SkTime.h revision 74b43a9d4c5c602704f0af6a5706faacca45597a 
1
2/*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10#ifndef SkTime_DEFINED
11#define SkTime_DEFINED
12
13#include "SkTypes.h"
14
15/** \class SkTime
16    Platform-implemented utilities to return time of day, and millisecond counter.
17*/
18class SkTime {
19public:
20    struct DateTime {
21        uint16_t fYear;          //!< e.g. 2005
22        uint8_t  fMonth;         //!< 1..12
23        uint8_t  fDayOfWeek;     //!< 0..6, 0==Sunday
24        uint8_t  fDay;           //!< 1..31
25        uint8_t  fHour;          //!< 0..23
26        uint8_t  fMinute;        //!< 0..59
27        uint8_t  fSecond;        //!< 0..59
28    };
29    static void GetDateTime(DateTime*);
30
31    static SkMSec GetMSecs() { return GetNSecs() / 1000000; }
32
33    static SkNSec GetNSecs();
34};
35
36#if defined(SK_DEBUG) && defined(SK_BUILD_FOR_WIN32)
37    extern SkMSec gForceTickCount;
38#endif
39
40#define SK_TIME_FACTOR      1
41
42///////////////////////////////////////////////////////////////////////////////
43
44class SkAutoTime {
45public:
46    // The label is not deep-copied, so its address must remain valid for the
47    // lifetime of this object
48    SkAutoTime(const char* label = NULL, SkMSec minToDump = 0) : fLabel(label)
49    {
50        fNow = SkTime::GetMSecs();
51        fMinToDump = minToDump;
52    }
53    ~SkAutoTime()
54    {
55        SkMSec dur = SkTime::GetMSecs() - fNow;
56        if (dur >= fMinToDump) {
57            SkDebugf("%s %d\n", fLabel ? fLabel : "", dur);
58        }
59    }
60private:
61    const char* fLabel;
62    SkMSec      fNow;
63    SkMSec      fMinToDump;
64};
65#define SkAutoTime(...) SK_REQUIRE_LOCAL_VAR(SkAutoTime)
66
67#endif
68