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
15class SkString;
16
17/** \class SkTime
18    Platform-implemented utilities to return time of day, and millisecond counter.
19*/
20class SK_API SkTime {
21public:
22    struct DateTime {
23        int16_t  fTimeZoneMinutes;  // The number of minutes that GetDateTime()
24                                    // is ahead of or behind UTC.
25        uint16_t fYear;          //!< e.g. 2005
26        uint8_t  fMonth;         //!< 1..12
27        uint8_t  fDayOfWeek;     //!< 0..6, 0==Sunday
28        uint8_t  fDay;           //!< 1..31
29        uint8_t  fHour;          //!< 0..23
30        uint8_t  fMinute;        //!< 0..59
31        uint8_t  fSecond;        //!< 0..59
32
33        void toISO8601(SkString* dst) const;
34    };
35    static void GetDateTime(DateTime*);
36
37    static double GetSecs() { return GetNSecs() * 1e-9; }
38    static double GetMSecs() { return GetNSecs() * 1e-6; }
39    static double GetNSecs();
40};
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 = nullptr)
49        : fLabel(label)
50        , fNow(SkTime::GetMSecs()) {}
51    ~SkAutoTime() {
52        uint64_t dur = static_cast<uint64_t>(SkTime::GetMSecs() - fNow);
53        SkDebugf("%s %ld\n", fLabel ? fLabel : "", dur);
54    }
55private:
56    const char* fLabel;
57    double      fNow;
58};
59#define SkAutoTime(...) SK_REQUIRE_LOCAL_VAR(SkAutoTime)
60
61#endif
62