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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_TOOLS_TIME_HXX
#define INCLUDED_TOOLS_TIME_HXX
#include <tools/toolsdllapi.h>
#include <com/sun/star/util/Time.hpp>
namespace com::sun::star::util { struct DateTime; }
/**
@WARNING: This class can serve both as wall clock time and time duration, and
the mixing of these concepts leads to problems such as there being
25 hours or 10 minus 20 seconds being (non-negative) 10 seconds.
*/
namespace tools {
class SAL_WARN_UNUSED TOOLS_DLLPUBLIC Time
{
private:
sal_Int64 nTime;
void init( sal_uInt32 nHour, sal_uInt32 nMin,
sal_uInt32 nSec, sal_uInt64 nNanoSec);
public:
enum TimeInitSystem
{
SYSTEM
};
// temporary until all uses are inspected and resolved
enum TimeInitEmpty
{
EMPTY
};
static const sal_Int64 hourPerDay = 24;
static const sal_Int64 minutePerHour = 60;
static const sal_Int64 secondPerMinute = 60;
static const sal_Int64 nanoSecPerSec = 1000000000;
static const sal_Int64 nanoSecPerMinute = nanoSecPerSec * secondPerMinute;
static const sal_Int64 nanoSecPerHour = nanoSecPerSec * secondPerMinute * minutePerHour;
static const sal_Int64 nanoSecPerDay = nanoSecPerSec * secondPerMinute * minutePerHour * hourPerDay;
static const sal_Int64 secondPerHour = secondPerMinute * minutePerHour;
static const sal_Int64 secondPerDay = secondPerMinute * minutePerHour * hourPerDay;
static const sal_Int64 minutePerDay = minutePerHour * hourPerDay;
static const sal_Int64 nanoPerMicro = 1000;
static const sal_Int64 nanoPerMilli = 1000000;
static const sal_Int64 nanoPerCenti = 10000000;
explicit Time( TimeInitEmpty )
{ nTime = 0; }
explicit Time( TimeInitSystem );
explicit Time( sal_Int64 _nTime ) { Time::nTime = _nTime; }
Time( const tools::Time& rTime );
Time( const css::util::Time& rTime );
explicit Time( const css::util::DateTime& rDateTime );
Time( sal_uInt32 nHour, sal_uInt32 nMin,
sal_uInt32 nSec = 0, sal_uInt64 nNanoSec = 0 );
void SetTime( sal_Int64 nNewTime ) { nTime = nNewTime; }
sal_Int64 GetTime() const { return nTime; }
css::util::Time GetUNOTime() const { return css::util::Time(GetNanoSec(),GetSec(),GetMin(),GetHour(),false); }
void SetHour( sal_uInt16 nNewHour );
void SetMin( sal_uInt16 nNewMin );
void SetSec( sal_uInt16 nNewSec );
void SetNanoSec( sal_uInt32 nNewNanoSec );
sal_uInt16 GetHour() const
{ sal_uInt64 nTempTime = (nTime >= 0) ? nTime : -nTime;
return static_cast<sal_uInt16>(nTempTime / SAL_CONST_UINT64(10000000000000)); }
sal_uInt16 GetMin() const
{ sal_uInt64 nTempTime = (nTime >= 0) ? nTime : -nTime;
return static_cast<sal_uInt16>((nTempTime / SAL_CONST_UINT64(100000000000)) % 100); }
sal_uInt16 GetSec() const
{ sal_uInt64 nTempTime = (nTime >= 0) ? nTime : -nTime;
return static_cast<sal_uInt16>((nTempTime / SAL_CONST_UINT64(1000000000)) % 100); }
sal_uInt32 GetNanoSec() const
{ sal_uInt64 nTempTime = (nTime >= 0) ? nTime : -nTime;
return static_cast<sal_uInt32>( nTempTime % SAL_CONST_UINT64(1000000000)); }
// TODO: consider removing GetMSFromTime and MakeTimeFromMS?
sal_Int32 GetMSFromTime() const;
void MakeTimeFromMS( sal_Int32 nMS );
sal_Int64 GetNSFromTime() const;
void MakeTimeFromNS( sal_Int64 nNS );
/// 12 hours == 0.5 days
double GetTimeInDays() const;
/** Get the wall clock time particles for a (date+)time value.
Does the necessary rounding and truncating to obtain hour, minute,
second and fraction of second from a double time value (time in days,
0.5 == 12h) such that individual values are not rounded up, i.e.
x:59:59.999 does not yield x+1:0:0.00
A potential date component (fTimeInDays >= 1.0) is discarded.
@param nFractionDecimals
If > 0 fFractionOfSecond is truncated to that amount of
decimals.
Else fFractionOfSecond returns the full remainder of the
fractional second.
*/
static void GetClock( double fTimeInDays,
sal_uInt16& nHour, sal_uInt16& nMinute, sal_uInt16& nSecond,
double& fFractionOfSecond, int nFractionDecimals );
bool IsEqualIgnoreNanoSec( const tools::Time& rTime ) const;
bool operator ==( const tools::Time& rTime ) const
{ return (nTime == rTime.nTime); }
bool operator !=( const tools::Time& rTime ) const
{ return (nTime != rTime.nTime); }
bool operator >( const tools::Time& rTime ) const
{ return (nTime > rTime.nTime); }
bool operator <( const tools::Time& rTime ) const
{ return (nTime < rTime.nTime); }
bool operator >=( const tools::Time& rTime ) const
{ return (nTime >= rTime.nTime); }
bool operator <=( const tools::Time& rTime ) const
{ return (nTime <= rTime.nTime); }
static Time GetUTCOffset();
/**
* Elapsed time in milliseconds (1e-3) since some unspecified starting point
*
* Convenience function, which just calls GetMonotonicTicks() / 1000.
*/
static sal_uInt64 GetSystemTicks();
/**
* Elapsed time in microseconds (1e-6) since some unspecified starting point
*
* Uses the high-precision, monotonic time sources provided by the OS, if
* available. Don't try to relate it to the system time, and also it's long
* time accuracy is not the best.
*
* Currently used to measure the runtime of OpenCL shaders and to set a
* message creation timestamp to allow filtering of invalid timer messages.
*
* @return current system ticks in microseconds (1e-6s)
*/
static sal_uInt64 GetMonotonicTicks();
tools::Time& operator =( const tools::Time& rTime );
Time operator -() const
{ return Time( -nTime ); }
tools::Time& operator +=( const tools::Time& rTime );
tools::Time& operator -=( const tools::Time& rTime );
TOOLS_DLLPUBLIC friend Time operator +( const tools::Time& rTime1, const tools::Time& rTime2 );
TOOLS_DLLPUBLIC friend Time operator -( const tools::Time& rTime1, const tools::Time& rTime2 );
};
} /* namespace tools */
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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