85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
//
|
|
// detail/io_uring_operation.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2023 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_IO_URING_OPERATION_HPP
|
|
#define ASIO_DETAIL_IO_URING_OPERATION_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include "asio/detail/config.hpp"
|
|
|
|
#if defined(ASIO_HAS_IO_URING)
|
|
|
|
#include <liburing.h>
|
|
#include "asio/detail/cstdint.hpp"
|
|
#include "asio/detail/operation.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
class io_uring_operation
|
|
: public operation
|
|
{
|
|
public:
|
|
// The error code to be passed to the completion handler.
|
|
asio::error_code ec_;
|
|
|
|
// The number of bytes transferred, to be passed to the completion handler.
|
|
std::size_t bytes_transferred_;
|
|
|
|
// The operation key used for targeted cancellation.
|
|
void* cancellation_key_;
|
|
|
|
// Prepare the operation.
|
|
void prepare(::io_uring_sqe* sqe)
|
|
{
|
|
return prepare_func_(this, sqe);
|
|
}
|
|
|
|
// Perform actions associated with the operation. Returns true when complete.
|
|
bool perform(bool after_completion)
|
|
{
|
|
return perform_func_(this, after_completion);
|
|
}
|
|
|
|
protected:
|
|
typedef void (*prepare_func_type)(io_uring_operation*, ::io_uring_sqe*);
|
|
typedef bool (*perform_func_type)(io_uring_operation*, bool);
|
|
|
|
io_uring_operation(const asio::error_code& success_ec,
|
|
prepare_func_type prepare_func, perform_func_type perform_func,
|
|
func_type complete_func)
|
|
: operation(complete_func),
|
|
ec_(success_ec),
|
|
bytes_transferred_(0),
|
|
cancellation_key_(0),
|
|
prepare_func_(prepare_func),
|
|
perform_func_(perform_func)
|
|
{
|
|
}
|
|
|
|
private:
|
|
prepare_func_type prepare_func_;
|
|
perform_func_type perform_func_;
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace asio
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#endif // defined(ASIO_HAS_IO_URING)
|
|
|
|
#endif // ASIO_DETAIL_IO_URING_OPERATION_HPP
|