117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2016, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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*
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* Empire is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* shutdown.c: Shuts down server. Runs at low priority.
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*
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* Known contributors to this file:
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* Ken Stevens, 1995
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* Markus Armbruster, 2007-2013
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*/
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#include <config.h>
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#include <time.h>
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#include "empthread.h"
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#include "prototypes.h"
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#include "server.h"
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int shutdown_pending;
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static empth_t *shutdown_thread;
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static void shutdown_sequence(void *unused);
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/*
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* Initiate shutdown in @mins_from_now minutes.
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* If @mins_from_now is negative, cancel any pending shutdown instead.
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* Return -1 on error, zero when no shutdown was pending, positive
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* number when a pending shutdown was modified.
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*/
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int
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shutdown_initiate(int mins_from_now)
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{
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int old_pending = shutdown_pending;
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if (mins_from_now < 0) {
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if (shutdown_pending) {
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shutdown_pending = 0;
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pr_wall("The server shutdown has been cancelled!\n");
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}
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return old_pending;
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}
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shutdown_pending = mins_from_now + 1;
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if (shutdown_thread) {
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if (old_pending)
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pr_wall("The shutdown time has been changed to %d minutes!\n",
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mins_from_now);
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empth_wakeup(shutdown_thread);
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} else {
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shutdown_thread = empth_create(shutdown_sequence, 65536, 0,
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"shutdownSeq", NULL);
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if (!shutdown_thread) {
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shutdown_pending = 0;
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return -1;
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}
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}
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return old_pending;
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}
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static void
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shutdown_sequence(void *unused)
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{
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time_t now;
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pr_wall("The server will shut down in %d minutes!\n",
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shutdown_pending - 1);
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while (shutdown_pending > 0) {
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--shutdown_pending;
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time(&now);
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if (shutdown_pending <= 1440) { /* one day */
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if (shutdown_pending == 0) {
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shutdwn(0);
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} else if (shutdown_pending == 1) {
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pr_wall("Server shutting down in 1 minute!\n");
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} else if (shutdown_pending <= 5) {
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pr_wall("Server shutting down in %d minutes!\n",
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shutdown_pending);
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} else if (shutdown_pending <= 60
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&& shutdown_pending % 10 == 0) {
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pr_wall("The server will be shutting down in %d minutes!\n",
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shutdown_pending);
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} else if (shutdown_pending % 60 == 0) {
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pr_wall("The server will be shutting down %d hours from now.\n",
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shutdown_pending / 60);
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}
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}
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/* FIXME error due to late wakeup accumulates */
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empth_sleep(now + 60);
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}
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shutdown_thread = NULL;
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}
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