/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* ---
*
* main.c: Empire Server main, startup and shutdown
- *
+ *
* Known contributors to this file:
* Dave Pare, 1994
* Steve McClure, 1996, 1998
* Doug Hay, 1998
- * Ron Koenderink, 2004-2005
- * Markus Armbruster, 2005-2006
+ * Ron Koenderink, 2004-2009
+ * Markus Armbruster, 2005-2008
*/
#include <config.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
+#ifndef _WIN32
+#include <sys/wait.h>
+#endif
+#include <unistd.h>
#if defined(_WIN32)
-#define WIN32
#include <winsock2.h>
#undef NS_ALL
#include <process.h>
-#include <direct.h>
#include "service.h"
-#include "../lib/gen/getopt.h"
-#else
-#include <sys/types.h>
-#include <unistd.h>
#endif
#include "empio.h"
#include "file.h"
#include "journal.h"
#include "land.h"
+#include "match.h"
#include "misc.h"
#include "nat.h"
#include "nuke.h"
#include "ship.h"
#include "version.h"
+static void ignore(void);
+static void crash_dump(void);
static void create_pidfile(char *, pid_t);
#if defined(_WIN32)
static void loc_NTTerm(void);
#endif
+/*
+ * Lock to synchronize player threads with update and shutdown.
+ * Update and shutdown takes it exclusive, commands take it shared.
+ */
+empth_rwlock_t *play_lock;
+
static char pidfname[] = "server.pid";
/* Run as daemon? If yes, detach from controlling terminal etc. */
static int daemonize = 1;
+static void
+help(char *program_name, char *complaint)
+{
+ if (complaint)
+ fprintf(stderr, "%s: %s\n", program_name, complaint);
+ fprintf(stderr, "Try -h for help.\n");
+}
+
static void
print_usage(char *program_name)
{
printf("Usage: %s [OPTION]...\n"
- " -d debug mode\n"
+ " -d debug mode, implies -E abort\n"
" -e CONFIG-FILE configuration file\n"
" (default %s)\n"
+ " -E ACTION what to do on oops: abort, crash-dump, nothing (default)\n"
" -h display this help and exit\n"
#ifdef _WIN32
" -i install service `%s'\n"
#endif
" -p threading debug mode, implies -d\n"
#ifdef _WIN32
- " -r remove service `%s'\n"
- " -R NAME remove service NAME\n"
+ " -u uninstall service `%s'\n"
+ " -U NAME uninstall service NAME\n"
#endif
" -s enable stack checking\n"
+ " -R RANDOM-SEED random seed\n"
" -v display version information and exit\n",
program_name, dflt_econfig
#ifdef _WIN32
int
main(int argc, char **argv)
{
+ static char *oops_key[] = { "abort", "crash-dump", "nothing", NULL };
+ static void (*oops_hndlr[])(void) = { abort, crash_dump, ignore };
int flags = 0;
#if defined(_WIN32)
int install_service_set = 0;
int remove_service_set = 0;
#endif
char *config_file = NULL;
- int op, sig;
+ int op, idx, sig;
+ unsigned seed = time(NULL);
+
+ oops_handler = ignore;
#ifdef _WIN32
-# define XOPTS "iI:rR:"
+# define XOPTS "iI:uU:"
#else
# define XOPTS
#endif
- while ((op = getopt(argc, argv, "de:hpsv" XOPTS)) != EOF) {
+ while ((op = getopt(argc, argv, "de:E:hpsR:v" XOPTS)) != EOF) {
switch (op) {
case 'p':
flags |= EMPTH_PRINT;
/* fall through */
case 'd':
- debug = 1;
+ oops_handler = abort;
daemonize = 0;
break;
case 'e':
config_file = optarg;
break;
+ case 'E':
+ idx = stmtch(optarg, oops_key, 0, sizeof(*oops_key));
+ if (idx < 0) {
+ help(argv[0], "invalid argument for -E");
+ return EXIT_FAILURE;
+ }
+ oops_handler = oops_hndlr[idx];
+ break;
#if defined(_WIN32)
case 'I':
service_name = optarg;
case 'i':
install_service_set++;
break;
- case 'R':
+ case 'U':
service_name = optarg;
/* fall through */
- case 'r':
+ case 'u':
remove_service_set++;
break;
#endif /* _WIN32 */
case 's':
flags |= EMPTH_STACKCHECK;
break;
+ case 'R':
+ seed = strtoul(optarg, NULL, 10);
+ break;
case 'v':
printf("%s\n\n%s", version, legal);
return EXIT_SUCCESS;
print_usage(argv[0]);
return EXIT_SUCCESS;
default:
- fprintf(stderr, "Try -h for help.\n");
+ help(argv[0], NULL);
return EXIT_FAILURE;
}
}
#if defined(_WIN32)
- if ((debug || flags || config_file != NULL) &&
+ if ((!daemonize || flags || config_file != NULL) &&
remove_service_set) {
fprintf(stderr, "Can't use -p, -s, -d or -e with either "
- "-r or -R options\n");
+ "-u or -U options\n");
