function execute() { if (!Database::beginTransaction()) { trigger_error('Cannot initiate transaction.', E_USER_WARNING); return false; // Must halt explicitly because of data integrity. } $hasFailure = false; $failHandler = function () use(&$hasFailure) { $hasFailure = true; }; foreach ($this->callbacks as $callback) { $callback()->fail($failHandler); if ($hasFailure) { break; } } if ($hasFailure) { Database::rollback(); } else { Database::commit(); } return !$hasFailure; }
} unset($res, $capLimit); Database::lockTables(array(FRAMEWORK_COLLECTION_PROCESS . ' LOW_PRIORITY WRITE', FRAMEWORK_COLLECTION_PROCESS . ' as `active` LOW_PRIORITY WRITE', FRAMEWORK_COLLECTION_PROCESS . ' as `inactive` LOW_PRIORITY WRITE')); $process = Database::fetchRow('SELECT `inactive`.* FROM `' . FRAMEWORK_COLLECTION_PROCESS . '` as `inactive` LEFT JOIN ( SELECT `type`, SUM(`capacity`) as `occupation` FROM `' . FRAMEWORK_COLLECTION_PROCESS . '` WHERE `pid` IS NOT NULL GROUP BY `type` ) as `active` ON `active`.`type` = `inactive`.`type` WHERE `timestamp` <= CURRENT_TIMESTAMP AND `start_time` <= CURRENT_TIMESTAMP AND `inactive`.`pid` IS NULL ORDER BY `occupation`, `weight` DESC, `id` LIMIT 1;'); // No waiting jobs in queue. if (!$process) { Database::unlockTables(true); Database::rollback(); Log::debug('No more jobs to do, suicide.'); die; } $processContents = (array) ContentDecoder::json($process[Node::FIELD_VIRTUAL], 1); unset($process[Node::FIELD_VIRTUAL]); $process += $processContents; unset($processContents); $res = Database::query('UPDATE `' . FRAMEWORK_COLLECTION_PROCESS . '` SET `pid` = ? WHERE `id` = ? AND `pid` IS NULL LIMIT 1', [getmypid(), $process['id']]); // Commit transaction Database::unlockTables(true); Database::commit(); if ($res->rowCount() < 1) { Log::warning('Unable to update process pid, worker exits.'); die;
public static function handleException($e) { if (error_reporting() == 0) { return; } while (ob_get_level() > 0) { ob_end_clean(); } $eS = $e->getMessage(); $eN = $e->getCode(); $eC = $e->getTrace(); // Put current context into stack trace array_unshift($eC, array('file' => $e->getFile(), 'line' => $e->getLine())); if ($e instanceof ErrorException) { switch ($e->getSeverity()) { case E_ERROR: case E_PARSE: case E_CORE_ERROR: case E_USER_ERROR: default: $logType = LogLevel::CRITICAL; break; case E_WARNING: case E_CORE_WARNING: case E_USER_WARNING: $logType = LogLevel::WARNING; break; case E_DEPRECATED: case E_NOTICE: case E_USER_DEPRECATED: case E_USER_NOTICE: $logType = LogLevel::NOTICE; break; case E_STRICT: $logType = LogLevel::INFO; break; } $exceptionType = 'error'; } else { $exceptionType = get_class($e); if (strpos($exceptionType, '\\') !== false) { $exceptionType = substr(strrchr($exceptionType, '\\'), 1); } $logType = LogLevel::ERROR; } $logString = sprintf('[Gateway] Uncaught %s#%d with message: "%s".', $exceptionType, $eN, $eS); unset($exceptionType); // Current request context $resolver = Resolver::getActiveInstance(); if ($resolver) { if ($resolver->request()) { $client = $resolver->request()->client(); } $response = $resolver->response(); } unset($resolver); // Prevent recursive errors on logging when database fails to connect. if (Database::isConnected()) { // Release table locks of current session. @Database::unlockTables(false); if (Database::inTransaction()) { @Database::rollback(); } } $logContext = array_filter(array('errorContext' => $eC, 'client' => @$client)); // Log the error try { @Log::log($logType, $logString, $logContext); } catch (\Exception $e) { } unset($logContext); // Send the error to output $output = array('error' => $eS, 'code' => $eN); if (System::environment(false) != System::ENV_PRODUCTION) { $output['trace'] = $eC; } // Display error message if (isset($response) && @$client['type'] != 'cli') { // Do i18n when repsonse context is available if ($e instanceof GeneralException) { $errorMessage = $response->__($eS, $logType); if ($errorMessage) { $output['error'] = $errorMessage; } } if ($e instanceof ErrorException) { $statusCode = 500; } else { $statusCode = 400; } if ($e instanceof ValidationException) { $output['errors'] = $e->getErrors(); } $response->clearHeaders(); $response->header('Content-Type', 'application/json; charset=utf-8'); $response->send($output, $statusCode); } else { header('Content-Type: text/plain', true, 500); echo "{$logString}\n"; // Debug stack trace if (System::environment(false) != System::ENV_PRODUCTION) { echo "Trace:\n"; array_walk($eC, function ($stack, $index) { $trace = $index + 1 . '.'; $function = implode('->', array_filter(array(@$stack['class'], @$stack['function']))); if ($function) { $trace .= " {$function}()"; } unset($function); if (@$stack['file']) { $trace .= " {$stack['file']}"; if (@$stack['line']) { $trace .= ":{$stack['line']}"; } } echo "{$trace}\n"; }); } } // CLI exit code on Exceptions and Errors if (in_array($logType, array(LogLevel::ERROR, LogLevel::CRITICAL, LogLevel::ALERT, LogLevel::EMERGENCY))) { $exitCode = $e->getCode(); if ($exitCode <= 0) { $exitCode = 1; } die($exitCode); } }