Function lwp_pgrp_remove

components/lwp/lwp_pgrp.c:202–235

}

int lwp_pgrp_remove(rt_processgroup_t group, rt_lwp_t process)
{
    rt_bool_t is_empty = RT_FALSE;

    /* parameter check */
    if (group == RT_NULL || process == RT_NULL)
    {
        return -EINVAL;
    }

    PGRP_LOCK_NESTED(group);
    LWP_LOCK_NESTED(process);
    RT_ASSERT(rt_mutex_get_hold(&process->lwp_lock) <= rt_mutex_get_hold(&group->mutex));

    rt_list_remove(&(process->pgrp_node));
    /* clear children sid and pgid */
    process->pgrp = RT_NULL;
    process->pgid = 0;
    process->sid = 0;

    LWP_UNLOCK(process);

    is_empty = rt_list_isempty(&(group->process));

    PGRP_UNLOCK(group);

    if (is_empty)
    {
        lwp_pgrp_delete(group);
        return 1;
    }

    return 0;
}

int lwp_pgrp_move(rt_processgroup_t group, rt_lwp_t process)
{