/// <exception cref="Org.Apache.Hadoop.FS.InvalidRequestException"/>
public virtual void UnregisterSlot(ShortCircuitShm.SlotId slotId)
{
lock (this)
{
if (!enabled)
{
if (Log.IsTraceEnabled())
{
Log.Trace("unregisterSlot: ShortCircuitRegistry is " + "not enabled.");
}
throw new NotSupportedException();
}
ShortCircuitShm.ShmId shmId = slotId.GetShmId();
ShortCircuitRegistry.RegisteredShm shm = segments[shmId];
if (shm == null)
{
throw new InvalidRequestException("there is no shared memory segment " + "registered with shmId "
+ shmId);
}
ShortCircuitShm.Slot slot = shm.GetSlot(slotId.GetSlotIdx());
slot.MakeInvalid();
shm.UnregisterSlot(slotId.GetSlotIdx());
slots.Remove(slot.GetBlockId(), slot);
}
}
/// <exception cref="Org.Apache.Hadoop.FS.InvalidRequestException"/>
public virtual void RegisterSlot(ExtendedBlockId blockId, ShortCircuitShm.SlotId
slotId, bool isCached)
{
lock (this)
{
if (!enabled)
{
if (Log.IsTraceEnabled())
{
Log.Trace(this + " can't register a slot because the " + "ShortCircuitRegistry is not enabled."
);
}
throw new NotSupportedException();
}
ShortCircuitShm.ShmId shmId = slotId.GetShmId();
ShortCircuitRegistry.RegisteredShm shm = segments[shmId];
if (shm == null)
{
throw new InvalidRequestException("there is no shared memory segment " + "registered with shmId "
+ shmId);
}
ShortCircuitShm.Slot slot = shm.RegisterSlot(slotId.GetSlotIdx(), blockId);
if (isCached)
{
slot.MakeAnchorable();
}
else
{
slot.MakeUnanchorable();
}
bool added = slots.Put(blockId, slot);
Preconditions.CheckState(added);
if (Log.IsTraceEnabled())
{
Log.Trace(this + ": registered " + blockId + " with slot " + slotId + " (isCached="
+ isCached + ")");
}
}
}