Chris@16: //
Chris@16: // detail/wrapped_handler.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_WRAPPED_HANDLER_HPP
Chris@16: #define BOOST_ASIO_DETAIL_WRAPPED_HANDLER_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/bind_handler.hpp>
Chris@16: #include <boost/asio/detail/handler_alloc_helpers.hpp>
Chris@16: #include <boost/asio/detail/handler_cont_helpers.hpp>
Chris@16: #include <boost/asio/detail/handler_invoke_helpers.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: struct is_continuation_delegated
Chris@16: {
Chris@16:   template <typename Dispatcher, typename Handler>
Chris@16:   bool operator()(Dispatcher&, Handler& handler) const
Chris@16:   {
Chris@16:     return boost_asio_handler_cont_helpers::is_continuation(handler);
Chris@16:   }
Chris@16: };
Chris@16: 
Chris@16: struct is_continuation_if_running
Chris@16: {
Chris@16:   template <typename Dispatcher, typename Handler>
Chris@16:   bool operator()(Dispatcher& dispatcher, Handler&) const
Chris@16:   {
Chris@16:     return dispatcher.running_in_this_thread();
Chris@16:   }
Chris@16: };
Chris@16: 
Chris@16: template <typename Dispatcher, typename Handler,
Chris@16:     typename IsContinuation = is_continuation_delegated>
Chris@16: class wrapped_handler
Chris@16: {
Chris@16: public:
Chris@16:   typedef void result_type;
Chris@16: 
Chris@16:   wrapped_handler(Dispatcher dispatcher, Handler& handler)
Chris@16:     : dispatcher_(dispatcher),
Chris@16:       handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler))
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16:   wrapped_handler(const wrapped_handler& other)
Chris@16:     : dispatcher_(other.dispatcher_),
Chris@16:       handler_(other.handler_)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   wrapped_handler(wrapped_handler&& other)
Chris@16:     : dispatcher_(other.dispatcher_),
Chris@16:       handler_(BOOST_ASIO_MOVE_CAST(Handler)(other.handler_))
Chris@16:   {
Chris@16:   }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16:   void operator()()
Chris@16:   {
Chris@16:     dispatcher_.dispatch(BOOST_ASIO_MOVE_CAST(Handler)(handler_));
Chris@16:   }
Chris@16: 
Chris@16:   void operator()() const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(handler_);
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1>
Chris@16:   void operator()(const Arg1& arg1)
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1>
Chris@16:   void operator()(const Arg1& arg1) const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2)
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2) const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3)
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
Chris@16:       const Arg4& arg4)
Chris@16:   {
Chris@16:     dispatcher_.dispatch(
Chris@16:         detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
Chris@16:       const Arg4& arg4) const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(
Chris@16:         detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
Chris@16:       typename Arg5>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
Chris@16:       const Arg4& arg4, const Arg5& arg5)
Chris@16:   {
Chris@16:     dispatcher_.dispatch(
Chris@16:         detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
Chris@16:   }
Chris@16: 
Chris@16:   template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
Chris@16:       typename Arg5>
Chris@16:   void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
Chris@16:       const Arg4& arg4, const Arg5& arg5) const
Chris@16:   {
Chris@16:     dispatcher_.dispatch(
Chris@16:         detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
Chris@16:   }
Chris@16: 
Chris@16: //private:
Chris@16:   Dispatcher dispatcher_;
Chris@16:   Handler handler_;
Chris@16: };
Chris@16: 
Chris@16: template <typename Handler, typename Context>
Chris@16: class rewrapped_handler
Chris@16: {
Chris@16: public:
Chris@16:   explicit rewrapped_handler(Handler& handler, const Context& context)
Chris@16:     : context_(context),
Chris@16:       handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler))
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   explicit rewrapped_handler(const Handler& handler, const Context& context)
Chris@16:     : context_(context),
Chris@16:       handler_(handler)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16:   rewrapped_handler(const rewrapped_handler& other)
