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Feature #88279

closed

Implement SemaphoreLockStrategy as LOCK_CAPABILITY_NOBLOCK by using $nowait parameter of sem_acquire()

Added by Leonie Philine over 5 years ago. Updated about 5 years ago.

Status:
Rejected
Priority:
Should have
Assignee:
-
Category:
Locking / Session Handling
Target version:
-
Start date:
2019-05-06
Due date:
% Done:

0%

Estimated time:
PHP Version:
Tags:
Complexity:
Sprint Focus:

Description

Since PHP 5.6.1, sem_acquire() has a $nowait parameter to make it non-blocking. This parameter is not used in TYPO3.

-> The SemaphoreLockStrategy can be made support LOCK_CAPABILITY_NOBLOCK.

Note: php semaphores are not cluster-ready. A RedisLockStrategy is currently missing in the core and would be a great addition.

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