Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   detail/event.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   24.07.2011
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_LOG_NO_THREADS
Chris@16: 
Chris@16: #if defined(BOOST_THREAD_PLATFORM_PTHREAD)
Chris@16: #   if defined(_POSIX_SEMAPHORES) && (_POSIX_SEMAPHORES + 0) > 0
Chris@16: #       if defined(__GNUC__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
Chris@16: #           include <semaphore.h>
Chris@16: #           include <boost/cstdint.hpp>
Chris@16: #           define BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE
Chris@16: #       endif
Chris@16: #   endif
Chris@16: #elif defined(BOOST_THREAD_PLATFORM_WIN32)
Chris@16: #   include <boost/cstdint.hpp>
Chris@16: #   define BOOST_LOG_EVENT_USE_WINAPI
Chris@16: #endif
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE) && !defined(BOOST_LOG_EVENT_USE_WINAPI)
Chris@16: #   include <boost/thread/mutex.hpp>
Chris@16: #   include <boost/thread/condition_variable.hpp>
Chris@16: #   define BOOST_LOG_EVENT_USE_BOOST_CONDITION
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/log/detail/header.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: BOOST_LOG_OPEN_NAMESPACE
Chris@16: 
Chris@16: namespace aux {
Chris@16: 
Chris@16: #if defined(BOOST_LOG_EVENT_USE_POSIX_SEMAPHORE)
Chris@16: 
Chris@16: class sem_based_event
Chris@16: {
Chris@16: private:
Chris@16:     boost::uint32_t m_state;
Chris@16:     sem_t m_semaphore;
Chris@16: 
Chris@16: public:
Chris@16:     //! Default constructor
Chris@16:     BOOST_LOG_API sem_based_event();
Chris@16:     //! Destructor
Chris@16:     BOOST_LOG_API ~sem_based_event();
Chris@16: 
Chris@16:     //! Waits for the object to become signalled
Chris@16:     BOOST_LOG_API void wait();
Chris@16:     //! Sets the object to a signalled state
Chris@16:     BOOST_LOG_API void set_signalled();
Chris@16: 
Chris@16:     //  Copying prohibited
Chris@16:     BOOST_DELETED_FUNCTION(sem_based_event(sem_based_event const&))
Chris@16:     BOOST_DELETED_FUNCTION(sem_based_event& operator= (sem_based_event const&))
Chris@16: };
Chris@16: 
Chris@16: typedef sem_based_event event;
Chris@16: 
Chris@16: #elif defined(BOOST_LOG_EVENT_USE_WINAPI)
Chris@16: 
Chris@16: class winapi_based_event
Chris@16: {
Chris@16: private:
Chris@16:     boost::uint32_t m_state;
Chris@16:     void* m_event;
Chris@16: 
Chris@16: public:
Chris@16:     //! Default constructor
Chris@16:     BOOST_LOG_API winapi_based_event();
Chris@16:     //! Destructor
Chris@16:     BOOST_LOG_API ~winapi_based_event();
Chris@16: 
Chris@16:     //! Waits for the object to become signalled
Chris@16:     BOOST_LOG_API void wait();
Chris@16:     //! Sets the object to a signalled state
Chris@16:     BOOST_LOG_API void set_signalled();
Chris@16: 
Chris@16:     //  Copying prohibited
Chris@16:     BOOST_DELETED_FUNCTION(winapi_based_event(winapi_based_event const&))
Chris@16:     BOOST_DELETED_FUNCTION(winapi_based_event& operator= (winapi_based_event const&))
Chris@16: };
Chris@16: 
Chris@16: typedef winapi_based_event event;
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: class generic_event
Chris@16: {
Chris@16: private:
Chris@16:     boost::mutex m_mutex;
Chris@16:     boost::condition_variable m_cond;
Chris@16:     bool m_state;
Chris@16: 
Chris@16: public:
Chris@16:     //! Default constructor
Chris@16:     BOOST_LOG_API generic_event();
Chris@16:     //! Destructor
Chris@16:     BOOST_LOG_API ~generic_event();
Chris@16: 
Chris@16:     //! Waits for the object to become signalled
Chris@16:     BOOST_LOG_API void wait();
Chris@16:     //! Sets the object to a signalled state
Chris@16:     BOOST_LOG_API void set_signalled();
Chris@16: 
Chris@16:     //  Copying prohibited
Chris@16:     BOOST_DELETED_FUNCTION(generic_event(generic_event const&))
Chris@16:     BOOST_DELETED_FUNCTION(generic_event& operator= (generic_event const&))
Chris@16: };
Chris@16: 
Chris@16: typedef generic_event event;
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: } // namespace aux
Chris@16: 
Chris@16: BOOST_LOG_CLOSE_NAMESPACE // namespace log
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_NO_THREADS
Chris@16: 
Chris@16: #endif // BOOST_LOG_DETAIL_EVENT_HPP_INCLUDED_