git-svn-id: svn://localhost/ardour2/branches/3.0@6399 d708f5d6-7413-0410-9779-e7cbd77b26cf
183 lines
4.4 KiB
C++
183 lines
4.4 KiB
C++
/*
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Copyright (C) 2002 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <set>
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#include <iostream>
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#include <string>
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#include <stdint.h>
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#include "pbd/pthread_utils.h"
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#ifdef WINE_THREAD_SUPPORT
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#include <fst.h>
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#endif
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using namespace std;
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typedef std::set<pthread_t> ThreadMap;
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static ThreadMap all_threads;
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static pthread_mutex_t thread_map_lock = PTHREAD_MUTEX_INITIALIZER;
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static Glib::StaticPrivate<char> thread_name;
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namespace PBD {
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PBD::Signal4<void,std::string, pthread_t,std::string,uint32_t> ThreadCreatedWithRequestSize;
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}
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using namespace PBD;
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static int thread_creator (pthread_t* thread_id, const pthread_attr_t* attr, void *(*function)(void*), void* arg)
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{
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#ifdef WINE_THREAD_SUPPORT
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return wine_pthread_create (thread_id, attr, function, arg);
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#else
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return pthread_create (thread_id, attr, function, arg);
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#endif
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}
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void
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PBD::notify_gui_about_thread_creation (std::string target_gui, pthread_t thread, std::string str, int request_count)
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{
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ThreadCreatedWithRequestSize (target_gui, thread, str, request_count);
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}
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struct ThreadStartWithName {
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void* (*thread_work)(void*);
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void* arg;
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const char* name;
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ThreadStartWithName (void* (*f)(void*), void* a, const char* s)
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: thread_work (f), arg (a), name (s) {}
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};
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static void*
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fake_thread_start (void* arg)
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{
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ThreadStartWithName* ts = (ThreadStartWithName*) arg;
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void* (*thread_work)(void*) = ts->thread_work;
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void* thread_arg = ts->arg;
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pthread_set_name (ts->name);
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delete ts;
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/* name will be deleted by the default handler for GStaticPrivate, when the thread exits */
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return thread_work (thread_arg);
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}
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int
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pthread_create_and_store (string name, pthread_t *thread, void * (*start_routine)(void *), void * arg)
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{
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pthread_attr_t default_attr;
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int ret;
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// set default stack size to sensible default for memlocking
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pthread_attr_init(&default_attr);
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pthread_attr_setstacksize(&default_attr, 500000);
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char* cname = new char[name.length() + 1];
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strcpy (cname, name.c_str());
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ThreadStartWithName* ts = new ThreadStartWithName (start_routine, arg, cname);
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if ((ret = thread_creator (thread, &default_attr, fake_thread_start, ts)) == 0) {
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pthread_mutex_lock (&thread_map_lock);
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all_threads.insert (*thread);
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pthread_mutex_unlock (&thread_map_lock);
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}
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pthread_attr_destroy(&default_attr);
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return ret;
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}
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void
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pthread_set_name (const char *str)
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{
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/* str will be deleted when this thread exits */
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thread_name.set (const_cast<char*>(str));
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}
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const char *
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pthread_name ()
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{
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const char* str = thread_name.get ();
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if (str) {
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return str;
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}
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return "unknown";
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}
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void
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pthread_kill_all (int signum)
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{
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pthread_mutex_lock (&thread_map_lock);
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for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
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if ((*i) != pthread_self()) {
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pthread_kill ((*i), signum);
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}
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}
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all_threads.clear();
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pthread_mutex_unlock (&thread_map_lock);
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}
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void
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pthread_cancel_all ()
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{
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pthread_mutex_lock (&thread_map_lock);
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for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
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if ((*i) != pthread_self()) {
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pthread_cancel ((*i));
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}
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}
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all_threads.clear();
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pthread_mutex_unlock (&thread_map_lock);
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}
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void
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pthread_cancel_one (pthread_t thread)
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{
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pthread_mutex_lock (&thread_map_lock);
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for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
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if ((*i) == thread) {
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all_threads.erase (i);
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break;
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}
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}
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pthread_cancel (thread);
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pthread_mutex_unlock (&thread_map_lock);
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}
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void
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pthread_exit_pbd (void* status)
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{
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pthread_t thread = pthread_self();
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pthread_mutex_lock (&thread_map_lock);
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for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
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if ((*i) == thread) {
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all_threads.erase (i);
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break;
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}
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}
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pthread_mutex_unlock (&thread_map_lock);
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pthread_exit (status);
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}
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