when the max opcode hits 255. */ +#define DB_OPFLAGS_MASK 0x000000ff /* Mask for operations flags. */ +/* DB_DIRTY_READ 0x01000000 Dirty Read. */ +#define DB_FLUSH 0x02000000 /* Flush data to disk. */ +#define DB_MULTIPLE 0x04000000 /* Return multiple data values. */ +#define DB_MULTIPLE_KEY 0x08000000 /* Return multiple data/key pairs. */ +#define DB_NOCOPY 0x10000000 /* Don't copy data */ +#define DB_PERMANENT 0x20000000 /* Flag record with REP_PERMANENT. */ +#define DB_RMW 0x40000000 /* Acquire write flag immediately. */ +#define DB_WRNOSYNC 0x80000000 /* Private: write, don't sync log_put */ + +/* + * DB (user visible) error return codes. + * + * !!! + * For source compatibility with DB 2.X deadlock return (EAGAIN), use the + * following: + * #include <errno.h> + * #define DB_LOCK_DEADLOCK EAGAIN + * + * !!! + * We don't want our error returns to conflict with other packages where + * possible, so pick a base error value that's hopefully not common. We + * document that we own the error name space from -30,800 to -30,999. + */ +/* DB (public) error return codes. */ +#define DB_DONOTINDEX (-30999)/* "Null" return from 2ndary callbk. */ +#define DB_KEYEMPTY (-30998)/* Key/data deleted or never created. */ +#define DB_KEYEXIST (-30997)/* The key/data pair already exists. */ +#define DB_LOCK_DEADLOCK (-30996)/* Deadlock. */ +#define DB_LOCK_NOTGRANTED (-30995)/* Lock unavailable. */ +#define DB_NOSERVER (-30994)/* Server panic return. */ +#define DB_NOSERVER_HOME (-30993)/* Bad home sent to server. */ +#define DB_NOSERVER_ID (-30992)/* Bad ID sent to server. */ +#define DB_NOTFOUND (-30991)/* Key/data pair not found (EOF). */ +#define DB_OLD_VERSION (-30990)/* Out-of-date version. */ +#define DB_PAGE_NOTFOUND (-30989)/* Requested page not found. */ +#define DB_REP_DUPMASTER (-30988)/* There are two masters. */ +#define DB_REP_HOLDELECTION (-30987)/* Time to hold an election. */ +#define DB_REP_NEWMASTER (-30986)/* We have learned of a new master. */ +#define DB_REP_NEWSITE (-30985)/* New site entered system. */ +#define DB_REP_OUTDATED (-30984)/* Site is too far behind master. */ +#define DB_REP_UNAVAIL (-30983)/* Site cannot currently be reached. */ +#define DB_RUNRECOVERY (-30982)/* Panic return. */ +#define DB_SECONDARY_BAD (-30981)/* Secondary index corrupt. */ +#define DB_VERIFY_BAD (-30980)/* Verify failed; bad format. */ + +/* DB (private) error return codes. */ +#define DB_ALREADY_ABORTED (-30899) +#define DB_DELETED (-30898)/* Recovery file marked deleted. */ +#define DB_JAVA_CALLBACK (-30897)/* Exception during a java callback. */ +#define DB_LOCK_NOTEXIST (-30896)/* Object to lock is gone. */ +#define DB_NEEDSPLIT (-30895)/* Page needs to be split. */ +#define DB_SURPRISE_KID (-30894)/* Child commit where parent + didn't know it was a parent. */ +#define DB_SWAPBYTES (-30893)/* Database needs byte swapping. */ +#define DB_TIMEOUT (-30892)/* Timed out waiting for election. */ +#define DB_TXN_CKP (-30891)/* Encountered ckp record in log. */ +#define DB_VERIFY_FATAL (-30890)/* DB->verify cannot proceed. */ + +/* Database handle. */ +struct __db { + /******************************************************* + * Public: owned by the application. + *******************************************************/ + u_int32_t pgsize; /* Database logical page size. */ + + /* Callbacks. */ + int (*db_append_recno) __P((DB *, DBT *, db_recno_t)); + void (*db_feedback) __P((DB *, int, int)); + int (*dup_compare) __P((DB *, const DBT *, const DBT *)); + + void *app_private; /* Application-private handle. */ + + /******************************************************* + * Private: owned by DB. + *******************************************************/ + DB_ENV *dbenv; /* Backing environment. */ + + DBTYPE type; /* DB access method type. */ + + DB_MPOOLFILE *mpf; /* Backing buffer pool. */ + DB_CACHE_PRIORITY priority; /* Priority in the buffer pool. */ + + DB_MUTEX *mutexp; /* Synchronization for free threading */ + + u_int8_t fileid[DB_FILE_ID_LEN];/* File's unique ID for locking. */ + + u_int32_t adj_fileid; /* File's unique ID for curs. adj. */ + +#define DB_LOGFILEID_INVALID -1 + FNAME *log_filename; /* File's naming info for logging. */ + + db_pgno_t meta_pgno; /* Meta page number */ + u_int32_t lid; /* Locker id for handle locking. */ + u_int32_t cur_lid; /* Current handle lock holder. */ + u_int32_t associate_lid; /* Locker id for DB->associate call. */ + DB_LOCK handle_lock; /* Lock held on this handle. */ + + long cl_id; /* RPC: remote client id. */ + + /* + * Returned data memory for DB->get() and