Function lwp_session_delete

components/lwp/lwp_session.c:86–138

}

int lwp_session_delete(rt_session_t session)
{
    int retry = 1;
    lwp_tty_t ctty;

    /* parameter check */
    if (session == RT_NULL)
    {
        return -EINVAL;
    }

    /* clear children sid */
    lwp_session_update_children_info(session, 0);

    while (retry)
    {
        retry = 0;
        ctty = session->ctty;
        SESS_LOCK_NESTED(session);

        if (session->ctty == ctty)
        {
            if (ctty)
            {
                SESS_UNLOCK(session);

                /**
                 * Note: it's safe to release the session lock now. Even if someone
                 * race to acquire the tty, it's safe under protection of tty_lock()
                 * and the check inside
                 */
                tty_lock(ctty);
                tty_rel_sess(ctty, session);
                session->ctty = RT_NULL;
            }
            else
            {
                SESS_UNLOCK(session);
            }
        }
        else
        {
            SESS_UNLOCK(session);
            retry = 1;
        }
    }

    rt_object_detach(&(session->object));
    rt_mutex_detach(&(session->mutex));
    rt_free(session);

    return 0;
}

int lwp_session_insert(rt_session_t session, rt_processgroup_t group)
{