Read recv timestamps from socket (posix only).

webrtc/base/asyncudpsocket.cc

 /*
  *  Copyright 2004 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.
  */
 
@@ skipping 84 matching lines @@
 }
 
 void AsyncUDPSocket::SetError(int error) {
   return socket_->SetError(error);
 }
 
 void AsyncUDPSocket::OnReadEvent(AsyncSocket* socket) {
   ASSERT(socket_.get() == socket);
 
   SocketAddress remote_addr;
-  int len = socket_->RecvFrom(buf_, size_, &remote_addr);
+  int64_t timestamp;
+  int len = socket_->RecvFrom(buf_, size_, &remote_addr, &timestamp);
   if (len < 0) {
     // An error here typically means we got an ICMP error in response to our
     // send datagram, indicating the remote address was unreachable.
     // When doing ICE, this kind of thing will often happen.
     // TODO: Do something better like forwarding the error to the user.
     SocketAddress local_addr = socket_->GetLocalAddress();
     LOG(LS_INFO) << "AsyncUDPSocket[" << local_addr.ToSensitiveString() << "] "
                  << "receive failed with error " << socket_->GetError();
     return;
   }
 
   // TODO: Make sure that we got all of the packet.
   // If we did not, then we should resize our buffer to be large enough.
-  SignalReadPacket(this, buf_, static_cast<size_t>(len), remote_addr,
-                   CreatePacketTime(0));
+  SignalReadPacket(
+      this, buf_, static_cast<size_t>(len), remote_addr,
+      (timestamp > -1 ? PacketTime(timestamp, 0) : CreatePacketTime(0)));
 }
 
 void AsyncUDPSocket::OnWriteEvent(AsyncSocket* socket) {
   SignalReadyToSend(this);
 }
 
 }  // namespace rtc