Home | History | Annotate | Download | only in media 
      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
     72