Programming :: TCP Server Not Detecting Broken Connection?

I am attempting to write a server application in C on a linux machine which listens for TCP connections and transfers data. I am trying to detecton the server side when the connection is broken. The closest thing that I got to work was looking at the return value from sending data. For example the server�s job is to mainly read data from the socket but to test if the connection is still up the server sends data periodically back to the client. I look at the return value from send() to determine if the connection is broken e.g.

Code:int ret = send(session->clientSocket, &data[sentCnt], count - sentCnt, MSG_NOSIGNAL)I found that this does not immediately return an error when the connection is broken. The reason for this is because even though the connection is broken send() is still successful because it is able to put it on the network buffer. To fix the issue I did the following things;

Code:
//set send timeout
struct timeval timeout;

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