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authorunknown <pappa@c-8b0ae253.1238-1-64736c10.cust.bredbandsbolaget.se>2005-08-05 18:01:34 -0400
committerunknown <pappa@c-8b0ae253.1238-1-64736c10.cust.bredbandsbolaget.se>2005-08-05 18:01:34 -0400
commitaca6f88ebb4fb6118b8f12a696111fce167762d3 (patch)
treef2bca76ddf241e417c5d8e8f0ab325105e97cbae /sql/sp_cache.h
parent9216f5f25926197a4b40ac4fd4aeb9ad48a2a247 (diff)
parente13fa8ebbb095970b9a5a206001eeb06273567de (diff)
downloadmariadb-git-aca6f88ebb4fb6118b8f12a696111fce167762d3.tar.gz
Merge mronstrom@bk-internal.mysql.com:/home/bk/mysql-5.0
into c-8b0ae253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/mysql-5.1 BitKeeper/etc/config: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/information_schema_db.result: Auto merged mysql-test/t/disabled.def: Auto merged mysys/default.c: Auto merged scripts/Makefile.am: Auto merged scripts/mysql_create_system_tables.sh: Auto merged scripts/mysql_fix_privilege_tables.sql: Auto merged sql/field.cc: Auto merged sql/field.h: Auto merged sql/ha_federated.cc: Auto merged sql/ha_innodb.cc: Auto merged sql/ha_innodb.h: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/ha_ndbcluster.h: Auto merged sql/handler.cc: Auto merged sql/item.cc: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/set_var.cc: Auto merged sql/set_var.h: Auto merged sql/slave.cc: Auto merged sql/slave.h: Auto merged sql/sp.cc: Auto merged sql/sql_acl.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_cache.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/table.cc: Auto merged sql/table.h: Auto merged sql/tztime.cc: Auto merged sql/unireg.cc: Auto merged storage/innobase/buf/buf0buf.c: Auto merged storage/innobase/include/os0file.h: Auto merged storage/innobase/include/read0read.h: Auto merged storage/innobase/include/read0types.h: Auto merged storage/innobase/include/trx0trx.h: Auto merged storage/innobase/os/os0file.c: Auto merged storage/innobase/read/read0read.c: Auto merged storage/innobase/row/row0sel.c: Auto merged storage/innobase/srv/srv0srv.c: Auto merged storage/innobase/srv/srv0start.c: Auto merged storage/innobase/trx/trx0sys.c: Auto merged storage/innobase/trx/trx0trx.c: Auto merged storage/myisam/mi_create.c: Auto merged storage/myisam/sort.c: Auto merged storage/ndb/include/mgmapi/mgmapi.h: Auto merged storage/ndb/include/mgmapi/mgmapi_config_parameters.h: Auto merged storage/ndb/src/common/portlib/NdbMutex.c: Auto merged storage/ndb/src/common/portlib/NdbThread.c: Auto merged storage/ndb/src/kernel/blocks/dbacc/DbaccMain.cpp: Auto merged storage/ndb/src/kernel/blocks/dbtup/DbtupGen.cpp: Auto merged storage/ndb/src/mgmapi/mgmapi.cpp: Auto merged storage/ndb/src/mgmsrv/ConfigInfo.cpp: Auto merged storage/ndb/src/mgmsrv/ConfigInfo.hpp: Auto merged strings/ctype-big5.c: Auto merged strings/ctype-ucs2.c: Auto merged support-files/mysql.spec.sh: Auto merged configure.in: Manual merge 5.0 -> 5.1 mysql-test/t/alter_table.test: Manual merge 5.0 -> 5.1 sql/share/errmsg.txt: Manual merge 5.0 -> 5.1 storage/ndb/tools/Makefile.am: Manual merge 5.0 -> 5.1
Diffstat (limited to 'sql/sp_cache.h')
-rw-r--r--sql/sp_cache.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/sql/sp_cache.h b/sql/sp_cache.h
index e9efe5b2a8c..14b2db97f5f 100644
--- a/sql/sp_cache.h
+++ b/sql/sp_cache.h
@@ -22,6 +22,13 @@
#pragma interface /* gcc class implementation */
#endif
+/*
+ Stored procedures/functions cache. This is used as follows:
+ * Each thread has its own cache.
+ * Each sp_head object is put into its thread cache before it is used, and
+ then remains in the cache until deleted.
+*/
+
class sp_head;
class sp_cache;
@@ -31,16 +38,20 @@ void sp_cache_init();
/* Clear the cache *cp and set *cp to NULL */
void sp_cache_clear(sp_cache **cp);
-/* Insert an SP to cache. If 'cp' points to NULL, it's set to a new cache */
+/* Insert an SP into cache. If 'cp' points to NULL, it's set to a new cache */
void sp_cache_insert(sp_cache **cp, sp_head *sp);
/* Lookup an SP in cache */
sp_head *sp_cache_lookup(sp_cache **cp, sp_name *name);
-/* Remove an SP from cache. Returns true if something was removed */
+/*
+ Remove an SP from cache, and also bump the Cversion number so all other
+ caches are invalidated.
+ Returns true if something was removed.
+*/
bool sp_cache_remove(sp_cache **cp, sp_name *name);
-/* Invalidate a cache */
+/* Invalidate all existing SP caches by bumping Cversion number. */
void sp_cache_invalidate();