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分享CSocket的close是否可以完全的关闭连接，释放端口
我定义了一个CSocket类，监听一个端口，然后获得连接后 Accept(*pClient)
当pClient的OnClose事件触发后调用 CSocket::OnClose(nErrorCode)
这样是否可以完全的关闭连接和端口 保证服务器的正常运行？
是否需要作 shutdown(*pClient, 2);closesocket(*pClient);这样的操作才能完全释放？
当pClient的OnClose事件触发后调用 CSocket::OnClose(nErrorCode)
这样是否可以完全的关闭连接和端口 保证服务器的正常运行？
是否需要作 shutdown(*pClient, 2);closesocket(*pClient);这样的操作才能完全释放？
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laolaoliu2002 2006-11-13
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The shutdown function is used on all types of sockets to disable reception, transmission, or both.
The shutdown function does not close the socket. Any resources attached to the socket will not be freed until closesocket is invoked.
The shutdown function does not close the socket. Any resources attached to the socket will not be freed until closesocket is invoked.
okjpan 2006-11-13
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?
templarzq 2006-11-13
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laolaoliu2002(老刘----狂热的热爱人民币) ( ) 信誉：100 Blog 2006-11-13 11:28:11 得分: 0
shutdown和closesocket的作用是一样的.
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有区别的吧?closesocket才是彻底关闭socket
shutdown和closesocket的作用是一样的.
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有区别的吧?closesocket才是彻底关闭socket
okjpan 2006-11-13
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我现在服务器运行一段时间就无法连接上监听端口了，所以不知道是不是由于端口关闭不完全造成的，很郁闷
mynamelj 2006-11-13
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完全可以，不用优雅关闭。
如果是CAsyncSocket关闭可能受SO_LINGER,SO_DONTLINGER这两个选择的影响，但CSocket不会。
如果是CAsyncSocket关闭可能受SO_LINGER,SO_DONTLINGER这两个选择的影响，但CSocket不会。
laolaoliu2002 2006-11-13
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shutdown和closesocket的作用是一样的.
需要.
在你的OnClose里面调用shutdown或者closesocket.
需要.
在你的OnClose里面调用shutdown或者closesocket.
okjpan 2006-11-13
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?
okjpan 2006-11-13
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意思是close只是关闭了连接 并没有释放端口和资源？
laolaoliu2002 2006-11-13
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virtual void Close( );
This function releases the socket descriptor so that further references to it will fail with the error WSAENOTSOCK. If this is the last reference to the underlying socket, the associated naming information and queued data are discarded. The socket object's destructor calls Close for you.
For CAsyncSocket, but not for CSocket, the semantics of Close are affected by the socket options SO_LINGER and SO_DONTLINGER. For further information, see member function GetSockOpt.
This function releases the socket descriptor so that further references to it will fail with the error WSAENOTSOCK. If this is the last reference to the underlying socket, the associated naming information and queued data are discarded. The socket object's destructor calls Close for you.
For CAsyncSocket, but not for CSocket, the semantics of Close are affected by the socket options SO_LINGER and SO_DONTLINGER. For further information, see member function GetSockOpt.
snowbirdfly 2006-11-13
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那你看看是不是再听信的过程中，你调用了CSocket.close()这样的代码使得通信中断～～
okjpan 2006-11-13
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不是啊 是MFC类库里面的类啊
class CSocket : public CAsyncSocket
class CSocket : public CAsyncSocket
laolaoliu2002 2006-11-13
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CSocket类不是你自己写的吗?
okjpan 2006-11-13
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CSocket.close()是否会调用到closesocket呢？
难道CSocket类无法自身完成关闭的全部任务吗？
难道CSocket类无法自身完成关闭的全部任务吗？
