X-Git-Url: https://code.citadel.org/?p=citadel.git;a=blobdiff_plain;f=citadel%2Fserver_main.c;h=68af7888e9ef221011eb88f6d523d2736d6a6ac6;hp=c46c0857a2375fa55bd52064429cfe09f8ea4573;hb=6d051cee6f669b6ecd950e933a95644f3cf097ea;hpb=dff1f2c563c6c998431eb687039096a4060dff32

diff --git a/citadel/server_main.c b/citadel/server_main.c
index c46c0857a..68af7888e 100644
--- a/citadel/server_main.c
+++ b/citadel/server_main.c
@@ -1,78 +1,67 @@
 /*
  * citserver's main() function lives here.
+ * 
+ * Copyright (c) 1987-2020 by the citadel.org team
  *
- * $Id$
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
-
-#include "sysdep.h"
 #include <stdlib.h>
 #include <unistd.h>
 #include <stdio.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <signal.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/socket.h>
-#include <syslog.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
-#endif
-
-#include <limits.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <sys/un.h>
-#include <string.h>
-#include <pwd.h>
-#include <errno.h>
-#include <stdarg.h>
 #include <grp.h>
-#include <pwd.h>
-#ifdef HAVE_PTHREAD_H
-#include <pthread.h>
-#endif
-#ifdef HAVE_SYS_PRCTL_H
-#include <sys/prctl.h>
-#endif
+#include <sys/file.h>
 #include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "serv_extensions.h"
-#include "sysdep_decls.h"
+
 #include "citserver.h"
-#include "support.h"
+#include "svn_revision.h"
+#include "modules_init.h"
 #include "config.h"
 #include "control.h"
-#include "database.h"
+#include "serv_extensions.h"
+#include "citadel_dirs.h"
 #include "user_ops.h"
-#include "housekeeping.h"
-#include "citadel_dirs.c"
-
-#include "modules_init.h"
-#include "ecrash.h"
 
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
+uid_t ctdluid = 0;
 const char *CitadelServiceUDS="citadel-UDS";
 const char *CitadelServiceTCP="citadel-TCP";
+int sanity_diag_mode = 0;
 
 
-void go_threading(void);
+/*
+ * Create or remove a lock file, so we only have one Citadel Server running at a time.
+ */
+void ctdl_lockfile(int yo) {
+	static char lockfilename[PATH_MAX];
+	static FILE *fp;
+
+	if (yo) {
+		syslog(LOG_DEBUG, "main: creating lockfile");
+		snprintf(lockfilename, sizeof lockfilename, "%s/citadel.lock", ctdl_run_dir);
+		fp = fopen(lockfilename, "w");
+		if (!fp) {
+			syslog(LOG_ERR, "%s: %m", lockfilename);
+			exit(CTDLEXIT_DB);
+		}
+		if (flock(fileno(fp), (LOCK_EX|LOCK_NB)) != 0) {
+			syslog(LOG_ERR, "main: cannot lock %s , is another citserver running?", lockfilename);
+			exit(CTDLEXIT_DB);
+		}
+		return;
+	}
+
+	syslog(LOG_DEBUG, "main: removing lockfile");
+	unlink(lockfilename);
+	flock(fileno(fp), LOCK_UN);
+	fclose(fp);
+}
 
 
 /*
@@ -80,94 +69,138 @@ void go_threading(void);
  */
 int main(int argc, char **argv)
 {
+	size_t basesize = 64;
 	char facility[32];
 	int a;			/* General-purpose variables */
 	struct passwd pw, *pwp = NULL;
 	char pwbuf[SIZ];
 	int drop_root_perms = 1;
-	size_t size;
 	int relh=0;
 	int home=0;
 	int dbg=0;
+	int max_log_level = LOG_INFO;
 	char relhome[PATH_MAX]="";
 	char ctdldir[PATH_MAX]=CTDLDIR;
+	int syslog_facility = LOG_DAEMON;
+	uid_t u = 0;
+	struct passwd *p = NULL;
 #ifdef HAVE_RUN_DIR
 	struct stat filestats;
 #endif
-#ifdef HAVE_BACKTRACE
-	eCrashParameters params;
-//	eCrashSymbolTable symbol_table;
-#endif
-	/* initialise semaphores here. Patch by Matt and davew
-	 * its called here as they are needed by CtdlLogPrintf for thread safety
-	 */
-	CtdlInitBase64Table();
-	InitialiseSemaphores();
-	
+
 	/* initialize the master context */
 	InitializeMasterCC();
+	InitializeMasterTSD();
 
