protected CacheCollector::updateCache($lock = TRUE)
Writes a value to the persistent cache immediately.
Parameters
bool $lock: (optional) Whether to acquire a lock before writing to cache. Defaults to TRUE.
File
- core/lib/Drupal/Core/Cache/CacheCollector.php, line 218
Class
- CacheCollector
- Default implementation for CacheCollectorInterface.
Namespace
Drupal\Core\Cache
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | protected function updateCache($lock = TRUE) { $data = array(); foreach ($this->keysToPersist as $offset => $persist) { if ($persist) { $data[$offset] = $this->storage[$offset]; } } if (empty($data) && empty($this->keysToRemove)) { return; } // Lock cache writes to help avoid stampedes. $cid = $this->getCid(); $lock_name = $this->normalizeLockName($cid . ':' . __CLASS__); if (!$lock || $this->lock->acquire($lock_name)) { // Set and delete operations invalidate the cache item. Try to also load // an eventually invalidated cache entry, only update an invalidated cache // entry if the creation date did not change as this could result in an // inconsistent cache. if ($cache = $this->cache->get($cid, $this->cacheInvalidated)) { if ($this->cacheInvalidated && $cache->created != $this->cacheCreated) { // We have invalidated the cache in this request and got a different // cache entry. Do not attempt to overwrite data that might have been // changed in a different request. We'll let the cache rebuild in // later requests. $this->cache->delete($cid); $this->lock->release($lock_name); return; } $data = array_merge($cache->data, $data); } // Remove keys marked for deletion. foreach ($this->keysToRemove as $delete_key) { unset($data[$delete_key]); } $this->cache->set($cid, $data, Cache::PERMANENT, $this->tags); if ($lock) { $this->lock->release($lock_name); } } $this->keysToPersist = array(); $this->keysToRemove = array();} |
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