断电那种网络也有消息？
项目中关于网络编程部分。
同事说断电那种也会响应网络关闭事件？
还说TCP有自己的心跳包？

由于代码封装等原因，没能查看和测试，问下各位大虾？
真的能实现无论任何情况下都能响应网络关闭事件的代码？
TCP有自己的心跳包？

[解决办法]
问你同事，这个还真没有听说过，应该是没有
[解决办法]

C/C++ code

struct TTCP_KeepAlive{    ::u_long onoff;    ::u_long keepalivetime;    ::u_long keepAliveInterval;};TTCP_KeepAlive *TCP_KeepAlive;TCP_KeepAlive=new TTCP_KeepAlive[1];TCP_KeepAlive->onoff=1;TCP_KeepAlive->keepalivetime=1000;TCP_KeepAlive->keepAliveInterval=1000;DWord Ret;WSAIoctl(AContext->Connection->Socket->Binding->Handle,IOC_IN|IOC_VENDOR|4,&TCP_KeepAlive,sizeof(*TCP_KeepAlive),NULL,0,&Ret,NULL,NULL);