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| 1 // Copyright (c) 2011 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 |
| 6 #ifndef BASE_PROFILER_SCOPED_PROFILE_H_ |
| 7 #define BASE_PROFILER_SCOPED_PROFILE_H_ |
| 8 |
| 9 //------------------------------------------------------------------------------ |
| 10 // ScopedProfile provides basic helper functions for profiling a short |
| 11 // region of code within a scope. It is separate from the related ThreadData |
| 12 // class so that it can be included without much other cruft, and provide the |
| 13 // macros listed below. |
| 14 |
| 15 #include "base/base_export.h" |
| 16 #include "base/location.h" |
| 17 #include "base/profiler/tracked_time.h" |
| 18 |
| 19 #define TRACK_RUN_IN_THIS_SCOPED_REGION_FOR_OFFICIAL_BUILDS(variable_name) \ |
| 20 ::tracked_objects::ScopedProfile variable_name(FROM_HERE) |
| 21 |
| 22 #define TRACK_RUN_IN_IPC_HANDLER(dispatch_function_name) \ |
| 23 ::tracked_objects::ScopedProfile some_tracking_variable_name( \ |
| 24 FROM_HERE_WITH_EXPLICIT_FUNCTION(#dispatch_function_name)) |
| 25 |
| 26 |
| 27 namespace tracked_objects { |
| 28 class Births; |
| 29 |
| 30 class BASE_EXPORT ScopedProfile { |
| 31 public: |
| 32 explicit ScopedProfile(const Location& location); |
| 33 ~ScopedProfile(); |
| 34 |
| 35 // Stop tracing prior to the end destruction of the instance. |
| 36 void StopClockAndTally(); |
| 37 |
| 38 private: |
| 39 Births* birth_; // Place in code where tracking started. |
| 40 const TrackedTime start_of_run_; |
| 41 |
| 42 DISALLOW_COPY_AND_ASSIGN(ScopedProfile); |
| 43 }; |
| 44 |
| 45 } // namespace tracked_objects |
| 46 |
| 47 #endif // BASE_PROFILER_SCOPED_PROFILE_H_ |
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