 	/* parse command-line arguments */
-	for (a=1; a<argc; ++a) {
+	while ((a=getopt(argc, argv, "l:dh:x:t:B:Dru:s:")) != EOF) switch(a) {
 
-		if (!strncmp(argv[a], "-l", 2)) {
-			safestrncpy(facility, &argv[a][2], sizeof(facility));
+		case 'l':
+			safestrncpy(facility, optarg, sizeof(facility));
 			syslog_facility = SyslogFacility(facility);
-			enable_syslog = 1;
-		}
+			break;
 
 		/* run in the background if -d was specified */
-		else if (!strcmp(argv[a], "-d")) {
+		case 'd':
 			running_as_daemon = 1;
-		}
+			break;
 
-		/* -x specifies the desired logging level */
-		else if (!strncmp(argv[a], "-x", 2)) {
-			verbosity = atoi(&argv[a][2]);
-		}
-
-		else if (!strncmp(argv[a], "-h", 2)) {
-			relh=argv[a][2]!='/';
-			if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
-								   sizeof ctdl_home_directory);
-			else
-				safestrncpy(relhome, &argv[a][2],
-							sizeof relhome);
-			home_specified = 1;
+		case 'h':
+			relh = optarg[0] != '/';
+			if (!relh) {
+				safestrncpy(ctdl_home_directory, optarg, sizeof ctdl_home_directory);
+			}
+			else {
+				safestrncpy(relhome, optarg, sizeof relhome);
+			}
 			home=1;
-		}
+			break;
 
-		else if (!strncmp(argv[a], "-t", 2)) {
-			freopen(&argv[a][2], "w", stderr);
-		}
+		case 'x':
+			max_log_level = atoi(optarg);
+			break;
 
-		else if (!strncmp(argv[a], "-f", 2)) {
-			do_defrag = 1;
-		}
+		case 't':	/* deprecated */
+			break;
+                case 'B': /* Basesize */
+                        basesize = atoi(optarg);
+                        break;
 
-		else if (!strncmp(argv[a], "-D", 2)) {
+		case 'D':
 			dbg = 1;
-		}
+			break;
 
-		/* -r tells the server not to drop root permissions. don't use
-		 * this unless you know what you're doing. this should be
-		 * removed in the next release if it proves unnecessary. */
-		else if (!strcmp(argv[a], "-r"))
+		/* -r tells the server not to drop root permissions.
+		 * Don't use this unless you know what you're doing.
+		 */
+		case 'r':
 			drop_root_perms = 0;
+			break;
 
+		/* -u tells the server what uid to run under... */
+		case 'u':
+			u = atoi(optarg);
+			if (u > 0) {
+				ctdluid = u;
+			}
+			else {
+				p = getpwnam(optarg);
+				if (p) {
+					u = p->pw_uid;
+				}
+			}
+			if (u > 0) {
+				ctdluid = u;
+			}
+			break;
+
+		/* -s tells the server to behave differently during sanity checks */
+		case 's':
+			sanity_diag_mode = atoi(optarg);
+			break;
+
+		default:
 		/* any other parameter makes it crash and burn */
-		else {
-			CtdlLogPrintf(CTDL_EMERG,	"citserver: usage: "
+			fprintf(stderr,	"citserver: usage: "
 					"citserver "
-					"[-lLogFacility] "
-					"[-d] [-f] [-D] "
-					" [-tTraceFile]"
-					" [-xLogLevel] [-hHomeDir]\n");
+					"[-l LogFacility] "
+					"[-x MaxLogLevel] "
+					"[-d] [-D] [-r] "
+					"[-u user] "
+					"[-h HomeDir]\n"
+			);
 			exit(1);
+	}
+
+	/* Last ditch effort to determine the user name ... if there's a user called "citadel" then use that */
+	if (ctdluid == 0) {
+		p = getpwnam("citadel");
+		if (!p) {
+			p = getpwnam("bbs");
 		}
+		if (!p) {
+			p = getpwnam("guest");
+		}
+		if (p) {
+			u = p->pw_uid;
+		}
+		if (u > 0) {
+			ctdluid = u;
+		}
+	}
 
