static void fcgid_maint()

in modules/fcgid/fcgid_pm_unix.c [126:187]

• 44 lines of code
• 10 McCabe index (conditional complexity)

static void fcgid_maint(int reason, void *data, apr_wait_t status)
{
    apr_proc_t *proc = data;
    int mpm_state;

    switch (reason) {
    case APR_OC_REASON_DEATH:
        apr_proc_other_child_unregister(data);
        if (ap_mpm_query(AP_MPMQ_MPM_STATE, &mpm_state) == APR_SUCCESS
            && mpm_state != AP_MPMQ_STOPPING) {
            if (status == DAEMON_STARTUP_ERROR) {
                ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL,
                             "mod_fcgid: fcgid process manager failed to initialize; "
                             "stopping httpd");
                /* mod_fcgid requests will hang due to lack of a process manager;
                 * try to terminate httpd
                 */
                kill(getpid(), SIGTERM);

            }
            else {
                ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL,
                             "mod_fcgid: fcgid process manager died, restarting the server");

                /* HACK: I can't just call create_process_manager() to
                   restart a process manager, because it will use the dirty
                   share memory, I have to kill myself a SIGHUP, to make
                   a clean restart */
                /* FIXME: This is the httpd parent; mod_fcgid is doing a hard
                 * restart of the server!
                 */
                if (kill(getpid(), SIGHUP) < 0) {
                    ap_log_error(APLOG_MARK, APLOG_EMERG,
                                 apr_get_os_error(), NULL,
                                 "mod_fcgid: can't send SIGHUP to self");
                    exit(0);
                }
            }
        }
        break;
    case APR_OC_REASON_RESTART:
        apr_proc_other_child_unregister(data);
        break;
    case APR_OC_REASON_LOST:
        apr_proc_other_child_unregister(data);
        /* It hack here too, a note above */
        /* FIXME: This is the httpd parent; mod_fcgid is doing a hard
         * restart of the server!
         */
        if (kill(getpid(), SIGHUP) < 0) {
            ap_log_error(APLOG_MARK, APLOG_EMERG,
                         apr_get_os_error(), NULL,
                         "mod_fcgid: can't send SIGHUP to self");
            exit(0);
        }
        break;
    case APR_OC_REASON_UNREGISTER:
        /* I don't think it's going to happen */
        kill(proc->pid, SIGHUP);
        break;
    }
}