X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fserver_main.c;h=592ea7708bbc620f518e10eb21af59406b86642d;hb=a793d2fbf5e0aa9151490b76defd22f6db7ef7ed;hp=363c058cd35b2343850e83e0810f0f0347af97ae;hpb=8c538eeb2d9b024970c350730b4748b870762c5f;p=citadel.git

diff --git a/citadel/server_main.c b/citadel/server_main.c
index 363c058cd..592ea7708 100644
--- a/citadel/server_main.c
+++ b/citadel/server_main.c
@@ -1,7 +1,15 @@
 /*
  * citserver's main() function lives here.
+ * 
+ * Copyright (c) 1987-2012 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"
@@ -38,9 +46,6 @@
 #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
@@ -49,6 +54,7 @@
 #include "server.h"
 #include "serv_extensions.h"
 #include "sysdep_decls.h"
+#include "threads.h"
 #include "citserver.h"
 #include "support.h"
 #include "config.h"
@@ -56,7 +62,10 @@
 #include "database.h"
 #include "user_ops.h"
 #include "housekeeping.h"
-#include "citadel_dirs.c"
+#include "svn_revision.h"
+#include "citadel_dirs.h"
+
+#include "context.h"
 
 #include "modules_init.h"
 #include "ecrash.h"
@@ -72,8 +81,8 @@ const char *CitadelServiceUDS="citadel-UDS";
 const char *CitadelServiceTCP="citadel-TCP";
 
 
-void go_threading(void);
 
+void go_threading(void);
 
 /*
  * Here's where it all begins.
@@ -85,12 +94,12 @@ int main(int argc, char **argv)
 	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;
 	char relhome[PATH_MAX]="";
 	char ctdldir[PATH_MAX]=CTDLDIR;
+	int syslog_facility = LOG_DAEMON;
 #ifdef HAVE_RUN_DIR
 	struct stat filestats;
 #endif
@@ -98,14 +107,10 @@ int main(int argc, char **argv)
 	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) {
@@ -113,7 +118,6 @@ int main(int argc, char **argv)
 		if (!strncmp(argv[a], "-l", 2)) {
 			safestrncpy(facility, &argv[a][2], sizeof(facility));
 			syslog_facility = SyslogFacility(facility);
-			enable_syslog = 1;
 		}
 
 		/* run in the background if -d was specified */
@@ -121,28 +125,23 @@ int main(int argc, char **argv)
 			running_as_daemon = 1;
 		}
 
-		/* -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;
+			if (!relh) {
+				safestrncpy(ctdl_home_directory, &argv[a][2], sizeof ctdl_home_directory);
+			}
+			else {
+				safestrncpy(relhome, &argv[a][2], sizeof relhome);
+			}
 			home=1;
 		}
 
-		else if (!strncmp(argv[a], "-t", 2)) {
-			freopen(&argv[a][2], "w", stderr);
+		else if (!strncmp(argv[a], "-x", 2)) {
+			/* deprecated */
 		}
 
-		else if (!strncmp(argv[a], "-f", 2)) {
-			do_defrag = 1;
+		else if (!strncmp(argv[a], "-t", 2)) {
+			/* deprecated */
 		}
 
 		else if (!strncmp(argv[a], "-D", 2)) {
@@ -152,22 +151,28 @@ int main(int argc, char **argv)
 		/* -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"))
+		else if (!strcmp(argv[a], "-r")) {
 			drop_root_perms = 0;
+		}
 
 		/* 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");
+					"[-d] [-D] [-s] "
+					"[-hHomeDir]\n"
+			);
 			exit(1);
 		}
 
 	}
 
+	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) {
@@ -183,61 +188,61 @@ int main(int argc, char **argv)
 	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());
+	syslog(LOG_NOTICE, " ");
+	syslog(LOG_NOTICE, " ");
+	syslog(LOG_NOTICE,
+		"*** Citadel server engine v%d.%02d (build %s) ***",
+		(REV_LEVEL/100), (REV_LEVEL%100), svn_revision());
+	syslog(LOG_NOTICE, "Copyright (C) 1987-2012 by the Citadel development team.");
+	syslog(LOG_NOTICE, "This program is distributed under the terms of the GNU "
+					"General Public License.");
+	syslog(LOG_NOTICE, " ");
+	syslog(LOG_DEBUG, "Called as: %s", argv[0]);
+	syslog(LOG_INFO, "%s", libcitadel_version_string());
 
