2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2004, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * main.c: Thread and signal initialization for Empire Server
30 * Known contributors to this file:
32 * Steve McClure, 1996, 1998
38 #include <sys/ioctl.h>
48 #include "../lib/gen/getopt.h"
57 #include "empthread.h"
66 #include "prototypes.h"
68 static void nullify_objects(void);
69 static void init_files(void);
72 static void loc_NTInit(void);
75 static int mainpid = 0;
77 /* Debugging? If yes call abort() on internal error. */
79 /* Run as daemon? If yes, detach from controlling terminal etc. */
83 print_usage(char *program_name)
86 printf("Usage: %s -i -I service_name -r -R service_name -D datadir -e config_file -d\n", program_name);
87 printf("-i install service with the default name %s\n", DEFAULT_SERVICE_NAME);
88 printf("-r remove service with the default name %s\n", DEFAULT_SERVICE_NAME);
90 printf("Usage: %s -D datadir -e config_file -d -p -s\n", program_name);
91 printf("-p print flag\n");
92 printf("-s stack check flag (include print flag)\n");
94 printf("-d debug mode\n");
98 main(int argc, char **argv)
102 int install_service_set = 0;
103 char *service_name = NULL;
104 int remove_service_set = 0;
107 char *config_file = NULL;
109 #if defined(__linux__) && defined(_EMPTH_POSIX)
116 while ((op = getopt(argc, argv, "D:de:iI:rR:h")) != EOF) {
118 while ((op = getopt(argc, argv, "D:de:psh")) != EOF) {
132 config_file = optarg;
136 service_name = optarg;
141 install_service_set++;
145 service_name = optarg;
150 remove_service_set++;
154 flags |= EMPTH_PRINT;
158 flags |= EMPTH_PRINT | EMPTH_STACKCHECK;
164 print_usage(argv[0]);
170 if ((debug || datadir_set || config_file != NULL) &&
171 remove_service_set) {
172 logerror("Can't use -d, -D or -e with either "
173 "-r or -R options when starting the server");
176 if (debug && install_service_set) {
177 logerror("Can't use -d with either "
178 "-i or -I options when starting the server");
181 if (install_service_set && remove_service_set) {
182 logerror("Can't use both -r or -R and -i or -I options when starting "
190 if (remove_service_set)
191 return remove_service(service_name);
194 if (emp_config(config_file) < 0)
196 if (chdir(datadir)) {
197 fprintf(stderr, "Can't chdir to %s (%s)\n", datadir, strerror(errno));
202 if (install_service_set)
203 return install_service(argv[0], service_name, datadir_set, config_file);
209 if (daemonize != 0) {
210 SERVICE_TABLE_ENTRY DispatchTable[]={{"Empire Server", service_main},{NULL, NULL}};
211 if (StartServiceCtrlDispatcher(DispatchTable))
215 * If it is service startup error then exit otherwise
216 * start server in the foreground
218 if (GetLastError() != ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
219 logerror("Failed to dispatch service (%d)", GetLastError());
220 printf("Failed to dispatch service (%d)\n", GetLastError());
232 #if defined(__linux__) && defined(_EMPTH_POSIX)
233 strcpy(tbuf, argv[0]);
234 for (op = 1; op < argc; op++) {
236 strcat(tbuf, argv[op]);
