/*
- * $Id$
+ * Thread handling stuff for Citadel server
*
- * Citadel "system dependent" stuff.
- * See COPYING for copyright information.
+ * Copyright (c) 1987-2010 by the citadel.org team
*
- * Here's where we have the Citadel thread implimentation
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
*
+ * 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.
+ *
+ * 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
*/
#include <stdlib.h>
#include <fcntl.h>
#include <signal.h>
+#include "sysdep.h"
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
# endif
#endif
+#ifdef HAVE_SYSCALL_H
+# include <syscall.h>
+#else
+# if HAVE_SYS_SYSCALL_H
+# include <sys/syscall.h>
+# endif
+#endif
+
#include <libcitadel.h>
#include "threads.h"
#include "citserver.h"
#include "sysdep_decls.h"
#include "context.h"
+#include "event_client.h"
/*
* define this to use the new worker_thread method of handling connections
{
/* First run any registered shutdown hooks. This probably doesn't belong here. */
PerformSessionHooks(EVT_SHUTDOWN);
-
+
+ /* then close all tcp ports so nobody else can talk to us anymore. */
+ CtdlShutdownServiceHooks();
//FIXME: The signalling of the condition should not be in the critical_section
// We need to build a list of threads we are going to signal and then signal them afterwards
+ ShutDownEventQueue();
+
CtdlThreadNode *this_thread;
begin_critical_section(S_THREAD_LIST);
GC_thread->state = CTDL_THREAD_STOP_REQ;
while(this_thread)
{
-#ifdef THREADS_USESIGNALS
if (!citthread_equal(this_thread->tid, GC_thread->tid))
citthread_kill(this_thread->tid, SIGHUP);
-#endif
+
ctdl_thread_internal_change_state (this_thread, CTDL_THREAD_STOP_REQ);
citthread_cond_signal(&this_thread->ThreadCond);
citthread_cond_signal(&this_thread->SleepCond);
state = CT->state;
-#ifdef THREADS_USESIGNALS
if (CT->signal)
{
CtdlLogPrintf(CTDL_DEBUG, "Thread \"%s\" caught signal %d.\n", CT->name, CT->signal);
+ if (CT->signal == SIGHUP)
+ CT->state = CTDL_THREAD_STOP_REQ;
CT->signal = 0;
}
-#endif
if(state == CTDL_THREAD_STOP_REQ)
{
CT->state = CTDL_THREAD_STOPPING;
return;
if (!(this_thread->thread_func))
return; // Don't stop garbage collector
-#ifdef THREADS_USESIGNALS
+
if (!citthread_equal(this_thread->tid, GC_thread->tid))
citthread_kill(this_thread->tid, SIGHUP);
-#endif
+
ctdl_thread_internal_change_state (this_thread, CTDL_THREAD_STOP_REQ);
citthread_cond_signal(&this_thread->ThreadCond);
citthread_cond_signal(&this_thread->SleepCond);
* In here we were called by the current thread because it is exiting
* NB. WE ARE THE CURRENT THREAD
*/
- CtdlLogPrintf(CTDL_NOTICE, "Thread \"%s\" (0x%08lx) exited.\n", CT->name, CT->tid);
+ if (CT)
+ {
+ const char *name = CT->name;
+ const pid_t tid = CT->tid;
+
+ CtdlLogPrintf(CTDL_NOTICE, "Thread \"%s\" (0x%08lx) exited.\n", name, tid);
+ }
+ else
+ {
+ CtdlLogPrintf(CTDL_NOTICE, "some ((unknown ? ? ?) Thread exited.\n");
+ }
#ifdef HAVE_BACKTRACE
- eCrash_UnregisterThread();
+/// eCrash_UnregisterThread();
#endif
citthread_mutex_lock(&CT->ThreadMutex);
CtdlThreadNode *this_thread, *that_thread;
int workers = 0, sys_workers;
int ret=0;
-
+
begin_critical_section(S_THREAD_LIST);
