/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2004, 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
*
* ---
*
- * 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.
*
* ---
*
- * main.c: Thread and signal initialization for Empire Server
- *
+ * 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, 2004-2009
+ * Markus Armbruster, 2005-2008
*/
-#include <signal.h>
-#if !defined(_WIN32)
-#include <sys/ioctl.h>
-#endif
+#include <config.h>
+
#include <errno.h>
-#include <fcntl.h>
+#include <signal.h>
#include <stdio.h>
-#include <string.h>
+#ifndef _WIN32
+#include <sys/wait.h>
+#endif
+#include <unistd.h>
#if defined(_WIN32)
#include <winsock2.h>
#undef NS_ALL
#include <process.h>
-#include "../lib/gen/getopt.h"
#include "service.h"
-#include "direct.h"
#endif
+#include "empio.h"
+#include "empthread.h"
+#include "file.h"
+#include "journal.h"
+#include "land.h"
+#include "match.h"
#include "misc.h"
#include "nat.h"
-#include "file.h"
-#include "player.h"
-#include "empthread.h"
-#include "plane.h"
#include "nuke.h"
-#include "land.h"
-#include "ship.h"
-#include "sect.h"
-#include "product.h"
#include "optlist.h"
-#include "server.h"
+#include "plane.h"
+#include "player.h"
+#include "product.h"
#include "prototypes.h"
+#include "sect.h"
+#include "server.h"
+#include "ship.h"
+#include "version.h"
-static void nullify_objects(void);
-static void init_files(void);
-static void close_files(void);
+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";
-/* Debugging? If yes call abort() on internal error. */
-int debug = 0;
/* Run as daemon? If yes, detach from controlling terminal etc. */
-int daemonize = 1;
+static int daemonize = 1;
static void
-print_usage(char *program_name)
+help(char *program_name, char *complaint)
{
-#if defined(_WIN32)
- printf("Usage: %s -i -I service_name -r -R service_name -D datadir -e config_file -d -p\n",
- program_name);
- printf("-i install service with the default name %s\n", DEFAULT_SERVICE_NAME);
- printf("-r remove service with the default name %s\n", DEFAULT_SERVICE_NAME);
+ if (complaint)
+ fprintf(stderr, "%s: %s\n", program_name, complaint);
+ fprintf(stderr, "Try -h for help.\n");
+}
-#else
- printf("Usage: %s -D datadir -e config_file -d -p -s\n", program_name);
- printf("-s stack check flag (include print flag)\n");
+static void
+print_usage(char *program_name)
+{
+ printf("Usage: %s [OPTION]...\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"
+ " -I NAME install service NAME\n"
+#endif
+ " -p threading debug mode, implies -d\n"
+#ifdef _WIN32
+ " -u uninstall service `%s'\n"
+ " -U NAME uninstall service NAME\n"
#endif
- printf("-p print flag\n");
- printf("-d debug mode\n");
+ " -s enable stack checking\n"
+ " -R RANDOM-SEED random seed\n"
+ " -v display version information and exit\n",
+ program_name, dflt_econfig
+#ifdef _WIN32
+ , DEFAULT_SERVICE_NAME, DEFAULT_SERVICE_NAME
+#endif
+ );
}
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;
+ char *program_name = NULL;
char *service_name = NULL;
int remove_service_set = 0;
- int datadir_set = 0;
#endif
char *config_file = NULL;
- int op;
+ int op, idx, sig;
+ unsigned seed = time(NULL);
-#if defined(_WIN32)
- while ((op = getopt(argc, argv, "D:de:iI:rR:hp")) != EOF) {
+ oops_handler = ignore;
+
+#ifdef _WIN32
+# define XOPTS "iI:uU:"
#else
- while ((op = getopt(argc, argv, "D:de:psh")) != EOF) {
