10ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// 20ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// detail/reactive_socket_recv_op.hpp 30ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 40ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// 50ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) 60ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// 70ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// Distributed under the Boost Software License, Version 1.0. (See accompanying 80ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 90ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie// 100ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 110ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP 120ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#define ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP 130ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 140ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 150ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/config.hpp" 160ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/addressof.hpp" 170ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/bind_handler.hpp" 180ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/buffer_sequence_adapter.hpp" 190ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/fenced_block.hpp" 200ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/reactor_op.hpp" 210ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/socket_ops.hpp" 220ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 230ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/push_options.hpp" 240ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 250ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffienamespace asio { 260ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffienamespace detail { 270ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 280ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffietemplate <typename MutableBufferSequence> 290ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffieclass reactive_socket_recv_op_base : public reactor_op 300ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie{ 310ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffiepublic: 320ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie reactive_socket_recv_op_base(socket_type socket, 330ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_ops::state_type state, const MutableBufferSequence& buffers, 340ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_base::message_flags flags, func_type complete_func) 350ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie : reactor_op(&reactive_socket_recv_op_base::do_perform, complete_func), 360ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_(socket), 370ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie state_(state), 380ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie buffers_(buffers), 390ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie flags_(flags) 400ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie { 410ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie } 420ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 430ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie static bool do_perform(reactor_op* base) 440ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie { 450ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie reactive_socket_recv_op_base* o( 460ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie static_cast<reactive_socket_recv_op_base*>(base)); 470ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 480ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie buffer_sequence_adapter<asio::mutable_buffer, 490ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie MutableBufferSequence> bufs(o->buffers_); 500ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 510ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie return socket_ops::non_blocking_recv(o->socket_, 520ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie bufs.buffers(), bufs.count(), o->flags_, 530ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie (o->state_ & socket_ops::stream_oriented) != 0, 540ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie o->ec_, o->bytes_transferred_); 550ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie } 560ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 570ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffieprivate: 580ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_type socket_; 590ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_ops::state_type state_; 600ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie MutableBufferSequence buffers_; 610ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_base::message_flags flags_; 620ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie}; 630ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 640ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffietemplate <typename MutableBufferSequence, typename Handler> 650ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffieclass reactive_socket_recv_op : 660ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie public reactive_socket_recv_op_base<MutableBufferSequence> 670ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie{ 680ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffiepublic: 690ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie ASIO_DEFINE_HANDLER_PTR(reactive_socket_recv_op); 700ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 710ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie reactive_socket_recv_op(socket_type socket, 720ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_ops::state_type state, const MutableBufferSequence& buffers, 730ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie socket_base::message_flags flags, Handler& handler) 740ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie : reactive_socket_recv_op_base<MutableBufferSequence>(socket, state, 750ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie buffers, flags, &reactive_socket_recv_op::do_complete), 760ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie handler_(ASIO_MOVE_CAST(Handler)(handler)) 770ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie { 780ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie } 790ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 800ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie static void do_complete(io_service_impl* owner, operation* base, 810ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie const asio::error_code& /*ec*/, 820ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie std::size_t /*bytes_transferred*/) 830ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie { 840ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // Take ownership of the handler object. 850ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie reactive_socket_recv_op* o(static_cast<reactive_socket_recv_op*>(base)); 860ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie ptr p = { asio::detail::addressof(o->handler_), o, o }; 870ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 880ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie ASIO_HANDLER_COMPLETION((o)); 890ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 900ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // Make a copy of the handler so that the memory can be deallocated before 910ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // the upcall is made. Even if we're not about to make an upcall, a 920ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // sub-object of the handler may be the true owner of the memory associated 930ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // with the handler. Consequently, a local copy of the handler is required 940ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // to ensure that any owning sub-object remains valid until after we have 950ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // deallocated the memory here. 960ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie detail::binder2<Handler, asio::error_code, std::size_t> 970ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie handler(o->handler_, o->ec_, o->bytes_transferred_); 980ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie p.h = asio::detail::addressof(handler.handler_); 990ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie p.reset(); 1000ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 1010ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie // Make the upcall if required. 1020ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie if (owner) 1030ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie { 1040ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie fenced_block b(fenced_block::half); 1050ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_)); 1060ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie asio_handler_invoke_helpers::invoke(handler, handler.handler_); 1070ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie ASIO_HANDLER_INVOCATION_END; 1080ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie } 1090ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie } 1100ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 1110ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffieprivate: 1120ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie Handler handler_; 1130ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie}; 1140ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 1150ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie} // namespace detail 1160ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie} // namespace asio 1170ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 1180ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#include "asio/detail/pop_options.hpp" 1190ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie 1200ee85db398be8ea33d67cc42f99a1468cd6c8180François Gaffie#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP 121