X-Git-Url: http://git.pond.sub.org/?p=empserver;a=blobdiff_plain;f=src%2Fserver%2Fmain.c;h=52c4c8cc3fb2eb72494b8cf155e96979aaf9683c;hp=a479d4c55b01a0c9b2ce5e381b6171d156189a95;hb=9102ecce5;hpb=e23d8a8fac62c326e6591479f354710c1d78dc9a
diff --git a/src/server/main.c b/src/server/main.c
index a479d4c55..52c4c8cc3 100644
--- a/src/server/main.c
+++ b/src/server/main.c
@@ -1,11 +1,11 @@
/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2013, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
@@ -14,92 +14,112 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see .
*
* ---
*
- * 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, 2005-2012
*/
-#include
-#if !defined(_WIN32)
-#include
-#endif
+#include
+
#include
+#include
#include
-#include
+#ifndef _WIN32
+#include
+#endif
+#include
#if defined(_WIN32)
-#define WIN32
-#include
-#undef NS_ALL
#include
-#include "../lib/gen/getopt.h"
#include "service.h"
-#include "direct.h"
+#include "sys/socket.h"
#endif
-#include "misc.h"
-#include "nat.h"
-#include "file.h"
-#include "player.h"
+#include "chance.h"
+#include "empio.h"
#include "empthread.h"
+#include "file.h"
+#include "journal.h"
+#include "match.h"
+#include "misc.h"
+#include "optlist.h"
#include "plane.h"
-#include "nuke.h"
-#include "land.h"
-#include "ship.h"
-#include "sect.h"
+#include "player.h"
#include "product.h"
-#include "optlist.h"
+#include "prototypes.h"
+#include "sect.h"
#include "server.h"
#include "version.h"
-#include "prototypes.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 init_server(unsigned, int);
static void create_pidfile(char *, pid_t);
#if defined(_WIN32)
static void loc_NTInit(void);
-static void loc_NTTerm(void);
#endif
+/*
+ * Lock to synchronize player threads with update.
+ * Update holds it exclusive, commands hold it shared.
+ */
+empth_rwlock_t *update_lock;
+/*
+ * Lock to synchronize player threads with shutdown.
+ * Shutdown holds it exclusive, player threads in state PS_PLAYING
+ * hold it shared.
+ */
+empth_rwlock_t *shutdown_lock;
+
static char pidfname[] = "server.pid";
/* Run as daemon? If yes, detach from controlling terminal etc. */
-int daemonize = 1;
+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"
- " -h display this help and exit\n"
+ " -E ACTION what to do on oops: abort, crash-dump, nothing (default)\n"
#ifdef _WIN32
" -i install service `%s'\n"
" -I NAME install service NAME\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"
+ " -h display this help and exit\n"
" -v display version information and exit\n",
program_name, dflt_econfig
#ifdef _WIN32
@@ -111,6 +131,8 @@ print_usage(char *program_name)
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;
@@ -119,82 +141,95 @@ main(int argc, char **argv)
int remove_service_set = 0;
#endif
char *config_file = NULL;
- int op;
+ int force_bad_state = 0;
+ int op, idx, sig;
+ unsigned seed = 0;
+ int seed_set = 0;
+
+ 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:FhpsR: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;
+ case 'F':
+ force_bad_state = 1;
+ break;
#if defined(_WIN32)
case 'I':
service_name = optarg;
- /*
- * fall out
- */
+ /* fall through */
case 'i':
install_service_set++;
break;
- case 'R':
+ case 'U':
service_name = optarg;
- /*
- * fall out
- */
- case 'r':
+ /* fall through */
+ case 'u':
remove_service_set++;
break;
-#endif
+#endif /* _WIN32 */
case 's':
flags |= EMPTH_STACKCHECK;
break;
+ case 'R':
+ seed = strtoul(optarg, NULL, 10);
+ seed_set = 1;
+ break;
case 'v':
- printf("Wolfpack Empire %d.%d.%d\n",
- EMP_VERS_MAJOR, EMP_VERS_MINOR, EMP_VERS_PATCH);
+ printf("%s\n\n%s", version, legal);
return EXIT_SUCCESS;
case 'h':
print_usage(argv[0]);
return EXIT_SUCCESS;
default:
- fprintf(stderr, "Try -h for help.\n");
+ help(argv[0], NULL);
return EXIT_FAILURE;
}
}
+ /* silently ignore operands for backward compatibility */
+
#if defined(_WIN32)
- if ((debug || flags || config_file != NULL) &&
- remove_service_set) {
+ 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) {
- fprintf(stderr, "Can't use -d, -p or -s with either "
- "-i or -I options\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\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);
+ return remove_service(service_name);
if (install_service_set) {
program_name = _fullpath(NULL, argv[0], 0);
if (config_file != NULL)
@@ -202,10 +237,17 @@ main(int argc, char **argv)
}
#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);
}
@@ -214,11 +256,16 @@ main(int argc, char **argv)
return install_service(program_name, service_name, config_file);