+# define XOPTS
#endif
+ while ((op = getopt(argc, argv, "de:E:hpsR:v" XOPTS)) != EOF) {
switch (op) {
- case 'D':
- datadir = optarg;
-#if defined(_WIN32)
- datadir_set++;
-#endif
- break;
+ case 'p':
+ flags |= EMPTH_PRINT;
+ /* fall through */
case 'd':
- debug++;
+ oops_handler = abort;
daemonize = 0;
break;
case 'e':
config_file = optarg;
break;
- case 'p':
- flags |= EMPTH_PRINT;
- daemonize = 0;
+ 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;
- /*
- * fall out
- */
+ /* fall through */
case 'i':
install_service_set++;
break;
- break;
- case 'R':
+ case 'U':
service_name = optarg;
- /*
- * fall out
- */
- case 'r':
+ /* fall through */
+ case 'u':
remove_service_set++;
break;
-#else
+#endif /* _WIN32 */
case 's':
- flags |= EMPTH_PRINT | EMPTH_STACKCHECK;
- daemonize = 0;
+ flags |= EMPTH_STACKCHECK;
break;
-#endif
+ case 'R':
+ seed = strtoul(optarg, NULL, 10);
+ break;
+ case 'v':
+ printf("%s\n\n%s", version, legal);
+ return EXIT_SUCCESS;
case 'h':
- default:
print_usage(argv[0]);
+ return EXIT_SUCCESS;
+ default:
+ help(argv[0], NULL);
return EXIT_FAILURE;
}
}
#if defined(_WIN32)
- if ((debug || datadir_set || config_file != NULL) &&
+ if ((!daemonize || flags || config_file != NULL) &&
remove_service_set) {
- fprintf(stderr, "Can't use -d, -D or -e with either "
- "-r or -R options when starting the server\n");
+ fprintf(stderr, "Can't use -p, -s, -d or -e with either "
+ "-u or -U options\n");
exit(EXIT_FAILURE);
}
- if (debug && install_service_set) {
- fprintf(stderr, "Can't use -d with either "
- "-i or -I options when starting the server\n");
+ 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 options when starting "
- "the server\n");
+ fprintf(stderr, "Can't use both -u or -U and -i or -I "
+ "options\n");
exit(EXIT_FAILURE);
}
-#endif /* _WIN32 */
-
-#if defined(_WIN32)
if (remove_service_set)
return remove_service(service_name);
+ if (install_service_set) {
+ program_name = _fullpath(NULL, argv[0], 0);
+ if (config_file != NULL)
+ config_file = _fullpath(NULL, config_file, 0);
+ }
#endif /* _WIN32 */
+ empfile_init();
if (emp_config(config_file) < 0)
exit(EXIT_FAILURE);
- if (chdir(datadir)) {
- fprintf(stderr, "Can't chdir to %s (%s)\n", datadir, strerror(errno));
+ empfile_fixup();
+ if (read_builtin_tables() < 0)
+ exit(EXIT_FAILURE);
+ if (read_custom_tables() < 0)
+ exit(EXIT_FAILURE);
+ if (chdir(gamedir)) {
+ fprintf(stderr, "Can't chdir to %s (%s)\n",
+ gamedir, strerror(errno));
exit(EXIT_FAILURE);
}
#if defined(_WIN32)
if (install_service_set)
- return install_service(argv[0], service_name, datadir_set, config_file);
+ return install_service(program_name, service_name, config_file);
#endif /* _WIN32 */
- init_server();
+ init_server(seed);
#if defined(_WIN32)
if (daemonize != 0) {
- SERVICE_TABLE_ENTRY DispatchTable[]={{"Empire Server", service_main},{NULL, NULL}};
+ SERVICE_TABLE_ENTRY DispatchTable[]={
+ {"Empire Server", service_main},
+ {NULL, NULL}
+ };
if (StartServiceCtrlDispatcher(DispatchTable))
return 0;
else {
* start server in the foreground
*/
if (GetLastError() != ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
- logerror("Failed to dispatch service (%d)", GetLastError());
+ logerror("Failed to dispatch service (%lu)",
+ GetLastError());
finish_server();
exit(EXIT_FAILURE);
}
}
daemonize = 0;
#else /* !_WIN32 */
