Timer: added new saltimer handling

Change-Id: Icdc5abf9dca727a8cc312ddb5861f7a34a38bbe1

include/vcl/scheduler.hxx

@@ -60,6 +60,7 @@ protected:
     friend struct ImplSchedulerData;
     virtual void SetDeletionFlags();
     virtual bool ReadyForSchedule( bool bTimer ) { return !bTimer; }
+    virtual sal_uLong UpdateMinPeriod( sal_uLong nMinPeriod, sal_uLong nTime );
 
 public:
     Scheduler();
@@ -79,7 +80,7 @@ public:
 
     bool            IsActive() const { return mbActive; }
 
-    Scheduler&          operator=( const Scheduler& Scheduler );
+    Scheduler&          operator=( const Scheduler& rScheduler );
     static void ImplDeInitScheduler();
 
     /// Process all pending idle tasks ahead of time in priority order.

include/vcl/timer.hxx

@@ -32,6 +32,7 @@ protected:
 
     void SetDeletionFlags() SAL_OVERRIDE;
     bool ReadyForSchedule( bool bTimer ) SAL_OVERRIDE;
+    sal_uLong UpdateMinPeriod( sal_uLong nMinPeriod, sal_uLong nTime ) SAL_OVERRIDE;
 
 public:
     Timer();
@@ -44,9 +45,10 @@ public:
     void            SetTimeoutHdl( const Link& rLink ) { maTimeoutHdl = rLink; }
     const Link&     GetTimeoutHdl() const { return maTimeoutHdl; }
     virtual void    Invoke() SAL_OVERRIDE;
-    void    Timeout() { Invoke(); }
+    void            Timeout() { Invoke(); }
     Timer&          operator=( const Timer& rTimer );
     void            Start() SAL_OVERRIDE;
+    static void     ImplStartTimer( ImplSVData* pSVData, sal_uLong nMS );
 };
 
 /// An auto-timer is a multi-shot timer re-emitting itself at

vcl/source/app/scheduler.cxx

@@ -20,6 +20,8 @@
 #include <svdata.hxx>
 #include <tools/time.hxx>
 #include <vcl/scheduler.hxx>
+#include <vcl/timer.hxx>
+#include <saltimer.hxx>
 
 void ImplSchedulerData::Invoke()
 {
@@ -70,6 +72,10 @@ void Scheduler::ImplDeInitScheduler()
 {
     ImplSVData*     pSVData = ImplGetSVData();
     ImplSchedulerData*  pSchedulerData = pSVData->mpFirstSchedulerData;
+    if (pSVData->mpSalTimer)
+    {
+        pSVData->mpSalTimer->Stop();
+    }
 
     if ( pSchedulerData )
     {
@@ -87,7 +93,11 @@ void Scheduler::ImplDeInitScheduler()
         while ( pSchedulerData );
 
         pSVData->mpFirstSchedulerData   = NULL;
+        pSVData->mnTimerPeriod      = 0;
     }
+
+    delete pSVData->mpSalTimer;
+    pSVData->mpSalTimer = 0;
 }
 
 void Scheduler::CallbackTaskScheduling(bool ignore)
@@ -102,19 +112,26 @@ void Scheduler::ProcessTaskScheduling( bool bTimer )
     ImplSchedulerData* pSchedulerData = NULL;
     ImplSchedulerData* pPrevSchedulerData = NULL;
     ImplSVData*        pSVData = ImplGetSVData();
+    sal_uLong          nTime = tools::Time::GetSystemTicks();
+    sal_uLong          nMinPeriod = ((sal_uLong)0xFFFFFFFF);
     pSVData->mnTimerUpdate++;
 
     if ((pSchedulerData = ImplSchedulerData::GetMostImportantTask(bTimer)))
     {
-        pSchedulerData->mnUpdateTime = tools::Time::GetSystemTicks();
+        pSchedulerData->mnUpdateTime = nTime;
         pSchedulerData->Invoke();
     }
 
