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| 1 // Copyright (c) 2012 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 #ifndef CHROME_RENDERER_RENDERER_HISTOGRAM_SNAPSHOTS_H_ | |
| 6 #define CHROME_RENDERER_RENDERER_HISTOGRAM_SNAPSHOTS_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <map> | |
| 10 #include <string> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/basictypes.h" | |
| 14 #include "base/memory/weak_ptr.h" | |
| 15 #include "base/metrics/histogram.h" | |
| 16 #include "base/process.h" | |
| 17 #include "chrome/common/metrics/histogram_sender.h" | |
| 18 #include "content/public/renderer/render_process_observer.h" | |
| 19 | |
| 20 class RendererHistogramSnapshots : public HistogramSender, | |
| 21 public content::RenderProcessObserver { | |
| 22 public: | |
| 23 RendererHistogramSnapshots(); | |
| 24 virtual ~RendererHistogramSnapshots(); | |
| 25 | |
| 26 // Send the histogram data. | |
| 27 void SendHistograms(int sequence_number); | |
| 28 | |
| 29 private: | |
| 30 // RenderProcessObserver implementation. | |
| 31 virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; | |
| 32 | |
| 33 void OnGetRendererHistograms(int sequence_number); | |
| 34 | |
| 35 // Maintain a map of histogram names to the sample stats we've sent. | |
| 36 typedef std::map<std::string, base::Histogram::SampleSet> LoggedSampleMap; | |
| 37 typedef std::vector<std::string> HistogramPickledList; | |
| 38 | |
| 39 // Extract snapshot data and then send it off the the Browser process. | |
| 40 // Send only a delta to what we have already sent. | |
| 41 void UploadAllHistrograms(int sequence_number); | |
| 42 | |
| 43 base::WeakPtrFactory<RendererHistogramSnapshots> weak_factory_; | |
| 44 | |
| 45 // HistogramSender interface (override) methods. | |
| 46 virtual void TransmitHistogramDelta( | |
| 47 const base::Histogram& histogram, | |
| 48 const base::Histogram::SampleSet& snapshot) OVERRIDE; | |
| 49 virtual void InconsistencyDetected(int problem) OVERRIDE; | |
| 50 virtual void UniqueInconsistencyDetected(int problem) OVERRIDE; | |
| 51 virtual void SnapshotProblemResolved(int amount) OVERRIDE; | |
| 52 | |
| 53 // Collection of histograms to send to the browser. | |
| 54 HistogramPickledList pickled_histograms_; | |
| 55 | |
| 56 DISALLOW_COPY_AND_ASSIGN(RendererHistogramSnapshots); | |
| 57 }; | |
| 58 | |
| 59 #endif // CHROME_RENDERER_RENDERER_HISTOGRAM_SNAPSHOTS_H_ | |
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Chromium Code Reviews
Issue 10454086:
Histograms - Support histograms for Plugins, GPU (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/