/* Handle exiting of garbage collector thread */
if ((that_thread->state == CTDL_THREAD_STOP_REQ || that_thread->state == CTDL_THREAD_STOPPING)
&& (!citthread_equal(that_thread->tid, citthread_self())))
- CtdlLogPrintf(CTDL_DEBUG, "Waiting for thread %s (0x%08lx) to exit.\n", that_thread->name, that_thread->tid);
+ {
+ CtdlLogPrintf(CTDL_DEBUG, "Waiting for thread %s (0x%08lx) to exit.\n", that_thread->name, that_thread->tid);
+ terminate_stuck_sessions();
+ }
else
{
/**
// Register for tracing
#ifdef HAVE_BACKTRACE
- eCrash_RegisterThread(this_thread->name, 0);
+/// eCrash_RegisterThread(this_thread->name, 0);
#endif
// Tell the world we are here
+#if defined(HAVE_SYSCALL_H) && defined (SYS_gettid)
+ this_thread->reltid = syscall(SYS_gettid);
+#endif
CtdlLogPrintf(CTDL_NOTICE, "Created a new thread \"%s\" (0x%08lx).\n",
this_thread->name, this_thread->tid);
free(this_thread);
return NULL;
}
-
num_threads++; // Increase the count of threads in the system.
if(this_thread->flags & CTDLTHREAD_WORKER)
num_workers++;
-/*
- * Internal function to schedule a thread.
- * Must be called from within a S_THREAD_LIST critical section
- */
-CtdlThreadNode *CtdlThreadSchedule(char *name, long flags, void *(*thread_func) (void *arg), void *args, time_t when)
-{
- CtdlThreadNode *this_thread;
-
- if (num_threads >= 32767)
- {
- CtdlLogPrintf(CTDL_EMERG, "Thread system. Thread list full.\n");
- return NULL;
- }
-
- this_thread = malloc(sizeof(CtdlThreadNode));
- if (this_thread == NULL) {
- CtdlLogPrintf(CTDL_EMERG, "Thread system, can't allocate CtdlThreadNode, exiting\n");
- return NULL;
- }
- /* Initialise the thread structure */
- if (ctdl_internal_init_thread_struct(this_thread, flags) == NULL)
- {
- free(this_thread);
- CtdlLogPrintf(CTDL_EMERG, "Thread system, can't initialise CtdlThreadNode, exiting\n");
- return NULL;
- }
-
- /*
- * If we got here we are going to create the thread so we must initilise the structure
- * first because most implimentations of threading can't create it in a stopped state
- * and it might want to do things with its structure that aren't initialised otherwise.
- */
- if(name)
- {
- this_thread->name = name;
- }
- else
- {
- this_thread->name = "Un-named Thread";
- }
-
- this_thread->flags = flags;
- this_thread->thread_func = thread_func;
- this_thread->user_args = args;
-
- /*
- * When to start this thread
- */
- this_thread->when = when;
-
- begin_critical_section(S_SCHEDULE_LIST);
- this_thread->next = CtdlThreadSchedList;
- CtdlThreadSchedList = this_thread;
- if (this_thread->next)
- this_thread->next->prev = this_thread;
- end_critical_section(S_SCHEDULE_LIST);
-
- return this_thread;
-}
-
-
-
CtdlThreadNode *ctdl_thread_internal_start_scheduled (CtdlThreadNode *this_thread)
{
int ret = 0;
ctdl_thread_internal_init();
/* Second call to module init functions now that threading is up */
- if (!statcount)
+ if (!statcount) {
initialise_modules(1);
+ CtdlThreadCreate("select_on_master", CTDLTHREAD_BIGSTACK, select_on_master, NULL);
+ }
else {
CtdlLogPrintf(CTDL_EMERG, "Running connection simulation stats\n");
gettimeofday(&start, NULL);
projects / citadel.git / blobdiff