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untested changes to close socket on slave stop for OS's that do not

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interrupt I/O after thr_alarm_kill()

test case for order by desc coredump
This commit is contained in:
sasha@mysql.sashanet.com
2001-03-12 20:17:32 -07:00
parent ad8f2810f6
commit a2b6410965
7 changed files with 118 additions and 18 deletions
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51
sql/sql_class.h
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@ -21,6 +21,8 @@
#pragma interface /* gcc class implementation */
#endif
#include <thr_alarm.h>
class Query_log_event;
class Load_log_event;
@ -256,6 +258,10 @@ public:
#ifndef __WIN__
sigset_t signals,block_signals;
#endif
#ifdef STOP_IO_WITH_FD_CLOSE
int active_fd;
pthread_mutex_t active_fd_lock;
#endif
ulonglong next_insert_id,last_insert_id,current_insert_id;
ha_rows select_limit,offset_limit,default_select_limit,cuted_fields,
max_join_size,sent_row_count;
@ -284,6 +290,51 @@ public:
THD();
~THD();
bool store_globals();
#ifdef STOP_IO_WITH_FD_CLOSE
inline void set_active_fd(int fd)
{
pthread_mutex_lock(&active_fd_lock);
active_fd = fd;
pthread_mutex_unlock(&active_fd_lock);
}
inline void clear_active_fd()
{
pthread_mutex_lock(&active_fd_lock);
active_fd = -1;
pthread_mutex_unlock(&active_fd_lock);
}
inline void close_active_fd()
{
pthread_mutex_lock(&active_fd_lock);
if(active_fd >= 0)
{
my_close(active_fd, MYF(MY_WME));
active_fd = -1;
}
pthread_mutex_unlock(&active_fd_lock);
}
#endif
inline void prepare_to_die()
{
thr_alarm_kill(real_id);
killed = 1;
#ifdef STOP_IO_WITH_FD_CLOSE
close_active_fd();
#endif
if (mysys_var)
{
pthread_mutex_lock(&mysys_var->mutex);
if (!system_thread) // Don't abort locks
mysys_var->abort=1;
if (mysys_var->current_mutex)
{
pthread_mutex_lock(mysys_var->current_mutex);
pthread_cond_broadcast(mysys_var->current_cond);
pthread_mutex_unlock(mysys_var->current_mutex);
}
pthread_mutex_unlock(&mysys_var->mutex);
}
}
inline const char* enter_cond(pthread_cond_t *cond, pthread_mutex_t* mutex,
const char* msg)
{