# onPipeMessage
当工作进程收到由sendMessage发送的管道消息时会触发onPipeMessage事件。worker/task进程都可能会触发onPipeMessage事件。函数原型：
~~~
void onPipeMessage(swoole_server $server, int $from_worker_id, string $message);
~~~
> onPipeMessage在swoole-1.7.9以上版本可用
| Swoole流程 |
|-----|
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- onMasterConnect
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- 历史：版本更新记录
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