vcl/source/app/timer.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <tools/time.hxx>
  21 #include <vcl/timer.hxx>
  22 #include "saltimer.hxx"
  23
  24 void Timer::SetDeletionFlags()
  25 {
  26     // If no AutoTimer, then stop.
  27     if ( !mbAuto )
  28         Task::SetDeletionFlags();
  29 }
  30
  31 bool Timer::ReadyForSchedule( bool /* bIdle */, sal_uInt64 nTimeNow ) const
  32 {
  33     return (GetSchedulerData()->mnUpdateTime + mnTimeout) <= nTimeNow;
  34 }
  35
  36 bool Timer::IsIdle() const
  37 {
  38     return false;
  39 }
  40
  41 sal_uInt64 Timer::UpdateMinPeriod( sal_uInt64 nMinPeriod, sal_uInt64 nTimeNow ) const
  42 {
  43     sal_uInt64 nWakeupTime = GetSchedulerData()->mnUpdateTime + mnTimeout;
  44     if( nWakeupTime <= nTimeNow )
  45         return Scheduler::ImmediateTimeoutMs;
  46     else
  47     {
  48         sal_uInt64 nSleepTime = nWakeupTime - nTimeNow;
  49         return ( nSleepTime < nMinPeriod ) ? nSleepTime : nMinPeriod;
  50     }
  51 }
  52
  53 Timer::Timer( bool bAuto, const sal_Char *pDebugName )
  54     : Task( pDebugName )
  55     , mnTimeout( Scheduler::ImmediateTimeoutMs )
  56     , mbAuto( bAuto )
  57 {
  58     SetPriority( TaskPriority::HIGHEST );
  59 }
  60
  61 Timer::Timer( const sal_Char *pDebugName )
  62     : Timer( false, pDebugName )
  63 {
  64 }
  65
  66 Timer::Timer( const Timer& rTimer )
  67     : Timer( rTimer.mbAuto, rTimer.GetDebugName() )
  68 {
  69     maInvokeHandler = rTimer.maInvokeHandler;
  70     mnTimeout = rTimer.mnTimeout;
  71 }
  72
  73 Timer::~Timer()
  74 {
  75 }
  76
  77 Timer& Timer::operator=( const Timer& rTimer )
  78 {
  79     Task::operator=( rTimer );
  80     maInvokeHandler = rTimer.maInvokeHandler;
  81     mnTimeout = rTimer.mnTimeout;
  82     SAL_WARN_IF( mbAuto != rTimer.mbAuto, "vcl.schedule",
  83         "Copying Timer with different mbAuto value!" );
  84     return *this;
  85 }
  86
  87 void Timer::Invoke()
  88 {
  89     maInvokeHandler.Call( this );
  90 }
  91
  92 void Timer::Invoke( Timer *arg )
  93 {
  94     maInvokeHandler.Call( arg );
  95 }
  96
  97 void Timer::Start()
  98 {
  99     Task::Start();
 100     Task::StartTimer( mnTimeout );
 101 }
 102
 103 void Timer::SetTimeout( sal_uInt64 nNewTimeout )
 104 {
 105     mnTimeout = nNewTimeout;
 106     // If timer is active, then renew clock.
 107     if ( IsActive() )
 108         StartTimer( mnTimeout );
 109 }
 110
 111 AutoTimer::AutoTimer( const sal_Char *pDebugName )
 112     : Timer( true, pDebugName )
 113 {
 114 }
 115
 116 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */