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<?php |
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namespace Funivan\Console\SingleState; |
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use Symfony\Component\Console\Command\Command; |
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/** |
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* Command status |
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* According to name we check if command is running |
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* |
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* @author Ivan Shcherbak <[email protected]> |
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*/ |
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class CommandState { |
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/** |
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* @var string |
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*/ |
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protected $pidFile; |
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/** |
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* Unique file name pid file name. |
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* |
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* @param Command $command |
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* @param null|string $tmpDirectory |
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*/ |
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public function __construct(Command $command, $tmpDirectory = null) { |
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$tmpDirectory = $tmpDirectory ? $tmpDirectory : sys_get_temp_dir(); |
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if (!is_dir($tmpDirectory) or !is_writable($tmpDirectory)) { |
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throw new \RuntimeException(sprintf('The directory "%s" is not writable.', $tmpDirectory), 0, null, $tmpDirectory); |
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} |
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$partName = preg_replace('/[^a-z0-9\._-]+/i', '-', $command->getName()); |
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$partName = substr($partName, 0, 40); |
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$this->pidFile = sprintf('%s/atl.%s.%s.pid', $tmpDirectory, $partName, hash('sha256', $command->getName())); |
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} |
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/** |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function isAlive() { |
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$pid = $this->getPid(); |
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if ($pid === null) { |
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return false; |
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} |
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$result = exec('ps aux | awk \'{print $2}\' | grep "^' . $pid . '$"'); |
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return !empty($result); |
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} |
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/** |
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* @param $pid |
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* @return $this |
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*/ |
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public function setPid($pid) { |
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if (!is_int($pid)) { |
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throw new \InvalidArgumentException('Invalid pid format. Expect only digits. Pid:' . $pid); |
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} |
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file_put_contents($this->pidFile, $pid); |
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return $this; |
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} |
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/** |
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* @return null|int |
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* @throws \Exception |
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*/ |
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public function getPid() { |
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if (!is_file($this->pidFile)) { |
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return null; |
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} |
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$data = @file_get_contents($this->pidFile); |
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if (empty($data)) { |
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return null; |
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} |
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$data = trim($data); |
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$pid = (int) $data; |
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if ($pid != $data) { |
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throw new \RuntimeException('File corrupted. Invalid pid format. File path:' . $this->getPidFilePath()); |
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} |
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return $pid; |
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} |
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/** |
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* Remove pid file |
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* |
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* @return bool |
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*/ |
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public function unlink() { |
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if (is_file($this->pidFile)) { |
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unlink($this->pidFile); |
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} |
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return true; |
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} |
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/** |
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* @return string |
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*/ |
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public function getPidFilePath() { |
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return $this->pidFile; |
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} |
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} |
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funivan /
console
