104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
|
//
|
||
|
|
// win_event.hpp
|
||
|
|
// ~~~~~~~~~~~~~
|
||
|
|
//
|
||
|
|
// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
|
||
|
|
//
|
||
|
|
// 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)
|
||
|
|
//
|
||
|
|
|
||
|
|
#ifndef ASIO_DETAIL_WIN_EVENT_HPP
|
||
|
|
#define ASIO_DETAIL_WIN_EVENT_HPP
|
||
|
|
|
||
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
# pragma once
|
||
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
#include <boost/config.hpp>
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#if defined(BOOST_WINDOWS)
|
||
|
|
|
||
|
|
#include "asio/error.hpp"
|
||
|
|
#include "asio/system_error.hpp"
|
||
|
|
#include "asio/detail/noncopyable.hpp"
|
||
|
|
#include "asio/detail/socket_types.hpp"
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
#include <boost/assert.hpp>
|
||
|
|
#include <boost/throw_exception.hpp>
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
namespace asio {
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
class win_event
|
||
|
|
: private noncopyable
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
// Constructor.
|
||
|
|
win_event()
|
||
|
|
: event_(::CreateEvent(0, true, false, 0))
|
||
|
|
{
|
||
|
|
if (!event_)
|
||
|
|
{
|
||
|
|
DWORD last_error = ::GetLastError();
|
||
|
|
asio::system_error e(
|
||
|
|
asio::error_code(last_error,
|
||
|
|
asio::error::get_system_category()),
|
||
|
|
"event");
|
||
|
|
boost::throw_exception(e);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Destructor.
|
||
|
|
~win_event()
|
||
|
|
{
|
||
|
|
::CloseHandle(event_);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Signal the event.
|
||
|
|
template <typename Lock>
|
||
|
|
void signal(Lock& lock)
|
||
|
|
{
|
||
|
|
BOOST_ASSERT(lock.locked());
|
||
|
|
(void)lock;
|
||
|
|
::SetEvent(event_);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Reset the event.
|
||
|
|
template <typename Lock>
|
||
|
|
void clear(Lock& lock)
|
||
|
|
{
|
||
|
|
BOOST_ASSERT(lock.locked());
|
||
|
|
(void)lock;
|
||
|
|
::ResetEvent(event_);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Wait for the event to become signalled.
|
||
|
|
template <typename Lock>
|
||
|
|
void wait(Lock& lock)
|
||
|
|
{
|
||
|
|
BOOST_ASSERT(lock.locked());
|
||
|
|
lock.unlock();
|
||
|
|
::WaitForSingleObject(event_, INFINITE);
|
||
|
|
lock.lock();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
HANDLE event_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
} // namespace asio
|
||
|
|
|
||
|
|
#endif // defined(BOOST_WINDOWS)
|
||
|
|
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#endif // ASIO_DETAIL_WIN_EVENT_HPP
|