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Diffstat (limited to 'include/salhelper/timer.hxx')
| -rw-r--r-- | include/salhelper/timer.hxx | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/include/salhelper/timer.hxx b/include/salhelper/timer.hxx new file mode 100644 index 000000000..f6e67f454 --- /dev/null +++ b/include/salhelper/timer.hxx @@ -0,0 +1,222 @@ +/* -*- 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: */ |