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<?php |
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class Daemon extends Module { |
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private $tasksDirResource; |
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private $serializer; |
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private $workDir; |
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public $needCheck = false; |
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function check() { |
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$workDir = $this->workDir(); |
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$lock = fopen($workDir . '/daemon.lock', 'w+'); |
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if (flock($lock, LOCK_EX | LOCK_NB)) { |
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echo 'started'; |
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flock($lock, LOCK_UN); |
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fclose($lock); |
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$fp = fsockopen($_SERVER['SERVER_NAME'], |
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80, |
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$errno, $errstr, 30); |
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$out = "GET /daemon/start HTTP/1.1\r\n"; |
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$out .= "Host: " . $_SERVER['SERVER_NAME'] . "\r\n"; |
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$out .= "Connection: Close\r\n\r\n"; |
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fwrite($fp, $out); |
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fclose($fp); |
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} |
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} |
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function start() { |
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$workDir = $this->workDir(); |
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$lock = fopen($workDir . '/daemon.lock', 'w+'); |
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if (flock($lock, LOCK_EX | LOCK_NB)) { |
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while ($taskFile = $this->getNextTask()) { |
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$task = $this->unserialize(file_get_contents($taskFile)); |
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$task(); |
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unlink($taskFile); |
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} |
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} |
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} |
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function getNextTask() { |
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$workDir = $this->workDir(); |
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if (!is_resource($this->tasksDirResource)) { |
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$this->tasksDirResource = opendir($workDir . '/tasks/'); |
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} |
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if ($this->tasksDirResource) { |
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while (false !== ($entry = readdir($this->tasksDirResource))) { |
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if ($entry != "." && $entry != "..") { |
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return $workDir . '/tasks/' . $entry; |
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} |
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} |
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} |
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return false; |
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} |
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function task($callback) { |
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$workDir = $this->workDir(); |
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$taskFile = $workDir . '/tasks/' . microtime(true) . '.task'; |
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file_put_contents($taskFile, $this->serialize($callback)); |
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$this->needCheck = true; |
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return $taskFile; |
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} |
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function workDir() { |
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if ($this->workDir) { |
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return $this->workDir; |
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} |
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$path = App::$primary->path . '/daemon'; |
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Tools::createDir(App::$primary->path . '/daemon/tasks'); |
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return $path; |
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} |
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function unserialize($item) { |
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return $this->serializer()->unserialize($item); |
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} |
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function serialize($item) { |
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return $this->serializer()->serialize($item); |
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} |
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function serializer() { |
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if ($this->serializer) { |
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return $this->serializer; |
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} |
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\ComposerCmd::requirePackage('jeremeamia/superclosure'); |
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return $this->serializer = new \SuperClosure\Serializer(); |
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} |
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function __destruct() { |
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if ($this->needCheck) { |
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$this->check(); |
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} |
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} |
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} |
Adding explicit visibility (
private
,protected
, orpublic
) is generally recommend to communicate to other developers how, and from where this method is intended to be used.