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