From e95946831f8ef53d29590735a2df661385edb008 Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Mon, 6 Aug 2018 10:35:22 +0200 Subject: Replace boost by the standalone asio library --- lib/asio/detail/reactive_socket_accept_op.hpp | 217 ++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 lib/asio/detail/reactive_socket_accept_op.hpp (limited to 'lib/asio/detail/reactive_socket_accept_op.hpp') diff --git a/lib/asio/detail/reactive_socket_accept_op.hpp b/lib/asio/detail/reactive_socket_accept_op.hpp new file mode 100644 index 0000000..4a98f04 --- /dev/null +++ b/lib/asio/detail/reactive_socket_accept_op.hpp @@ -0,0 +1,217 @@ +// +// detail/reactive_socket_accept_op.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP +#define ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/config.hpp" +#include "asio/detail/bind_handler.hpp" +#include "asio/detail/buffer_sequence_adapter.hpp" +#include "asio/detail/fenced_block.hpp" +#include "asio/detail/memory.hpp" +#include "asio/detail/reactor_op.hpp" +#include "asio/detail/socket_holder.hpp" +#include "asio/detail/socket_ops.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace detail { + +template +class reactive_socket_accept_op_base : public reactor_op +{ +public: + reactive_socket_accept_op_base(socket_type socket, + socket_ops::state_type state, Socket& peer, const Protocol& protocol, + typename Protocol::endpoint* peer_endpoint, func_type complete_func) + : reactor_op(&reactive_socket_accept_op_base::do_perform, complete_func), + socket_(socket), + state_(state), + peer_(peer), + protocol_(protocol), + peer_endpoint_(peer_endpoint), + addrlen_(peer_endpoint ? peer_endpoint->capacity() : 0) + { + } + + static status do_perform(reactor_op* base) + { + reactive_socket_accept_op_base* o( + static_cast(base)); + + socket_type new_socket = invalid_socket; + status result = socket_ops::non_blocking_accept(o->socket_, + o->state_, o->peer_endpoint_ ? o->peer_endpoint_->data() : 0, + o->peer_endpoint_ ? &o->addrlen_ : 0, o->ec_, new_socket) + ? done : not_done; + o->new_socket_.reset(new_socket); + + ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_accept", o->ec_)); + + return result; + } + + void do_assign() + { + if (new_socket_.get() != invalid_socket) + { + if (peer_endpoint_) + peer_endpoint_->resize(addrlen_); + peer_.assign(protocol_, new_socket_.get(), ec_); + if (!ec_) + new_socket_.release(); + } + } + +private: + socket_type socket_; + socket_ops::state_type state_; + socket_holder new_socket_; + Socket& peer_; + Protocol protocol_; + typename Protocol::endpoint* peer_endpoint_; + std::size_t addrlen_; +}; + +template +class reactive_socket_accept_op : + public reactive_socket_accept_op_base +{ +public: + ASIO_DEFINE_HANDLER_PTR(reactive_socket_accept_op); + + reactive_socket_accept_op(socket_type socket, + socket_ops::state_type state, Socket& peer, const Protocol& protocol, + typename Protocol::endpoint* peer_endpoint, Handler& handler) + : reactive_socket_accept_op_base(socket, state, peer, + protocol, peer_endpoint, &reactive_socket_accept_op::do_complete), + handler_(ASIO_MOVE_CAST(Handler)(handler)) + { + handler_work::start(handler_); + } + + static void do_complete(void* owner, operation* base, + const asio::error_code& /*ec*/, + std::size_t /*bytes_transferred*/) + { + // Take ownership of the handler object. + reactive_socket_accept_op* o(static_cast(base)); + ptr p = { asio::detail::addressof(o->handler_), o, o }; + handler_work w(o->handler_); + + // On success, assign new connection to peer socket object. + if (owner) + o->do_assign(); + + ASIO_HANDLER_COMPLETION((*o)); + + // Make a copy of the handler so that the memory can be deallocated before + // the upcall is made. Even if we're not about to make an upcall, a + // sub-object of the handler may be the true owner of the memory associated + // with the handler. Consequently, a local copy of the handler is required + // to ensure that any owning sub-object remains valid until after we have + // deallocated the memory here. + detail::binder1 + handler(o->handler_, o->ec_); + p.h = asio::detail::addressof(handler.handler_); + p.reset(); + + // Make the upcall if required. + if (owner) + { + fenced_block b(fenced_block::half); + ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); + w.complete(handler, handler.handler_); + ASIO_HANDLER_INVOCATION_END; + } + } + +private: + Handler handler_; +}; + +#if defined(ASIO_HAS_MOVE) + +template +class reactive_socket_move_accept_op : + private Protocol::socket, + public reactive_socket_accept_op_base +{ +public: + ASIO_DEFINE_HANDLER_PTR(reactive_socket_move_accept_op); + + reactive_socket_move_accept_op(io_context& ioc, socket_type socket, + socket_ops::state_type state, const Protocol& protocol, + typename Protocol::endpoint* peer_endpoint, Handler& handler) + : Protocol::socket(ioc), + reactive_socket_accept_op_base( + socket, state, *this, protocol, peer_endpoint, + &reactive_socket_move_accept_op::do_complete), + handler_(ASIO_MOVE_CAST(Handler)(handler)) + { + handler_work::start(handler_); + } + + static void do_complete(void* owner, operation* base, + const asio::error_code& /*ec*/, + std::size_t /*bytes_transferred*/) + { + // Take ownership of the handler object. + reactive_socket_move_accept_op* o( + static_cast(base)); + ptr p = { asio::detail::addressof(o->handler_), o, o }; + handler_work w(o->handler_); + + // On success, assign new connection to peer socket object. + if (owner) + o->do_assign(); + + ASIO_HANDLER_COMPLETION((*o)); + + // Make a copy of the handler so that the memory can be deallocated before + // the upcall is made. Even if we're not about to make an upcall, a + // sub-object of the handler may be the true owner of the memory associated + // with the handler. Consequently, a local copy of the handler is required + // to ensure that any owning sub-object remains valid until after we have + // deallocated the memory here. + detail::move_binder2 + handler(0, ASIO_MOVE_CAST(Handler)(o->handler_), o->ec_, + ASIO_MOVE_CAST(typename Protocol::socket)(*o)); + p.h = asio::detail::addressof(handler.handler_); + p.reset(); + + // Make the upcall if required. + if (owner) + { + fenced_block b(fenced_block::half); + ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "...")); + w.complete(handler, handler.handler_); + ASIO_HANDLER_INVOCATION_END; + } + } + +private: + Handler handler_; +}; + +#endif // defined(ASIO_HAS_MOVE) + +} // namespace detail +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP -- cgit v1.2.3