Function socket_recv

Plugins/UnLuaExtensions/LuaSocket/Source/src/wsocket.cpp:250–274

-------------------------------------------------------------------------*\ * Receive with timeout \*-------------------------------------------------------------------------*/

* Receive with timeout
\*-------------------------------------------------------------------------*/
int socket_recv(p_socket ps, char *data, size_t count, size_t *got,
        p_timeout tm)
{
    int err, prev = IO_DONE;
    *got = 0;
    if (*ps == SOCKET_INVALID) return IO_CLOSED;
    for ( ;; ) {
        int taken = recv(*ps, data, (int) count, 0);
        if (taken > 0) {
            *got = taken;
            return IO_DONE;
        }
        if (taken == 0) return IO_CLOSED;
        err = WSAGetLastError();
        /* On UDP, a connreset simply means the previous send failed.
         * So we try again.
         * On TCP, it means our socket is now useless, so the error passes.
         * (We will loop again, exiting because the same error will happen) */
        if (err != WSAEWOULDBLOCK) {
            if (err != WSAECONNRESET || prev == WSAECONNRESET) return err;
            prev = err;
        }
        if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
    }
}

/*-------------------------------------------------------------------------*\
* Recvfrom with timeout