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WL#2360 Performance schema

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Part III: mysys instrumentation
This commit is contained in:
Marc Alff
2009-12-09 20:19:51 -07:00
parent 6fd3866c6c
commit c082955f06
64 changed files with 1383 additions and 919 deletions
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16
sql/sql_class.h
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@ -1874,21 +1874,21 @@ public:
enter_cond(); this mutex is then released by exit_cond().
Usage must be: lock mutex; enter_cond(); your code; exit_cond().
*/
inline const char* enter_cond(pthread_cond_t *cond, pthread_mutex_t* mutex,
const char* msg)
inline const char* enter_cond(mysql_cond_t *cond, mysql_mutex_t* mutex,
const char* msg)
{
const char* old_msg = proc_info;
safe_mutex_assert_owner(mutex);
mysql_mutex_assert_owner(mutex);
mysys_var->current_mutex = mutex;
mysys_var->current_cond = cond;
proc_info = msg;
return old_msg;
}
inline const char* enter_cond(mysql_cond_t *cond, mysql_mutex_t *mutex,
inline const char* enter_cond(pthread_cond_t *cond, pthread_mutex_t *mutex,
const char *msg)
{
/* TO BE REMOVED: temporary helper, to help with merges */
return enter_cond(&cond->m_cond, &mutex->m_mutex, msg);
return enter_cond((mysql_cond_t*) cond, (mysql_mutex_t*) mutex, msg);
}
inline void exit_cond(const char* old_msg)
{
@ -1898,12 +1898,12 @@ public:
locked (if that would not be the case, you'll get a deadlock if someone
does a THD::awake() on you).
*/
pthread_mutex_unlock(mysys_var->current_mutex);
pthread_mutex_lock(&mysys_var->mutex);
mysql_mutex_unlock(mysys_var->current_mutex);
mysql_mutex_lock(&mysys_var->mutex);
mysys_var->current_mutex = 0;
mysys_var->current_cond = 0;
proc_info = old_msg;
pthread_mutex_unlock(&mysys_var->mutex);
mysql_mutex_unlock(&mysys_var->mutex);
return;
}
inline time_t query_start() { query_start_used=1; return start_time; }