Setting timeout in blocking mode

Hi,
I'm currently wondering why there is now wait so specify a timeout when
working on blocking mode.

If we have a look on _libssh2_wait_socket() we can see that the select
blocks infinitely, but there is a
code which should handle the timeout.

Code:
    /* Note that this COULD be made to use a timeout that perhaps could
be
       customizable by the app or something... */
    rc = select(session->socket_fd + 1, readfd, writefd, NULL, NULL);

    if(rc <= 0) {
        /* timeout (or error), bail out with a timeout error */
        session->err_code = LIBSSH2_ERROR_TIMEOUT;
        return LIBSSH2_ERROR_TIMEOUT;
    }

Is there any reason not to add a timeout parameter as follows?:
    rc = select(session->socket_fd + 1, readfd, writefd, NULL,
session->timeout);

This would only require to add 'timeout' into the session struct and to
create a function API which permits to set its value.
Regards
Sébastien

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