static void kill_all_subprocess()

in modules/fcgid/fcgid_pm_main.c [408:466]

• 45 lines of code
• 8 McCabe index (conditional complexity)

static void kill_all_subprocess(server_rec *main_server)
{
    apr_time_t waittime = 1024 * 16;
    size_t i, table_size = proctable_get_table_size();
    int not_dead_yet;
    int cur_action, next_action;
    apr_time_t starttime = apr_time_now();
    struct {
        action_t action;
        apr_time_t action_time;
    } action_table[] = {
        {DO_NOTHING,      0}, /* dummy entry for iterations where
                              * we reap children but take no action
                              * against stragglers
                              */
        {KILL_GRACEFULLY, apr_time_from_sec(0)},
        {KILL_GRACEFULLY, apr_time_from_sec(1)},
        {KILL_FORCEFULLY, apr_time_from_sec(8)},
        {HARD_WAIT,       apr_time_from_sec(8)}
    };
    fcgid_procnode *proc_table = proctable_get_table_array();

    next_action = 1;
    do {
        apr_sleep(waittime);
        /* don't let waittime get longer than 1 second; otherwise, we don't
         * react quickly to the last child exiting, and taking action can
         * be delayed
         */
        waittime = waittime * 4;
        if (waittime > apr_time_from_sec(1)) {
            waittime = apr_time_from_sec(1);
        }

        /* see what action to take, if any */
        if (action_table[next_action].action_time <= apr_time_now() - starttime) {
            cur_action = next_action;
            ++next_action;
        }
        else {
            cur_action = 0; /* index of DO_NOTHING entry */
        }

        /* now see who is done */
        not_dead_yet = 0;
        for (i = 0; i < table_size; i++) {
            if (!proc_table[i].proc_pool) {
                continue; /* unused */
            }

            if (!reclaim_one_pid(main_server, &proc_table[i],
                                 action_table[cur_action].action)) {
                ++not_dead_yet;
            }
        }

    } while (not_dead_yet &&
             action_table[cur_action].action != HARD_WAIT);
}