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 SkString;
16 
17 /** \class SkTime
18     Platform-implemented utilities to return time of day, and millisecond counter.
19 */
20 class SkTime {
21 public:
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 SkMSec GetMSecs();
38 };
39 
40 #if defined(SK_DEBUG) && defined(SK_BUILD_FOR_WIN32)
41     extern SkMSec gForceTickCount;
42 #endif
43 
44 #define SK_TIME_FACTOR      1
45 
46 ///////////////////////////////////////////////////////////////////////////////
47 
48 class SkAutoTime {
49 public:
50     // The label is not deep-copied, so its address must remain valid for the
51     // lifetime of this object
fLabel(label)52     SkAutoTime(const char* label = NULL, SkMSec minToDump = 0) : fLabel(label)
53     {
54         fNow = SkTime::GetMSecs();
55         fMinToDump = minToDump;
56     }
~SkAutoTime()57     ~SkAutoTime()
58     {
59         SkMSec dur = SkTime::GetMSecs() - fNow;
60         if (dur >= fMinToDump) {
61             SkDebugf("%s %d\n", fLabel ? fLabel : "", dur);
62         }
63     }
64 private:
65     const char* fLabel;
66     SkMSec      fNow;
67     SkMSec      fMinToDump;
68 };
69 #define SkAutoTime(...) SK_REQUIRE_LOCAL_VAR(SkAutoTime)
70 
71 #endif
72