     pSchedulerData = pSVData->mpFirstSchedulerData;
     while ( pSchedulerData )
     {
+        if( pSchedulerData->mbInScheduler )
+        {
+            pPrevSchedulerData = pSchedulerData;
+            pSchedulerData = pSchedulerData->mpNext;
+        }
         // Should Task be released from scheduling?
-        if ( pSchedulerData->mbDelete )
+        else if ( pSchedulerData->mbDelete )
         {
             if ( pPrevSchedulerData )
                 pPrevSchedulerData->mpNext = pSchedulerData->mpNext;
@@ -128,15 +145,31 @@ void Scheduler::ProcessTaskScheduling( bool bTimer )
         }
         else
         {
-            if( !pSchedulerData->mbInScheduler )
-                pSchedulerData->mnUpdateStack = 0;
+            pSchedulerData->mnUpdateStack = 0;
+            nMinPeriod = pSchedulerData->mpScheduler->UpdateMinPeriod( nMinPeriod, nTime );
             pPrevSchedulerData = pSchedulerData;
             pSchedulerData = pSchedulerData->mpNext;
         }
     }
+
+    // delete clock if no more timers available
+    if ( !pSVData->mpFirstSchedulerData )
+    {
+        if ( pSVData->mpSalTimer )
+            pSVData->mpSalTimer->Stop();
+        pSVData->mnTimerPeriod = ((sal_uLong)0xFFFFFFFF);
+    }
+    else
+        Timer::ImplStartTimer( pSVData, nMinPeriod );
     pSVData->mnTimerUpdate--;
 }
 
+sal_uLong Scheduler::UpdateMinPeriod( sal_uLong nMinPeriod, sal_uLong nTime )
+{
+    (void)nTime;
+    return nMinPeriod;
+}
+
 void Scheduler::SetPriority( SchedulerPriority ePriority )
 {
     meDefaultPriority = ePriority;

vcl/source/app/timer.cxx

@@ -26,7 +26,7 @@
 
 #define MAX_TIMER_PERIOD    ((sal_uLong)0xFFFFFFFF)
 
-static void ImplStartTimer( ImplSVData* pSVData, sal_uLong nMS )
+void Timer::ImplStartTimer( ImplSVData* pSVData, sal_uLong nMS )
 {
     if ( !nMS )
         nMS = 1;
@@ -55,6 +55,33 @@ bool Timer::ReadyForSchedule( bool bTimer )
     return (mpSchedulerData->mnUpdateTime + mnTimeout) <= tools::Time::GetSystemTicks();
 }
 
+sal_uLong Timer::UpdateMinPeriod( sal_uLong nMinPeriod, sal_uLong nTime )
+{
+    sal_uLong nNewTime = tools::Time::GetSystemTicks();
+    sal_uLong nDeltaTime;
+    //determine smallest time slot
+    if( mpSchedulerData->mnUpdateTime == nTime )
+    {
+       nDeltaTime = mnTimeout;
+       if( nDeltaTime < nMinPeriod )
+           nMinPeriod = nDeltaTime;
+    }
+    else
+    {
+        nDeltaTime = mpSchedulerData->mnUpdateTime + mnTimeout;
+        if( nDeltaTime < nNewTime )
+            nMinPeriod = 1;
+        else
+        {
+            nDeltaTime -= nNewTime;
+            if( nDeltaTime < nMinPeriod )
+                nMinPeriod = nDeltaTime;
+        }
+    }
+
+    return nMinPeriod;
+}
+
 Timer::Timer() : Scheduler()
 {
     mnTimeout = 1;
@@ -86,7 +113,7 @@ void Timer::Start()
         pSVData->mpSalTimer->SetCallback( CallbackTaskScheduling );
     }
     if ( mnTimeout < pSVData->mnTimerPeriod )
-        ImplStartTimer( pSVData, mnTimeout );
+        Timer::ImplStartTimer( pSVData, mnTimeout );
 }
 
 void Timer::SetTimeout( sal_uLong nNewTimeout )
@@ -97,7 +124,7 @@ void Timer::SetTimeout( sal_uLong nNewTimeout )
     {
         ImplSVData* pSVData = ImplGetSVData();
         if ( !pSVData->mnTimerUpdate && (mnTimeout < pSVData->mnTimerPeriod) )
-            ImplStartTimer( pSVData, mnTimeout );
+            Timer::ImplStartTimer( pSVData, mnTimeout );
     }
 }