238 sprintf(argv[0], "%s (main pid: %d)", tbuf, getpid());
243 /* We should never get here. But, just in case... */
260 update_policy_check();
270 if (opt_MOB_ACCESS) {
271 /* This fixes up mobility upon restart */
276 logerror("------------------------------------------------------");
277 logerror("Empire server (pid %d) started", (int)getpid());
281 start_server(int flags)
284 struct sigaction act;
285 #endif /* POSIXSIGNALS */
288 /* signal() should not be used with mit pthreads. Anyway if u
289 have a posix threads u definitly have posix signals -- Sasha */
290 #if defined (POSIXSIGNALS) || defined (_EMPTH_POSIX)
292 act.sa_flags = SA_SIGINFO;
294 sigemptyset(&act.sa_mask);
295 act.sa_handler = shutdwn;
296 /* pthreads on Linux use SIGUSR1 (*shrug*) so only catch it if not on
297 a Linux box running POSIX threads -- STM */
298 #if !(defined(__linux__) && defined(_EMPTH_POSIX))
299 sigaction(SIGUSR1, &act, NULL);
301 sigaction(SIGTERM, &act, NULL);
302 sigaction(SIGINT, &act, NULL);
303 act.sa_handler = panic;
304 sigaction(SIGBUS, &act, NULL);
305 sigaction(SIGSEGV, &act, NULL);
306 sigaction(SIGILL, &act, NULL);
307 sigaction(SIGFPE, &act, NULL);
308 act.sa_handler = SIG_IGN;
309 sigaction(SIGPIPE, &act, NULL);
311 if (debug == 0 && flags == 0) {
312 /* pthreads on Linux use SIGUSR1 (*shrug*) so only catch it if not on
313 a Linux box running POSIX threads -- STM */
314 #if !(defined(__linux__) && defined(_EMPTH_POSIX))
315 signal(SIGUSR1, shutdwn);
317 signal(SIGTERM, shutdwn);
318 signal(SIGBUS, panic);
319 signal(SIGSEGV, panic);
320 signal(SIGILL, panic);
321 signal(SIGFPE, panic);
322 signal(SIGINT, shutdwn);
324 signal(SIGPIPE, SIG_IGN);
325 #endif /* POSIXSIGNALS */
328 empth_init((char **)&player, flags);
330 empth_create(PP_ACCEPT, player_accept, (50 * 1024), flags,
331 "AcceptPlayers", "Accept network connections", 0);
332 empth_create(PP_KILLIDLE, player_kill_idle, (50 * 1024), flags,
333 "KillIdle", "Kills idle player connections", 0);
334 empth_create(PP_SCHED, update_sched, (50 * 1024), flags, "UpdateSched",
335 "Schedules updates to occur", 0);
336 empth_create(PP_TIMESTAMP, delete_lostitems, (50 * 1024), flags,
337 "DeleteItems", "Deletes old lost items", 0);
338 if (opt_MOB_ACCESS) {
339 /* Start the mobility access check thread */
340 empth_create(PP_TIMESTAMP, mobility_check, (50 * 1024), flags,
341 "MobilityCheck", "Writes the timestamp file", 0);
345 empth_create(PP_TIMESTAMP, market_update, (50 * 1024), flags,
346 "MarketUpdate", "Updates the market", 0);
354 failed |= !ef_open(EF_NATION, O_RDWR, EFF_MEM);
355 failed |= !ef_open(EF_SECTOR, O_RDWR, EFF_MEM);
356 failed |= !ef_open(EF_SHIP, O_RDWR, EFF_MEM);
357 failed |= !ef_open(EF_PLANE, O_RDWR, EFF_MEM);
358 failed |= !ef_open(EF_LAND, O_RDWR, EFF_MEM);
359 failed |= !ef_open(EF_NEWS, O_RDWR, 0);
360 failed |= !ef_open(EF_LOAN, O_RDWR, 0);
361 failed |= !ef_open(EF_TREATY, O_RDWR, 0);
362 failed |= !ef_open(EF_NUKE, O_RDWR, EFF_MEM);
363 failed |= !ef_open(EF_POWER, O_RDWR, 0);
364 failed |= !ef_open(EF_TRADE, O_RDWR, 0);
