cc/debug/devtools_instrumentation.h

   1 // Copyright 2013 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 CC_DEBUG_DEVTOOLS_INSTRUMENTATION_H_
   6 #define CC_DEBUG_DEVTOOLS_INSTRUMENTATION_H_
   7
   8 #include "base/debug/trace_event.h"
   9
  10 namespace cc {
  11 namespace devtools_instrumentation {
  12
  13 namespace internal {
  14 const char kCategory[] = "cc,devtools";
  15 const char kLayerId[] = "layerId";
  16 const char kLayerTreeId[] = "layerTreeId";
  17 }
  18
  19 const char kPaintLayer[] = "PaintLayer";
  20 const char kRasterTask[] = "RasterTask";
  21 const char kImageDecodeTask[] = "ImageDecodeTask";
  22 const char kPaintSetup[] = "PaintSetup";
  23 const char kUpdateLayer[] = "UpdateLayer";
  24
  25 class ScopedLayerTask {
  26  public:
  27   ScopedLayerTask(const char* event_name, int layer_id)
  28     : event_name_(event_name) {
  29     TRACE_EVENT_BEGIN1(internal::kCategory, event_name_,
  30         internal::kLayerId, layer_id);
  31   }
  32   ~ScopedLayerTask() {
  33     TRACE_EVENT_END0(internal::kCategory, event_name_);
  34   }
  35  private:
  36   const char* event_name_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(ScopedLayerTask);
  39 };
  40
  41 class ScopedLayerTreeTask {
  42  public:
  43   ScopedLayerTreeTask(const char* event_name,
  44                       int layer_id,
  45                       uint64 tree_id)
  46     : event_name_(event_name) {
  47     TRACE_EVENT_BEGIN2(internal::kCategory, event_name_,
  48         internal::kLayerId, layer_id, internal::kLayerTreeId, tree_id);
  49   }
  50   ~ScopedLayerTreeTask() {
  51     TRACE_EVENT_END0(internal::kCategory, event_name_);
  52   }
  53  private:
  54   const char* event_name_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(ScopedLayerTreeTask);
  57 };
  58
  59 struct ScopedLayerObjectTracker
  60     : public base::debug::TraceScopedTrackableObject<int> {
  61   explicit ScopedLayerObjectTracker(int layer_id)
  62       : base::debug::TraceScopedTrackableObject<int>(
  63             internal::kCategory,
  64             internal::kLayerId,
  65             layer_id) {
  66   }
  67
  68  private:
  69   DISALLOW_COPY_AND_ASSIGN(ScopedLayerObjectTracker);
  70 };
  71
  72 }  // namespace devtools_instrumentation
  73 }  // namespace cc
  74
  75 #endif  // CC_DEBUG_DEVTOOLS_INSTRUMENTATION_H_