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Direktori : /usr/include/mysql/server/private/ |
Current File : //usr/include/mysql/server/private/lock.h |
/* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ #ifndef LOCK_INCLUDED #define LOCK_INCLUDED #include "thr_lock.h" /* thr_lock_type */ #include "mdl.h" // Forward declarations struct TABLE; struct TABLE_LIST; class THD; typedef struct st_mysql_lock MYSQL_LOCK; MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count, uint flags); bool mysql_lock_tables(THD *thd, MYSQL_LOCK *sql_lock, uint flags); int mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock, bool free_lock); int mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock); int mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock); int mysql_unlock_some_tables(THD *thd, TABLE **table,uint count, uint flag); int mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table); bool mysql_lock_abort_for_thread(THD *thd, TABLE *table); MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b); /* Lock based on name */ bool lock_schema_name(THD *thd, const char *db); /* Lock based on stored routine name */ bool lock_object_name(THD *thd, MDL_key::enum_mdl_namespace mdl_type, const char *db, const char *name); /* flags for get_lock_data */ #define GET_LOCK_UNLOCK 0 #define GET_LOCK_STORE_LOCKS 1 #define GET_LOCK_ACTION_MASK 1 #define GET_LOCK_ON_THD (1 << 1) #define GET_LOCK_SKIP_SEQUENCES (1 << 2) MYSQL_LOCK *get_lock_data(THD *thd, TABLE **table_ptr, uint count, uint flags); void reset_lock_data(MYSQL_LOCK *sql_lock, bool unlock); #endif /* LOCK_INCLUDED */