friends. + */ + DBT my_rskey; /* Secondary key. */ + DBT my_rkey; /* [Primary] key. */ + DBT my_rdata; /* Data. */ + + /* + * !!! + * Some applications use DB but implement their own locking outside of + * DB. If they're using fcntl(2) locking on the underlying database + * file, and we open and close a file descriptor for that file, we will + * discard their locks. The DB_FCNTL_LOCKING flag to DB->open is an + * undocumented interface to support this usage which leaves any file + * descriptors we open until DB->close. This will only work with the + * DB->open interface and simple caches, e.g., creating a transaction + * thread may open/close file descriptors this flag doesn't protect. + * Locking with fcntl(2) on a file that you don't own is a very, very + * unsafe thing to do. 'Nuff said. + */ + DB_FH *saved_open_fhp; /* Saved file handle. */ + + /* + * Linked list of DBP's, linked from the DB_ENV, used to keep track + * of all open db handles for cursor adjustment. + * + * !!! + * Explicit representations of structures from queue.h. + * LIST_ENTRY(__db) dblistlinks; + */ + struct { + struct __db *le_next; + struct __db **le_prev; + } dblistlinks; + + /* + * Cursor queues. + * + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_HEAD(__cq_fq, __dbc) free_queue; + * TAILQ_HEAD(__cq_aq, __dbc) active_queue; + * TAILQ_HEAD(__cq_jq, __dbc) join_queue; + */ + struct __cq_fq { + struct __dbc *tqh_first; + struct __dbc **tqh_last; + } free_queue; + struct __cq_aq { + struct __dbc *tqh_first; + struct __dbc **tqh_last; + } active_queue; + struct __cq_jq { + struct __dbc *tqh_first; + struct __dbc **tqh_last; + } join_queue; + + /* + * Secondary index support. + * + * Linked list of secondary indices -- set in the primary. + * + * !!! + * Explicit representations of structures from queue.h. + * LIST_HEAD(s_secondaries, __db); + */ + struct { + struct __db *lh_first; + } s_secondaries; + + /* + * List entries for secondaries, and reference count of how + * many threads are updating this secondary (see __db_c_put). + * + * !!! + * Note that these are synchronized by the primary's mutex, but + * filled in in the secondaries. + * + * !!! + * Explicit representations of structures from queue.h. + * LIST_ENTRY(__db) s_links; + */ + struct { + struct __db *le_next; + struct __db **le_prev; + } s_links; + u_int32_t s_refcnt; + + /* Secondary callback and free functions -- set in the secondary. */ + int (*s_callback) __P((DB *, const DBT *, const DBT *, DBT *)); + + /* Reference to primary -- set in the secondary. */ + DB *s_primary; + + /* API-private structure: used by DB 1.85, C++, Java, Perl and Tcl */ + void *api_internal; + + /* Subsystem-private structure. */ + void *bt_internal; /* Btree/Recno access method. */ + void *h_internal; /* Hash access method. */ + void *q_internal; /* Queue access method. */ + void *xa_internal; /* XA. */ + + /* Methods. */ + int (*associate) __P((DB *, DB_TXN *, DB *, int (*)(DB *, const DBT *, + const DBT *, DBT *), u_int32_t)); + int (*close) __P((DB *, u_int32_t)); + int (*cursor) __P((DB *, DB_TXN *, DBC **, u_int32_t)); + int (*del) __P((DB *, DB_TXN *, DBT *, u_int32_t)); + void (*err) __P((DB *, int, const char *, ...)); + void (*errx) __P((DB *, const char *, ...)); + int (*fd) __P((DB *, int *)); + int (*get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); + int (*pget) __P((DB *, DB_TXN *, DBT *, DBT *, DBT *, u_int32_t)); + int (*get_byteswapped) __P((DB *, int *)); + int (*get_type) __P((DB *, DBTYPE *)); + int (*join) __P((DB *, DBC **, DBC **, u_int32_t)); + int (*key_range) __P((DB *, + DB_TXN *, DBT *, DB_KEY_RANGE *, u_int32_t)); + int (*open) __P((DB *, DB_TXN *, + const char *, const char *, DBTYPE, u_int32_t, int)); + int (*put) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); + int (*remove) __P((DB *, const char *, const char *, u_int32_t)); + int (*rename) __P((DB *, + const char *, const char *, const char *, u_int32_t)); + int (*truncate) __P((DB *, DB_TXN *, u_int32_t *, u_int32_t)); + int (*set_append_recno) __P((DB *, int (*)(DB *, DBT *, db_recno_t))); + int (*set_alloc) __P((DB *, void *(*)(size_t), + void *(*)(void *, size_t), void (*)(void *))); + int (*set_cachesize) __P((DB *, u_int32_t, u_int32_t, int)); + int (*set_cache_priority) __P((DB *, DB_CACHE_PRIORITY)); + int (*set_dup_compare) __P((DB *, + int (*)(DB *, const DBT *, const DBT *))); + int (*set_encrypt) __P((DB *, const char *, u_int32_t)); + void (*set_errcall) __P((DB *, void (*)(const char *, char *))); + void (*set_errfile) __P((DB *, FILE *)); + void (*set_errpfx) __P((DB *, const char *)); + int (*set_feedback) __P((DB *, void (*)(DB *, int, int))); + int (*set_flags) __P((DB *, u_int32_t)); + int (*set_lorder) __P((DB *, int)); + int (*set_pagesize) __P((DB *, u_int32_t)); + int (*set_paniccall) __P((DB *, void (*)(DB_ENV *, int))); + int (*stat) __P((DB *, void *, u_int32_t)); + int (*sync) __P((DB *, u_int32_t)); + int (*upgrade) __P((DB *, const char *, u_int32_t)); + int (*verify) __P((DB *, + const char *, const char *, FILE *, u_int32_t)); + + int (*set_bt_compare) __P((DB *, + int (*)(DB *, const DBT *, const DBT *))); + int (*set_bt_maxkey) __P((DB *, u_int32_t)); + int (*set_bt_minkey) __P((DB *, u_int32_t)); + int (*set_bt_prefix) __P((DB *, + size_t (*)(DB *, const DBT *, const DBT *))); + + int (*set_h_ffactor) __P((DB *, u_int32_t)); + int (*set_h_hash) __P((DB *, + u_int32_t (*)(DB *, const void *, u_int32_t))); + int (*set_h_nelem) __P((DB *, u_int32_t)); + + int (*set_re_delim) __P((DB *, int)); + int (*set_re_len) __P((DB *, u_int32_t)); + int (*set_re_pad) __P((DB *, int)); + int (*set_re_source) __P((DB *, const char *)); + int (*set_q_extentsize) __P((DB *, u_int32_t)); + + int (*db_am_remove) __P((DB *, + DB_TXN *, const char *, const char *, DB_LSN *)); + int (*db_am_rename) __P((DB *, DB_TXN *, + const char *, const char *, const char *)); + + /* + * Never called; these are a place to save function pointers + * so that we can undo an associate. + */ + int (*stored_get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); + int (*stored_close) __P((DB *, u_int32_t)); + +#define DB_OK_BTREE 0x01 +#define DB_OK_HASH 0x02 +#define DB_OK_QUEUE 0x04 +#define DB_OK_RECNO 0x08 + u_int32_t am_ok; /* Legal AM choices. */ + +#define DB_AM_CHKSUM 0x00000001 /* Checksumming. */ +#define DB_AM_CL_WRITER 0x00000002 /* Allow writes in client replica. */ +#define DB_AM_COMPENSATE 0x00000004 /* Created by compensating txn. */ +#define DB_AM_CREATED 0x00000008 /* Database was created upon open. */ +#define DB_AM_CREATED_MSTR 0x00000010 /* Encompassing file was created. */ +#define DB_AM_DBM_ERROR 0x00000020 /* Error in DBM/NDBM database. */ +#define DB_AM_DELIMITER 0x00000040 /* Variable length delimiter set. */ +#define DB_AM_DIRTY 0x00000080 /* Support Dirty Reads. */ +#define DB_AM_DISCARD 0x00000100 /* Discard any cached pages. */ +#define DB_AM_DUP 0x00000200 /* DB_DUP. */ +#define DB_AM_DUPSORT 0x00000400 /* DB_DUPSORT. */ +#define DB_AM_ENCRYPT 0x00000800 /* Encryption. */ +#define DB_AM_FIXEDLEN 0x00001000 /* Fixed-length records. */ +#define DB_AM_INMEM 0x00002000 /* In-memory; no sync on close. */ +#define DB_AM_IN_RENAME 0x00004000 /* File is being renamed. */ +#define DB_AM_OPEN_CALLED 0x00008000 /* DB->open called. */ +#define DB_AM_PAD 0x00010000 /* Fixed-length record pad. */ +#define DB_AM_PGDEF 0x00020000 /* Page size was defaulted. */ +#define DB_AM_RDONLY 0x00040000 /* Database is readonly. */ +#define DB_AM_RECNUM 0x00080000 /* DB_RECNUM. */ +#define DB_AM_RECOVER 0x00100000 /* DB opened by recovery routine. */ +#define DB_AM_RENUMBER 0x00200000 /* DB_RENUMBER. */ +#define DB_AM_REVSPLITOFF 0x00400000 /* DB_REVSPLITOFF. */ +#define DB_AM_SECONDARY 0x00800000 /* Database is a secondary index. */ +#define DB_AM_SNAPSHOT 0x01000000 /* DB_SNAPSHOT. */ +#define DB_AM_SUBDB 0x02000000 /* Subdatabases supported. */ +#define DB_AM_SWAP 0x04000000 /* Pages need to be byte-swapped. */ +#define DB_AM_TXN 0x08000000 /* Opened in a transaction. */ +#define DB_AM_VERIFYING 0x10000000 /* DB handle is in the verifier. */ + u_int32_t flags; +}; + +/* + * Macros for bulk get. Note that wherever we use a DBT *, we explicitly + * cast it; this allows the same macros to work with C++ Dbt *'s, as Dbt + * is a subclass of struct DBT in C++. + */ +#define DB_MULTIPLE_INIT(pointer, dbt) \ + (pointer = (u_int8_t *)((DBT *)(dbt))->data + \ + ((DBT *)(dbt))->ulen - sizeof(u_int32_t)) +#define DB_MULTIPLE_NEXT(pointer, dbt, retdata, retdlen) \ + do { \ + if (*((u_int32_t *)(pointer)) == (u_int32_t)-1) { \ + retdata = NULL; \ + pointer = NULL; \ + break; \ + } \ + retdata = (u_int8_t *) \ + ((DBT *)(dbt))->data + *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retdlen = *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + if (retdlen == 0 && \ + retdata == (u_int8_t *)((DBT *)(dbt))->data) \ + retdata = NULL; \ + } while (0) +#define DB_MULTIPLE_KEY_NEXT(pointer, dbt, retkey, retklen, retdata, retdlen) \ + do { \ + if (*((u_int32_t *)(pointer)) == (u_int32_t)-1) { \ + retdata = NULL; \ + retkey = NULL; \ + pointer = NULL; \ + break; \ + } \ + retkey = (u_int8_t *) \ + ((DBT *)(dbt))->data + *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retklen = *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retdata = (u_int8_t *) \ + ((DBT *)(dbt))->data + *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retdlen = *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + } while (0) + +#define DB_MULTIPLE_RECNO_NEXT(pointer, dbt, recno, retdata, retdlen) \ + do { \ + if (*((u_int32_t *)(pointer)) == (u_int32_t)0) { \ + recno = 0; \ + retdata = NULL; \ + pointer = NULL; \ + break; \ + } \ + recno = *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retdata = (u_int8_t *) \ + ((DBT *)(dbt))->data + *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + retdlen = *(u_int32_t *)(pointer); \ + (pointer) = (u_int32_t *)(pointer) - 1; \ + } while (0) + +/******************************************************* + * Access method cursors. + *******************************************************/ +struct __dbc { + DB *dbp; /* Related DB access method. */ + DB_TXN *txn; /* Associated transaction. */ + + /* + * Active/free cursor queues. + * + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_ENTRY(__dbc) links; + */ + struct { + DBC *tqe_next; + DBC **tqe_prev; + } links; + + /* + * The DBT *'s below are used by the cursor routines to return + * data to the user when DBT flags indicate that DB should manage + * the returned memory. They point at a DBT containing the buffer + * and length that will be used, and "belonging" to the handle that + * should "own" this memory. This may be a "my_*" field of this + * cursor--the default--or it may be the corresponding field of + * another cursor, a DB handle, a join cursor, etc. In general, it + * will be whatever handle the user originally used for the current + * DB interface call. + */ + DBT *rskey; /* Returned secondary key. */ + DBT *rkey; /* Returned [primary] key. */ + DBT *rdata; /* Returned data. */ + + DBT my_rskey; /* Space for returned secondary key. */ + DBT my_rkey; /* Space for returned [primary] key. */ + DBT my_rdata; /* Space for returned data. */ + + u_int32_t lid; /* Default process' locker id. */ + u_int32_t locker; /* Locker for this operation. */ + DBT lock_dbt; /* DBT referencing lock. */ + DB_LOCK_ILOCK lock; /* Object to be locked. */ + DB_LOCK mylock; /* Lock held on this cursor. */ + + long cl_id; /* Remote client id. */ + + DBTYPE dbtype; /* Cursor type. */ + + DBC_INTERNAL *internal; /* Access method private. */ + + int (*c_close) __P((DBC *)); /* Methods: public. */ + int (*c_count) __P((DBC *, db_recno_t *, u_int32_t)); + int (*c_del) __P((DBC *, u_int32_t)); + int (*c_dup) __P((DBC *, DBC **, u_int32_t)); + int (*c_get) __P((DBC *, DBT *, DBT *, u_int32_t)); + int (*c_pget) __P((DBC *, DBT *, DBT *, DBT *, u_int32_t)); + int (*c_put) __P((DBC *, DBT *, DBT *, u_int32_t)); + + /* Methods: private. */ + int (*c_am_bulk) __P((DBC *, DBT *, u_int32_t)); + int (*c_am_close) __P((DBC *, db_pgno_t, int *)); + int (*c_am_del) __P((DBC *)); + int (*c_am_destroy) __P((DBC *)); + int (*c_am_get) __P((DBC *, DBT *, DBT *, u_int32_t, db_pgno_t *)); + int (*c_am_put) __P((DBC *, DBT *, DBT *, u_int32_t, db_pgno_t *)); + int (*c_am_writelock) __P((DBC *)); + + /* Private: for secondary indices. */ + int (*c_real_get) __P((DBC *, DBT *, DBT *, u_int32_t)); + +#define DBC_ACTIVE 0x0001 /* Cursor in use. */ +#define DBC_COMPENSATE 0x0002 /* Cursor compensating, don't lock. */ +#define DBC_DIRTY_READ 0x0004 /* Cursor supports dirty reads. */ +#define DBC_OPD 0x0008 /* Cursor references off-page dups. */ +#define DBC_RECOVER 0x0010 /* Recovery cursor; don't log/lock. */ +#define DBC_RMW 0x0020 /* Acquire write flag in read op. */ +#define DBC_TRANSIENT 0x0040 /* Cursor is transient. */ +#define DBC_WRITECURSOR 0x0080 /* Cursor may be used to write (CDB). */ +#define DBC_WRITEDUP 0x0100 /* idup'ed DBC_WRITECURSOR (CDB). */ +#define DBC_WRITER 0x0200 /* Cursor immediately writing (CDB). */ +#define DBC_MULTIPLE 0x0400 /* Return Multiple data. */ +#define DBC_MULTIPLE_KEY 0x0800 /* Return Multiple keys and data. */ +#define DBC_OWN_LID 0x1000 /* Free lock id on destroy. */ + u_int32_t flags; +}; + +/* Key range statistics structure */ +struct __key_range { + double less; + double equal; + double greater; +}; + +/* Btree/Recno statistics structure. */ +struct __db_bt_stat { + u_int32_t bt_magic; /* Magic number. */ + u_int32_t bt_version; /* Version number. */ + u_int32_t bt_metaflags; /* Metadata flags. */ + u_int32_t bt_nkeys; /* Number of unique keys. */ + u_int32_t