void CVwsEventQueue::HandleEventProcessed()
{
if (iQueueSize==1)
{
Head()->HandleLastOnQueue();
DeleteHead();
LOG3(CVwsLog::ELoud,_L("Completed event at head of %S, queue empty"),&iQueueName);
iState=EEmpty;
}
else if (iQueueSize>0)
{
DeleteHead();
LOG4(CVwsLog::ELoud,_L("Completed event at head of %S, processing next [queue size %d]"),&iQueueName,iQueueSize);
// Start processing next event in the queue.
TInt err=KErrGeneral;
while (iQueueSize>0 && err)
{
TRAP(err, Head()->ProcessEventL());
if (err)
{
DeleteHead();
if (0==iQueueSize)
{
iState=EEmpty;
}
}
}
}
}
/*
* Every so often, delete some entries in the list.
*/
DWORD WINAPI DeleteThreadFunc(LPVOID n)
{
int i;
for (i=0; i<100; i++)
{
Sleep(1);
AcquireWriteLock(&gpList->lock);
DeleteHead(gpList);
DeleteHead(gpList);
DeleteHead(gpList);
ReleaseWriteLock(&gpList->lock);
}
return 0;
}
int LinkedList::Pop() { // get head and remove first node
if (IsEmpty()) throw(1);
int iNode = nodeHead->nodeId;
DeleteHead();
return iNode;
}
void CVwsEventQueue::KickStart()
{
//Attempt to restart stalled q
DeleteHead();
iState=EEmpty;
TInt err = KErrGeneral;
while(iQueueSize>0 && err)
{
iState=EProcessing;
TRAP(err, Head()->ProcessEventL());
if (err)
{
DeleteHead();
iState=EEmpty;
}
}
}
void CNodeList::DeleteAll()
{
while(pHead != 0)
{
DeleteHead();
}
pTail = 0;
nNodeCount = 0;
}
BOOL DeleteList(List *pList)
{
AcquireWriteLock(&pList->lock);
while (DeleteHead(pList))
;
ReleaseWriteLock(&pList->lock);
DestroyRWLock(&gpList->lock);
GlobalFree(pList);
return TRUE;
}
Lista *Pop(Lista *L,int *x)
{
if (L==NULL)
{
*x=-1;
return NULL;
}
else
{
*x=L->inf;
L=DeleteHead(L);
return L;
}
}
void CVwsEventQueue::ProcessEventL(CVwsEvent* aEvent)
{
TInt err=AddToTail(aEvent);
if(err!=KErrNone)
{
if(aEvent!=NULL)
{
delete aEvent;
aEvent=NULL;
}
User::Leave(err);
}
if (aEvent)
{
switch (iState)
{
case EEmpty:
{
iState=EProcessing;
TRAPD(err,aEvent->ProcessEventL());
if (err)
{
DeleteHead();
iState=EEmpty;
}
User::LeaveIfError(err);
}
break;
case EProcessing:
// Wait until current event has finished being processed.
break;
default:
ASSERT(EFalse);
}
}
}
LinkedList::~LinkedList() {
while (nodeHead != NULL)
DeleteHead();
}
