GearmanClient::setCompleteCallback
(PECL gearman >= 0.5.0)
GearmanClient::setCompleteCallback — Set a function to be called on task completion
说明
Use to set a callback function to be called when a GearmanTask is completed, or when GearmanJob::sendComplete() is invoked by a worker (whichever happens first).
This callback executes only when executing a GearmanTask using GearmanClient::runTasks(). It is not used for individual jobs.
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::setCreatedCallback() - Set a callback for when a task is queued
- 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
用户贡献的备注 1 note
One shall note, that callback function MUST either return a valid Gearman status code, or return nothing (do not return).
I.e. these are valid complete callbacks:
<?php
function goodCallbackOne(GearmanTask $task)
{
print_r($task);
}
?>
<?php
function goodCallbackTwo(GearmanTask $task)
{
print_r($task);
return GEARMAN_SUCCESS;
}
?>
While following is NOT, unless you want your client code to fail with Gearman error 'german wait:no active file descriptors':
<?php
function badCallbackTwo(GearmanTask $task)
{
print_r($task);
return true;
}
?>备份地址：http://www.lvesu.com/blog/php/gearmanclient.setcompletecallback.php