+	if ((ctdluid == 0) && (drop_root_perms == 0)) {
+		fprintf(stderr, "citserver: cannot determine user to run as; please specify -r or -u options\n");
+		exit(CTDLEXIT_UNUSER);
 	}
 
+	StartLibCitadel(basesize);
+	setlogmask(LOG_UPTO(max_log_level));
+	openlog("citserver",
+		( running_as_daemon ? (LOG_PID) : (LOG_PID | LOG_PERROR) ),
+		syslog_facility
+	);
+
 	calc_dirs_n_files(relh, home, relhome, ctdldir, dbg);
 	/* daemonize, if we were asked to */
 	if (running_as_daemon) {
@@ -175,130 +208,116 @@ int main(int argc, char **argv)
 		drop_root_perms = 1;
 	}
 
-#ifdef HAVE_BACKTRACE
-	bzero(&params, sizeof(params));
-	params.filename = file_pid_paniclog;
-	panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
-	params.filep = fopen(file_pid_paniclog, "a+");
-	params.debugLevel = ECRASH_DEBUG_VERBOSE;
-	params.dumpAllThreads = TRUE;
-	params.useBacktraceSymbols = 1;
-///	BuildSymbolTable(&symbol_table);
-//	params.symbolTable = &symbol_table;
-	params.signals[0]=SIGSEGV;
-	params.signals[1]=SIGILL;
-	params.signals[2]=SIGBUS;
-	params.signals[3]=SIGABRT;
-
-	eCrash_Init(&params);
-		
-	eCrash_RegisterThread("MasterThread", 0);
-
-///	signal(SIGSEGV, cit_panic_backtrace);
-#endif
-	/* Initialize the syslogger.  Yes, we are really using 0 as the
-	 * facility, because we are going to bitwise-OR the facility to
-	 * the severity of each message, allowing us to write to other
-	 * facilities when we need to...
-	 */
-	if (enable_syslog) {
-		openlog("citadel", LOG_NDELAY, 0);
-		setlogmask(LOG_UPTO(verbosity));
-	}
-	
 	/* Tell 'em who's in da house */
-	CtdlLogPrintf(CTDL_NOTICE, "\n");
-	CtdlLogPrintf(CTDL_NOTICE, "\n");
-	CtdlLogPrintf(CTDL_NOTICE,
-		"*** Citadel server engine v%d.%02d ***\n",
-		(REV_LEVEL/100), (REV_LEVEL%100));
-	CtdlLogPrintf(CTDL_NOTICE,
-		"Copyright (C) 1987-2007 by the Citadel development team.\n");
-	CtdlLogPrintf(CTDL_NOTICE,
-		"This program is distributed under the terms of the GNU "
-		"General Public License.\n");
-	CtdlLogPrintf(CTDL_NOTICE, "\n");
-	CtdlLogPrintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
-	CtdlLogPrintf(CTDL_INFO, "%s\n", libcitadel_version_string());
-
-	/* Load site-specific parameters, and set the ipgm secret */
-	CtdlLogPrintf(CTDL_INFO, "Loading citadel.config\n");
-	get_config();
-	config.c_ipgm_secret = rand();
-	put_config();
+	syslog(LOG_INFO, " ");
+	syslog(LOG_INFO, " ");
+	syslog(LOG_INFO, "*** Citadel server engine ***\n");
+ 	syslog(LOG_INFO, "Version %d (build %s) ***", REV_LEVEL, svn_revision());
+	syslog(LOG_INFO, "Copyright (C) 1987-2020 by the Citadel development team.");
+	syslog(LOG_INFO, " ");
+	syslog(LOG_INFO, "This program is open source software: you can redistribute it and/or");
+	syslog(LOG_INFO, "modify it under the terms of the GNU General Public License, version 3.");
+	syslog(LOG_INFO, " ");
+	syslog(LOG_INFO, "This program is distributed in the hope that it will be useful,");
+	syslog(LOG_INFO, "but WITHOUT ANY WARRANTY; without even the implied warranty of");
+	syslog(LOG_INFO, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the");
+	syslog(LOG_INFO, "GNU General Public License for more details.");
+	syslog(LOG_INFO, " ");
+	syslog(LOG_INFO, "%s", libcitadel_version_string());
 
