gearman中任务的优先级和返回状态实例分析_php技巧_

 doLow:最低优先 doNomal:正常优先级 doHigh:最优先执行

 doLowBackground doBackground doHighBackground

 addTaskLow addTask addTaskHigh addTaskLowBackground addTaskBackground addTaskHighBackground

addServer('127.0.0.1', 4730); $client->setCompleteCallback(function($task) { echo $task->data(), PHP_EOL; }); //分别添加不同优先级的Task $client->addTaskLow('sum', json_encode(array(100, 100))); $client->addTask('sum', json_encode(array(200, 200))); $client->addTaskHigh('sum', json_encode(array(300, 300))); $client->runTasks();

addServer('127.0.0.1', 4730); $worker->addFunction('sum', function($job) { $data = json_decode($job->workload(), true); $ret = $data[0] + $data[1]; echo $ret, PHP_EOL; sleep(1); return $ret; }); while($worker->work());

addServer('127.0.0.1', 4730); //任务排队时的回调 $client->setCreatedCallback('reverse_create'); //有任务数据包时的回调 $client->setDataCallback('reverse_data'); //收集任务状态的回调 $client->setStatusCallback('reverse_status'); //任务完成时的回调 $client->setCompleteCallback('reverse_complete'); //任务失败时的回调 $client->setFailCallback('reverse_fail'); //分别添加不同优先级的Task $client->addTaskLow('reverse', '1234567'); $client->addTask('reverse', 'hello'); $client->addTaskHigh('reverse', 'world'); $client->runTasks(); function reverse_create($task) { echo '任务创建(', $task->jobHandle() , '): ', PHP_EOL; } function reverse_data($task) { echo '接收数据(', $task->jobHandle() , '): ', $task->data(), PHP_EOL; } function reverse_status($task) { //taskNumerator()获取任务完成情况的分子 //taskDenominator()获取任务完成情况的分母 echo '完成情况(', $task->jobHandle() , '): ', $task->taskNumerator(), '/', $task->taskDenominator(), PHP_EOL; } function reverse_complete($task) { echo '任务完成(', $task->jobHandle() , '): ', $task->data(), PHP_EOL; } function reverse_fail($task) { echo '任务失败(', $task->jobHandle() , '): ', PHP_EOL; } 

addServer('127.0.0.1', 4730); $worker->addFunction('reverse', function($job) { //workload()返回接收的数据 $data = $job->workload(); //workloadSize()返回接收数据的字节大小 $dataSize = $job->workloadSize(); echo "worker: {$data} ({$dataSize}) \n"; $tmp = 0; $mid = $dataSize / 2; for($ix = 0; $ix < $mid; ++$ix) { $tmp = $data[$ix]; $data[$ix] = $data[$dataSize - $ix - 1]; $data[$dataSize - $ix - 1] = $tmp; //这里发送状态，会被client设置的回调reverse_status()接收到 //状态完成情况的分子与分母 $job->sendStatus($ix + 1, $mid + 1); //发送数据，被reverse_data()接收到 $job->sendData($data); sleep(1); } return $data; }); while($worker->work());