TCP data before session closing

Question

Is there anyway that will allow to get all data sent via tcp before the session gets closed? What I am getting is I have to close the session from server only after that data is received, and moreover I have to manually pass EOL or carriage-return or "\n" or "\r".

Any help and suggestions is appreciated.

Answer 1

You could try setting the SO_LINGER socket option:

GCDAsyncSocket asyncSocket = ...;
struct linger linger;
linger.l_onoff = 1;
linger.l_linger = 30;
int rv = setsockopt([asyncSocket socketFD], SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
if (rv < 0)
{
    // handle error
}