Re: Detect Disconnect in WinSock 2.0

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You can poll socket by select(...) function in separate thread.

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"Ahmad Jalil Qarshi" <ahmaddearNO@xxxxxxxxxxxxxxx> wrote in message
news:%23SkwiJXbIHA.5348@xxxxxxxxxxxxxxxxxxxxxxx
Hi,

I am using WinSock 2.0 library in my client/server application. I have to
confirm one thing.

If I call the connect function in my client application to connect with
the running server, connection is established successfully. Now if I stop
the server I can't get any intimation regarding the disconnection. So how
to detect the disconnection at client side?

In other case if after successful connection I try to send/receive data
to/from server and meanwhile the server stops this is handled gracefully.

Problem is only when connection is established and I am not going to
send/receive data for some time.

I have few solutions for that like:
1- Send some PING message and expect PONG in response to check if
connection is established or not after a specific time interval.
2- Start another thread that continuously wait for data to be received.
(i.e. call recv() function in a while loop) if failed to receive data send
Disconnect notification to main application.

But I want to know some better way to do that.

Any recommendations.

Regards,

Ahmad Jalil Qarshi



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