Chris@16: #ifndef BOOST_THREAD_DETAIL_THREAD_GROUP_HPP
Chris@16: #define BOOST_THREAD_DETAIL_THREAD_GROUP_HPP
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: // (C) Copyright 2007-9 Anthony Williams
Chris@16: 
Chris@16: #include <list>
Chris@16: #include <boost/thread/shared_mutex.hpp>
Chris@16: #include <boost/thread/mutex.hpp>
Chris@16: #include <boost/thread/lock_guard.hpp>
Chris@16: 
Chris@16: #include <boost/config/abi_prefix.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(push)
Chris@16: #pragma warning(disable:4251)
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     class thread_group
Chris@16:     {
Chris@16:     private:
Chris@16:         thread_group(thread_group const&);
Chris@16:         thread_group& operator=(thread_group const&);
Chris@16:     public:
Chris@16:         thread_group() {}
Chris@16:         ~thread_group()
Chris@16:         {
Chris@16:             for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
Chris@16:                 it!=end;
Chris@16:                 ++it)
Chris@16:             {
Chris@16:                 delete *it;
Chris@16:             }
Chris@16:         }
Chris@16: 
Chris@16:         bool is_this_thread_in()
Chris@16:         {
Chris@16:             thread::id id = this_thread::get_id();
Chris@16:             boost::shared_lock<shared_mutex> guard(m);
Chris@16:             for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
Chris@16:                 it!=end;
Chris@16:                 ++it)
Chris@16:             {
Chris@16:               if ((*it)->get_id() == id)
Chris@16:                 return true;
Chris@16:             }
Chris@16:             return false;
Chris@16:         }
Chris@16: 
Chris@16:         bool is_thread_in(thread* thrd)
Chris@16:         {
Chris@16:           if(thrd)
Chris@16:           {
Chris@16:             thread::id id = thrd->get_id();
Chris@16:             boost::shared_lock<shared_mutex> guard(m);
Chris@16:             for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
Chris@16:                 it!=end;
Chris@16:                 ++it)
Chris@16:             {
Chris@16:               if ((*it)->get_id() == id)
Chris@16:                 return true;
Chris@16:             }
Chris@16:             return false;
Chris@16:           }
Chris@16:           else
Chris@16:           {
Chris@16:             return false;
Chris@16:           }
Chris@16:         }
Chris@16: 
Chris@16:         template<typename F>
Chris@16:         thread* create_thread(F threadfunc)
Chris@16:         {
Chris@16:             boost::lock_guard<shared_mutex> guard(m);
Chris@16:             std::auto_ptr<thread> new_thread(new thread(threadfunc));
Chris@16:             threads.push_back(new_thread.get());
Chris@16:             return new_thread.release();
Chris@16:         }
Chris@16: 
Chris@16:         void add_thread(thread* thrd)
Chris@16:         {
Chris@16:             if(thrd)
Chris@16:             {
Chris@16:                 BOOST_THREAD_ASSERT_PRECONDITION( ! is_thread_in(thrd) ,
Chris@101:                     thread_resource_error(static_cast<int>(system::errc::resource_deadlock_would_occur), "boost::thread_group: trying to add a duplicated thread")
Chris@16:                 );
Chris@16: 
Chris@16:                 boost::lock_guard<shared_mutex> guard(m);
Chris@16:                 threads.push_back(thrd);
Chris@16:             }
Chris@16:         }
Chris@16: 
Chris@16:         void remove_thread(thread* thrd)
Chris@16:         {
Chris@16:             boost::lock_guard<shared_mutex> guard(m);
Chris@16:             std::list<thread*>::iterator const it=std::find(threads.begin(),threads.end(),thrd);
Chris@16:             if(it!=threads.end())
Chris@16:             {
Chris@16:                 threads.erase(it);
Chris@16:             }
Chris@16:         }
Chris@16: 
Chris@16:         void join_all()
Chris@16:         {
Chris@16:             BOOST_THREAD_ASSERT_PRECONDITION( ! is_this_thread_in() ,
Chris@101:                 thread_resource_error(static_cast<int>(system::errc::resource_deadlock_would_occur), "boost::thread_group: trying joining itself")
Chris@16:             );
Chris@16:             boost::shared_lock<shared_mutex> guard(m);
Chris@16: 
Chris@16:             for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
Chris@16:                 it!=end;
Chris@16:                 ++it)
Chris@16:             {
Chris@16:               if ((*it)->joinable())
Chris@16:                 (*it)->join();
Chris@16:             }
Chris@16:         }
Chris@16: 
Chris@16: #if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
Chris@16:         void interrupt_all()
Chris@16:         {
Chris@16:             boost::shared_lock<shared_mutex> guard(m);
Chris@16: 
Chris@16:             for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
Chris@16:                 it!=end;
Chris@16:                 ++it)
Chris@16:             {
Chris@16:                 (*it)->interrupt();
Chris@16:             }
Chris@16:         }
Chris@16: #endif
Chris@16: 
Chris@16:         size_t size() const
Chris@16:         {
Chris@16:             boost::shared_lock<shared_mutex> guard(m);
Chris@16:             return threads.size();
Chris@16:         }
Chris@16: 
Chris@16:     private:
Chris@16:         std::list<thread*> threads;
Chris@16:         mutable shared_mutex m;
Chris@16:     };
Chris@16: }
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/config/abi_suffix.hpp>
Chris@16: 
Chris@16: #endif