#endif /* _WIN32 */
- init_server();
+ if (!seed_set)
+ seed = pick_seed();
+ init_server(seed, force_bad_state);
#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 {
@@ -227,7 +274,8 @@ main(int argc, char **argv)
* 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);
}
@@ -238,45 +286,86 @@ main(int argc, char **argv)
if (daemonize) {
if (disassoc() < 0) {
logerror("Can't become daemon (%s)", strerror(errno));
- _exit(1);
+ exit(1);
}
}
#endif /* !_WIN32 */
start_server(flags);
- empth_exit();
+ 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;
+ }
- 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)
+static void
+init_server(unsigned seed, int force_bad_state)
{
- srandom(time(NULL));
+ seed_prng(seed);
#if defined(_WIN32)
loc_NTInit();
#endif
- update_policy_check();
- nullify_objects();
- global_init();
- shutdown_init();
player_init();
- ef_init_srv();
- init_files();
+ ef_init_srv(force_bad_state);
io_init();
init_nreport();
- if (opt_MOB_ACCESS) {
- /* This fixes up mobility upon restart */
- mobility_init();
- }
-
+ if (journal_startup() < 0)
+ exit(1);
+ journal_prng(seed);
loginit("server");
}
@@ -287,51 +376,22 @@ void
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_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);
- }
+ update_lock = empth_rwlock_create("Update");
+ shutdown_lock = empth_rwlock_create("Shutdown");
+ if (!update_lock || !shutdown_lock)
+ exit_nomem();
- if (opt_MARKET) {
- empth_create(PP_TIMESTAMP, market_update, (50 * 1024), flags,
- "MarketUpdate", "Updates the market", 0);
- }
+ market_init();
+ update_init();
+ empth_create(player_accept, 50 * 1024, flags, "AcceptPlayers", NULL);
}
/*
@@ -340,10 +400,8 @@ start_server(int flags)
void
finish_server(void)
{
- close_files();
-#if defined(_WIN32)
- loc_NTTerm();
-#endif
+ ef_fin_srv();
+ journal_shutdown();
remove(pidfname);
}
@@ -359,111 +417,39 @@ create_pidfile(char *fname, pid_t pid)
}
}
-static void
-init_files(void)
-{
- int failed = 0;
- failed |= !ef_open(EF_NATION, EFF_MEM);
- failed |= !ef_open(EF_SECTOR, EFF_MEM);
- failed |= !ef_open(EF_SHIP, EFF_MEM);
- failed |= !ef_open(EF_PLANE, EFF_MEM);
- failed |= !ef_open(EF_LAND, EFF_MEM);
- failed |= !ef_open(EF_NEWS, 0);
- failed |= !ef_open(EF_LOAN, 0);
- failed |= !ef_open(EF_TREATY, 0);
- failed |= !ef_open(EF_NUKE, EFF_MEM);
- failed |= !ef_open(EF_POWER, 0);
- failed |= !ef_open(EF_TRADE, 0);
- failed |= !ef_open(EF_MAP, EFF_MEM);
- failed |= !ef_open(EF_BMAP, EFF_MEM);
- failed |= !ef_open(EF_COMM, 0);
- failed |= !ef_open(EF_LOST, 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;
+ time_t now = time(NULL);
+ int i;
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->aborted++;
+ io_set_eof(p->iop);
+ p->aborted = 1;
+ p->may_sleep = PLAYER_SLEEP_NEVER;
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);
- }
+ empth_rwlock_wrlock(shutdown_lock);
+ empth_yield();
- 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);
+ for (i = 1; i <= 3 && player_next(NULL); i++) {
+ logerror("Waiting for player threads to terminate\n");
+ empth_sleep(now + i);
}
+
+ for (p = player_next(NULL); p; p = player_next(p))
+ logerror("Player %d lingers, output might be lost", p->cnum);
+
if (sig)
logerror("Server shutting down on signal %d", sig);
else
@@ -471,82 +457,10 @@ shutdwn(int sig)
finish_server();
#if defined(_WIN32)
- if (daemonize) {
- stop_service();
- return;
- }
+ if (daemonize)
+ stop_service();
#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 < plchr[i].pl_name; 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 < lchr[i].l_name; 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 < mchr[i].m_name; i++) {
- if (opt_NO_HCMS)
- mchr[i].m_hcm = 0;
- if (opt_NO_LCMS)
- mchr[i].m_lcm = 0;
- if (opt_NO_OIL)
- mchr[i].m_flags &= ~M_OIL;
- }
- for (i = 0; nchr[i].n_name; 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; pchr[i].p_name; 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;
- }
- }
- for (i = 0; intrchr[i].in_name; i++) {
- if (opt_NO_HCMS)
- intrchr[i].in_hcms = 0;
- if (opt_NO_LCMS)
- intrchr[i].in_lcms = 0;
- }
+ exit(0);
}
#if defined(_WIN32)
@@ -554,20 +468,11 @@ static void
loc_NTInit(void)
{
int rc;
- WORD wVersionRequested;
- WSADATA wsaData;
- wVersionRequested = MAKEWORD(2, 0);
- rc = WSAStartup(wVersionRequested, &wsaData);
+ rc = w32_socket_init();
if (rc != 0) {
- logerror("WSAStartup failed. %d", rc);
- _exit(1);
+ logerror("WSAStartup Failed, error code %d\n", rc);
+ exit(1);
}
}
-
-static void
-loc_NTTerm(void)
-{
- WSACleanup();
-}
#endif