mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-05-14 19:07:15 +02:00
Code Issues Projects Releases Packages Wiki Activity

Merge MySQL 5.1.46 into MariaDB.

Browse source 
Still two test failures to be solved: main.myisam and main.subselect.
This commit is contained in:
unknown 2010-04-28 14:52:24 +02:00
commit b1e00b6be8
1343 changed files with 951100 additions and 3865 deletions
Download patch file Download diff file Expand all files Collapse all files

74
sql/item_func.cc
View file

@ -3360,80 +3360,6 @@ longlong Item_master_pos_wait::val_int()
return event_count;
}
#ifdef EXTRA_DEBUG
void debug_sync_point(const char* lock_name, uint lock_timeout)
{
THD* thd=current_thd;
User_level_lock* ull;
struct timespec abstime;
size_t lock_name_len;
lock_name_len= strlen(lock_name);
pthread_mutex_lock(&LOCK_user_locks);
if (thd->ull)
{
item_user_lock_release(thd->ull);
thd->ull=0;
}
/*
If the lock has not been aquired by some client, we do not want to
create an entry for it, since we immediately release the lock. In
this case, we will not be waiting, but rather, just waste CPU and
memory on the whole deal
*/
if (!(ull= ((User_level_lock*) hash_search(&hash_user_locks,
(uchar*) lock_name,
lock_name_len))))
{
pthread_mutex_unlock(&LOCK_user_locks);
return;
}
ull->count++;
/*
Structure is now initialized. Try to get the lock.
Set up control struct to allow others to abort locks
*/
thd_proc_info(thd, "User lock");
thd->mysys_var->current_mutex= &LOCK_user_locks;
thd->mysys_var->current_cond= &ull->cond;
set_timespec(abstime,lock_timeout);
while (ull->locked && !thd->killed)
{
int error= pthread_cond_timedwait(&ull->cond, &LOCK_user_locks, &abstime);
if (error == ETIMEDOUT || error == ETIME)
break;
}
if (ull->locked)
{
if (!--ull->count)
delete ull; // Should never happen
}
else
{
ull->locked=1;
ull->set_thread(thd);
thd->ull=ull;
}
pthread_mutex_unlock(&LOCK_user_locks);
pthread_mutex_lock(&thd->mysys_var->mutex);
thd_proc_info(thd, 0);
thd->mysys_var->current_mutex= 0;
thd->mysys_var->current_cond= 0;
pthread_mutex_unlock(&thd->mysys_var->mutex);
pthread_mutex_lock(&LOCK_user_locks);
if (thd->ull)
{
item_user_lock_release(thd->ull);
thd->ull=0;
}
pthread_mutex_unlock(&LOCK_user_locks);
}
#endif
/**
Get a user level lock. If the thread has an old lock this is first released.