1 /*
2  * Copyright 2015 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "SkTime.h"
9 
10 #include "SkLeanWindows.h"
11 #include "SkString.h"
12 #include "SkTo.h"
13 #include "SkTypes.h"
14 
15 #include <chrono>
16 
toISO8601(SkString * dst) const17 void SkTime::DateTime::toISO8601(SkString* dst) const {
18     if (dst) {
19         int timeZoneMinutes = SkToInt(fTimeZoneMinutes);
20         char timezoneSign = timeZoneMinutes >= 0 ? '+' : '-';
21         int timeZoneHours = SkTAbs(timeZoneMinutes) / 60;
22         timeZoneMinutes = SkTAbs(timeZoneMinutes) % 60;
23         dst->printf("%04u-%02u-%02uT%02u:%02u:%02u%c%02d:%02d",
24                     static_cast<unsigned>(fYear), static_cast<unsigned>(fMonth),
25                     static_cast<unsigned>(fDay), static_cast<unsigned>(fHour),
26                     static_cast<unsigned>(fMinute),
27                     static_cast<unsigned>(fSecond), timezoneSign, timeZoneHours,
28                     timeZoneMinutes);
29     }
30 }
31 
32 #ifdef SK_BUILD_FOR_WIN
33 
GetDateTime(DateTime * dt)34 void SkTime::GetDateTime(DateTime* dt) {
35     if (dt) {
36         SYSTEMTIME st;
37         GetSystemTime(&st);
38         dt->fTimeZoneMinutes = 0;
39         dt->fYear       = st.wYear;
40         dt->fMonth      = SkToU8(st.wMonth);
41         dt->fDayOfWeek  = SkToU8(st.wDayOfWeek);
42         dt->fDay        = SkToU8(st.wDay);
43         dt->fHour       = SkToU8(st.wHour);
44         dt->fMinute     = SkToU8(st.wMinute);
45         dt->fSecond     = SkToU8(st.wSecond);
46     }
47 }
48 
49 #else // SK_BUILD_FOR_WIN
50 
51 #include <time.h>
GetDateTime(DateTime * dt)52 void SkTime::GetDateTime(DateTime* dt) {
53     if (dt) {
54         time_t m_time;
55         time(&m_time);
56         struct tm tstruct;
57         gmtime_r(&m_time, &tstruct);
58         dt->fTimeZoneMinutes = 0;
59         dt->fYear       = tstruct.tm_year + 1900;
60         dt->fMonth      = SkToU8(tstruct.tm_mon + 1);
61         dt->fDayOfWeek  = SkToU8(tstruct.tm_wday);
62         dt->fDay        = SkToU8(tstruct.tm_mday);
63         dt->fHour       = SkToU8(tstruct.tm_hour);
64         dt->fMinute     = SkToU8(tstruct.tm_min);
65         dt->fSecond     = SkToU8(tstruct.tm_sec);
66     }
67 }
68 #endif // SK_BUILD_FOR_WIN
69 
70 #if !defined(__has_feature)
71     #define  __has_feature(x) 0
72 #endif
73 
GetNSecs()74 double SkTime::GetNSecs() {
75 #if __has_feature(memory_sanitizer)
76     // See skia:6504
77     struct timespec tp;
78     clock_gettime(CLOCK_MONOTONIC, &tp);
79     return tp.tv_sec * 1e9 + tp.tv_nsec;
80 #else
81     auto now = std::chrono::high_resolution_clock::now();
82     std::chrono::duration<double, std::nano> ns = now.time_since_epoch();
83     return ns.count();
84 #endif
85 }
86