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Can IO completion port socket close graceful?

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I work in WINNT.I use IO completion port mode in server program,and use nonblocking socket in client program.Both they are TCP stream socket.When I closesocket the socket which connect to the client,client can't always receive the last message from server. I know tcp socket ought to ensure all message has been received before close.But why IO completion port mode socket not?What can I do? Thank you very much! regards

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This topic is 4667 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

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