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170 lines
4.2 KiB
170 lines
4.2 KiB
/* |
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* Copyright Andrey Semashev 2007 - 2015. |
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* Distributed under the Boost Software License, Version 1.0. |
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* (See accompanying file LICENSE_1_0.txt or copy at |
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* http://www.boost.org/LICENSE_1_0.txt) |
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*/ |
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/*! |
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* \file detail/event.hpp |
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* \author Andrey Semashev |
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* \date 24.07.2011 |
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*/ |
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#ifndef BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_ |
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#define BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_ |
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#include <boost/log/detail/config.hpp> |
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#ifdef BOOST_HAS_PRAGMA_ONCE |
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#pragma once |
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#endif |
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#ifndef BOOST_LOG_NO_THREADS |
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#if defined(BOOST_THREAD_PLATFORM_PTHREAD) |
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# include <boost/atomic/capabilities.hpp> |
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# if (defined(linux) || defined(__linux) || defined(__linux__)) && BOOST_ATOMIC_INT_LOCK_FREE == 2 |
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# include <boost/atomic/atomic.hpp> |
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# define BOOST_LOG_EVENT_USE_FUTEX |
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# elif defined(_POSIX_SEMAPHORES) && (_POSIX_SEMAPHORES + 0) > 0 && BOOST_ATOMIC_FLAG_LOCK_FREE == 2 |
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# include <semaphore.h> |
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# include <boost/cstdint.hpp> |
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# include <boost/atomic/atomic_flag.hpp> |
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# define BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE |
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# endif |
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#elif defined(BOOST_THREAD_PLATFORM_WIN32) |
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# include <boost/cstdint.hpp> |
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# define BOOST_LOG_EVENT_USE_WINAPI |
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#endif |
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#if !defined(BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE) && !defined(BOOST_LOG_EVENT_USE_WINAPI) |
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# include <boost/thread/mutex.hpp> |
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# include <boost/thread/condition_variable.hpp> |
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# define BOOST_LOG_EVENT_USE_BOOST_CONDITION |
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#endif |
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#include <boost/log/detail/header.hpp> |
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namespace boost { |
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BOOST_LOG_OPEN_NAMESPACE |
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namespace aux { |
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#if defined(BOOST_LOG_EVENT_USE_FUTEX) |
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class futex_based_event |
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{ |
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private: |
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boost::atomic< int > m_state; |
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public: |
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//! Default constructor |
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BOOST_LOG_API futex_based_event(); |
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//! Destructor |
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BOOST_LOG_API ~futex_based_event(); |
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//! Waits for the object to become signalled |
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BOOST_LOG_API void wait(); |
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//! Sets the object to a signalled state |
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BOOST_LOG_API void set_signalled(); |
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// Copying prohibited |
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BOOST_DELETED_FUNCTION(futex_based_event(futex_based_event const&)) |
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BOOST_DELETED_FUNCTION(futex_based_event& operator= (futex_based_event const&)) |
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}; |
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typedef futex_based_event event; |
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#elif defined(BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE) |
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class sem_based_event |
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{ |
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private: |
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boost::atomic_flag m_state; |
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sem_t m_semaphore; |
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public: |
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//! Default constructor |
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BOOST_LOG_API sem_based_event(); |
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//! Destructor |
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BOOST_LOG_API ~sem_based_event(); |
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//! Waits for the object to become signalled |
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BOOST_LOG_API void wait(); |
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//! Sets the object to a signalled state |
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BOOST_LOG_API void set_signalled(); |
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// Copying prohibited |
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BOOST_DELETED_FUNCTION(sem_based_event(sem_based_event const&)) |
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BOOST_DELETED_FUNCTION(sem_based_event& operator= (sem_based_event const&)) |
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}; |
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typedef sem_based_event event; |
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#elif defined(BOOST_LOG_EVENT_USE_WINAPI) |
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class winapi_based_event |
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{ |
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private: |
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boost::uint32_t m_state; |
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void* m_event; |
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public: |
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//! Default constructor |
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BOOST_LOG_API winapi_based_event(); |
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//! Destructor |
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BOOST_LOG_API ~winapi_based_event(); |
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//! Waits for the object to become signalled |
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BOOST_LOG_API void wait(); |
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//! Sets the object to a signalled state |
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BOOST_LOG_API void set_signalled(); |
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// Copying prohibited |
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BOOST_DELETED_FUNCTION(winapi_based_event(winapi_based_event const&)) |
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BOOST_DELETED_FUNCTION(winapi_based_event& operator= (winapi_based_event const&)) |
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}; |
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typedef winapi_based_event event; |
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#else |
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class generic_event |
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{ |
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private: |
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boost::mutex m_mutex; |
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boost::condition_variable m_cond; |
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bool m_state; |
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public: |
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//! Default constructor |
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BOOST_LOG_API generic_event(); |
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//! Destructor |
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BOOST_LOG_API ~generic_event(); |
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//! Waits for the object to become signalled |
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BOOST_LOG_API void wait(); |
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//! Sets the object to a signalled state |
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BOOST_LOG_API void set_signalled(); |
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// Copying prohibited |
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BOOST_DELETED_FUNCTION(generic_event(generic_event const&)) |
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BOOST_DELETED_FUNCTION(generic_event& operator= (generic_event const&)) |
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}; |
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typedef generic_event event; |
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#endif |
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} // namespace aux |
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BOOST_LOG_CLOSE_NAMESPACE // namespace log |
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} // namespace boost |
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#include <boost/log/detail/footer.hpp> |
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#endif // BOOST_LOG_NO_THREADS |
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#endif // BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_
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