/// <summary>
/// Enqueue an item into the specified priority queue
/// </summary>
public bool Enqueue(uint pqueue, EntityUpdate value)
{
LookupItem lookup;
IHandle lookupH;
UInt64 entry;
uint localid = value.Entity.LocalId;
if (m_lookupTable.TryGetValue(localid, out lookup))
{
lookupH = lookup.Handle;
entry = lookup.Heap[lookupH].EntryOrder;
value.Update(lookup.Heap[lookupH].Value);
lookup.Heap.Remove(lookupH);
}
else
{
entry = m_nextRequest++;
++m_added;
}
pqueue = Util.Clamp <uint>(pqueue, 0, NumberOfQueues - 1);
lookup.Heap = m_heaps[pqueue];
lookup.Heap.Add(new MinHeapItem(pqueue, entry, value), ref lookup.Handle);
m_lookupTable[localid] = lookup;
return(true);
}
/// <summary>
/// Reapply the prioritization function to each of the updates currently
/// stored in the priority queues.
/// </summary
public void Reprioritize(UpdatePriorityHandler handler)
{
MinHeapItem item;
foreach (LookupItem lookup in new List <LookupItem>(m_lookupTable.Values))
{
if (lookup.Heap.TryGetValue(lookup.Handle, out item))
{
uint pqueue = item.PriorityQueue;
uint localid = item.Value.Entity.LocalId;
if (handler(ref pqueue, item.Value.Entity))
{
// unless the priority queue has changed, there is no need to modify
// the entry
pqueue = Util.Clamp <uint>(pqueue, 0, NumberOfQueues - 1);
if (pqueue != item.PriorityQueue)
{
lookup.Heap.Remove(lookup.Handle);
LookupItem litem = lookup;
litem.Heap = m_heaps[pqueue];
litem.Heap.Add(new MinHeapItem(pqueue, item), ref litem.Handle);
m_lookupTable[localid] = litem;
}
}
else
{
// m_log.WarnFormat("[PQUEUE]: UpdatePriorityHandler returned false for {0}",item.Value.Entity.UUID);
lookup.Heap.Remove(lookup.Handle);
m_lookupTable.Remove(localid);
}
}
}
}
// Make sure user specified region sizes are sane.
// Must be multiples of legacy region size (256).
private void DoRegionSizeSanityChecks()
{
if (RegionSizeX != Constants.RegionSize || RegionSizeY != Constants.RegionSize)
{
// Doing non-legacy region sizes.
// Enforce region size to be multiples of the legacy region size (256)
uint partial = RegionSizeX % Constants.RegionSize;
if (partial != 0)
{
RegionSizeX -= partial;
if (RegionSizeX == 0)
{
RegionSizeX = Constants.RegionSize;
}
m_log.ErrorFormat("{0} Region size must be multiple of {1}. Enforcing {2}.RegionSizeX={3} instead of specified {4}",
LogHeader, Constants.RegionSize, m_regionName, RegionSizeX, RegionSizeX + partial);
}
partial = RegionSizeY % Constants.RegionSize;
if (partial != 0)
{
RegionSizeY -= partial;
if (RegionSizeY == 0)
{
RegionSizeY = Constants.RegionSize;
}
m_log.ErrorFormat("{0} Region size must be multiple of {1}. Enforcing {2}.RegionSizeY={3} instead of specified {4}",
LogHeader, Constants.RegionSize, m_regionName, RegionSizeY, RegionSizeY + partial);
}
// Because of things in the viewer, regions MUST be square.
// Remove this check when viewers have been updated.
if (RegionSizeX != RegionSizeY)
{
uint minSize = Math.Min(RegionSizeX, RegionSizeY);
RegionSizeX = minSize;
RegionSizeY = minSize;
m_log.ErrorFormat("{0} Regions must be square until viewers are updated. Forcing region {1} size to <{2},{3}>",
LogHeader, m_regionName, RegionSizeX, RegionSizeY);
}
// There is a practical limit to region size.
if (RegionSizeX > Constants.MaximumRegionSize || RegionSizeY > Constants.MaximumRegionSize)
{
RegionSizeX = Util.Clamp <uint>(RegionSizeX, Constants.RegionSize, Constants.MaximumRegionSize);
RegionSizeY = Util.Clamp <uint>(RegionSizeY, Constants.RegionSize, Constants.MaximumRegionSize);
m_log.ErrorFormat("{0} Region dimensions must be less than {1}. Clamping {2}'s size to <{3},{4}>",
LogHeader, Constants.MaximumRegionSize, m_regionName, RegionSizeX, RegionSizeY);
}
m_log.InfoFormat("{0} Region {1} size set to <{2},{3}>", LogHeader, m_regionName, RegionSizeX, RegionSizeY);
}
}
