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MDL-76865 core: Check lock state before attempting to acquire a lock

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This commit is contained in:
Dale Davies 2023-08-10 13:42:46 +01:00
parent 478abd671f
commit af91ae626a
1 changed files with 2 additions and 1 deletions
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3
cache/classes/loaders.php vendored
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@ -621,7 +621,8 @@ class cache implements cache_loader {
// store; parent method will have set it to all stores if needed.
if ($setaftervalidation) {
$lock = null;
if (!empty($this->requirelockingbeforewrite)) {
// Only try to acquire a lock for this cache if we do not already have one.
if (!empty($this->requirelockingbeforewrite) && !$this->check_lock_state($key)) {
$lock = $this->acquire_lock($key);
}
if ($requiredversion === self::VERSION_NONE) {