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