bt_ndata; /* Number of data items. */ + u_int32_t bt_pagesize; /* Page size. */ + u_int32_t bt_maxkey; /* Maxkey value. */ + u_int32_t bt_minkey; /* Minkey value. */ + u_int32_t bt_re_len; /* Fixed-length record length. */ + u_int32_t bt_re_pad; /* Fixed-length record pad. */ + u_int32_t bt_levels; /* Tree levels. */ + u_int32_t bt_int_pg; /* Internal pages. */ + u_int32_t bt_leaf_pg; /* Leaf pages. */ + u_int32_t bt_dup_pg; /* Duplicate pages. */ + u_int32_t bt_over_pg; /* Overflow pages. */ + u_int32_t bt_free; /* Pages on the free list. */ + u_int32_t bt_int_pgfree; /* Bytes free in internal pages. */ + u_int32_t bt_leaf_pgfree; /* Bytes free in leaf pages. */ + u_int32_t bt_dup_pgfree; /* Bytes free in duplicate pages. */ + u_int32_t bt_over_pgfree; /* Bytes free in overflow pages. */ +}; + +/* Hash statistics structure. */ +struct __db_h_stat { + u_int32_t hash_magic; /* Magic number. */ + u_int32_t hash_version; /* Version number. */ + u_int32_t hash_metaflags; /* Metadata flags. */ + u_int32_t hash_nkeys; /* Number of unique keys. */ + u_int32_t hash_ndata; /* Number of data items. */ + u_int32_t hash_pagesize; /* Page size. */ + u_int32_t hash_ffactor; /* Fill factor specified at create. */ + u_int32_t hash_buckets; /* Number of hash buckets. */ + u_int32_t hash_free; /* Pages on the free list. */ + u_int32_t hash_bfree; /* Bytes free on bucket pages. */ + u_int32_t hash_bigpages; /* Number of big key/data pages. */ + u_int32_t hash_big_bfree; /* Bytes free on big item pages. */ + u_int32_t hash_overflows; /* Number of overflow pages. */ + u_int32_t hash_ovfl_free; /* Bytes free on ovfl pages. */ + u_int32_t hash_dup; /* Number of dup pages. */ + u_int32_t hash_dup_free; /* Bytes free on duplicate pages. */ +}; + +/* Queue statistics structure. */ +struct __db_qam_stat { + u_int32_t qs_magic; /* Magic number. */ + u_int32_t qs_version; /* Version number. */ + u_int32_t qs_metaflags; /* Metadata flags. */ + u_int32_t qs_nkeys; /* Number of unique keys. */ + u_int32_t qs_ndata; /* Number of data items. */ + u_int32_t qs_pagesize; /* Page size. */ + u_int32_t qs_extentsize; /* Pages per extent. */ + u_int32_t qs_pages; /* Data pages. */ + u_int32_t qs_re_len; /* Fixed-length record length. */ + u_int32_t qs_re_pad; /* Fixed-length record pad. */ + u_int32_t qs_pgfree; /* Bytes free in data pages. */ + u_int32_t qs_first_recno; /* First not deleted record. */ + u_int32_t qs_cur_recno; /* Next available record number. */ +}; + +/******************************************************* + * Environment. + *******************************************************/ +#define DB_REGION_MAGIC 0x120897 /* Environment magic number. */ + +typedef enum { + DB_NOTICE_LOGFILE_CHANGED +} db_notices; + +/* Database Environment handle. */ +struct __db_env { + /******************************************************* + * Public: owned by the application. + *******************************************************/ + FILE *db_errfile; /* Error message file stream. */ + const char *db_errpfx; /* Error message prefix. */ + /* Callbacks. */ + void (*db_errcall) __P((const char *, char *)); + void (*db_feedback) __P((DB_ENV *, int, int)); + void (*db_paniccall) __P((DB_ENV *, int)); + void (*db_noticecall) __P((DB_ENV *, db_notices)); + + /* App-specified alloc functions. */ + void *(*db_malloc) __P((size_t)); + void *(*db_realloc) __P((void *, size_t)); + void (*db_free) __P((void *)); + + /* + * Currently, the verbose list is a bit field with room for 32 + * entries. There's no reason that it needs to be limited, if + * there are ever more than 32 entries, convert to a bit array. + */ +#define DB_VERB_CHKPOINT 0x0001 /* List checkpoints. */ +#define DB_VERB_DEADLOCK 0x0002 /* Deadlock detection information. */ +#define DB_VERB_RECOVERY 0x0004 /* Recovery information. */ +#define DB_VERB_REPLICATION 0x0008 /* Replication information. */ +#define DB_VERB_WAITSFOR 0x0010 /* Dump waits-for table. */ + u_int32_t verbose; /* Verbose output. */ + + void *app_private; /* Application-private handle. */ + + int (*app_dispatch) /* User-specified recovery dispatch. */ + __P((DB_ENV *, DBT *, DB_LSN *, db_recops)); + + /* Locking. */ + u_int8_t *lk_conflicts; /* Two dimensional conflict matrix. */ + u_int32_t lk_modes; /* Number of lock modes in table. */ + u_int32_t lk_max; /* Maximum number of locks. */ + u_int32_t lk_max_lockers;/* Maximum number of lockers. */ + u_int32_t lk_max_objects;/* Maximum number of locked objects. */ + u_int32_t lk_detect; /* Deadlock detect on all conflicts. */ + db_timeout_t lk_timeout; /* Lock