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Diffstat (limited to 'libs/pbd3/pthread_utils.cc')
-rw-r--r-- | libs/pbd3/pthread_utils.cc | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libs/pbd3/pthread_utils.cc b/libs/pbd3/pthread_utils.cc new file mode 100644 index 0000000000..6ef29e3605 --- /dev/null +++ b/libs/pbd3/pthread_utils.cc @@ -0,0 +1,133 @@ +/* + 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 <pbd/pthread_utils.h> + +using std::string; +using std::cerr; +using std::endl; + +typedef std::map<string,pthread_t> ThreadMap; +static ThreadMap all_threads; +static pthread_mutex_t thread_map_lock = PTHREAD_MUTEX_INITIALIZER; + +namespace PBD { + sigc::signal<void,pthread_t,std::string> ThreadCreated; +} + +using namespace PBD; + +int +pthread_create_and_store (string name, pthread_t *thread, pthread_attr_t *attr, void * (*start_routine)(void *), void * arg) +{ + int ret; + + 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); + } + + 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); +} |