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249
include/asio/detail/impl/io_uring_socket_service_base.ipp
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249
include/asio/detail/impl/io_uring_socket_service_base.ipp
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//
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// detail/io_uring_socket_service_base.ipp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2025 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_DETAIL_IMPL_IO_URING_SOCKET_SERVICE_BASE_IPP
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#define ASIO_DETAIL_IMPL_IO_URING_SOCKET_SERVICE_BASE_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/config.hpp"
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#if defined(ASIO_HAS_IO_URING)
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#include "asio/detail/io_uring_socket_service_base.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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io_uring_socket_service_base::io_uring_socket_service_base(
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execution_context& context)
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: io_uring_service_(asio::use_service<io_uring_service>(context))
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{
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io_uring_service_.init_task();
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}
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void io_uring_socket_service_base::base_shutdown()
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{
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}
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void io_uring_socket_service_base::construct(
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io_uring_socket_service_base::base_implementation_type& impl)
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{
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impl.socket_ = invalid_socket;
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impl.state_ = 0;
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impl.io_object_data_ = 0;
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}
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void io_uring_socket_service_base::base_move_construct(
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io_uring_socket_service_base::base_implementation_type& impl,
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io_uring_socket_service_base::base_implementation_type& other_impl)
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noexcept
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{
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impl.socket_ = other_impl.socket_;
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other_impl.socket_ = invalid_socket;
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impl.state_ = other_impl.state_;
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other_impl.state_ = 0;
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impl.io_object_data_ = other_impl.io_object_data_;
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other_impl.io_object_data_ = 0;
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}
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void io_uring_socket_service_base::base_move_assign(
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io_uring_socket_service_base::base_implementation_type& impl,
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io_uring_socket_service_base& /*other_service*/,
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io_uring_socket_service_base::base_implementation_type& other_impl)
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{
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destroy(impl);
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impl.socket_ = other_impl.socket_;
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other_impl.socket_ = invalid_socket;
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impl.state_ = other_impl.state_;
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other_impl.state_ = 0;
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impl.io_object_data_ = other_impl.io_object_data_;
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other_impl.io_object_data_ = 0;
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}
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void io_uring_socket_service_base::destroy(
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io_uring_socket_service_base::base_implementation_type& impl)
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{
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if (impl.socket_ != invalid_socket)
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{
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ASIO_HANDLER_OPERATION((io_uring_service_.context(),
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"socket", &impl, impl.socket_, "close"));
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io_uring_service_.deregister_io_object(impl.io_object_data_);
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asio::error_code ignored_ec;
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socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
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io_uring_service_.cleanup_io_object(impl.io_object_data_);
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}
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}
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asio::error_code io_uring_socket_service_base::close(
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io_uring_socket_service_base::base_implementation_type& impl,
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asio::error_code& ec)
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{
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if (is_open(impl))
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{
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ASIO_HANDLER_OPERATION((io_uring_service_.context(),
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"socket", &impl, impl.socket_, "close"));
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io_uring_service_.deregister_io_object(impl.io_object_data_);
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socket_ops::close(impl.socket_, impl.state_, false, ec);
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io_uring_service_.cleanup_io_object(impl.io_object_data_);
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}
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else
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{
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ec = success_ec_;
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}
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// The descriptor is closed by the OS even if close() returns an error.
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//
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// (Actually, POSIX says the state of the descriptor is unspecified. On
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// Linux the descriptor is apparently closed anyway; e.g. see
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// http://lkml.org/lkml/2005/9/10/129
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construct(impl);
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return ec;
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}
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socket_type io_uring_socket_service_base::release(
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io_uring_socket_service_base::base_implementation_type& impl,
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asio::error_code& ec)
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{
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if (!is_open(impl))
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{
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ec = asio::error::bad_descriptor;
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return invalid_socket;
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}
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ASIO_HANDLER_OPERATION((io_uring_service_.context(),
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"socket", &impl, impl.socket_, "release"));
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io_uring_service_.deregister_io_object(impl.io_object_data_);
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io_uring_service_.cleanup_io_object(impl.io_object_data_);
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socket_type sock = impl.socket_;
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construct(impl);
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ec = success_ec_;
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return sock;
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}
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asio::error_code io_uring_socket_service_base::cancel(
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io_uring_socket_service_base::base_implementation_type& impl,
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asio::error_code& ec)
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{
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if (!is_open(impl))
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{
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ec = asio::error::bad_descriptor;
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return ec;
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}
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ASIO_HANDLER_OPERATION((io_uring_service_.context(),
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"socket", &impl, impl.socket_, "cancel"));
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io_uring_service_.cancel_ops(impl.io_object_data_);
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ec = success_ec_;
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return ec;
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}
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asio::error_code io_uring_socket_service_base::do_open(
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io_uring_socket_service_base::base_implementation_type& impl,
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int af, int type, int protocol, asio::error_code& ec)
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{
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if (is_open(impl))
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{
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ec = asio::error::already_open;
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return ec;
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}
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socket_holder sock(socket_ops::socket(af, type, protocol, ec));
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if (sock.get() == invalid_socket)
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return ec;
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io_uring_service_.register_io_object(impl.io_object_data_);
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impl.socket_ = sock.release();
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switch (type)
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{
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case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
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case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
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default: impl.state_ = 0; break;
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}
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ec = success_ec_;
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return ec;
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}
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asio::error_code io_uring_socket_service_base::do_assign(
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io_uring_socket_service_base::base_implementation_type& impl, int type,
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const io_uring_socket_service_base::native_handle_type& native_socket,
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asio::error_code& ec)
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{
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if (is_open(impl))
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{
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ec = asio::error::already_open;
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return ec;
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}
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io_uring_service_.register_io_object(impl.io_object_data_);
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impl.socket_ = native_socket;
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switch (type)
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{
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case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
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case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
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default: impl.state_ = 0; break;
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}
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impl.state_ |= socket_ops::possible_dup;
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ec = success_ec_;
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return ec;
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}
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void io_uring_socket_service_base::start_op(
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io_uring_socket_service_base::base_implementation_type& impl,
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int op_type, io_uring_operation* op, bool is_continuation, bool noop)
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{
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if (!noop)
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{
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io_uring_service_.start_op(op_type,
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impl.io_object_data_, op, is_continuation);
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}
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else
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{
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io_uring_service_.post_immediate_completion(op, is_continuation);
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}
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}
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void io_uring_socket_service_base::start_accept_op(
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io_uring_socket_service_base::base_implementation_type& impl,
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io_uring_operation* op, bool is_continuation, bool peer_is_open)
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{
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if (!peer_is_open)
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start_op(impl, io_uring_service::read_op, op, is_continuation, false);
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else
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{
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op->ec_ = asio::error::already_open;
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io_uring_service_.post_immediate_completion(op, is_continuation);
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}
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}
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // defined(ASIO_HAS_IO_URING)
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#endif // ASIO_DETAIL_IMPL_IO_URING_SOCKET_SERVICE_BASE_IPP
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