mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
706157f025
into mysql.com:/home/my/mysql-5.0 mysql-test/r/view.result: Auto merged mysql-test/t/view.test: Auto merged server-tools/instance-manager/instance.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/handler.cc: Auto merged sql/item.cc: Auto merged sql/slave.cc: Auto merged sql/sp_head.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_manager.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/table.cc: Auto merged sql/unireg.cc: Auto merged
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
|
|
/*
|
|
* sql_manager.cc
|
|
* This thread manages various maintenance tasks.
|
|
*
|
|
* o Flushing the tables every flush_time seconds.
|
|
* o Berkeley DB: removing unneeded log files.
|
|
*/
|
|
|
|
#include "mysql_priv.h"
|
|
#include "sql_manager.h"
|
|
|
|
ulong volatile manager_status;
|
|
bool volatile manager_thread_in_use;
|
|
|
|
pthread_t manager_thread;
|
|
pthread_mutex_t LOCK_manager;
|
|
pthread_cond_t COND_manager;
|
|
|
|
pthread_handler_t handle_manager(void *arg __attribute__((unused)))
|
|
{
|
|
int error = 0;
|
|
ulong status;
|
|
struct timespec abstime;
|
|
bool reset_flush_time = TRUE;
|
|
my_thread_init();
|
|
DBUG_ENTER("handle_manager");
|
|
|
|
pthread_detach_this_thread();
|
|
manager_thread = pthread_self();
|
|
manager_status = 0;
|
|
manager_thread_in_use = 1;
|
|
|
|
for (;;)
|
|
{
|
|
pthread_mutex_lock(&LOCK_manager);
|
|
/* XXX: This will need to be made more general to handle different
|
|
* polling needs. */
|
|
if (flush_time)
|
|
{
|
|
if (reset_flush_time)
|
|
{
|
|
set_timespec(abstime, flush_time);
|
|
reset_flush_time = FALSE;
|
|
}
|
|
while (!manager_status && (!error || error == EINTR) && !abort_loop)
|
|
error= pthread_cond_timedwait(&COND_manager, &LOCK_manager, &abstime);
|
|
}
|
|
else
|
|
{
|
|
while (!manager_status && (!error || error == EINTR) && !abort_loop)
|
|
error= pthread_cond_wait(&COND_manager, &LOCK_manager);
|
|
}
|
|
status = manager_status;
|
|
manager_status = 0;
|
|
pthread_mutex_unlock(&LOCK_manager);
|
|
|
|
if (abort_loop)
|
|
break;
|
|
|
|
if (error == ETIMEDOUT || error == ETIME)
|
|
{
|
|
flush_tables();
|
|
error = 0;
|
|
reset_flush_time = TRUE;
|
|
}
|
|
|
|
#ifdef HAVE_BERKELEY_DB
|
|
if (status & MANAGER_BERKELEY_LOG_CLEANUP)
|
|
{
|
|
berkeley_cleanup_log_files();
|
|
status &= ~MANAGER_BERKELEY_LOG_CLEANUP;
|
|
}
|
|
#endif
|
|
|
|
if (status)
|
|
DBUG_PRINT("error", ("manager did not handle something: %lx", status));
|
|
}
|
|
manager_thread_in_use = 0;
|
|
my_thread_end();
|
|
DBUG_RETURN(NULL);
|
|
}
|