- if (daemonize)
- disassoc();
+ if (daemonize) {
+ if (disassoc() < 0) {
+ logerror("Can't become daemon (%s)", strerror(errno));
+ exit(1);
+ }
+ }
#endif /* !_WIN32 */
start_server(flags);
+ journal_prng(seed);
+
+ for (;;) {
+ sig = empth_wait_for_signal();
+#ifdef SIGHUP
+ if (sig == SIGHUP) {
+ /* if you make changes here, also update relo() */
+ journal_reopen();
+ update_reschedule();
+ logreopen();
+ continue;
+ }
+#endif
+ break;
+ }
- empth_exit();
-
- CANT_HAPPEN("main thread terminated");
+ shutdwn(sig);
+ CANT_REACH();
finish_server();
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();
- nullify_objects();
- global_init();
- shutdown_init();
player_init();
- ef_init();
- init_files();
+ ef_init_srv();
io_init();
init_nreport();
- if (opt_MOB_ACCESS) {
- /* This fixes up mobility upon restart */
- mobility_init();
- }
-
loginit("server");
}
start_server(int flags)
{
pid_t pid;
-#if !defined(_WIN32)
- struct sigaction act;
-#endif
pid = getpid();
create_pidfile(pidfname, pid);
logerror("------------------------------------------------------");
logerror("Empire server (pid %d) started", (int)pid);
-#if !defined(_WIN32)
- /* signal() should not be used with mit pthreads. Anyway if u
- have a posix threads u definitly have posix signals -- Sasha */
- sigemptyset(&act.sa_mask);
- act.sa_handler = shutdwn;
- sigaction(SIGTERM, &act, NULL);
- sigaction(SIGINT, &act, NULL);
- act.sa_handler = panic;
- sigaction(SIGBUS, &act, NULL);
- sigaction(SIGSEGV, &act, NULL);
- sigaction(SIGILL, &act, NULL);
- sigaction(SIGFPE, &act, NULL);
- act.sa_handler = SIG_IGN;
- sigaction(SIGPIPE, &act, NULL);
-#endif /* !_WIN32 */
+ empth_init((void **)&player, flags);
- empth_init((char **)&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_SCHED, update_sched, (50 * 1024), flags, "UpdateSched",
- "Schedules updates to occur", 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);
- if (opt_MARKET) {
- empth_create(PP_TIMESTAMP, market_update, (50 * 1024), flags,
- "MarketUpdate", "Updates the market", 0);
- }
+ empth_create(player_accept, 50 * 1024, flags, "AcceptPlayers", NULL);
+
+ market_init();
+ update_init();
}
/*
void
finish_server(void)
{
- close_files();
+ ef_fin_srv();
#if defined(_WIN32)
loc_NTTerm();
#endif
+ journal_shutdown();
remove(pidfname);
}
{
FILE *pidf = fopen(fname, "w");
if (!pidf
- || fprintf(pidf, "%d\n", pid) < 0
+ || fprintf(pidf, "%d\n", (int)pid) < 0
|| fclose(pidf)) {
logerror("Can't write PID file (%s)", strerror(errno));
exit(1);
}
}
-static void
-init_files(void)
-{
- int failed = 0;
- failed |= !ef_open(EF_NATION, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_SECTOR, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_SHIP, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_PLANE, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_LAND, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_NEWS, O_RDWR, 0);
- failed |= !ef_open(EF_LOAN, O_RDWR, 0);
- failed |= !ef_open(EF_TREATY, O_RDWR, 0);
- failed |= !ef_open(EF_NUKE, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_POWER, O_RDWR, 0);
- failed |= !ef_open(EF_TRADE, O_RDWR, 0);
- failed |= !ef_open(EF_MAP, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_BMAP, O_RDWR, EFF_MEM);
- failed |= !ef_open(EF_COMM, O_RDWR, 0);
- failed |= !ef_open(EF_LOST, O_RDWR, 0);
- if (failed) {