exit(EXIT_FAILURE);
}
- if ((debug || flags) && install_service_set) {
+ if ((!daemonize || flags) && install_service_set) {
fprintf(stderr, "Can't use -d, -p or -s with either "
"-i or -I options\n");
exit(EXIT_FAILURE);
}
if (install_service_set && remove_service_set) {
- fprintf(stderr, "Can't use both -r or -R and -i or -I "
+ fprintf(stderr, "Can't use both -u or -U and -i or -I "
"options\n");
exit(EXIT_FAILURE);
}
}
#endif /* _WIN32 */
+ empfile_init();
if (emp_config(config_file) < 0)
exit(EXIT_FAILURE);
- ef_init();
- if (chdir(configdir)) {
- fprintf(stderr, "Can't chdir to %s (%s)\n",
- configdir, strerror(errno));
- exit(EXIT_FAILURE);
- }
- if (chdir(builtindir)) {
- fprintf(stderr, "Can't chdir to %s (%s)\n",
- builtindir, strerror(errno));
- exit(EXIT_FAILURE);
- }
+ empfile_fixup();
if (read_builtin_tables() < 0)
exit(EXIT_FAILURE);
- if (chdir(configdir)) {
- fprintf(stderr, "Can't chdir to %s (%s)\n",
- configdir, strerror(errno));
- exit(EXIT_FAILURE);
- }
if (read_custom_tables() < 0)
exit(EXIT_FAILURE);
if (chdir(gamedir)) {
return install_service(program_name, service_name, config_file);
#endif /* _WIN32 */
- init_server();
+ init_server(seed);
#if defined(_WIN32)
if (daemonize != 0) {
}
#endif /* !_WIN32 */
start_server(flags);
+ journal_prng(seed);
for (;;) {
sig = empth_wait_for_signal();
#ifdef SIGHUP
if (sig == SIGHUP) {
- journal_close();
- journal_open();
+ /* if you make changes here, also update relo() */
+ journal_reopen();
+ update_reschedule();
+ logreopen();
continue;
}
#endif
return EXIT_SUCCESS;
}
+static void
+ignore(void)
+{
+}
+
+static void
+crash_dump(void)
+{
+#ifdef _WIN32
+ logerror("Crash dump is not implemented");
+#else
+ pid_t pid;
+ int status;
+
+ fflush(NULL);
+ pid = fork();
+ if (pid < 0) {
+ logerror("Can't fork for crash dump (%s)", strerror(errno));
+ return;
+ }
+ if (pid == 0)
+ raise(SIGABRT); /* child */
+
+ /* parent */
+ while (waitpid(pid, &status, 0) < 0) {
+ if (errno != EINTR) {
+ logerror("Can't get crash dumping child's status (%s)",
+ strerror(errno));
+ return;
+ }
+ }
+ run_hook(post_crash_dump_hook, "post-crash-dump");
+ logerror("Crash dump complete");
+#endif
+}
/*
* Initialize for serving, acquire resources.
*/
void
-init_server(void)
+init_server(unsigned seed)
{
- srandom(time(NULL));
+ srandom(seed);
#if defined(_WIN32)
loc_NTInit();
#endif
- update_policy_check();
player_init();
ef_init_srv();
io_init();
init_nreport();
- if (opt_MOB_ACCESS) {
- /* This fixes up mobility upon restart */
- mobility_init();
- }
-
loginit("server");
}
empth_init((void **)&player, flags);
- empth_create(PP_ACCEPT, player_accept, (50 * 1024), flags,
- "AcceptPlayers", "Accept network connections", 0);
- empth_create(PP_KILLIDLE, player_kill_idle, (50 * 1024), flags,
- "KillIdle", "Kills idle player connections", 0);
- empth_create(PP_TIMESTAMP, delete_lostitems, (50 * 1024), flags,
- "DeleteItems", "Deletes old lost items", 0);
- if (opt_MOB_ACCESS) {
- /* Start the mobility access check thread */
- empth_create(PP_TIMESTAMP, mobility_check, (50 * 1024), flags,
- "MobilityCheck", "Writes the timestamp file", 0);
- }
+ if (journal_startup() < 0)
+ exit(1);
+
+ empth_create(player_accept, 50 * 1024, flags, "AcceptPlayers", NULL);
market_init();
update_init();
#if defined(_WIN32)
loc_NTTerm();
#endif
+ journal_shutdown();
remove(pidfname);
}
logerror("Shutdown commencing (cleaning up threads.)");
- for (p = player_next(0); p != 0; p = player_next(p)) {
+ for (p = player_next(NULL); p; p = player_next(p)) {
if (p->state != PS_PLAYING)
continue;
pr_flash(p, "Server shutting down...\n");
p->state = PS_SHUTDOWN;
+ p->may_sleep = PLAYER_SLEEP_NEVER;
p->aborted++;
if (p->command) {
pr_flash(p, "Shutdown aborting command\n");
}
empth_wakeup(p->proc);
}
- empth_rwlock_wrlock(update_lock);
- /* rely on player_kill_idle() for killing hung player threads */
+ empth_rwlock_wrlock(play_lock);
if (sig)
logerror("Server shutting down on signal %d", sig);
else
projects / empserver / blobdiff