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perfschema mdl related instrumentation changes

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This commit is contained in:
Sergei Golubchik
2020-02-14 16:28:05 +01:00
parent 22b6d8487a
commit 05779bc6f1
25 changed files with 182 additions and 86 deletions
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25
sql/debug_sync.cc
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@ -121,6 +121,25 @@ static void init_debug_sync_psi_keys(void)
#endif /* HAVE_PSI_INTERFACE */
/**
Set the THD::proc_info without instrumentation.
This method is private to DEBUG_SYNC,
and on purpose avoid any use of:
- the SHOW PROFILE instrumentation
- the PERFORMANCE_SCHEMA instrumentation
so that using DEBUG_SYNC() in the server code
does not cause the instrumentations to record
spurious data.
*/
static const char*
debug_sync_thd_proc_info(THD *thd, const char* info)
{
const char* old_proc_info= thd->proc_info;
thd->proc_info= info;
return old_proc_info;
}
/**
Initialize the debug sync facility at server start.
@ -1365,7 +1384,7 @@ static void debug_sync_execute(THD *thd, st_debug_sync_action *action)
strxnmov(ds_control->ds_proc_info, sizeof(ds_control->ds_proc_info)-1,
"debug sync point: ", action->sync_point.c_ptr(), NullS);
old_proc_info= thd->proc_info;
thd_proc_info(thd, ds_control->ds_proc_info);
debug_sync_thd_proc_info(thd, ds_control->ds_proc_info);
}
/*
@ -1483,11 +1502,11 @@ static void debug_sync_execute(THD *thd, st_debug_sync_action *action)
mysql_mutex_lock(&thd->mysys_var->mutex);
thd->mysys_var->current_mutex= old_mutex;
thd->mysys_var->current_cond= old_cond;
thd_proc_info(thd, old_proc_info);
debug_sync_thd_proc_info(thd, old_proc_info);
mysql_mutex_unlock(&thd->mysys_var->mutex);
}
else
thd_proc_info(thd, old_proc_info);
debug_sync_thd_proc_info(thd, old_proc_info);
}
else
{