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<?php |
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namespace Archivr\LockAdapter; |
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abstract class AbstractLockAdapter implements LockAdapterInterface |
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{ |
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/** |
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* @var int[] |
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*/ |
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protected $lockDepthMap = []; |
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public function isLocked(string $name): bool |
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{ |
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return $this->hasLock($name) || $this->doesLockExist($name); |
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} |
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public function hasLock(string $name): bool |
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{ |
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return isset($this->lockDepthMap[$name]); |
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} |
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public function acquireLock(string $name): bool |
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{ |
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if (!isset($this->lockDepthMap[$name])) |
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{ |
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$success = $this->doAcquireLock($name); |
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if (!$success) |
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{ |
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return false; |
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} |
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$this->lockDepthMap[$name] = 0; |
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} |
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$this->lockDepthMap[$name]++; |
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return true; |
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} |
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public function releaseLock(string $name): bool |
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{ |
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if (isset($this->lockDepthMap[$name])) |
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{ |
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if (--$this->lockDepthMap[$name] === 0) |
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{ |
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$this->doReleaseLock($name); |
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unset($this->lockDepthMap[$name]); |
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} |
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} |
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return true; |
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} |
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public function __destruct() |
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{ |
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$this->releaseAcquiredLocks(); |
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} |
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protected function releaseAcquiredLocks() |
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{ |
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foreach (array_keys($this->lockDepthMap) as $lockName) |
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{ |
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$this->doReleaseLock($lockName); |
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} |
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$this->lockDepthMap = []; |
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} |
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protected function getLockLabel(): string |
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{ |
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return json_encode([ |
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'acquired' => time(), |
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'user' => get_current_user() |
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]); |
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} |
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abstract protected function doesLockExist(string $name): bool; |
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abstract protected function doAcquireLock(string $name): bool; |
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abstract protected function doReleaseLock(string $name); |
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} |
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