database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-01-06 05:22:24 +03:00
Code Activity

Merge mysql.com:/home/mysql_src/mysql-5.0

Browse Source 
into  mysql.com:/home/mysql_src/mysql-5.1-merge-of-5.0 (not all files are good,
I'll fix; I'll ask some devs to check their part)
This commit is contained in:
guilhem@mysql.com
2005-11-18 16:38:01 +01:00
parent 50afa94dd5 43bbd352e3
commit 2f95fc2701
101 changed files with 4429 additions and 791 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
sql/log.cc
View File

@@ -77,7 +77,7 @@ handlerton binlog_hton = {
NULL, /* Flush logs */
NULL, /* Show status */
NULL, /* Replication Report Sent Binlog */
HTON_NOT_USER_SELECTABLE
HTON_NOT_USER_SELECTABLE | HTON_HIDDEN
};
@@ -368,8 +368,7 @@ static int find_uniq_filename(char *name)
MYSQL_LOG::MYSQL_LOG()
:bytes_written(0), last_time(0), query_start(0), name(0),
prepared_xids(0), log_type(LOG_CLOSED), file_id(1), open_count(1),
readers_count(0), reset_pending(FALSE), write_error(FALSE), inited(FALSE),
need_start_event(TRUE),
write_error(FALSE), inited(FALSE), need_start_event(TRUE),
description_event_for_exec(0), description_event_for_queue(0)
{
/*
@@ -396,9 +395,7 @@ void MYSQL_LOG::cleanup()
delete description_event_for_exec;
(void) pthread_mutex_destroy(&LOCK_log);
(void) pthread_mutex_destroy(&LOCK_index);
(void) pthread_mutex_destroy(&LOCK_readers);
(void) pthread_cond_destroy(&update_cond);
(void) pthread_cond_destroy(&reset_cond);
}
DBUG_VOID_RETURN;
}
@@ -443,9 +440,7 @@ void MYSQL_LOG::init_pthread_objects()
inited= 1;
(void) pthread_mutex_init(&LOCK_log,MY_MUTEX_INIT_SLOW);
(void) pthread_mutex_init(&LOCK_index, MY_MUTEX_INIT_SLOW);
(void) pthread_mutex_init(&LOCK_readers, MY_MUTEX_INIT_SLOW);
(void) pthread_cond_init(&update_cond, 0);
(void) pthread_cond_init(&reset_cond, 0);
}
const char *MYSQL_LOG::generate_name(const char *log_name,
@@ -949,12 +944,6 @@ bool MYSQL_LOG::reset_logs(THD* thd)
pthread_mutex_lock(&LOCK_log);
pthread_mutex_lock(&LOCK_index);
/*
we need one more lock to block attempts to open a log while
we are waiting untill all log files will be closed
*/
pthread_mutex_lock(&LOCK_readers);
/*
The following mutex is needed to ensure that no threads call
'delete thd' as we would then risk missing a 'rollback' from this
@@ -977,19 +966,6 @@ bool MYSQL_LOG::reset_logs(THD* thd)
goto err;
}
reset_pending= TRUE;
/*
send update signal just in case so that all reader threads waiting
for log update will leave wait condition
*/
signal_update();
/*
if there are active readers wait until all of them will
release opened files
*/
while (readers_count)
pthread_cond_wait(&reset_cond, &LOCK_log);
for (;;)
{
my_delete(linfo.log_file_name, MYF(MY_WME));
@@ -1008,10 +984,7 @@ bool MYSQL_LOG::reset_logs(THD* thd)
my_free((gptr) save_name, MYF(0));
err:
reset_pending= FALSE;
(void) pthread_mutex_unlock(&LOCK_thread_count);
pthread_mutex_unlock(&LOCK_readers);
pthread_mutex_unlock(&LOCK_index);
pthread_mutex_unlock(&LOCK_log);
DBUG_RETURN(error);
@@ -2085,12 +2058,6 @@ void MYSQL_LOG::wait_for_update(THD* thd, bool is_slave)
{
const char *old_msg;
DBUG_ENTER("wait_for_update");
if (reset_pending)
{
pthread_mutex_unlock(&LOCK_log);
DBUG_VOID_RETURN;
}
old_msg= thd->enter_cond(&update_cond, &LOCK_log,
is_slave ?
@@ -2342,33 +2309,6 @@ void MYSQL_LOG::signal_update()
DBUG_VOID_RETURN;
}
void MYSQL_LOG::readers_addref()
{
/*
There is no necessity for reference counting on *nix, since it allows to
delete opened files, however it is more clean way to wait
untill all files will be closed on *nix as well.
*/
DBUG_ENTER("MYSQL_LOG::reader_addref");
pthread_mutex_lock(&LOCK_log);
pthread_mutex_lock(&LOCK_readers);
readers_count++;
pthread_mutex_unlock(&LOCK_readers);
pthread_mutex_unlock(&LOCK_log);
DBUG_VOID_RETURN;
}
void MYSQL_LOG::readers_release()
{
DBUG_ENTER("MYSQL_LOG::reader_release");
pthread_mutex_lock(&LOCK_log);
readers_count--;
if (!readers_count)
pthread_cond_broadcast(&reset_cond);
pthread_mutex_unlock(&LOCK_log);
DBUG_VOID_RETURN;
}
#ifdef __NT__
void print_buffer_to_nt_eventlog(enum loglevel level, char *buff,
uint length, int buffLen)