asio/detail/signal_op.hpp

0001 //
0002 // detail/signal_op.hpp
0003 // ~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_SIGNAL_OP_HPP
0012 #define BOOST_ASIO_DETAIL_SIGNAL_OP_HPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019 #include <boost/asio/detail/operation.hpp>
0020
0021 #include <boost/asio/detail/push_options.hpp>
0022
0023 namespace boost {
0024 namespace asio {
0025 namespace detail {
0026
0027 class signal_op
0028   : public operation
0029 {
0030 public:
0031   // The error code to be passed to the completion handler.
0032   boost::system::error_code ec_;
0033
0034   // The operation key used for targeted cancellation.
0035   void* cancellation_key_;
0036
0037   // The signal number to be passed to the completion handler.
0038   int signal_number_;
0039
0040 protected:
0041   signal_op(func_type func)
0042     : operation(func),
0043       cancellation_key_(0),
0044       signal_number_(0)
0045   {
0046   }
0047 };
0048
0049 } // namespace detail
0050 } // namespace asio
0051 } // namespace boost
0052
0053 #include <boost/asio/detail/pop_options.hpp>
0054
0055 #endif // BOOST_ASIO_DETAIL_SIGNAL_OP_HPP