src/content/renderer/media/webrtc_uma_histograms.cc

   1 // Copyright 2014 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 "content/renderer/media/webrtc_uma_histograms.h"
   6
   7 #include "base/metrics/histogram.h"
   8
   9 namespace content {
  10
  11 void LogUserMediaRequestWithNoResult(MediaStreamRequestState state) {
  12   UMA_HISTOGRAM_ENUMERATION("WebRTC.UserMediaRequest.NoResultState",
  13                             state,
  14                             NUM_MEDIA_STREAM_REQUEST_WITH_NO_RESULT);
  15 }
  16
  17 void LogUserMediaRequestResult(MediaStreamRequestResult result) {
  18   UMA_HISTOGRAM_ENUMERATION(
  19       "WebRTC.UserMediaRequest.Result", result, NUM_MEDIA_REQUEST_RESULTS);
  20 }
  21
  22 void UpdateWebRTCMethodCount(JavaScriptAPIName api_name) {
  23   DVLOG(3) << "Incrementing WebRTC.webkitApiCount for " << api_name;
  24   UMA_HISTOGRAM_ENUMERATION("WebRTC.webkitApiCount", api_name, INVALID_NAME);
  25   PerSessionWebRTCAPIMetrics::GetInstance()->LogUsageOnlyOnce(api_name);
  26 }
  27
  28 PerSessionWebRTCAPIMetrics::~PerSessionWebRTCAPIMetrics() {
  29 }
  30
  31 // static
  32 PerSessionWebRTCAPIMetrics* PerSessionWebRTCAPIMetrics::GetInstance() {
  33   return Singleton<PerSessionWebRTCAPIMetrics>::get();
  34 }
  35
  36 void PerSessionWebRTCAPIMetrics::IncrementStreamCounter() {
  37   DCHECK(CalledOnValidThread());
  38   ++num_streams_;
  39 }
  40
  41 void PerSessionWebRTCAPIMetrics::DecrementStreamCounter() {
  42   DCHECK(CalledOnValidThread());
  43   if (--num_streams_ == 0) {
  44     ResetUsage();
  45   }
  46 }
  47
  48 PerSessionWebRTCAPIMetrics::PerSessionWebRTCAPIMetrics() : num_streams_(0) {
  49   ResetUsage();
  50 }
  51
  52 void PerSessionWebRTCAPIMetrics::LogUsage(JavaScriptAPIName api_name) {
  53   DVLOG(3) << "Incrementing WebRTC.webkitApiCountPerSession for " << api_name;
  54   UMA_HISTOGRAM_ENUMERATION("WebRTC.webkitApiCountPerSession",
  55                             api_name, INVALID_NAME);
  56 }
  57
  58 void PerSessionWebRTCAPIMetrics::LogUsageOnlyOnce(JavaScriptAPIName api_name) {
  59   DCHECK(CalledOnValidThread());
  60   if (!has_used_api_[api_name]) {
  61     has_used_api_[api_name] = true;
  62     LogUsage(api_name);
  63   }
  64 }
  65
  66 void PerSessionWebRTCAPIMetrics::ResetUsage() {
  67   for (size_t i = 0; i < arraysize(has_used_api_); ++i)
  68     has_used_api_[i] = false;
  69 }
  70
  71 }  // namespace content