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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef BASE_PROFILER_SCOPED_TRACKER_H_ | 5 #ifndef BASE_PROFILER_SCOPED_TRACKER_H_ |
| 6 #define BASE_PROFILER_SCOPED_TRACKER_H_ | 6 #define BASE_PROFILER_SCOPED_TRACKER_H_ |
| 7 | 7 |
| 8 //------------------------------------------------------------------------------ | 8 //------------------------------------------------------------------------------ |
| 9 // Utilities for temporarily instrumenting code to dig into issues that were | 9 // Utilities for temporarily instrumenting code to dig into issues that were |
| 10 // found using profiler data. | 10 // found using profiler data. |
| 11 | 11 |
| 12 #include "base/base_export.h" | 12 #include "base/base_export.h" |
| 13 #include "base/bind.h" | 13 #include "base/bind.h" |
| 14 #include "base/callback_forward.h" | 14 #include "base/callback_forward.h" |
| 15 #include "base/location.h" | 15 #include "base/location.h" |
| 16 #include "base/macros.h" |
| 16 #include "base/profiler/scoped_profile.h" | 17 #include "base/profiler/scoped_profile.h" |
| 17 | 18 |
| 18 namespace tracked_objects { | 19 namespace tracked_objects { |
| 19 | 20 |
| 20 // ScopedTracker instruments a region within the code if the instrumentation is | 21 // ScopedTracker instruments a region within the code if the instrumentation is |
| 21 // enabled. It can be used, for example, to find out if a source of jankiness is | 22 // enabled. It can be used, for example, to find out if a source of jankiness is |
| 22 // inside the instrumented code region. | 23 // inside the instrumented code region. |
| 23 // Details: | 24 // Details: |
| 24 // 1. This class creates a task (like ones created by PostTask calls or IPC | 25 // 1. This class creates a task (like ones created by PostTask calls or IPC |
| 25 // message handlers). This task can be seen in chrome://profiler and is sent as | 26 // message handlers). This task can be seen in chrome://profiler and is sent as |
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| 67 } | 68 } |
| 68 | 69 |
| 69 const ScopedProfile scoped_profile_; | 70 const ScopedProfile scoped_profile_; |
| 70 | 71 |
| 71 DISALLOW_COPY_AND_ASSIGN(ScopedTracker); | 72 DISALLOW_COPY_AND_ASSIGN(ScopedTracker); |
| 72 }; | 73 }; |
| 73 | 74 |
| 74 } // namespace tracked_objects | 75 } // namespace tracked_objects |
| 75 | 76 |
| 76 #endif // BASE_PROFILER_SCOPED_TRACKER_H_ | 77 #endif // BASE_PROFILER_SCOPED_TRACKER_H_ |
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