 #ifdef HAVE_RUN_DIR
 	/* on some dists rundir gets purged on startup. so we need to recreate it. */
 
-	if (stat(ctdl_run_dir, &filestats)==-1){
+	if (stat(ctdl_run_dir, &filestats) == -1) {
+#ifdef HAVE_GETPWUID_R
 #ifdef SOLARIS_GETPWUID
-		pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
-#else
-		getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
-#endif
-		mkdir(ctdl_run_dir, 0755);
-		chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid);
-	}
-			
+		pwp = getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf));
+#else // SOLARIS_GETPWUID
+		getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
+#endif // SOLARIS_GETPWUID
+#else // HAVE_GETPWUID_R
+		pwp = NULL;
+#endif // HAVE_GETPWUID_R
+
+		if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST)) {
+			syslog(LOG_ERR, "main: unable to create run directory [%s]: %m", ctdl_run_dir);
+		}
 
+		if (chown(ctdl_run_dir, ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0) {
+			syslog(LOG_ERR, "main: unable to set the access rights for [%s]: %m", ctdl_run_dir);
+		}
+	}
 #endif
 
-	/* Initialize... */
-	init_sysdep();
+	ctdl_lockfile(1);
+	init_sysdep();						// Initialize...
+	master_startup();					// Do non system dependent startup functions
+	check_control();					// Check/sanitize/initialize control record, fix user indexes
+	syslog(LOG_INFO, "main: upgrading modules");		// Run any upgrade entry points
+	upgrade_modules();
 
+/*
+ * Load the user for the masterCC or create them if they don't exist
+ */
+	if (CtdlGetUser(&masterCC.user, "SYS_Citadel"))
+	{
+		/* User doesn't exist. We can't use create user here as the user number needs to be 0 */
+		strcpy (masterCC.user.fullname, "SYS_Citadel") ;
+		CtdlPutUser(&masterCC.user);
+		CtdlGetUser(&masterCC.user, "SYS_Citadel"); /* Just to be safe */
+	}
+	
 	/*
-	 * Do non system dependent startup functions.
+	 * Bind the server to a Unix-domain socket (user client access)
 	 */
-	master_startup();
-
-	CtdlLogPrintf(CTDL_INFO, "Acquiring control record\n");
-	get_control();
+	CtdlRegisterServiceHook(0,
+				file_citadel_socket,
+				citproto_begin_session,
+				do_command_loop,
+				do_async_loop,
+				CitadelServiceUDS);
 
 	/*
-	 * Bind the server to a Unix-domain socket.
+	 * Bind the server to a Unix-domain socket (admin client access)
 	 */
 	CtdlRegisterServiceHook(0,
-				file_citadel_socket,
-				citproto_begin_session,
+				file_citadel_admin_socket,
+				citproto_begin_admin_session,
 				do_command_loop,
 				do_async_loop,
 				CitadelServiceUDS);
+	chmod(file_citadel_admin_socket, S_IRWXU);	/* for your eyes only */
 
 	/*
 	 * Bind the server to our favorite TCP port (usually 504).
 	 */
-	CtdlRegisterServiceHook(config.c_port_number,
+	CtdlRegisterServiceHook(CtdlGetConfigInt("c_port_number"),
 				NULL,
 				citproto_begin_session,
 				do_command_loop,
 				do_async_loop,
 				CitadelServiceTCP);
 
