1 /* 2 * Copyright Andrey Semashev 2007 - 2015. 3 * Distributed under the Boost Software License, Version 1.0. 4 * (See accompanying file LICENSE_1_0.txt or copy at 5 * http://www.boost.org/LICENSE_1_0.txt) 6 */ 7 /*! 8 * \file fake_mutex.hpp 9 * \author Andrey Semashev 10 * \date 31.07.2011 11 * 12 * \brief This header is the Boost.Log library implementation, see the library documentation 13 * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. 14 */ 15 16 #ifndef BOOST_LOG_DETAIL_FAKE_MUTEX_HPP_INCLUDED_ 17 #define BOOST_LOG_DETAIL_FAKE_MUTEX_HPP_INCLUDED_ 18 19 #include <boost/log/detail/config.hpp> 20 #include <boost/log/detail/header.hpp> 21 22 #ifdef BOOST_HAS_PRAGMA_ONCE 23 #pragma once 24 #endif 25 26 namespace boost { 27 28 BOOST_LOG_OPEN_NAMESPACE 29 30 namespace aux { 31 32 //! Fake mutex that doesn't do anything. Note: we're not using \c null_mutex from Boost.Thread in order not to introduce false dependencies on Boost.Thread and Boost.Chrono. 33 class fake_mutex 34 { 35 public: fake_mutex()36 BOOST_DEFAULTED_FUNCTION(fake_mutex(), {}) 37 void lock() {} try_lock()38 bool try_lock() { return true; } 39 template< typename T > timed_lock(T const &)40 bool timed_lock(T const&) { return true; } unlock()41 void unlock() {} 42 43 // Copying prohibited 44 BOOST_DELETED_FUNCTION(fake_mutex(fake_mutex const&)) 45 BOOST_DELETED_FUNCTION(fake_mutex& operator=(fake_mutex const&)) 46 }; 47 48 } // namespace aux 49 50 BOOST_LOG_CLOSE_NAMESPACE // namespace log 51 52 } // namespace boost 53 54 #include <boost/log/detail/footer.hpp> 55 56 #endif // BOOST_LOG_DETAIL_FAKE_MUTEX_HPP_INCLUDED_ 57