Chris@16:     : context_(other.context_),
Chris@16:       handler_(other.handler_)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   rewrapped_handler(rewrapped_handler&& other)
Chris@16:     : context_(BOOST_ASIO_MOVE_CAST(Context)(other.context_)),
Chris@16:       handler_(BOOST_ASIO_MOVE_CAST(Handler)(other.handler_))
Chris@16:   {
Chris@16:   }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16:   void operator()()
Chris@16:   {
Chris@16:     handler_();
Chris@16:   }
Chris@16: 
Chris@16:   void operator()() const
Chris@16:   {
Chris@16:     handler_();
Chris@16:   }
Chris@16: 
Chris@16: //private:
Chris@16:   Context context_;
Chris@16:   Handler handler_;
Chris@16: };
Chris@16: 
Chris@16: template <typename Dispatcher, typename Handler, typename IsContinuation>
Chris@16: inline void* asio_handler_allocate(std::size_t size,
Chris@16:     wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
Chris@16: {
Chris@16:   return boost_asio_handler_alloc_helpers::allocate(
Chris@16:       size, this_handler->handler_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Dispatcher, typename Handler, typename IsContinuation>
Chris@16: inline void asio_handler_deallocate(void* pointer, std::size_t size,
Chris@16:     wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
Chris@16: {
Chris@16:   boost_asio_handler_alloc_helpers::deallocate(
Chris@16:       pointer, size, this_handler->handler_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Dispatcher, typename Handler, typename IsContinuation>
Chris@16: inline bool asio_handler_is_continuation(
Chris@16:     wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
Chris@16: {
Chris@16:   return IsContinuation()(this_handler->dispatcher_, this_handler->handler_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Function, typename Dispatcher,
Chris@16:     typename Handler, typename IsContinuation>
Chris@16: inline void asio_handler_invoke(Function& function,
Chris@16:     wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
Chris@16: {
Chris@16:   this_handler->dispatcher_.dispatch(
Chris@16:       rewrapped_handler<Function, Handler>(
Chris@16:         function, this_handler->handler_));
Chris@16: }
Chris@16: 
Chris@16: template <typename Function, typename Dispatcher,
Chris@16:     typename Handler, typename IsContinuation>
Chris@16: inline void asio_handler_invoke(const Function& function,
Chris@16:     wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
Chris@16: {
Chris@16:   this_handler->dispatcher_.dispatch(
Chris@16:       rewrapped_handler<Function, Handler>(
Chris@16:         function, this_handler->handler_));
Chris@16: }
Chris@16: 
Chris@16: template <typename Handler, typename Context>
Chris@16: inline void* asio_handler_allocate(std::size_t size,
Chris@16:     rewrapped_handler<Handler, Context>* this_handler)
Chris@16: {
Chris@16:   return boost_asio_handler_alloc_helpers::allocate(
Chris@16:       size, this_handler->context_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Handler, typename Context>
Chris@16: inline void asio_handler_deallocate(void* pointer, std::size_t size,
Chris@16:     rewrapped_handler<Handler, Context>* this_handler)
Chris@16: {
Chris@16:   boost_asio_handler_alloc_helpers::deallocate(
Chris@16:       pointer, size, this_handler->context_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Dispatcher, typename Context>
Chris@16: inline bool asio_handler_is_continuation(
Chris@16:     rewrapped_handler<Dispatcher, Context>* this_handler)
Chris@16: {
Chris@16:   return boost_asio_handler_cont_helpers::is_continuation(
Chris@101:       this_handler->context_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Function, typename Handler, typename Context>
Chris@16: inline void asio_handler_invoke(Function& function,
Chris@16:     rewrapped_handler<Handler, Context>* this_handler)
Chris@16: {
Chris@16:   boost_asio_handler_invoke_helpers::invoke(
Chris@16:       function, this_handler->context_);
Chris@16: }
Chris@16: 
Chris@16: template <typename Function, typename Handler, typename Context>
Chris@16: inline void asio_handler_invoke(const Function& function,
Chris@16:     rewrapped_handler<Handler, Context>* this_handler)
Chris@16: {
Chris@16:   boost_asio_handler_invoke_helpers::invoke(
Chris@16:       function, this_handler->context_);
Chris@16: }
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_WRAPPED_HANDLER_HPP