blob: 3df47add4e6a60efabcf2dc9d2822e3d2d048893 [file] [log] [blame]
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/p2p/base/udptransport.h"
#include <string>
#include <utility> // For std::move.
#include "webrtc/rtc_base/asyncpacketsocket.h"
#include "webrtc/rtc_base/asyncudpsocket.h"
#include "webrtc/rtc_base/logging.h"
#include "webrtc/rtc_base/socketaddress.h"
#include "webrtc/rtc_base/thread.h"
#include "webrtc/rtc_base/thread_checker.h"
namespace cricket {
UdpTransport::UdpTransport(const std::string& transport_name,
std::unique_ptr<rtc::AsyncPacketSocket> socket)
: transport_name_(transport_name), socket_(std::move(socket)) {
socket_->SignalReadPacket.connect(this, &UdpTransport::OnSocketReadPacket);
socket_->SignalSentPacket.connect(this, &UdpTransport::OnSocketSentPacket);
UdpTransport::~UdpTransport() {
rtc::SocketAddress UdpTransport::GetLocalAddress() const {
return socket_->GetLocalAddress();
bool UdpTransport::SetRemoteAddress(const rtc::SocketAddress& addr) {
if (!addr.IsComplete()) {
LOG(LS_WARNING) << "Remote address not complete.";
return false;
// TODO(johan): check for ipv4, other settings.
bool prev_destination_nil = remote_address_.IsNil();
remote_address_ = addr;
// Going from "didn't have destination" to "have destination" or vice versa.
if (prev_destination_nil != remote_address_.IsNil()) {
if (prev_destination_nil) {
return true;
rtc::SocketAddress UdpTransport::GetRemoteAddress() const {
return remote_address_;
bool UdpTransport::writable() const {
return !remote_address_.IsNil();
int UdpTransport::SendPacket(const char* data,
size_t len,
const rtc::PacketOptions& options,
int flags) {
// No thread_checker in high frequency network function.
if (remote_address_.IsNil()) {
LOG(LS_WARNING) << "Remote address not set.";
send_error_ = ENOTCONN;
return -1;
int result =
socket_->SendTo((const void*)data, len, remote_address_, options);
if (result <= 0) {
LOG(LS_VERBOSE) << "SendPacket() " << result;
return result;
void UdpTransport::OnSocketReadPacket(rtc::AsyncPacketSocket* socket,
const char* data,
size_t len,
const rtc::SocketAddress& remote_addr,
const rtc::PacketTime& packet_time) {
// No thread_checker in high frequency network function.
SignalReadPacket(this, data, len, packet_time, 0);
void UdpTransport::OnSocketSentPacket(rtc::AsyncPacketSocket* socket,
const rtc::SentPacket& packet) {
RTC_DCHECK_EQ(socket_.get(), socket);
SignalSentPacket(this, packet);
} // namespace cricket