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Make killing of threads safer

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Docs/manual.texi:
  Changelog
sql/sql_insert.cc:
  Fix problem with INSERT DELAYED during shutdown
This commit is contained in:
unknown
2001-09-01 10:38:16 +03:00
parent 4295917682
commit 9591abbd39
10 changed files with 36 additions and 45 deletions
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9
sql/sql_repl.cc
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@ -414,12 +414,10 @@ void mysql_binlog_send(THD* thd, char* log_ident, ulong pos, ushort flags)
log.error=0;
// tell the kill thread how to wake us up
pthread_mutex_lock(&thd->mysys_var->mutex);
thd->mysys_var->current_mutex = log_lock;
thd->mysys_var->current_cond = &COND_binlog_update;
const char* proc_info = thd->proc_info;
thd->proc_info = "Slave connection: waiting for binlog update";
pthread_mutex_unlock(&thd->mysys_var->mutex);
bool read_packet = 0, fatal_error = 0;
@ -444,7 +442,8 @@ void mysql_binlog_send(THD* thd, char* log_ident, ulong pos, ushort flags)
break;
case LOG_READ_EOF:
DBUG_PRINT("wait",("waiting for data on binary log"));
pthread_cond_wait(&COND_binlog_update, log_lock);
if (!thd->killed)
pthread_cond_wait(&COND_binlog_update, log_lock);
break;
default:
@ -694,9 +693,9 @@ void kill_zombie_dump_threads(uint32 slave_server_id)
thr_alarm_kill(tmp->real_id);
tmp->killed = 1;
pthread_mutex_lock(&tmp->mysys_var->mutex);
tmp->mysys_var->abort = 1;
if(tmp->mysys_var->current_mutex)
pthread_mutex_lock(&tmp->mysys_var->mutex);
if(tmp->mysys_var->current_cond)
{
pthread_mutex_lock(tmp->mysys_var->current_mutex);
pthread_cond_broadcast(tmp->mysys_var->current_cond);