net/base/bandwidth_metrics.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/lazy_instance.h"
   6 #include "net/base/bandwidth_metrics.h"
   7
   8 static base::LazyInstance<net::BandwidthMetrics> g_bandwidth_metrics =
   9     LAZY_INSTANCE_INITIALIZER;
  10
  11 namespace net {
  12
  13 ScopedBandwidthMetrics::ScopedBandwidthMetrics()
  14     : started_(false) {
  15 }
  16
  17 ScopedBandwidthMetrics::~ScopedBandwidthMetrics() {
  18   if (started_)
  19     g_bandwidth_metrics.Get().StopStream();
  20 }
  21
  22 void ScopedBandwidthMetrics::StartStream() {
  23   started_ = true;
  24   g_bandwidth_metrics.Get().StartStream();
  25 }
  26
  27 void ScopedBandwidthMetrics::StopStream() {
  28   started_ = false;
  29   g_bandwidth_metrics.Get().StopStream();
  30 }
  31
  32 void ScopedBandwidthMetrics::RecordBytes(int bytes) {
  33   g_bandwidth_metrics.Get().RecordBytes(bytes);
  34 }
  35
  36 }  // namespace net