timeout period. */ + + /* Logging. */ + u_int32_t lg_bsize; /* Buffer size. */ + u_int32_t lg_size; /* Log file size. */ + u_int32_t lg_regionmax; /* Region size. */ + + /* Memory pool. */ + u_int32_t mp_gbytes; /* Cachesize: GB. */ + u_int32_t mp_bytes; /* Cachesize: Bytes. */ + size_t mp_size; /* DEPRECATED: Cachesize: bytes. */ + int mp_ncache; /* Number of cache regions. */ + size_t mp_mmapsize; /* Maximum file size for mmap. */ + + int rep_eid; /* environment id. */ + + /* Transactions. */ + u_int32_t tx_max; /* Maximum number of transactions. */ + time_t tx_timestamp; /* Recover to specific timestamp. */ + db_timeout_t tx_timeout; /* Timeout for transactions. */ + + /******************************************************* + * Private: owned by DB. + *******************************************************/ + int panic_errval; /* Panic causing errno. */ + + /* User files, paths. */ + char *db_home; /* Database home. */ + char *db_log_dir; /* Database log file directory. */ + char *db_tmp_dir; /* Database tmp file directory. */ + + char **db_data_dir; /* Database data file directories. */ + int data_cnt; /* Database data file slots. */ + int data_next; /* Next Database data file slot. */ + + int db_mode; /* Default open permissions. */ + + void *reginfo; /* REGINFO structure reference. */ + DB_FH *lockfhp; /* fcntl(2) locking file handle. */ + + int (**recover_dtab) /* Dispatch table for recover funcs. */ + __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *)); + size_t recover_dtab_size; + /* Slots in the dispatch table. */ + + void *cl_handle; /* RPC: remote client handle. */ + long cl_id; /* RPC: remote client env id. */ + + int db_ref; /* DB reference count. */ + + long shm_key; /* shmget(2) key. */ + u_int32_t tas_spins; /* test-and-set spins. */ + + /* + * List of open DB handles for this DB_ENV, used for cursor + * adjustment. Must be protected for multi-threaded support. + * + * !!! + * As this structure is allocated in per-process memory, the + * mutex may need to be stored elsewhere on architectures unable + * to support mutexes in heap memory, e.g. HP/UX 9. + * + * !!! + * Explicit representation of structure in queue.h. + * LIST_HEAD(dblist, __db); + */ + DB_MUTEX *dblist_mutexp; /* Mutex. */ + struct { + struct __db *lh_first; + } dblist; + + /* + * XA support. + * + * !!! + * Explicit representations of structures from queue.h. + * TAILQ_ENTRY(__db_env) links; + */ + struct { + struct __db_env *tqe_next; + struct __db_env **tqe_prev; + } links; + int xa_rmid; /* XA Resource Manager ID. */ + DB_TXN *xa_txn; /* XA Current transaction. */ + + /* API-private structure. */ + void *api1_internal; /* C++, Perl API private */ + void *api2_internal; /* Java API private */ + + char *passwd; /* Cryptography support. */ + size_t passwd_len; + void *crypto_handle; /* Primary handle. */ + DB_MUTEX *mt_mutexp; /* Mersenne Twister mutex. */ + int mti; /* Mersenne Twister index. */ + u_long *mt; /* Mersenne Twister state vector. */ + + /* DB_ENV Methods. */ + int (*close) __P((DB_ENV *, u_int32_t)); + int (*dbremove) __P((DB_ENV *, + DB_TXN *, const char *, const char *, u_int32_t)); + int (*dbrename) __P((DB_ENV *, DB_TXN *, + const char *, const char *, const char *, u_int32_t)); + void (*err) __P((const DB_ENV *, int, const char *, ...)); + void (*errx) __P((const DB_ENV *, const char *, ...)); + int (*open) __P((DB_ENV *, const char *, u_int32_t, int)); + int (*remove) __P((DB_ENV *, const char *, u_int32_t)); + int (*set_data_dir) __P((DB_ENV *, const char *)); + int (*set_alloc) __P((DB_ENV *, void *(*)(size_t), + void *(*)(void *, size_t), void (*)(void *))); + int (*set_app_dispatch) __P((DB_ENV *, + int (*)(DB_ENV *, DBT *, DB_LSN *, db_recops))); + int (*set_encrypt) __P((DB_ENV *, const char *, u_int32_t)); + void (*set_errcall) __P((DB_ENV *, void (*)(const char *, char *))); + void (*set_errfile) __P((DB_ENV *, FILE *)); + void (*set_errpfx) __P((DB_ENV *, const char *)); + int (*set_feedback) __P((DB_ENV *, void (*)(DB_ENV *, int, int))); + int (*set_flags) __P((DB_ENV *, u_int32_t, int)); + void (*set_noticecall) __P((DB_ENV *, void (*)(DB_ENV *, db_notices))); + int (*set_paniccall) __P((DB_ENV *, void (*)(DB_ENV *, int))); + int (*set_rpc_server) __P((DB_ENV *, + void *, const char *, long, long, u_int32_t)); + int (*set_shm_key) __P((DB_ENV *, long)); + int (*set_tas_spins) __P((DB_ENV *, u_int32_t)); + int (*set_tmp_dir) __P((DB_ENV *, const char *)); + int (*set_verbose) __P((DB_ENV *, u_int32_t, int)); + + void *lg_handle; /* Log handle and methods. */ + int (*set_lg_bsize) __P((DB_ENV *, u_int32_t)); + int (*set_lg_dir) __P((DB_ENV *, const char *)); + int (*set_lg_max) __P((DB_ENV *, u_int32_t)); + int (*set_lg_regionmax) __P((DB_ENV *, u_int32_t)); + int (*log_archive) __P((DB_ENV *, char **[], u_int32_t)); + int (*log_cursor) __P((DB_ENV *, DB_LOGC **, u_int32_t)); + int (*log_file) __P((DB_ENV *, const DB_LSN *, char *, size_t)); + int (*log_flush) __P((DB_ENV *, const DB_LSN *)); + int (*log_put) __P((DB_ENV *, DB_LSN *, const DBT *, u_int32_t)); + int (*log_stat) __P((DB_ENV *, DB_LOG_STAT **, u_int32_t)); + + void *lk_handle; /* Lock handle and methods. */ + int (*set_lk_conflicts) __P((DB_ENV *, u_int8_t *, int)); + int (*set_lk_detect) __P((DB_ENV *, u_int32_t)); + int (*set_lk_max) __P((DB_ENV *, u_int32_t)); + int (*set_lk_max_locks) __P((DB_ENV *, u_int32_t)); + int (*set_lk_max_lockers) __P((DB_ENV *, u_int32_t)); + int (*set_lk_max_objects) __P((DB_ENV *, u_int32_t)); + int (*lock_detect) __P((DB_ENV *, u_int32_t, u_int32_t, int *)); + int (*lock_dump_region) __P((DB_ENV *, char *, FILE *)); + int (*lock_get) __P((DB_ENV *, + u_int32_t, u_int32_t, const DBT *, db_lockmode_t, DB_LOCK *)); + int (*lock_put) __P((DB_ENV *, DB_LOCK *)); + int (*lock_id) __P((DB_ENV *, u_int32_t *)); + int (*lock_id_free) __P((DB_ENV *, u_int32_t)); + int (*lock_id_set) __P((DB_ENV *, u_int32_t, u_int32_t)); + int (*lock_stat) __P((DB_ENV *, DB_LOCK_STAT **, u_int32_t)); + int (*lock_vec) __P((DB_ENV *, + u_int32_t, u_int32_t, DB_LOCKREQ *, int, DB_LOCKREQ **)); + int (*lock_downgrade) __P((DB_ENV *, + DB_LOCK *, db_lockmode_t, u_int32_t)); + + void *mp_handle; /* Mpool handle and methods. */ + int (*set_mp_mmapsize) __P((DB_ENV *, size_t)); + int (*set_cachesize) __P((DB_ENV *, u_int32_t, u_int32_t, int)); + int (*memp_dump_region) __P((DB_ENV *, char *, FILE *)); + int (*memp_fcreate) __P((DB_ENV *, DB_MPOOLFILE **, u_int32_t)); + int (*memp_nameop) __P((DB_ENV *, + u_int8_t *, const char *, const char *, const char *)); + int (*memp_register) __P((DB_ENV *, int, + int (*)(DB_ENV *, db_pgno_t, void *, DBT *), + int (*)(DB_ENV *, db_pgno_t, void *, DBT *))); + int (*memp_stat) __P((DB_ENV *, + DB_MPOOL_STAT **, DB_MPOOL_FSTAT ***, u_int32_t)); + int (*memp_sync) __P((DB_ENV *, DB_LSN *)); + int (*memp_trickle) __P((DB_ENV *, int, int *)); + + void *rep_handle; /* Replication handle and methods. */ + int (*rep_elect) __P((DB_ENV *, int, int, u_int32_t, int *)); + int (*rep_flush) __P((DB_ENV *)); + int (*rep_process_message) __P((DB_ENV *, DBT *, DBT *, int *)); + int (*rep_start) __P((DB_ENV *, DBT *, u_int32_t)); + int (*rep_stat) __P((DB_ENV *, DB_REP_STAT **, u_int32_t)); + int (*set_rep_election) __P((DB_ENV *, + u_int32_t, u_int32_t, u_int32_t, u_int32_t)); + int (*set_rep_limit) __P((DB_ENV *, u_int32_t, u_int32_t)); + int (*set_rep_request) __P((DB_ENV *, u_int32_t, u_int32_t)); + int (*set_rep_timeout) __P((DB_ENV *, u_int32_t, u_int32_t)); + int (*set_rep_transport) __P((DB_ENV *, int, + int (*) (DB_ENV *, const DBT *, const DBT *, int, u_int32_t))); + + void *tx_handle; /* Txn handle and methods. */ + int (*set_tx_max) __P((DB_ENV *, u_int32_t)); + int (*set_tx_timestamp) __P((DB_ENV *, time_t *)); + int (*txn_begin) __P((DB_ENV *, DB_TXN *, DB_TXN **, u_int32_t)); + int (*txn_checkpoint) __P((DB_ENV *, u_int32_t, u_int32_t, u_int32_t)); + int (*txn_id_set) __P((DB_ENV *, u_int32_t, u_int32_t)); + int (*txn_recover) __P((DB_ENV *, + DB_PREPLIST *, long, long *, u_int32_t)); + int (*txn_stat) __P((DB_ENV *, DB_TXN_STAT **, u_int32_t)); + int (*set_timeout) __P((DB_ENV *, db_timeout_t, u_int32_t)); + +#define DB_TEST_ELECTINIT 1 /* after __rep_elect_init */ +#define DB_TEST_ELECTSEND 2 /* after REP_ELECT msgnit */ +#define DB_TEST_ELECTVOTE1 3 /* after __rep_send_vote 1 */ +#define DB_TEST_ELECTVOTE2 4 /* after __rep_wait */ +#define DB_TEST_ELECTWAIT1 5 /* after REP_VOTE2 */ +#define DB_TEST_ELECTWAIT2 6 /* after __rep_wait 2 */ +#define DB_TEST_PREDESTROY 7 /* before destroy op */ +#define DB_TEST_PREOPEN 8 /* before __os_open */ +#define DB_TEST_POSTDESTROY 9 /* after destroy op */ +#define DB_TEST_POSTLOG 10 /* after logging all pages */ +#define DB_TEST_POSTLOGMETA 11 /* after logging meta in btree */ +#define DB_TEST_POSTOPEN 12 /* after __os_open */ +#define DB_TEST_POSTSYNC 13 /* after syncing the log */ +#define DB_TEST_SUBDB_LOCKS 14 /* subdb locking tests */ + int test_abort; /* Abort value for testing. */ + int test_copy; /* Copy value for testing. */ + +#define DB_ENV_AUTO_COMMIT 0x0000001 /* DB_AUTO_COMMIT. */ +#define DB_ENV_CDB 