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cleanup: thread_count

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move thread_count handling into THD:
* increment thread_count in THD constructor
* decrement thread_count in THD destructor
* never modify thread_count directly!
This commit is contained in:
Sergei Golubchik
2016-05-14 13:22:47 +02:00
parent 7425610c81
commit 562c1df7d9
14 changed files with 22 additions and 68 deletions
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2
libmysqld/lib_sql.cc
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@ -426,7 +426,6 @@ static void emb_free_embedded_thd(MYSQL *mysql)
THD *thd= (THD*)mysql->thd;
mysql_mutex_lock(&LOCK_thread_count);
thd->clear_data_list();
thread_count--;
thd->store_globals();
thd->unlink();
mysql_mutex_unlock(&LOCK_thread_count);
@ -700,7 +699,6 @@ void *create_embedded_thd(int client_flag)
bzero((char*) &thd->net, sizeof(thd->net));
mysql_mutex_lock(&LOCK_thread_count);
thread_count++;
threads.append(thd);
mysql_mutex_unlock(&LOCK_thread_count);
thd->mysys_var= 0;