Function lwp_pid_put_locked

components/lwp/lwp_pid.c:274–291

* @brief Release a PID back to the free list while holding the PID lock * * @param[in] pid The process ID to release (must not be 0) * * @note This function removes the specified PID from the active PID tree and * adds it to the free list. The operation is performed atomically while * holding the PID management lock. */

 *       holding the PID management lock.
 */
static void lwp_pid_put_locked(pid_t pid)
{
    struct lwp_avl_struct *p;

    if (pid == 0)
    {
        return;
    }

    p  = lwp_avl_find(pid, lwp_pid_root);
    if (p)
    {
        p->data = RT_NULL;
        lwp_avl_remove(p, &lwp_pid_root);
        p->avl_right = lwp_pid_free_head;
        lwp_pid_free_head = p;
    }
}

#ifdef RT_USING_DFS_PROCFS
    /**