/usr/include/boost/thread/lock_guard.hpp is in libboost1.54-dev 1.54.0-4ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | // 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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