skia2/include/core/SkTime.h

62 lines
1.7 KiB
C++

/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkTime_DEFINED
#define SkTime_DEFINED
#include "SkTypes.h"
class SkString;
/** \class SkTime
Platform-implemented utilities to return time of day, and millisecond counter.
*/
class SK_API SkTime {
public:
struct DateTime {
int16_t fTimeZoneMinutes; // The number of minutes that GetDateTime()
// is ahead of or behind UTC.
uint16_t fYear; //!< e.g. 2005
uint8_t fMonth; //!< 1..12
uint8_t fDayOfWeek; //!< 0..6, 0==Sunday
uint8_t fDay; //!< 1..31
uint8_t fHour; //!< 0..23
uint8_t fMinute; //!< 0..59
uint8_t fSecond; //!< 0..59
void toISO8601(SkString* dst) const;
};
static void GetDateTime(DateTime*);
static double GetSecs() { return GetNSecs() * 1e-9; }
static double GetMSecs() { return GetNSecs() * 1e-6; }
static double GetNSecs();
};
///////////////////////////////////////////////////////////////////////////////
class SkAutoTime {
public:
// The label is not deep-copied, so its address must remain valid for the
// lifetime of this object
SkAutoTime(const char* label = nullptr)
: fLabel(label)
, fNow(SkTime::GetMSecs()) {}
~SkAutoTime() {
uint64_t dur = static_cast<uint64_t>(SkTime::GetMSecs() - fNow);
SkDebugf("%s %ld\n", fLabel ? fLabel : "", dur);
}
private:
const char* fLabel;
double fNow;
};
#define SkAutoTime(...) SK_REQUIRE_LOCAL_VAR(SkAutoTime)
#endif