/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2004, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* shutdown.c: Shuts down server. Runs at low priority.
- *
+ *
* Known contributors to this file:
* Ken Stevens, 1995
+ * Markus Armbruster, 2007-2008
*/
-#include "misc.h"
-#include "player.h"
-#include "empio.h"
+#include <config.h>
+
+#include <time.h>
#include "empthread.h"
-#include "proto.h"
-#include "nat.h"
#include "file.h"
-#include <time.h>
-#include "server.h"
+#include "nat.h"
#include "prototypes.h"
+#include "server.h"
int shutdown_pending;
+static empth_t *shutdown_thread;
+
+static void shutdown_sequence(void *unused);
-void
-shutdown_init(void)
+/*
+ * Initiate shutdown in MINS_FROM_NOW minutes.
+ * If MINS_FROM_NOW is negative, cancel any pending shutdown instead.
+ * Return -1 on error, zero when no shutdown was pending, positive
+ * number when a pending shutdown was modified.
+ */
+int
+shutdown_initiate(int mins_from_now)
{
- shutdown_pending = 0;
+ int old_pending = shutdown_pending;
+
+ if (mins_from_now < 0) {
+ if (shutdown_pending) {
+ shutdown_pending = 0;
+ pr_wall("The server shutdown has been cancelled!\n");
+ }
+ return old_pending;
+ }
+
+ shutdown_pending = mins_from_now + 1;
+
+ if (shutdown_thread) {
+ if (old_pending)
+ pr_wall("The shutdown time has been changed to %d minutes!\n",
+ mins_from_now);
+ empth_wakeup(shutdown_thread);
+ } else {
+ shutdown_thread = empth_create(shutdown_sequence, 50 * 1024, 0,
+ "shutdownSeq", NULL);
+ if (!shutdown_thread) {
+ shutdown_pending = 0;
+ return -1;
+ }
+ }
+
+ return old_pending;
}
-void
+static void
shutdown_sequence(void *unused)
{
- struct natstr *god;
- struct tm *tm;
time_t now;
- s_char header[100];
- if (shutdown_pending <= 0) {
- shutdown_pending = 0;
- logerror("shutdown called with 0 shutdown_pending");
- empth_exit();
- return;
- }
- god = getnatp(0);
+ pr_wall("The server will shut down in %d minutes!\n",
+ shutdown_pending - 1);
+
while (shutdown_pending > 0) {
--shutdown_pending;
time(&now);
if (shutdown_pending <= 1440) { /* one day */
- tm = localtime(&now);
- sprintf(header, "BROADCAST from %s @ %02d:%02d: ",
- god->nat_cnam, tm->tm_hour, tm->tm_min);
- if (!shutdown_pending) {
- pr_wall("%sServer shutting down NOW!\n", header);
+ if (shutdown_pending == 0) {
shutdwn(0);
} else if (shutdown_pending == 1) {
- pr_wall("%sServer shutting down in 1 minute!\n", header);
+ pr_wall("Server shutting down in 1 minute!\n");
} else if (shutdown_pending <= 5) {
- pr_wall("%sServer shutting down in %d minutes!\n", header,
+ pr_wall("Server shutting down in %d minutes!\n",
shutdown_pending);
} else if (shutdown_pending <= 60
&& shutdown_pending % 10 == 0) {
- pr_wall("%sThe server will be shutting down in %d minutes!\n",
- header, shutdown_pending);
+ pr_wall("The server will be shutting down in %d minutes!\n",
+ shutdown_pending);
} else if (shutdown_pending % 60 == 0) {
- pr_wall("%sThe server will be shutting down %d hours from now.\n",
- header, (int)(shutdown_pending / 60));
+ pr_wall("The server will be shutting down %d hours from now.\n",
+ shutdown_pending / 60);
}
}
+ /* FIXME error due to late wakeup accumulates */
empth_sleep(now + 60);
}
- empth_exit();
+
+ shutdown_thread = NULL;
}