I am writing a client - server system in which I used NON-BLOCKING sockets. My problem is to detect error { while performing send() or write() } that may occur while data transfer. Example lets say, while the data is being transferred the peer crashes. Another case there is some network problem, something like wire unplugged etc.

As of now, I am using a high level ACK, that peer sends after receiving the complete data.

Ripunjay Tripathi