iphone - iOS 中的 Asyncsocket 断开连接事件

Question

我正在 iOS 中开发 Asyncsocket 客户端。

https://github.com/robbiehanson/CocoaAsyncSocket

我怎么知道服务器和客户端之间的套接字连接何时断开？

我应该使用什么委托(delegate)方法来检测断开连接？

谢谢。

Answer 1

您应该阅读 AsyncSocket.h，下面的内容非常接近顶部(第一个回调实际上会为您提供有关断开连接原因的信息，这可能很有用)

/**
 * In the event of an error, the socket is closed.
 * You may call "unreadData" during this call-back to get the last bit of data off the socket.
 * When connecting, this delegate method may be called
 * before"onSocket:didAcceptNewSocket:" or "onSocket:didConnectToHost:".
**/
- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err;

/**
 * Called when a socket disconnects with or without error.  If you want to release a socket after it disconnects,
 * do so here. It is not safe to do that during "onSocket:willDisconnectWithError:".
 * 
 * If you call the disconnect method, and the socket wasn't already disconnected,
 * this delegate method will be called before the disconnect method returns.
**/
- (void)onSocketDidDisconnect:(AsyncSocket *)sock;