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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_SALHELPER_TIMER_HXX
#define INCLUDED_SALHELPER_TIMER_HXX
#include "salhelper/simplereferenceobject.hxx"
#include "osl/time.h"
#include "salhelper/salhelperdllapi.h"
namespace salhelper
{
/** Helper class for easier manipulation with TimeValue.
*
* Times are seconds in UTC since 01.01.1970
*/
struct SAL_WARN_UNUSED TTimeValue : public TimeValue
{
TTimeValue()
{
Seconds = 0;
Nanosec = 0;
}
TTimeValue( sal_uInt32 Secs, sal_uInt32 Nano )
{
Seconds = Secs;
Nanosec = Nano;
normalize();
}
TTimeValue(sal_uInt32 MilliSecs)
{
Seconds = MilliSecs / 1000;
Nanosec = (MilliSecs % 1000) * 1000000L;
normalize();
}
TTimeValue( const TimeValue& rTimeValue )
{
Seconds = rTimeValue.Seconds;
Nanosec = rTimeValue.Nanosec;
normalize();
}
void SAL_CALL normalize()
{
if ( Nanosec > 1000000000 )
{
Seconds += Nanosec / 1000000000;
Nanosec %= 1000000000;
}
}
void SAL_CALL addTime( const TTimeValue& Delta )
{
Seconds += Delta.Seconds;
Nanosec += Delta.Nanosec;
normalize();
}
bool SAL_CALL isEmpty() const
{
return ( ( Seconds == 0 ) && ( Nanosec == 0 ) );
}
};
inline bool operator<( const TTimeValue& rTimeA, const TTimeValue& rTimeB )
{
if ( rTimeA.Seconds < rTimeB.Seconds )
return true;
else if ( rTimeA.Seconds > rTimeB.Seconds )
return false;
else
return ( rTimeA.Nanosec < rTimeB.Nanosec );
}
inline bool operator>( const TTimeValue& rTimeA, const TTimeValue& rTimeB )
{
if ( rTimeA.Seconds > rTimeB.Seconds )
return true;
else if ( rTimeA.Seconds < rTimeB.Seconds )
return false;
else
return ( rTimeA.Nanosec > rTimeB.Nanosec );
}
inline bool operator==( const TTimeValue& rTimeA, const TTimeValue& rTimeB )
{
return ( ( rTimeA.Seconds == rTimeB.Seconds ) &&
( rTimeA.Nanosec == rTimeB.Nanosec ) );
}
class TimerManager;
/** Interface for the Timer and handling the event
*/
class SALHELPER_DLLPUBLIC Timer : public salhelper::SimpleReferenceObject
{
public:
/** Constructor.
*/
Timer();
/** Constructor.
*/
Timer( const TTimeValue& Time );
/** Constructor.
*/
Timer( const TTimeValue& Time, const TTimeValue& RepeatTime );
/** Start timer.
*/
void SAL_CALL start();
/** Abort timer prematurely.
*/
void SAL_CALL stop();
/** Returns sal_True if timer is running.
*/
sal_Bool SAL_CALL isTicking() const;
/** Is the timer expired?
*/
sal_Bool SAL_CALL isExpired() const;
/** Does pTimer expires before us?
*/
sal_Bool SAL_CALL expiresBefore( const Timer* pTimer ) const;
/** Set the absolute time when the timer should fire.
*/
void SAL_CALL setAbsoluteTime( const TTimeValue& Time );
/** Set the time to fire to 'now' + Remaining.
*/
void SAL_CALL setRemainingTime( const TTimeValue& Remaining );
/** Set the time to fire to 'now' + Remaining with repeat interveal
* Repeat.
*/
void SAL_CALL setRemainingTime( const TTimeValue& Remaining, const TTimeValue& Repeat );
/** Adds Time to the 'fire time'.
*/
void SAL_CALL addTime( const TTimeValue& Time );
/** Returns the remaining time before timer expiration relative to now.
*/
TTimeValue SAL_CALL getRemainingTime() const;
protected:
/** Destructor.
*/
virtual ~Timer() SAL_OVERRIDE;
/** What should be done when the 'timer fires'.
*/
virtual void SAL_CALL onShot() = 0;
protected:
/** holds (initial) expiration time of this timer.
*/
TTimeValue m_aTimeOut;
/** holds the time of expiration of this timer.
*/
TTimeValue m_aExpired;
/** holds the time interveal of successive expirations.
*/
TTimeValue m_aRepeatDelta;
/** Pointer to the next timer (to fire).
*/
Timer* m_pNext;
private:
/** Copy constructor deleted.
*/
Timer( const Timer& rTimer ) SAL_DELETED_FUNCTION;
/** Copy assignment operator deleted.
*/
void SAL_CALL operator=( const Timer& rTimer ) SAL_DELETED_FUNCTION;
friend class TimerManager;
};
}
#endif // INCLUDED_SALHELPER_TIMER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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