Coroutine::resume
最后更新于：2022-04-02 06:26:03
# Coroutine::resume
[TOC]
恢复某个协程，使其继续运行。
~~~
function Swoole\Coroutine::resume(int $coroutineId);
~~~
* 参数`$coroutineId`为要恢复的协程`ID`，在协程内可以使用`Coroutine::getUid`获取到协程的`ID`
* 当前协程处于挂起状态时，另外的协程中可以使用`resume`再次唤醒当前协程
## 实例
~~~
use Swoole\Coroutine as co;
$id = go(function(){
$id = co::getUid();
echo "start coro $id\n";
co::suspend();
echo "resume coro $id @1\n";
co::suspend();
echo "resume coro $id @2\n";
});
echo "start to resume $id @1\n";
co::resume($id);
echo "start to resume $id @2\n";
co::resume($id);
echo "main\n";
--EXPECT--
start coro 1
start to resume 1 @1
resume coro 1 @1
start to resume 1 @2
resume coro 1 @2
main
~~~
';