365 failed |= !ef_open(EF_MAP, O_RDWR, EFF_MEM);
366 failed |= !ef_open(EF_BMAP, O_RDWR, EFF_MEM);
367 failed |= !ef_open(EF_COMM, O_RDWR, 0);
368 failed |= !ef_open(EF_LOST, O_RDWR, 0);
370 logerror("Missing files, giving up");
395 /* we're going down. try to close the files at least */
401 struct sigaction act;
404 sigemptyset(&act.sa_mask);
405 act.sa_handler = SIG_DFL;
406 sigaction(SIGBUS, &act, NULL);
407 sigaction(SIGSEGV, &act, NULL);
408 sigaction(SIGILL, &act, NULL);
409 sigaction(SIGFPE, &act, NULL);
411 signal(SIGBUS, SIG_DFL);
412 signal(SIGSEGV, SIG_DFL);
413 signal(SIGILL, SIG_DFL);
414 signal(SIGFPE, SIG_DFL);
415 #endif /* POSIXSIGNALS */
416 logerror("server received fatal signal %d", sig);
419 if (CANT_HAPPEN(sig != SIGBUS && sig != SIGSEGV
420 && sig != SIGILL && sig != SIGFPE))
433 #if defined(__linux__) && defined(_EMPTH_POSIX)
434 /* This is a hack to get around the way pthreads work on Linux. This
435 may be useful on other platforms too where threads are turned into
437 if (getpid() != mainpid) {
441 if (me && me->name) {
442 if (strlen(me->name) > 5) {
443 /* Player threads are cleaned up below, so just have
444 them return. This should work. */
445 if (!strncmp("Player", me->name, 6)) {
450 /* Not a player thread - must be server thread, so exit */
456 logerror("Shutdown commencing (cleaning up threads.)");
458 for (p = player_next(0); p != 0; p = player_next(p)) {
459 if (p->state != PS_PLAYING)
461 pr_flash(p, "Server shutting down...\n");
462 p->state = PS_SHUTDOWN;
465 pr_flash(p, "Shutdown aborting command\n");
467 empth_wakeup(p->proc);
471 /* Sleep and let some cleanup happen - note this doesn't work
472 when called from a signal handler, since we may or may not
473 be in the right thread. So we just pass by and kill 'em
476 empth_sleep(now + 1);
479 for (p = player_next(0); p != 0; p = player_next(p)) {
482 empth_terminate(p->proc);
483 p = player_delete(p);
486 logerror("Server shutting down on signal %d", sig);
488 logerror("Server shutting down at Deity's request");
495 nullify_objects(void)
500 dchr[SCT_CAPIT] = bigcity_dchr;
502 dchr[SCT_LIGHT].d_cost = -1;
504 dchr[SCT_HEAVY].d_cost = -1;
506 dchr[SCT_OIL].d_cost = -1;
507 dchr[SCT_REFINE].d_cost = -1;
509 for (i = 0; i < pln_maxno; i++) {
515 plchr[i].pl_fuel = 0;
517 for (i = 0; i < lnd_maxno; i++) {
522 /* Fix up the military values */
523 lchr[i].l_mil = lchr[i].l_item[I_MILIT];
525 for (i = 0; i < shp_maxno; i++) {
531 if (mchr[i].m_flags & M_OIL)
535 for (i = 0; i < nuk_maxno; i++) {
541 for (i = 0; i <= SCT_MAXDEF; i++) {
547 for (i = 0; i < prd_maxno; i++) {
548 for (j = 0; j < MAXPRCON; j++) {
549 if (opt_NO_HCMS && pchr[i].p_ctype[j] == I_HCM)
550 pchr[i].p_camt[j] = 0;
551 if (opt_NO_LCMS && pchr[i].p_ctype[j] == I_LCM)
552 pchr[i].p_camt[j] = 0;
553 if (opt_NO_OIL && pchr[i].p_ctype[j] == I_OIL)
554 pchr[i].p_camt[j] = 0;
564 WORD wVersionRequested;
567 wVersionRequested = MAKEWORD(2, 0);
568 rc = WSAStartup(wVersionRequested, &wsaData);
570 logerror("WSAStartup failed. %d", rc);