chrome\browser\sync\util\highres_timer_win.cc - Issue 193103: Build sync engine as part of the browser build

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Side by Side Diff: chrome\browser\sync\util\highres_timer_win.cc

Issue 193103: Build sync engine as part of the browser build (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/

Patch Set: '' Created 11 years, 3 months ago

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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2009 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 // High resolution timer functions for use in Windows.	5 // High resolution timer functions for use in Windows.

6	6

7 #include "chrome/browser/sync/util/highres_timer.h"	7 #include "chrome/browser/sync/util/highres_timer.h"

8	8

9 bool HighresTimer::perf_freq_collected_ = false;	9 bool HighresTimer::perf_freq_collected_ = false;

10 ULONGLONG HighresTimer::perf_freq_ = 0;	10 ULONGLONG HighresTimer::perf_freq_ = 0;

(...skipping 26 matching lines...) Expand all Loading...
37 void HighresTimer::CollectPerfFreq() {	37 void HighresTimer::CollectPerfFreq() {

38 LARGE_INTEGER freq;	38 LARGE_INTEGER freq;

39	39

40 // Note that this is racy. It's OK, however, because even concurrent	40 // Note that this is racy. It's OK, however, because even concurrent

41 // executions of this are idempotent.	41 // executions of this are idempotent.

42 if (::QueryPerformanceFrequency(&freq)) {	42 if (::QueryPerformanceFrequency(&freq)) {

43 perf_freq_ = freq.QuadPart;	43 perf_freq_ = freq.QuadPart;

44 perf_freq_collected_ = true;	44 perf_freq_collected_ = true;

45 }	45 }

46 }	46 }

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