由于asyc模式的connect没有超时模式，需要使用timer来释放cli，此时active=0，导致内存泄露，因此此处不检测active，只检测socket。特别要注意的是，timer释放cli的时候，务必不能使用引用模式！
由于asyc模式的connect没有超时模式，需要使用timer来释放cli，此时active=0，导致内存泄露，因此此处不检测active，只检测socket。特别要注意的是，timer释放cli的时候，务必不能使用引用模式！

LinkedDestiny/swoole-src,swoole/swoole-src,AJSoft/swoole-src,yangchaogit/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,swoole/swoole-src,AJSoft/swoole-src,redoufu/swoole,AJSoft/swoole-src,yangchaogit/swoole-src,AJSoft/swoole-src,redoufu/swoole,AJSoft/swoole-src,tutanhamon/swoole-src,tutanhamon/swoole-src,coooold/swoole-src,coooold/swoole-src,tutanhamon/swoole-src,AJSoft/swoole-src,tutanhamon/swoole-src,redoufu/swoole,swoole/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,coooold/swoole-src,LinkedDestiny/swoole-src,coooold/swoole-src,swoole/swoole-src,LinkedDestiny/swoole-src,tutanhamon/swoole-src,yangchaogit/swoole-src,LinkedDestiny/swoole-src,swoole/swoole-src