| // |
| // signal_set_service.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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_SIGNAL_SET_SERVICE_HPP |
| #define ASIO_SIGNAL_SET_SERVICE_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include "asio/detail/config.hpp" |
| #include "asio/async_result.hpp" |
| #include "asio/detail/signal_set_service.hpp" |
| #include "asio/error.hpp" |
| #include "asio/io_context.hpp" |
| |
| #include "asio/detail/push_options.hpp" |
| |
| namespace asio { |
| |
| /// Default service implementation for a signal set. |
| class signal_set_service |
| #if defined(GENERATING_DOCUMENTATION) |
| : public asio::io_context::service |
| #else |
| : public asio::detail::service_base<signal_set_service> |
| #endif |
| { |
| public: |
| #if defined(GENERATING_DOCUMENTATION) |
| /// The unique service identifier. |
| static asio::io_context::id id; |
| #endif |
| |
| public: |
| /// The type of a signal set implementation. |
| #if defined(GENERATING_DOCUMENTATION) |
| typedef implementation_defined implementation_type; |
| #else |
| typedef detail::signal_set_service::implementation_type implementation_type; |
| #endif |
| |
| /// Construct a new signal set service for the specified io_context. |
| explicit signal_set_service(asio::io_context& io_context) |
| : asio::detail::service_base<signal_set_service>(io_context), |
| service_impl_(io_context) |
| { |
| } |
| |
| /// Construct a new signal set implementation. |
| void construct(implementation_type& impl) |
| { |
| service_impl_.construct(impl); |
| } |
| |
| /// Destroy a signal set implementation. |
| void destroy(implementation_type& impl) |
| { |
| service_impl_.destroy(impl); |
| } |
| |
| /// Add a signal to a signal_set. |
| asio::error_code add(implementation_type& impl, |
| int signal_number, asio::error_code& ec) |
| { |
| return service_impl_.add(impl, signal_number, ec); |
| } |
| |
| /// Remove a signal to a signal_set. |
| asio::error_code remove(implementation_type& impl, |
| int signal_number, asio::error_code& ec) |
| { |
| return service_impl_.remove(impl, signal_number, ec); |
| } |
| |
| /// Remove all signals from a signal_set. |
| asio::error_code clear(implementation_type& impl, |
| asio::error_code& ec) |
| { |
| return service_impl_.clear(impl, ec); |
| } |
| |
| /// Cancel all operations associated with the signal set. |
| asio::error_code cancel(implementation_type& impl, |
| asio::error_code& ec) |
| { |
| return service_impl_.cancel(impl, ec); |
| } |
| |
| // Start an asynchronous operation to wait for a signal to be delivered. |
| template <typename SignalHandler> |
| ASIO_INITFN_RESULT_TYPE(SignalHandler, |
| void (asio::error_code, int)) |
| async_wait(implementation_type& impl, |
| ASIO_MOVE_ARG(SignalHandler) handler) |
| { |
| async_completion<SignalHandler, |
| void (asio::error_code, int)> init(handler); |
| |
| service_impl_.async_wait(impl, init.handler); |
| |
| return init.result.get(); |
| } |
| |
| private: |
| // Destroy all user-defined handler objects owned by the service. |
| void shutdown() |
| { |
| service_impl_.shutdown(); |
| } |
| |
| // Perform any fork-related housekeeping. |
| void notify_fork(asio::io_context::fork_event event) |
| { |
| service_impl_.notify_fork(event); |
| } |
| |
| // The platform-specific implementation. |
| detail::signal_set_service service_impl_; |
| }; |
| |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #endif // ASIO_SIGNAL_SET_SERVICE_HPP |