- logerror("Missing files, giving up");
- exit(EXIT_FAILURE);
- }
-}
-
-static void
-close_files(void)
-{
- ef_close(EF_NATION);
- ef_close(EF_SECTOR);
- ef_close(EF_SHIP);
- ef_close(EF_PLANE);
- ef_close(EF_LAND);
- ef_close(EF_NEWS);
- ef_close(EF_LOAN);
- ef_close(EF_TREATY);
- ef_close(EF_NUKE);
- ef_close(EF_POWER);
- ef_close(EF_TRADE);
- ef_close(EF_MAP);
- ef_close(EF_COMM);
- ef_close(EF_BMAP);
- ef_close(EF_LOST);
-}
-
-/* we're going down. try to close the files at least */
-#if !defined(_WIN32)
-void
-panic(int sig)
-{
- struct sigaction act;
-
- act.sa_flags = 0;
- sigemptyset(&act.sa_mask);
- act.sa_handler = SIG_DFL;
- sigaction(SIGBUS, &act, NULL);
- sigaction(SIGSEGV, &act, NULL);
- sigaction(SIGILL, &act, NULL);
- sigaction(SIGFPE, &act, NULL);
- logerror("server received fatal signal %d", sig);
- log_last_commands();
- close_files();
- if (CANT_HAPPEN(sig != SIGBUS && sig != SIGSEGV
- && sig != SIGILL && sig != SIGFPE))
- _exit(1);
- if (raise(sig))
- _exit(1);
-}
-#endif /* _WIN32 */
-
void
shutdwn(int sig)
{
struct player *p;
- time_t now;
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);
}
-
- if (!sig) {
- /* Sleep and let some cleanup happen - note this doesn't work
- when called from a signal handler, since we may or may not
- be in the right thread. So we just pass by and kill 'em
- all. */
- time(&now);
- empth_sleep(now + 1);
- }
-
- for (p = player_next(0); p != 0; p = player_next(p)) {
- p->state = PS_KILL;
- p->aborted++;
- empth_terminate(p->proc);
- p = player_delete(p);
- }
+ empth_rwlock_wrlock(play_lock);
if (sig)
logerror("Server shutting down on signal %d", sig);
else
finish_server();
#if defined(_WIN32)
- if (daemonize) {
+ if (daemonize)
stop_service();
- return;
- }
#endif
- _exit(0);
-}
-
-
-static void
-nullify_objects(void)
-{
- int i, j;
-
- if (opt_BIG_CITY)
- dchr[SCT_CAPIT] = bigcity_dchr;
- if (opt_NO_LCMS)
- dchr[SCT_LIGHT].d_cost = -1;
- if (opt_NO_HCMS)
- dchr[SCT_HEAVY].d_cost = -1;
- if (opt_NO_OIL) {
- dchr[SCT_OIL].d_cost = -1;
- dchr[SCT_REFINE].d_cost = -1;
- }
- for (i = 0; i < pln_maxno; i++) {
- if (opt_NO_HCMS)
- plchr[i].pl_hcm = 0;
- if (opt_NO_LCMS)
- plchr[i].pl_lcm = 0;
- if (opt_NO_OIL)
- plchr[i].pl_fuel = 0;
- }
- for (i = 0; i < lnd_maxno; i++) {
- if (opt_NO_HCMS)
- lchr[i].l_hcm = 0;
- if (opt_NO_LCMS)
- lchr[i].l_lcm = 0;
- /* Fix up the military values */
- lchr[i].l_mil = lchr[i].l_item[I_MILIT];
- }
- for (i = 0; i < shp_maxno; i++) {
- if (opt_NO_HCMS)
- mchr[i].m_hcm = 0;
- if (opt_NO_LCMS)
- mchr[i].m_lcm = 0;
- if (opt_NO_OIL) {
- if (mchr[i].m_flags & M_OIL)
- mchr[i].m_name = 0;
- }
- }
- for (i = 0; i < nuk_maxno; i++) {
- if (opt_NO_HCMS)
- nchr[i].n_hcm = 0;
- if (opt_NO_LCMS)
- nchr[i].n_lcm = 0;
- }
- for (i = 0; i <= SCT_MAXDEF; i++) {
- if (opt_NO_HCMS)
- dchr[i].d_hcms = 0;
- if (opt_NO_LCMS)
- dchr[i].d_lcms = 0;
- }
- for (i = 0; i < prd_maxno; i++) {
- for (j = 0; j < MAXPRCON; j++) {
- if (opt_NO_HCMS && pchr[i].p_ctype[j] == I_HCM)
- pchr[i].p_camt[j] = 0;
- if (opt_NO_LCMS && pchr[i].p_ctype[j] == I_LCM)
- pchr[i].p_camt[j] = 0;
- if (opt_NO_OIL && pchr[i].p_ctype[j] == I_OIL)
- pchr[i].p_camt[j] = 0;
- }
- }
+ exit(0);
}
#if defined(_WIN32)
rc = WSAStartup(wVersionRequested, &wsaData);
if (rc != 0) {
logerror("WSAStartup failed. %d", rc);
- _exit(1);
+ exit(1);
}
}
projects / empserver / blobdiff