diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
commit | 449aab3c465bbbf66d221fac3d7ea559f1720357 (patch) | |
tree | 6843cc40c88250a132acac701271f1504cd2df04 /libs/pbd/pthread_utils.cc | |
parent | 9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (diff) |
rollback to 3428, before the mysterious removal of libs/* at 3431/3432
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/pbd/pthread_utils.cc')
-rw-r--r-- | libs/pbd/pthread_utils.cc | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/libs/pbd/pthread_utils.cc b/libs/pbd/pthread_utils.cc new file mode 100644 index 0000000000..3408f2c0b7 --- /dev/null +++ b/libs/pbd/pthread_utils.cc @@ -0,0 +1,147 @@ +/* + 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; + +namespace PBD { + sigc::signal<void,pthread_t,std::string> ThreadCreated; + sigc::signal<void,pthread_t,std::string,uint32_t> ThreadCreatedWithRequestSize; +} + +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; + + 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); +} |