Land Recent QUIC Changes

net/quic/quic_stats.h

+// Copyright (c) 2012 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.
+
+#ifndef NET_QUIC_QUIC_STATS_H_
+#define NET_QUIC_QUIC_STATS_H_
+
+#include "base/basictypes.h"
+#include "net/base/net_export.h"
+
+namespace net {
+// TODO(satyamshekhar): Add more interesting stats:
+// 1. (C/S)HLO retransmission count.
+// 2. SHLO received to first stream packet processed time.
+// 3. CHLO sent to SHLO received time.
+// 4. Number of migrations.
+// 5. Number of out of order packets.
+// 6. Avg packet size.
+// 7. Number of connections that require more that 1-RTT.
+// 8. Avg number of streams / session.
+// 9. Number of duplicates received.
+// 10. Fraction of traffic sent/received that was not data (protocol overhead).
+// 11. Fraction of data transferred that was padding.
+
+// Structure to hold stats for a QuicConnection.
+struct NET_EXPORT_PRIVATE QuicConnectionStats {
+  QuicConnectionStats();
+  ~QuicConnectionStats();
+
+  uint64 bytes_sent;  // includes retransmissions, fec.
+  uint32 packets_sent;
+
+  uint64 bytes_received;  // includes duplicate data for a stream, fec.
+  uint32 packets_received;  // includes dropped packets
+
+  uint64 bytes_retransmitted;
+  uint32 packets_retransmitted;
+
+  uint32 packets_revived;
+  uint32 packets_dropped;  // duplicate or less than least unacked.
+  uint32 rto_count;
+
+  uint32 rtt;
+  uint64 estimated_bandwidth;
+  // TODO(satyamshekhar): Add window_size, mss and mtu.
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_QUIC_STATS_H_