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 Anthony Williams
Chris@16: // (C) Copyright 2011-2012 Vicente J. Botet Escriba
Chris@16: 
Chris@16: #ifndef BOOST_THREAD_LOCK_GUARD_HPP
Chris@16: #define BOOST_THREAD_LOCK_GUARD_HPP
Chris@16: 
Chris@16: #include <boost/thread/detail/config.hpp>
Chris@16: #include <boost/thread/detail/delete.hpp>
Chris@16: #include <boost/thread/detail/move.hpp>
Chris@16: #include <boost/thread/detail/lockable_wrapper.hpp>
Chris@16: #include <boost/thread/lock_options.hpp>
Chris@16: #if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
Chris@16: #include <boost/thread/is_locked_by_this_thread.hpp>
Chris@16: #include <boost/assert.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/config/abi_prefix.hpp>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16: 
Chris@16:   template <typename Mutex>
Chris@16:   class lock_guard
Chris@16:   {
Chris@16:   private:
Chris@16:     Mutex& m;
Chris@16: 
Chris@16:   public:
Chris@16:     typedef Mutex mutex_type;
Chris@16:     BOOST_THREAD_NO_COPYABLE( lock_guard )
Chris@16: 
Chris@16:     explicit lock_guard(Mutex& m_) :
Chris@16:       m(m_)
Chris@16:     {
Chris@16:       m.lock();
Chris@16:     }
Chris@16: 
Chris@16:     lock_guard(Mutex& m_, adopt_lock_t) :
Chris@16:       m(m_)
Chris@16:     {
Chris@16: #if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
Chris@16:       BOOST_ASSERT(is_locked_by_this_thread(m));
Chris@16: #endif
Chris@16:     }
Chris@16: 
Chris@16: #if ! defined BOOST_THREAD_NO_CXX11_HDR_INITIALIZER_LIST
Chris@16:     lock_guard(std::initializer_list<thread_detail::lockable_wrapper<Mutex> > l_) :
Chris@16:       m(*(const_cast<thread_detail::lockable_wrapper<Mutex>*>(l_.begin())->m))
Chris@16:     {
Chris@16:       m.lock();
Chris@16:     }
Chris@16: 
Chris@16:     lock_guard(std::initializer_list<thread_detail::lockable_adopt_wrapper<Mutex> > l_) :
Chris@16:       m(*(const_cast<thread_detail::lockable_adopt_wrapper<Mutex>*>(l_.begin())->m))
Chris@16:     {
Chris@16: #if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
Chris@16:       BOOST_ASSERT(is_locked_by_this_thread(m));
Chris@16: #endif
Chris@16:     }
Chris@16: 
Chris@16: #endif
Chris@16:     ~lock_guard()
Chris@16:     {
Chris@16:       m.unlock();
Chris@16:     }
Chris@16:   };
Chris@16: 
Chris@16: 
Chris@16: #if ! defined BOOST_THREAD_NO_MAKE_LOCK_GUARD
Chris@16:   template <typename Lockable>
Chris@16:   lock_guard<Lockable> make_lock_guard(Lockable& mtx)
Chris@16:   {
Chris@16:     return { thread_detail::lockable_wrapper<Lockable>(mtx) };
Chris@16:   }
Chris@16:   template <typename Lockable>
Chris@16:   lock_guard<Lockable> make_lock_guard(Lockable& mtx, adopt_lock_t)
Chris@16:   {
Chris@16:     return { thread_detail::lockable_adopt_wrapper<Lockable>(mtx) };
Chris@16:   }
Chris@16: #endif
Chris@16: }
Chris@16: 
Chris@16: #include <boost/config/abi_suffix.hpp>
Chris@16: 
Chris@16: #endif