The Tor Browser / file comparison
comparison: security/sandbox/chromium/base/profiler/alternate_timer.h
security/sandbox/chromium/base/profiler/alternate_timer.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:c468ed77b317 |
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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 // This is a glue file, which allows third party code to call into our profiler | |
| 6 // without having to include most any functions from base. | |
| 7 | |
| 8 #ifndef BASE_PROFILER_ALTERNATE_TIMER_H_ | |
| 9 #define BASE_PROFILER_ALTERNATE_TIMER_H_ | |
| 10 | |
| 11 #include "base/base_export.h" | |
| 12 | |
| 13 namespace tracked_objects { | |
| 14 | |
| 15 enum TimeSourceType { | |
| 16 TIME_SOURCE_TYPE_WALL_TIME, | |
| 17 TIME_SOURCE_TYPE_TCMALLOC | |
| 18 }; | |
| 19 | |
| 20 // Provide type for an alternate timer function. | |
| 21 typedef unsigned int NowFunction(); | |
| 22 | |
| 23 // Environment variable name that is used to activate alternate timer profiling | |
| 24 // (such as using TCMalloc allocations to provide a pseudo-timer) for tasks | |
| 25 // instead of wall clock profiling. | |
| 26 BASE_EXPORT extern const char kAlternateProfilerTime[]; | |
| 27 | |
| 28 // Set an alternate timer function to replace the OS time function when | |
| 29 // profiling. Typically this is called by an allocator that is providing a | |
| 30 // function that indicates how much memory has been allocated on any given | |
| 31 // thread. | |
| 32 BASE_EXPORT void SetAlternateTimeSource(NowFunction* now_function, | |
| 33 TimeSourceType type); | |
| 34 | |
| 35 // Gets the pointer to a function that was set via SetAlternateTimeSource(). | |
| 36 // Returns NULL if no set was done prior to calling GetAlternateTimeSource. | |
| 37 NowFunction* GetAlternateTimeSource(); | |
| 38 | |
| 39 // Returns the type of the currently set time source. | |
| 40 BASE_EXPORT TimeSourceType GetTimeSourceType(); | |
| 41 | |
| 42 } // namespace tracked_objects | |
| 43 | |
| 44 #endif // BASE_PROFILER_ALTERNATE_TIMER_H_ |