0x0000002 /* DB_INIT_CDB. */ +#define DB_ENV_CDB_ALLDB 0x0000004 /* CDB environment wide locking. */ +#define DB_ENV_CREATE 0x0000008 /* DB_CREATE set. */ +#define DB_ENV_DBLOCAL 0x0000010 /* DB_ENV allocated for private DB. */ +#define DB_ENV_DIRECT_DB 0x0000020 /* DB_DIRECT_DB set. */ +#define DB_ENV_DIRECT_LOG 0x0000040 /* DB_DIRECT_LOG set. */ +#define DB_ENV_FATAL 0x0000080 /* Doing fatal recovery in env. */ +#define DB_ENV_LOCKDOWN 0x0000100 /* DB_LOCKDOWN set. */ +#define DB_ENV_NOLOCKING 0x0000200 /* DB_NOLOCKING set. */ +#define DB_ENV_NOMMAP 0x0000400 /* DB_NOMMAP set. */ +#define DB_ENV_NOPANIC 0x0000800 /* Okay if panic set. */ +#define DB_ENV_OPEN_CALLED 0x0001000 /* DB_ENV->open called. */ +#define DB_ENV_OVERWRITE 0x0002000 /* DB_OVERWRITE set. */ +#define DB_ENV_PRIVATE 0x0004000 /* DB_PRIVATE set. */ +#define DB_ENV_REGION_INIT 0x0008000 /* DB_REGION_INIT set. */ +#define DB_ENV_REP_CLIENT 0x0010000 /* Replication client. */ +#define DB_ENV_REP_LOGSONLY 0x0020000 /* Log files only replication site. */ +#define DB_ENV_REP_MASTER 0x0040000 /* Replication master. */ +#define DB_ENV_RPCCLIENT 0x0080000 /* DB_CLIENT set. */ +#define DB_ENV_RPCCLIENT_GIVEN 0x0100000 /* User-supplied RPC client struct */ +#define DB_ENV_SYSTEM_MEM 0x0200000 /* DB_SYSTEM_MEM set. */ +#define DB_ENV_THREAD 0x0400000 /* DB_THREAD set. */ +#define DB_ENV_TXN_NOSYNC 0x0800000 /* DB_TXN_NOSYNC set. */ +#define DB_ENV_TXN_WRITE_NOSYNC 0x1000000 /* DB_TXN_WRITE_NOSYNC set. */ +#define DB_ENV_YIELDCPU 0x2000000 /* DB_YIELDCPU set. */ + u_int32_t flags; +}; + +#ifndef DB_DBM_HSEARCH +#define DB_DBM_HSEARCH 0 /* No historic interfaces by default. */ +#endif +#if DB_DBM_HSEARCH != 0 +/******************************************************* + * Dbm/Ndbm historic interfaces. + *******************************************************/ +typedef struct __db DBM; + +#define DBM_INSERT 0 /* Flags to dbm_store(). */ +#define DBM_REPLACE 1 + +/* + * The DB support for ndbm(3) always appends this suffix to the + * file name to avoid overwriting the user's original database. + */ +#define DBM_SUFFIX ".db" + +#if defined(_XPG4_2) +typedef struct { + char *dptr; + size_t dsize; +} datum; +#else +typedef struct { + char *dptr; + int dsize; +} datum; +#endif + +/* + * Translate NDBM calls into DB calls so that DB doesn't step on the + * application's name space. + */ +#define dbm_clearerr(a) __db_ndbm_clearerr@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_close(a) __db_ndbm_close@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_delete(a, b) __db_ndbm_delete@DB_VERSION_UNIQUE_NAME@(a, b) +#define dbm_dirfno(a) __db_ndbm_dirfno@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_error(a) __db_ndbm_error@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_fetch(a, b) __db_ndbm_fetch@DB_VERSION_UNIQUE_NAME@(a, b) +#define dbm_firstkey(a) __db_ndbm_firstkey@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_nextkey(a) __db_ndbm_nextkey@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_open(a, b, c) __db_ndbm_open@DB_VERSION_UNIQUE_NAME@(a, b, c) +#define dbm_pagfno(a) __db_ndbm_pagfno@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_rdonly(a) __db_ndbm_rdonly@DB_VERSION_UNIQUE_NAME@(a) +#define dbm_store(a, b, c, d) \ + __db_ndbm_store@DB_VERSION_UNIQUE_NAME@(a, b, c, d) + +/* + * Translate DBM calls into DB calls so that DB doesn't step on the + * application's name space. + * + * The global variables dbrdonly, dirf and pagf were not retained when 4BSD + * replaced the dbm interface with ndbm, and are not supported here. + */ +#define dbminit(a) __db_dbm_init@DB_VERSION_UNIQUE_NAME@(a) +#define dbmclose __db_dbm_close@DB_VERSION_UNIQUE_NAME@ +#if !defined(__cplusplus) +#define delete(a) __db_dbm_delete@DB_VERSION_UNIQUE_NAME@(a) +#endif +#define fetch(a) __db_dbm_fetch@DB_VERSION_UNIQUE_NAME@(a) +#define firstkey __db_dbm_firstkey@DB_VERSION_UNIQUE_NAME@ +#define nextkey(a) __db_dbm_nextkey@DB_VERSION_UNIQUE_NAME@(a) +#define store(a, b) __db_dbm_store@DB_VERSION_UNIQUE_NAME@(a, b) + +/******************************************************* + * Hsearch historic interface. + *******************************************************/ +typedef enum { + FIND, ENTER +} ACTION; + +typedef struct entry { + char *key; + char *data; +} ENTRY; + +#define hcreate(a) __db_hcreate@DB_VERSION_UNIQUE_NAME@(a) +#define hdestroy __db_hdestroy@DB_VERSION_UNIQUE_NAME@ +#define hsearch(a, b) __db_hsearch@DB_VERSION_UNIQUE_NAME@(a, b) + +#endif /* DB_DBM_HSEARCH */ + +#if defined(__cplusplus) +} +#endif +#endif /* !_DB_H_ */ |