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#ifndef BOOST_SYSTEM_DETAIL_MUTEX_HPP_INCLUDED | ||
#define BOOST_SYSTEM_DETAIL_MUTEX_HPP_INCLUDED | ||
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// Copyright 2023 Peter Dimov | ||
// Distributed under the Boost Software License, Version 1.0. | ||
// https://www.boost.org/LICENSE_1_0.txt) | ||
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#include <boost/config.hpp> | ||
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#if defined(BOOST_SYSTEM_DISABLE_THREADS) | ||
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namespace boost | ||
{ | ||
namespace system | ||
{ | ||
namespace detail | ||
{ | ||
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struct mutex | ||
{ | ||
void lock() | ||
{ | ||
} | ||
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void unlock() | ||
{ | ||
} | ||
}; | ||
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} // namespace detail | ||
} // namespace system | ||
} // namespace boost | ||
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#else | ||
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#include <mutex> | ||
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namespace boost | ||
{ | ||
namespace system | ||
{ | ||
namespace detail | ||
{ | ||
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using std::mutex; | ||
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} // namespace detail | ||
} // namespace system | ||
} // namespace boost | ||
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#endif | ||
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namespace boost | ||
{ | ||
namespace system | ||
{ | ||
namespace detail | ||
{ | ||
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template<class Mtx> class lock_guard | ||
{ | ||
private: | ||
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Mtx& mtx_; | ||
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private: | ||
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lock_guard( lock_guard const& ); | ||
lock_guard& operator=( lock_guard const& ); | ||
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public: | ||
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explicit lock_guard( Mtx& mtx ): mtx_( mtx ) | ||
{ | ||
mtx_.lock(); | ||
} | ||
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~lock_guard() | ||
{ | ||
mtx_.unlock(); | ||
} | ||
}; | ||
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} // namespace detail | ||
} // namespace system | ||
} // namespace boost | ||
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#endif // #ifndef BOOST_SYSTEM_DETAIL_MUTEX_HPP_INCLUDED |