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130 lines
3.8 KiB
C++
130 lines
3.8 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTERPROCESS_DETAIL_WINDOWS_CONDITION_HPP
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#define BOOST_INTERPROCESS_DETAIL_WINDOWS_CONDITION_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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#include <boost/interprocess/detail/posix_time_types_wrk.hpp>
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#include <boost/interprocess/sync/interprocess_mutex.hpp>
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#include <boost/interprocess/sync/scoped_lock.hpp>
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#include <boost/interprocess/exceptions.hpp>
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#include <boost/interprocess/sync/windows/semaphore.hpp>
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#include <boost/interprocess/sync/windows/mutex.hpp>
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#include <boost/interprocess/sync/detail/condition_algorithm_8a.hpp>
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namespace boost {
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namespace interprocess {
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namespace ipcdetail {
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class windows_condition
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{
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windows_condition(const windows_condition &);
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windows_condition &operator=(const windows_condition &);
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public:
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windows_condition()
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: m_condition_data()
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{}
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~windows_condition()
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{
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//Notify all waiting threads
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//to allow POSIX semantics on condition destruction
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this->notify_all();
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}
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void notify_one()
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{ m_condition_data.notify_one(); }
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void notify_all()
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{ m_condition_data.notify_all(); }
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template <typename L>
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bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time)
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{ return m_condition_data.timed_wait(lock, abs_time); }
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template <typename L, typename Pr>
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bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time, Pr pred)
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{ return m_condition_data.timed_wait(lock, abs_time, pred); }
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template <typename L>
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void wait(L& lock)
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{ m_condition_data.wait(lock); }
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template <typename L, typename Pr>
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void wait(L& lock, Pr pred)
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{ m_condition_data.wait(lock, pred); }
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private:
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struct condition_data
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{
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typedef boost::int32_t integer_type;
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typedef windows_semaphore semaphore_type;
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typedef windows_mutex mutex_type;
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condition_data()
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: m_nwaiters_blocked(0)
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, m_nwaiters_gone(0)
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, m_nwaiters_to_unblock(0)
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, m_sem_block_queue(0)
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, m_sem_block_lock(1)
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, m_mtx_unblock_lock()
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{}
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integer_type &get_nwaiters_blocked()
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{ return m_nwaiters_blocked; }
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integer_type &get_nwaiters_gone()
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{ return m_nwaiters_gone; }
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integer_type &get_nwaiters_to_unblock()
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{ return m_nwaiters_to_unblock; }
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semaphore_type &get_sem_block_queue()
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{ return m_sem_block_queue; }
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semaphore_type &get_sem_block_lock()
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{ return m_sem_block_lock; }
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mutex_type &get_mtx_unblock_lock()
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{ return m_mtx_unblock_lock; }
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boost::int32_t m_nwaiters_blocked;
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boost::int32_t m_nwaiters_gone;
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boost::int32_t m_nwaiters_to_unblock;
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windows_semaphore m_sem_block_queue;
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windows_semaphore m_sem_block_lock;
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windows_mutex m_mtx_unblock_lock;
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};
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ipcdetail::condition_8a_wrapper<condition_data> m_condition_data;
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};
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} //namespace ipcdetail
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} //namespace interprocess
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} //namespace boost
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#include <boost/interprocess/detail/config_end.hpp>
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#endif //BOOST_INTERPROCESS_DETAIL_WINDOWS_CONDITION_HPP
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