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114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/socket/tcp_server_socket.h"
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#include <utility>
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#include "base/bind.h"
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#include "base/bind_helpers.h"
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#include "base/logging.h"
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#include "net/base/net_errors.h"
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#include "net/socket/socket_descriptor.h"
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#include "net/socket/tcp_client_socket.h"
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namespace net {
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TCPServerSocket::TCPServerSocket(NetLog* net_log, const NetLogSource& source)
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: socket_(nullptr, net_log, source), pending_accept_(false) {}
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int TCPServerSocket::AdoptSocket(SocketDescriptor socket) {
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return socket_.AdoptUnconnectedSocket(socket);
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}
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TCPServerSocket::~TCPServerSocket() = default;
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int TCPServerSocket::Listen(const IPEndPoint& address, int backlog) {
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int result = socket_.Open(address.GetFamily());
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if (result != OK)
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return result;
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result = socket_.SetDefaultOptionsForServer();
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if (result != OK) {
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socket_.Close();
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return result;
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}
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result = socket_.Bind(address);
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if (result != OK) {
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socket_.Close();
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return result;
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}
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result = socket_.Listen(backlog);
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if (result != OK) {
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socket_.Close();
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return result;
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}
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return OK;
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}
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int TCPServerSocket::GetLocalAddress(IPEndPoint* address) const {
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return socket_.GetLocalAddress(address);
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}
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int TCPServerSocket::Accept(std::unique_ptr<StreamSocket>* socket,
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const CompletionCallback& callback) {
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DCHECK(socket);
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DCHECK(!callback.is_null());
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if (pending_accept_) {
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NOTREACHED();
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return ERR_UNEXPECTED;
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}
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// It is safe to use base::Unretained(this). |socket_| is owned by this class,
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// and the callback won't be run after |socket_| is destroyed.
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CompletionCallback accept_callback =
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base::Bind(&TCPServerSocket::OnAcceptCompleted, base::Unretained(this),
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socket, callback);
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int result = socket_.Accept(&accepted_socket_, &accepted_address_,
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accept_callback);
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if (result != ERR_IO_PENDING) {
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// |accept_callback| won't be called so we need to run
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// ConvertAcceptedSocket() ourselves in order to do the conversion from
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// |accepted_socket_| to |socket|.
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result = ConvertAcceptedSocket(result, socket);
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} else {
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pending_accept_ = true;
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}
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return result;
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}
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void TCPServerSocket::DetachFromThread() {
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socket_.DetachFromThread();
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}
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int TCPServerSocket::ConvertAcceptedSocket(
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int result,
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std::unique_ptr<StreamSocket>* output_accepted_socket) {
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// Make sure the TCPSocket object is destroyed in any case.
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std::unique_ptr<TCPSocket> temp_accepted_socket(std::move(accepted_socket_));
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if (result != OK)
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return result;
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output_accepted_socket->reset(
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new TCPClientSocket(std::move(temp_accepted_socket), accepted_address_));
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return OK;
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}
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void TCPServerSocket::OnAcceptCompleted(
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std::unique_ptr<StreamSocket>* output_accepted_socket,
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const CompletionCallback& forward_callback,
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int result) {
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result = ConvertAcceptedSocket(result, output_accepted_socket);
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pending_accept_ = false;
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forward_callback.Run(result);
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}
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} // namespace net
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