Add quic_logging

net/quic/core/congestion_control/rtt_stats.cc

 // Copyright 2014 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/core/congestion_control/rtt_stats.h"
 
 #include <cstdlib>  // std::abs
 
+#include "net/quic/platform/api/quic_logging.h"
+
 namespace net {
 
 namespace {
 
 // Default initial rtt used before any samples are received.
 const int kInitialRttMs = 100;
 const float kAlpha = 0.125f;
 const float kOneMinusAlpha = (1 - kAlpha);
 const float kBeta = 0.25f;
 const float kOneMinusBeta = (1 - kBeta);
@@ skipping 13 matching lines @@
       mean_deviation_, QuicTime::Delta::FromMicroseconds(std::abs(
                            (smoothed_rtt_ - latest_rtt_).ToMicroseconds())));
   smoothed_rtt_ = std::max(smoothed_rtt_, latest_rtt_);
 }
 
 // Updates the RTT based on a new sample.
 void RttStats::UpdateRtt(QuicTime::Delta send_delta,
                          QuicTime::Delta ack_delay,
                          QuicTime now) {
   if (send_delta.IsInfinite() || send_delta <= QuicTime::Delta::Zero()) {
-    LOG(WARNING) << "Ignoring measured send_delta, because it's is "
-                 << "either infinite, zero, or negative.  send_delta = "
-                 << send_delta.ToMicroseconds();
+    QUIC_LOG_FIRST_N(WARNING, 3)
+        << "Ignoring measured send_delta, because it's is "
+        << "either infinite, zero, or negative.  send_delta = "
+        << send_delta.ToMicroseconds();
     return;
   }
 
   // Update min_rtt_ first. min_rtt_ does not use an rtt_sample corrected for
   // ack_delay but the raw observed send_delta, since poor clock granularity at
   // the client may cause a high ack_delay to result in underestimation of the
   // min_rtt_.
   if (min_rtt_.IsZero() || min_rtt_ > send_delta) {
     min_rtt_ = send_delta;
   }
@@ skipping 11 matching lines @@
   // First time call.
   if (smoothed_rtt_.IsZero()) {
     smoothed_rtt_ = rtt_sample;
     mean_deviation_ =
         QuicTime::Delta::FromMicroseconds(rtt_sample.ToMicroseconds() / 2);
   } else {
     mean_deviation_ = QuicTime::Delta::FromMicroseconds(static_cast<int64_t>(
         kOneMinusBeta * mean_deviation_.ToMicroseconds() +
         kBeta * std::abs((smoothed_rtt_ - rtt_sample).ToMicroseconds())));
     smoothed_rtt_ = kOneMinusAlpha * smoothed_rtt_ + kAlpha * rtt_sample;
-    DVLOG(1) << " smoothed_rtt(us):" << smoothed_rtt_.ToMicroseconds()
-             << " mean_deviation(us):" << mean_deviation_.ToMicroseconds();
+    QUIC_DVLOG(1) << " smoothed_rtt(us):" << smoothed_rtt_.ToMicroseconds()
+                  << " mean_deviation(us):" << mean_deviation_.ToMicroseconds();
   }
 }
 
 void RttStats::OnConnectionMigration() {
   latest_rtt_ = QuicTime::Delta::Zero();
   min_rtt_ = QuicTime::Delta::Zero();
   smoothed_rtt_ = QuicTime::Delta::Zero();
   mean_deviation_ = QuicTime::Delta::Zero();
   initial_rtt_us_ = kInitialRttMs * kNumMicrosPerMilli;
 }
 
 }  // namespace net