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// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// (C) Copyright 2007 Anthony Williams
// (C) Copyright 2011-2012 Vicente J. Botet Escriba
#ifndef BOOST_THREAD_LOCK_GUARD_HPP
#define BOOST_THREAD_LOCK_GUARD_HPP
#include <boost/thread/detail/config.hpp>
#include <boost/thread/detail/delete.hpp>
#include <boost/thread/detail/move.hpp>
#include <boost/thread/detail/lockable_wrapper.hpp>
#include <boost/thread/lock_options.hpp>
#if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
#include <boost/thread/is_locked_by_this_thread.hpp>
#include <boost/assert.hpp>
#endif
#include <boost/config/abi_prefix.hpp>
namespace boost
{
template <typename Mutex>
class lock_guard
{
private:
Mutex& m;
public:
typedef Mutex mutex_type;
BOOST_THREAD_NO_COPYABLE( lock_guard )
explicit lock_guard(Mutex& m_) :
m(m_)
{
m.lock();
}
lock_guard(Mutex& m_, adopt_lock_t) :
m(m_)
{
#if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
BOOST_ASSERT(is_locked_by_this_thread(m));
#endif
}
#if ! defined BOOST_THREAD_NO_CXX11_HDR_INITIALIZER_LIST
lock_guard(std::initializer_list<thread_detail::lockable_wrapper<Mutex> > l_) :
m(*(const_cast<thread_detail::lockable_wrapper<Mutex>*>(l_.begin())->m))
{
m.lock();
}
lock_guard(std::initializer_list<thread_detail::lockable_adopt_wrapper<Mutex> > l_) :
m(*(const_cast<thread_detail::lockable_adopt_wrapper<Mutex>*>(l_.begin())->m))
{
#if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
BOOST_ASSERT(is_locked_by_this_thread(m));
#endif
}
#endif
~lock_guard()
{
m.unlock();
}
};
#if ! defined BOOST_THREAD_NO_MAKE_LOCK_GUARD
template <typename Lockable>
lock_guard<Lockable> make_lock_guard(Lockable& mtx)
{
return { thread_detail::lockable_wrapper<Lockable>(mtx) };
}
template <typename Lockable>
lock_guard<Lockable> make_lock_guard(Lockable& mtx, adopt_lock_t)
{
return { thread_detail::lockable_adopt_wrapper<Lockable>(mtx) };
}
#endif
}
#include <boost/config/abi_suffix.hpp>
#endif
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