 	/* Load site-specific parameters, and set the ipgm secret */
-	CtdlLogPrintf(CTDL_INFO, "Loading citadel.config\n");
+	syslog(LOG_INFO, "Loading citadel.config");
 	get_config();
 	config.c_ipgm_secret = rand();
+
+	/* get_control() MUST MUST MUST be called BEFORE the databases are opened!! */
+	syslog(LOG_INFO, "Acquiring control record");
+	get_control();
+
 	put_config();
 
 #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){
+#ifdef HAVE_GETPWUID_R
 #ifdef SOLARIS_GETPWUID
 		pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
-#else
+#else // SOLARIS_GETPWUID
 		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);
+#endif // SOLARIS_GETPWUID
+#else // HAVE_GETPWUID_R
+		pwp = NULL;
+#endif // HAVE_GETPWUID_R
+
+		if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST))
+			syslog(LOG_EMERG, 
+				      "unable to create run directory [%s]: %s", 
+				      ctdl_run_dir, strerror(errno));
+
+		if (chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0)
+			syslog(LOG_EMERG, 
+				      "unable to set the access rights for [%s]: %s", 
+				      ctdl_run_dir, strerror(errno));
 	}
 			
 
@@ -251,9 +256,28 @@ int main(int argc, char **argv)
 	 */
 	master_startup();
 
-	CtdlLogPrintf(CTDL_INFO, "Acquiring control record\n");
-	get_control();
-
+	/*
+	 * Check that the control record is correct and place sensible values if it isn't
+	 */
+	check_control();
+	
+	/*
+	 * Run any upgrade entry points
+	 */
+	syslog(LOG_INFO, "Upgrading modules.");
+	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 */
+	}
+	
 	/*
 	 * Bind the server to a Unix-domain socket.
 	 */
@@ -275,30 +299,30 @@ int main(int argc, char **argv)
 				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, "Initializing server extensions");
 	
 	initialise_modules(0);
-	
-	
 
 	/*
 	 * If we need host auth, start our chkpwd daemon.
 	 */
-	if (config.c_auth_mode == 1) {
+	if (config.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 +330,29 @@ 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
+#else // SOLARIS_GETPWUID
 		getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
-#endif
+#endif // SOLARIS_GETPWUID
+#else // HAVE_GETPWUID_R
+		pwp = NULL;
+#endif // HAVE_GETPWUID_R
+
 		if (pwp == NULL)
-			CtdlLogPrintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
+			syslog(LOG_CRIT, "WARNING: getpwuid(%ld): %s"
 				   "Group IDs will be incorrect.\n", (long)CTDLUID,
 				strerror(errno));
 		else {
 			initgroups(pw.pw_name, pw.pw_gid);
 			if (setgid(pw.pw_gid))
-				CtdlLogPrintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
+				syslog(LOG_CRIT, "setgid(%ld): %s", (long)pw.pw_gid,
 					strerror(errno));
 		}
-		CtdlLogPrintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
+		syslog(LOG_INFO, "Changing uid to %ld", (long)CTDLUID);
 		if (setuid(CTDLUID) != 0) {
-			CtdlLogPrintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
+			syslog(LOG_CRIT, "setuid() failed: %s", strerror(errno));
 		}
 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
 		prctl(PR_SET_DUMPABLE, 1);
@@ -335,130 +364,6 @@ int main(int argc, char **argv)
 
 	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);
-			
-			ctdl_thread_internal_check_scheduled(); /* start scheduled threads */
-		}
-		
-		/* 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);
-	}
-	/*
-	 * If the above loop exits we must be shutting down since we obviously have no threads
-	 */
-	ctdl_thread_internal_cleanup();
-}