GearmanClient::setCreatedCallback
(PECL gearman >= 0.5.0)
GearmanClient::setCreatedCallback — Set a callback for when a task is queued
说明
Sets a callback function to be called when a task is received and queued by the Gearman job server.
注意:
The callback will only be triggered for tasks that are added (e.g. by calling GearmanClient::addTask()) after calling this method.
参数
callback-
调用的函数或方法。应该返回有效的 Gearman 返回值。
如果没有返回语句，默认是
GEARMAN_SUCCESS。task-
调用此 callback 的任务。
context-
Whatever has been passed to GearmanClient::addTask() (or equivalent method) as
context.
参见
- GearmanClient::setDataCallback() - Callback function when there is a data packet for a task
- GearmanClient::setCompleteCallback() - Set a function to be called on task completion
- GearmanClient::setExceptionCallback() - Set a callback for worker exceptions
- GearmanClient::setFailCallback() - Set callback for job failure
- GearmanClient::setStatusCallback() - Set a callback for collecting task status
- GearmanClient::setWarningCallback() - Set a callback for worker warnings
- GearmanClient::setWorkloadCallback() - Set a callback for accepting incremental data updates
＋添加备注
用户贡献的备注 2 notes
stanislav dot reshetnev at gmail dot com ¶
10 years ago
Callback can accept not only GearmanTask object, but it can recieve a variable from GearmanClient::addTask():
<?php
$client = new GearmanClient();
$client->addServer();
$client->setCreatedCallback(function(GearmanTask $task, $some_info) {
// now we have $some_info
// ...
});
$client->addTask($function_name, $workload, "some info");
?>
So, we can send to our anonymous function something like $workload, because we can't get it from GearmanTask object. It may be usefull for logging of tasks queuing.
Karl Rixon ¶
10 years ago
Contrary to the documentation, this callback accepts an instance of \GearmanTask, not \GearmanClient.备份地址：http://www.lvesu.com/blog/php/gearmanclient.setcreatedcallback.php