security/sandbox/chromium/base/profiler/alternate_timer.h@97036ab72558 (annotated)
security/sandbox/chromium/base/profiler/alternate_timer.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| michael@0 | 2 | // Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 3 | // found in the LICENSE file. |
| michael@0 | 4 | |
| michael@0 | 5 | // This is a glue file, which allows third party code to call into our profiler |
| michael@0 | 6 | // without having to include most any functions from base. |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef BASE_PROFILER_ALTERNATE_TIMER_H_ |
| michael@0 | 9 | #define BASE_PROFILER_ALTERNATE_TIMER_H_ |
| michael@0 | 10 | |
| michael@0 | 11 | #include "base/base_export.h" |
| michael@0 | 12 | |
| michael@0 | 13 | namespace tracked_objects { |
| michael@0 | 14 | |
| michael@0 | 15 | enum TimeSourceType { |
| michael@0 | 16 | TIME_SOURCE_TYPE_WALL_TIME, |
| michael@0 | 17 | TIME_SOURCE_TYPE_TCMALLOC |
| michael@0 | 18 | }; |
| michael@0 | 19 | |
| michael@0 | 20 | // Provide type for an alternate timer function. |
| michael@0 | 21 | typedef unsigned int NowFunction(); |
| michael@0 | 22 | |
| michael@0 | 23 | // Environment variable name that is used to activate alternate timer profiling |
| michael@0 | 24 | // (such as using TCMalloc allocations to provide a pseudo-timer) for tasks |
| michael@0 | 25 | // instead of wall clock profiling. |
| michael@0 | 26 | BASE_EXPORT extern const char kAlternateProfilerTime[]; |
| michael@0 | 27 | |
| michael@0 | 28 | // Set an alternate timer function to replace the OS time function when |
| michael@0 | 29 | // profiling. Typically this is called by an allocator that is providing a |
| michael@0 | 30 | // function that indicates how much memory has been allocated on any given |
| michael@0 | 31 | // thread. |
| michael@0 | 32 | BASE_EXPORT void SetAlternateTimeSource(NowFunction* now_function, |
| michael@0 | 33 | TimeSourceType type); |
| michael@0 | 34 | |
| michael@0 | 35 | // Gets the pointer to a function that was set via SetAlternateTimeSource(). |
| michael@0 | 36 | // Returns NULL if no set was done prior to calling GetAlternateTimeSource. |
| michael@0 | 37 | NowFunction* GetAlternateTimeSource(); |
| michael@0 | 38 | |
| michael@0 | 39 | // Returns the type of the currently set time source. |
| michael@0 | 40 | BASE_EXPORT TimeSourceType GetTimeSourceType(); |
| michael@0 | 41 | |
| michael@0 | 42 | } // namespace tracked_objects |
| michael@0 | 43 | |
| michael@0 | 44 | #endif // BASE_PROFILER_ALTERNATE_TIMER_H_ |
