Function lwp_teardown

components/lwp/lwp_runtime.c:140–161

reverse operation of lwp_startup() */

/* reverse operation of lwp_startup() */
sysret_t lwp_teardown(struct rt_lwp *lwp, void (*cb)(void))
{
    struct rt_work *work;

    if (lwp->pid != INIT_PID && _get_parent_pid(lwp) != INIT_PID)
    {
        /* The calling process has insufficient privilege */
        return -EPERM;
    }

    work = &_teardown_work;
    rt_work_init(work, _teardown_entry, cb);

#define SOME_DELAY (RT_TICK_PER_SECOND / 10) /* allow idle to cleanup resource */
    rt_work_submit(work, SOME_DELAY);

    lwp_exit(lwp, LWP_CREATE_STAT_EXIT(EXIT_SUCCESS));

    /* never return */
    RT_ASSERT(0);
    return 0;
}