-				
-	/*
-	 * Run any upgrade entry points
-	 */
-	CtdlLogPrintf(CTDL_INFO, "Upgrading modules.\n");
-	upgrade_modules();
-	
-	
 	/*
 	 * Load any server-side extensions available here.
 	 */
-	CtdlLogPrintf(CTDL_INFO, "Initializing server extensions\n");
-	size = strlen(ctdl_home_directory) + 9;
+	syslog(LOG_INFO, "main: initializing server extensions");
 	
 	initialise_modules(0);
-	
-	
 
 	/*
 	 * If we need host auth, start our chkpwd daemon.
 	 */
-	if (config.c_auth_mode == 1) {
+	if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
 		start_chkpwd_daemon();
 	}
 
+	/*
+	 * check, whether we're fired up another time after a crash.
+	 * if, post an aide message, so the admin has a chance to react.
+	 */
+	checkcrash();
+
 	/*
 	 * Now that we've bound the sockets, change to the Citadel user id and its
 	 * corresponding group ids
@@ -306,24 +325,26 @@ int main(int argc, char **argv)
 	if (drop_root_perms) {
 		cdb_chmod_data();	/* make sure we own our data files */
 
+#ifdef HAVE_GETPWUID_R
 #ifdef SOLARIS_GETPWUID
-		pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
-#else
-		getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
-#endif
+		pwp = getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf));
+#else // SOLARIS_GETPWUID
+		getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
+#endif // SOLARIS_GETPWUID
+#else // HAVE_GETPWUID_R
+		pwp = NULL;
+#endif // HAVE_GETPWUID_R
+
 		if (pwp == NULL)
-			CtdlLogPrintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
-				   "Group IDs will be incorrect.\n", (long)CTDLUID,
-				strerror(errno));
+			syslog(LOG_ERR, "main: WARNING, getpwuid(%ld): %m Group IDs will be incorrect.", (long)CTDLUID);
 		else {
 			initgroups(pw.pw_name, pw.pw_gid);
 			if (setgid(pw.pw_gid))
-				CtdlLogPrintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
-					strerror(errno));
+				syslog(LOG_ERR, "main: setgid(%ld): %m", (long)pw.pw_gid);
 		}
-		CtdlLogPrintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
+		syslog(LOG_INFO, "main: changing uid to %ld", (long)CTDLUID);
 		if (setuid(CTDLUID) != 0) {
-			CtdlLogPrintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
+			syslog(LOG_ERR, "main: setuid() failed: %m");
 		}
 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
 		prctl(PR_SET_DUMPABLE, 1);
@@ -331,132 +352,14 @@ int main(int argc, char **argv)
 	}
 
 	/* We want to check for idle sessions once per minute */
-	CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
+	CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER, PRIO_CLEANUP + 1);
 
 	go_threading();
 	
