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debug_sync.h
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57 lines (40 loc) · 2.03 KB
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#ifndef DEBUG_SYNC_INCLUDED
#define DEBUG_SYNC_INCLUDED
/* Copyright (c) 2009, 2011, 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,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
/**
@file
Declarations for the Debug Sync Facility. See debug_sync.cc for details.
*/
#include <my_global.h>
class THD;
#if defined(ENABLED_DEBUG_SYNC)
/* Macro to be put in the code at synchronization points. */
#define DEBUG_SYNC(_thd_, _sync_point_name_) \
do { if (unlikely(opt_debug_sync_timeout)) \
debug_sync(_thd_, STRING_WITH_LEN(_sync_point_name_)); \
} while (0)
/* Command line option --debug-sync-timeout. See mysqld.cc. */
extern MYSQL_PLUGIN_IMPORT uint opt_debug_sync_timeout;
/* Default WAIT_FOR timeout if command line option is given without argument. */
#define DEBUG_SYNC_DEFAULT_WAIT_TIMEOUT 300
/* Debug Sync prototypes. See debug_sync.cc. */
extern int debug_sync_init(void);
extern void debug_sync_end(void);
extern void debug_sync_init_thread(THD *thd);
extern void debug_sync_end_thread(THD *thd);
extern void debug_sync(THD *thd, const char *sync_point_name, size_t name_len);
extern bool debug_sync_set_action(THD *thd, const char *action_str, size_t len);
#else /* defined(ENABLED_DEBUG_SYNC) */
#define DEBUG_SYNC(_thd_, _sync_point_name_) /* disabled DEBUG_SYNC */
#endif /* defined(ENABLED_DEBUG_SYNC) */
#endif /* DEBUG_SYNC_INCLUDED */