int TItemList::Reduce(int length)
{
int remain = length;
while(remain > 0 && Size() > 0)
{
TItem* pItem = Front();
remain -= pItem->Reduce(remain);
if(pItem->IsEmpty())
itPool.PutFreeItem(PopFront());
}
return length - remain;
}
int TItemList::Fetch(BYTE* pData, int length)
{
int remain = length;
while(remain > 0 && Size() > 0)
{
TItem* pItem = Front();
int fetch = pItem->Fetch(pData, remain);
pData += fetch;
remain -= fetch;
if(pItem->IsEmpty())
itPool.PutFreeItem(PopFront());
}
return length - remain;
}