-	
-	master_cleanup(exit_signal);
-	return(0);
-}
-
-
-
-void go_threading(void)
-{
-	int i;
-	struct CtdlThreadNode *last_worker;
-	
-	/*
-	 * Initialise the thread system
-	 */
-	ctdl_thread_internal_init();
-	/*
-	 * Now create a bunch of worker threads.
-	 */
-	CtdlLogPrintf(CTDL_DEBUG, "Starting %d worker threads\n", config.c_min_workers);
-	begin_critical_section(S_THREAD_LIST);
-	i=0;	/* Always start at least 1 worker thread */
-	do
-	{
-		ctdl_internal_create_thread("Worker Thread", CTDLTHREAD_BIGSTACK + CTDLTHREAD_WORKER, worker_thread, NULL);
-	} while (++i < config.c_min_workers);
-	end_critical_section(S_THREAD_LIST);
-
-	/* Second call to module init functions now that threading is up */
-	initialise_modules(1);
-
-	/*
-	 * This thread is now used for garbage collection of other threads in the thread list
-	 */
-	CtdlLogPrintf(CTDL_INFO, "Startup thread %d becoming garbage collector,\n", pthread_self());
-
-	/*
-	 * We do a lot of locking and unlocking of the thread list in here.
-	 * We do this so that we can repeatedly release time for other threads
-	 * that may be waiting on the thread list.
-	 * We are a low priority thread so we can afford to do this
-	 */
-	
-	while (CtdlThreadGetCount())
-	{
-		if (exit_signal)
-			CtdlThreadStopAll();
-		check_sched_shutdown();
-		if (CT->state > CTDL_THREAD_STOP_REQ)
-		{
-			begin_critical_section(S_THREAD_LIST);
-			ctdl_thread_internal_calc_loadavg();
-			end_critical_section(S_THREAD_LIST);
-		}
-		
-		/* Reduce the size of the worker thread pool if necessary. */
-		if ((CtdlThreadGetWorkers() > config.c_min_workers) && (CtdlThreadWorkerAvg < 20) && (CT->state > CTDL_THREAD_STOP_REQ))
-		{
-			/* Ask a worker thread to stop as we no longer need it */
-			begin_critical_section(S_THREAD_LIST);
-			last_worker = CtdlThreadList;
-			while (last_worker)
-			{
-				pthread_mutex_lock(&last_worker->ThreadMutex);
-				if (last_worker->flags & CTDLTHREAD_WORKER && last_worker->state > CTDL_THREAD_STOPPING)
-				{
-					pthread_mutex_unlock(&last_worker->ThreadMutex);
-					break;
-				}
-				pthread_mutex_unlock(&last_worker->ThreadMutex);
-				last_worker = last_worker->next;
-			}
-			end_critical_section(S_THREAD_LIST);
-			if (last_worker)
-			{
-#ifdef WITH_THREADLOG
-				CtdlLogPrintf(CTDL_DEBUG, "Thread system, stopping excess worker thread \"%s\" (%ld).\n",
-					last_worker->name,
-					last_worker->tid
-					);
-#endif
-				CtdlThreadStop(last_worker);
-			}
-		}
-	
-		/*
-		 * If all our workers are working hard, start some more to help out
-		 * with things
-		 */
-		/* FIXME: come up with a better way to dynamically alter the number of threads
-		 * based on the system load
-		 */
-//		if ((CtdlThreadGetWorkers() < config.c_max_workers) && (CtdlThreadGetWorkers() < num_sessions))
-		// && (CtdlThreadLoadAvg < 90) )
-		if ((CtdlThreadGetWorkers() < config.c_max_workers) && (CtdlThreadGetWorkerAvg() > 60) && (CtdlThreadGetLoadAvg() < 90) && (CT->state > CTDL_THREAD_STOP_REQ))
-		{
-			for (i=0; i<5 ; i++)
-//			for (i=0; i< (num_sessions - CtdlThreadGetWorkers()) ; i++)
-//			for (i=0; i< (10 - (55 - CtdlThreadWorkerAvg) / CtdlThreadWorkerAvg / CtdlThreadGetWorkers()) ; i++)
-			{
-//				begin_critical_section(S_THREAD_LIST);
-				CtdlThreadCreate("Worker Thread",
-					CTDLTHREAD_BIGSTACK + CTDLTHREAD_WORKER,
-					worker_thread,
-					NULL
-					);
-//				end_critical_section(S_THREAD_LIST);
-			}
-		}
-		
-		CtdlThreadGC();
-		
-		if (CtdlThreadGetCount() <= 1) // Shutting down clean up the garbage collector
-		{
-			CtdlThreadGC();
-		}
-		
-		if (CtdlThreadGetCount())
-			CtdlThreadSleep(1);
+	int exit_code = master_cleanup(exit_signal);
+	ctdl_lockfile(0);
+	if (restart_server) {
+		execv(argv[0], argv);
 	}
-	/*
-	 * If the above loop exits we must be shutting down since we obviously have no threads
-	 */
-	ctdl_thread_internal_cleanup();
+	return(exit_code);
 }