gecko-dev/xpcom/ds/TimeStamp_windows.h

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C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_TimeStamp_windows_h
#define mozilla_TimeStamp_windows_h
namespace mozilla {
class TimeStamp;
class TimeStampValue
{
friend struct IPC::ParamTraits<mozilla::TimeStampValue>;
friend class TimeStamp;
friend void StartupTimelineRecordExternal(int, uint64_t);
// Both QPC and GTC are kept in [mt] units.
uint64_t mGTC;
uint64_t mQPC;
bool mHasQPC;
bool mIsNull;
TimeStampValue(uint64_t GTC, uint64_t QPC, bool hasQPC);
uint64_t CheckQPC(const TimeStampValue &aOther) const;
struct _SomethingVeryRandomHere;
MOZ_CONSTEXPR TimeStampValue(_SomethingVeryRandomHere* nullValue)
: mGTC(0), mQPC(0), mHasQPC(false), mIsNull(true) {}
public:
uint64_t operator-(const TimeStampValue &aOther) const;
TimeStampValue operator+(const int64_t aOther) const
{ return TimeStampValue(mGTC + aOther, mQPC + aOther, mHasQPC); }
TimeStampValue operator-(const int64_t aOther) const
{ return TimeStampValue(mGTC - aOther, mQPC - aOther, mHasQPC); }
TimeStampValue& operator+=(const int64_t aOther);
TimeStampValue& operator-=(const int64_t aOther);
bool operator<(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) < 0; }
bool operator>(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) > 0; }
bool operator<=(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) <= 0; }
bool operator>=(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) >= 0; }
bool operator==(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) == 0; }
bool operator!=(const TimeStampValue &aOther) const
{ return int64_t(*this - aOther) != 0; }
};
}
#endif /* mozilla_TimeStamp_h */