troubleshooting Question

Socket shutdown: difference between Windows and Linux

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RobsonFlag for Poland asked on
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I've read documentation for shutdown function in <a href="">GNU C Library</a> and <a href="">MSDN</a> and I'm slightly confused. It seems to me that glibc shutdown is "hard" (doesn't wait transmission of already send data), while behaviour of Windows shutdown depends on SO_LINGER setting. Or am I wrong? In both systems SO_LINGER option seems to affect close() syscall: maybe shutdown breaks connection non-gracefully on both systems regardless of SO_LINGER? Can anybody explain that?

I'm particulary interested in doing hard shutdown (discarding all data waiting to send) on both platforms. How to do that?

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