| // |
| // deadline_timer_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_DEADLINE_TIMER_SERVICE_HPP |
| #define ASIO_DEADLINE_TIMER_SERVICE_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_ENABLE_OLD_SERVICES) |
| |
| #if defined(ASIO_HAS_BOOST_DATE_TIME) \ |
| || defined(GENERATING_DOCUMENTATION) |
| |
| #include <cstddef> |
| #include "asio/async_result.hpp" |
| #include "asio/detail/deadline_timer_service.hpp" |
| #include "asio/io_context.hpp" |
| #include "asio/time_traits.hpp" |
| |
| #include "asio/detail/push_options.hpp" |
| |
| namespace asio { |
| |
| /// Default service implementation for a timer. |
| template <typename TimeType, |
| typename TimeTraits = asio::time_traits<TimeType> > |
| class deadline_timer_service |
| #if defined(GENERATING_DOCUMENTATION) |
| : public asio::io_context::service |
| #else |
| : public asio::detail::service_base< |
| deadline_timer_service<TimeType, TimeTraits> > |
| #endif |
| { |
| public: |
| #if defined(GENERATING_DOCUMENTATION) |
| /// The unique service identifier. |
| static asio::io_context::id id; |
| #endif |
| |
| /// The time traits type. |
| typedef TimeTraits traits_type; |
| |
| /// The time type. |
| typedef typename traits_type::time_type time_type; |
| |
| /// The duration type. |
| typedef typename traits_type::duration_type duration_type; |
| |
| private: |
| // The type of the platform-specific implementation. |
| typedef detail::deadline_timer_service<traits_type> service_impl_type; |
| |
| public: |
| /// The implementation type of the deadline timer. |
| #if defined(GENERATING_DOCUMENTATION) |
| typedef implementation_defined implementation_type; |
| #else |
| typedef typename service_impl_type::implementation_type implementation_type; |
| #endif |
| |
| /// Construct a new timer service for the specified io_context. |
| explicit deadline_timer_service(asio::io_context& io_context) |
| : asio::detail::service_base< |
| deadline_timer_service<TimeType, TimeTraits> >(io_context), |
| service_impl_(io_context) |
| { |
| } |
| |
| /// Construct a new timer implementation. |
| void construct(implementation_type& impl) |
| { |
| service_impl_.construct(impl); |
| } |
| |
| /// Destroy a timer implementation. |
| void destroy(implementation_type& impl) |
| { |
| service_impl_.destroy(impl); |
| } |
| |
| /// Cancel any asynchronous wait operations associated with the timer. |
| std::size_t cancel(implementation_type& impl, asio::error_code& ec) |
| { |
| return service_impl_.cancel(impl, ec); |
| } |
| |
| /// Cancels one asynchronous wait operation associated with the timer. |
| std::size_t cancel_one(implementation_type& impl, |
| asio::error_code& ec) |
| { |
| return service_impl_.cancel_one(impl, ec); |
| } |
| |
| /// Get the expiry time for the timer as an absolute time. |
| time_type expires_at(const implementation_type& impl) const |
| { |
| return service_impl_.expiry(impl); |
| } |
| |
| /// Set the expiry time for the timer as an absolute time. |
| std::size_t expires_at(implementation_type& impl, |
| const time_type& expiry_time, asio::error_code& ec) |
| { |
| return service_impl_.expires_at(impl, expiry_time, ec); |
| } |
| |
| /// Get the expiry time for the timer relative to now. |
| duration_type expires_from_now(const implementation_type& impl) const |
| { |
| return TimeTraits::subtract(service_impl_.expiry(impl), TimeTraits::now()); |
| } |
| |
| /// Set the expiry time for the timer relative to now. |
| std::size_t expires_from_now(implementation_type& impl, |
| const duration_type& expiry_time, asio::error_code& ec) |
| { |
| return service_impl_.expires_after(impl, expiry_time, ec); |
| } |
| |
| // Perform a blocking wait on the timer. |
| void wait(implementation_type& impl, asio::error_code& ec) |
| { |
| service_impl_.wait(impl, ec); |
| } |
| |
| // Start an asynchronous wait on the timer. |
| template <typename WaitHandler> |
| ASIO_INITFN_RESULT_TYPE(WaitHandler, |
| void (asio::error_code)) |
| async_wait(implementation_type& impl, |
| ASIO_MOVE_ARG(WaitHandler) handler) |
| { |
| async_completion<WaitHandler, |
| void (asio::error_code)> init(handler); |
| |
| service_impl_.async_wait(impl, init.completion_handler); |
| |
| return init.result.get(); |
| } |
| |
| private: |
| // Destroy all user-defined handler objects owned by the service. |
| void shutdown() |
| { |
| service_impl_.shutdown(); |
| } |
| |
| // The platform-specific implementation. |
| service_impl_type service_impl_; |
| }; |
| |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #endif // defined(ASIO_HAS_BOOST_DATE_TIME) |
| // || defined(GENERATING_DOCUMENTATION) |
| |
| #endif // defined(ASIO_ENABLE_OLD_SERVICES) |
| |
| #endif // ASIO_DEADLINE_TIMER_SERVICE_HPP |