82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
|
//
|
||
|
|
// win_iocp_operation.hpp
|
||
|
|
// ~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
//
|
||
|
|
// Copyright (c) 2003-2006 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_IOCP_OPERATION_HPP
|
||
|
|
#define ASIO_DETAIL_WIN_IOCP_OPERATION_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/win_iocp_io_service_fwd.hpp"
|
||
|
|
|
||
|
|
#if defined(ASIO_HAS_IOCP)
|
||
|
|
|
||
|
|
#include "asio/detail/socket_types.hpp"
|
||
|
|
|
||
|
|
namespace asio {
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
// Base class for all IOCP operations. A function pointer is used instead of
|
||
|
|
// virtual functions to avoid the associated overhead.
|
||
|
|
//
|
||
|
|
// This class inherits from OVERLAPPED so that we can downcast to get back to
|
||
|
|
// the win_iocp_operation pointer from the LPOVERLAPPED out parameter of
|
||
|
|
// GetQueuedCompletionStatus.
|
||
|
|
struct win_iocp_operation
|
||
|
|
: public OVERLAPPED
|
||
|
|
{
|
||
|
|
typedef void (*invoke_func_type)(win_iocp_operation*, DWORD, size_t);
|
||
|
|
typedef void (*destroy_func_type)(win_iocp_operation*);
|
||
|
|
|
||
|
|
win_iocp_operation(invoke_func_type invoke_func,
|
||
|
|
destroy_func_type destroy_func)
|
||
|
|
: invoke_func_(invoke_func),
|
||
|
|
destroy_func_(destroy_func)
|
||
|
|
{
|
||
|
|
Internal = 0;
|
||
|
|
InternalHigh = 0;
|
||
|
|
Offset = 0;
|
||
|
|
OffsetHigh = 0;
|
||
|
|
hEvent = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void do_completion(DWORD last_error, size_t bytes_transferred)
|
||
|
|
{
|
||
|
|
invoke_func_(this, last_error, bytes_transferred);
|
||
|
|
}
|
||
|
|
|
||
|
|
void destroy()
|
||
|
|
{
|
||
|
|
destroy_func_(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
// Prevent deletion through this type.
|
||
|
|
~win_iocp_operation()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
invoke_func_type invoke_func_;
|
||
|
|
destroy_func_type destroy_func_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
} // namespace asio
|
||
|
|
|
||
|
|
#endif // defined(ASIO_HAS_IOCP)
|
||
|
|
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#endif // ASIO_DETAIL_WIN_IOCP_OPERATION_HPP
|