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Fix for a valgrind warning due to use of a uninitialized

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variable. The problem was that THD::connect_utime could be
used without being initialized when the main thread is used
to handle connections (--thread-handling=no-threads).
This commit is contained in:
Davi Arnaut
2009-06-08 19:05:24 -03:00
parent 8209a09ef6
commit a561a95e6c
4 changed files with 23 additions and 9 deletions
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20
sql/sql_connect.cc
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@ -1074,8 +1074,8 @@ static void prepare_new_connection_state(THD* thd)
pthread_handler_t handle_one_connection(void *arg)
{
THD *thd= (THD*) arg;
ulong launch_time= (ulong) ((thd->thr_create_utime= my_micro_time()) -
thd->connect_utime);
thd->thr_create_utime= my_micro_time();
if (thread_scheduler.init_new_connection_thread())
{
@ -1084,8 +1084,20 @@ pthread_handler_t handle_one_connection(void *arg)
thread_scheduler.end_thread(thd,0);
return 0;
}
if (launch_time >= slow_launch_time*1000000L)
statistic_increment(slow_launch_threads,&LOCK_status);
/*
If a thread was created to handle this connection:
increment slow_launch_threads counter if it took more than
slow_launch_time seconds to create the thread.
*/
if (thd->prior_thr_create_utime)
{
ulong launch_time= (ulong) (thd->thr_create_utime -
thd->prior_thr_create_utime);
if (launch_time >= slow_launch_time*1000000L)
statistic_increment(slow_launch_threads, &LOCK_status);
thd->prior_thr_create_utime= 0;
}
/*
handle_one_connection() is normally the only way a thread would