diff -r 000000000000 -r 4e1aa6a622a0 hwrmhaptics/hapticspluginmanager/src/hwrmhapticsgenerictimer.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hwrmhaptics/hapticspluginmanager/src/hwrmhapticsgenerictimer.cpp Tue Feb 02 00:53:00 2010 +0200 @@ -0,0 +1,184 @@ +/* +* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Haptics generic timer class definition. +* +*/ + + +#include +#include "hwrmhapticsgenerictimer.h" +#include "hwrmhapticstrace.h" + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::NewL +// Two-phased constructor. +// ----------------------------------------------------------------------------- +// +CHWRMHapticsGenericTimer* CHWRMHapticsGenericTimer::NewL( + MHWRMHapticsGenericTimerCallback* aCallback, + const TTimeIntervalMicroSeconds32& aMaxTime, + TInt aTimerId ) + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::NewL(0x%x, 0x%x, 0x%x)" ), aCallback, aMaxTime.Int(), aTimerId ) ); + + CHWRMHapticsGenericTimer* self = new ( ELeave ) CHWRMHapticsGenericTimer( + aCallback, + aMaxTime, + aTimerId ); + CleanupStack::PushL( self ); + self->ConstructL(); //base call + CleanupStack::Pop( self ); + + CActiveScheduler::Add( self ); + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::NewL - return 0x%x" ), self ) ); + return self; + } + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::CHWRMHapticsGenericTimer +// Constructor with callback class as a parameter. +// ----------------------------------------------------------------------------- +// +CHWRMHapticsGenericTimer::CHWRMHapticsGenericTimer( + MHWRMHapticsGenericTimerCallback* aCallback, + const TTimeIntervalMicroSeconds32& aMaxTime, + TInt aTimerId ) + : CTimer( EPriorityHigh ), + iCallback( aCallback ), + iMaximumTime( aMaxTime ), + iCutOff( EFalse ), + iTimerId( aTimerId ) + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::CHWRMHapticsGenericTimer(0x%x, 0x%x)" ), aCallback, aMaxTime.Int() ) ); + + __ASSERT_ALWAYS( aCallback, User::Invariant() ); + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::CHWRMHapticsGenericTimer - return" ) ) ); + } + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::~CHWRMHapticsGenericTimer +// Destructor. +// ----------------------------------------------------------------------------- +// +CHWRMHapticsGenericTimer::~CHWRMHapticsGenericTimer() + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::~CHWRMHapticsGenericTimer()" ) ) ); + + iCallback = NULL; + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::~CHWRMHapticsGenericTimer - return" ) ) ); + } + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::Set +// Start the timer to complete after the specified number of microseconds. +// If the duration is zero, then timer is set to predefined maximum value. +// ----------------------------------------------------------------------------- +// +void CHWRMHapticsGenericTimer::Set(const TTimeIntervalMicroSeconds32& aInterval) + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::Set(%d)" ), aInterval.Int() ) ); + + __ASSERT_ALWAYS( CActiveScheduler::Current(), User::Invariant() ); + + if ( IsActive() ) + { + Cancel(); + } + + // And set the new timer. If timer has specified maximum time, enforce that. + TTime now; + now.UniversalTime(); + + if ( iMaximumTime.Int() != 0 && ( 0 == aInterval.Int() || aInterval > iMaximumTime ) ) + { + // Maximum time has been specified, and interval parameter is such that + // it should be enforced + iActivationTime = now + iMaximumTime; + + After( iMaximumTime ); + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::Set - Using Maximum time %d" ), iMaximumTime.Int() ) ); + iCutOff = ETrue; + } + else if ( iMaximumTime.Int() == 0 && aInterval.Int() == 0 ) + { + // No maximum time specified and interval calls for infinite duration. + // --> Do not set the timer at all. + } + else + { + // Otherwise just set the time to specified interval. + iActivationTime = now + aInterval; + After( aInterval ); + iCutOff = EFalse; + } + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::Set - return" ) ) ); + } + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::Freeze +// Stop timer and returns the remaining time +// ----------------------------------------------------------------------------- +// +TTimeIntervalMicroSeconds32 CHWRMHapticsGenericTimer::Freeze() + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::Freeze()" ) ) ); + + // Must use 64 bit version as no way to get TTimeIntervalMicroSeconds32 from TTime. + TTimeIntervalMicroSeconds frozenTime = 0LL; + + if ( IsAdded() && IsActive() ) + { + Cancel(); + + TTime now; + now.UniversalTime(); + frozenTime = iActivationTime.MicroSecondsFrom( now ); + if ( frozenTime.Int64() <= 0 ) + { + // Should have activated by now, set freeze timer to 1 for instant activation + // after unfreeze. + frozenTime = 1LL; + } + } + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::Freeze - return %d" ), frozenTime.Int64() ) ); + + // Loss of precision ok, as frozentime never exceeds 32 bits. + return frozenTime.Int64(); + } + +// ----------------------------------------------------------------------------- +// CHWRMHapticsGenericTimer::RunL +// RunL() function will be run after the specified system time expires, +// i.e. time is set by After() method, +// ----------------------------------------------------------------------------- +void CHWRMHapticsGenericTimer::RunL() + { + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::RunL()" ) ) ); + + __ASSERT_ALWAYS( iCallback, User::Invariant() ); + + iCallback->GenericTimerFired( iTimerId, iCutOff ); + + COMPONENT_TRACE( ( _L( "HWRMHaptics Server - CHWRMHapticsGenericTimer::RunL - return" ) ) ); + } + +// End of File