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/*
Copyright (C) 2002 Paul Davis
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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <map>
#include <iostream>
#include <string>
#include <stdint.h>
#include <pbd/pthread_utils.h>
using namespace std;
typedef std::map<string,pthread_t> ThreadMap;
static ThreadMap all_threads;
static pthread_mutex_t thread_map_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t gui_notify_lock = PTHREAD_MUTEX_INITIALIZER;
namespace PBD {
sigc::signal<void,pthread_t> ThreadLeaving;
sigc::signal<void,pthread_t,std::string,uint32_t> ThreadCreatedWithRequestSize;
}
using namespace PBD;
void
PBD::notify_gui_about_thread_creation (pthread_t thread, std::string str, int request_count)
{
pthread_mutex_lock (&gui_notify_lock);
ThreadCreatedWithRequestSize (thread, str, request_count);
pthread_mutex_unlock (&gui_notify_lock);
}
void
PBD::notify_gui_about_thread_exit (pthread_t thread)
{
pthread_mutex_lock (&gui_notify_lock);
ThreadLeaving (thread);
pthread_mutex_unlock (&gui_notify_lock);
}
int
pthread_create_and_store (string name, pthread_t *thread, pthread_attr_t *attr, void * (*start_routine)(void *), void * arg)
{
int ret;
pthread_attr_t default_attr;
bool use_default_attr = (attr == NULL);
if (use_default_attr) {
// set default stack size to sensible default for memlocking
pthread_attr_init(&default_attr);
pthread_attr_setstacksize(&default_attr, 500000);
attr = &default_attr;
}
if ((ret = pthread_create (thread, attr, start_routine, arg)) == 0) {
std::pair<string,pthread_t> newpair;
newpair.first = name;
newpair.second = *thread;
pthread_mutex_lock (&thread_map_lock);
all_threads.insert (newpair);
pthread_mutex_unlock (&thread_map_lock);
}
if (use_default_attr) {
pthread_attr_destroy(&default_attr);
}
return ret;
}
string
pthread_name ()
{
pthread_t self = pthread_self();
string str;
pthread_mutex_lock (&thread_map_lock);
for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
if (i->second == self) {
str = i->first;
pthread_mutex_unlock (&thread_map_lock);
return str;
}
}
pthread_mutex_unlock (&thread_map_lock);
return "unknown";
}
void
pthread_kill_all (int signum)
{
pthread_mutex_lock (&thread_map_lock);
for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
if (i->second != pthread_self()) {
pthread_kill (i->second, signum);
}
}
all_threads.clear();
pthread_mutex_unlock (&thread_map_lock);
}
void
pthread_cancel_all ()
{
pthread_mutex_lock (&thread_map_lock);
for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
if (i->second != pthread_self()) {
pthread_cancel (i->second);
}
}
all_threads.clear();
pthread_mutex_unlock (&thread_map_lock);
}
void
pthread_cancel_one (pthread_t thread)
{
pthread_mutex_lock (&thread_map_lock);
for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
if (i->second == thread) {
all_threads.erase (i);
break;
}
}
pthread_cancel (thread);
pthread_mutex_unlock (&thread_map_lock);
}
void
pthread_exit_pbd (void* status)
{
pthread_t thread = pthread_self();
pthread_mutex_lock (&thread_map_lock);
for (ThreadMap::iterator i = all_threads.begin(); i != all_threads.end(); ++i) {
if (i->second == thread) {
all_threads.erase (i);
break;
}
}
pthread_mutex_unlock (&thread_map_lock);
pthread_exit (status);
}
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