1 files changed, 48 insertions, 0 deletions
diff --git a/chromium/net/quic/congestion_control/inter_arrival_receiver.cc b/chromium/net/quic/congestion_control/inter_arrival_receiver.cc
new file mode 100644
index 00000000000..770b287db0b
--- /dev/null
+++ b/chromium/net/quic/congestion_control/inter_arrival_receiver.cc
@@ -0,0 +1,48 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/quic/congestion_control/inter_arrival_receiver.h"
+
+#include "base/basictypes.h"
+
+namespace net {
+
+InterArrivalReceiver::InterArrivalReceiver()
+    : accumulated_number_of_recoverd_lost_packets_(0) {
+}
+
+InterArrivalReceiver::~InterArrivalReceiver() {
+}
+
+bool InterArrivalReceiver::GenerateCongestionFeedback(
+    QuicCongestionFeedbackFrame* feedback) {
+  if (received_packet_times_.size() <= 1) {
+    // Don't waste resources by sending a feedback frame for only one packet.
+    return false;
+  }
+  feedback->type = kInterArrival;
+  feedback->inter_arrival.accumulated_number_of_lost_packets =
+      accumulated_number_of_recoverd_lost_packets_;
+
+  // Copy our current receive set to our feedback message, we will not resend
+  // this data if it is lost.
+  feedback->inter_arrival.received_packet_times = received_packet_times_;
+
+  // Prepare for the next set of arriving packets by clearing our current set.
+  received_packet_times_.clear();
+  return true;
+}
+
+void InterArrivalReceiver::RecordIncomingPacket(
+    QuicByteCount /*bytes*/,
+    QuicPacketSequenceNumber sequence_number,
+    QuicTime timestamp,
+    bool revived) {
+  if (revived) {
+    ++accumulated_number_of_recoverd_lost_packets_;
+  }
+  received_packet_times_.insert(std::make_pair(sequence_number, timestamp));
+}
+
+}  // namespace net