Merge branch 'MDL-49740-locking-bugs' of https://github.com/brendanheywood/moodle

This commit is contained in:
Dan Poltawski 2015-04-07 13:08:41 +01:00
commit e64f1fa1c7
3 changed files with 24 additions and 20 deletions

View File

@ -109,25 +109,29 @@ if ($execute = $options['execute']) {
$predbqueries = $DB->perf_get_queries();
$pretime = microtime(true);
mtrace("Scheduled task: " . $task->get_name());
// NOTE: it would be tricky to move this code to \core\task\manager class,
// because we want to do detailed error reporting.
$cronlockfactory = \core\lock\lock_config::get_lock_factory('cron');
if (!$cronlock = $cronlockfactory->get_lock('core_cron', 10)) {
mtrace('Cannot obtain cron lock');
exit(129);
}
if (!$lock = $cronlockfactory->get_lock('\\' . get_class($task), 10)) {
$cronlock->release();
mtrace('Cannot obtain task lock');
exit(130);
}
$task->set_lock($lock);
if (!$task->is_blocking()) {
$cronlock->release();
} else {
$task->set_cron_lock($cronlock);
}
try {
mtrace("Scheduled task: " . $task->get_name());
// NOTE: it would be tricky to move this code to \core\task\manager class,
// because we want to do detailed error reporting.
$cronlockfactory = \core\lock\lock_config::get_lock_factory('cron');
if (!$cronlock = $cronlockfactory->get_lock('core_cron', 10)) {
mtrace('Cannot obtain cron lock');
exit(129);
}
if (!$lock = $cronlockfactory->get_lock('\\' . get_class($task), 10)) {
mtrace('Cannot obtain task lock');
exit(130);
}
$task->set_lock($lock);
if (!$task->is_blocking()) {
$cronlock->release();
} else {
$task->set_cron_lock($cronlock);
}
get_mailer('buffer');
$task->execute();
if (isset($predbqueries)) {

View File

@ -216,7 +216,7 @@ class db_record_lock_factory implements lock_factory {
// Called from the shutdown handler. Must release all open locks.
foreach ($this->openlocks as $key => $unused) {
$lock = new lock($key, $this);
$this->release_lock($lock);
$lock->release();
}
}
}

View File

@ -236,7 +236,7 @@ class postgres_lock_factory implements lock_factory {
// Called from the shutdown handler. Must release all open locks.
foreach ($this->openlocks as $key => $unused) {
$lock = new lock($key, $this);
$this->release_lock($lock);
$lock->release();
}
}