/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.rwstore;
import java.io.DataInputStream;
import java.util.ArrayList;
import java.util.concurrent.atomic.AtomicLong;
import com.bigdata.rawstore.IAllocationContext;
import com.bigdata.rwstore.RWStore.AllocationStats;
public interface Allocator extends Comparable {
public int getBlockSize();
public void setIndex(int index);
public boolean verify(int addr);
public long getStartAddr();
public boolean addressInRange(int addr);
public boolean free(int addr, int size);
public int alloc(RWStore store, int size, IAllocationContext context);
public int getDiskAddr();
public void setDiskAddr(int addr);
public long getPhysicalAddress(int offset);
public boolean isAllocated(int offset);
public int getPhysicalSize(int offset);
public byte[] write();
public void read(DataInputStream str);
public boolean hasFree();
public void setFreeList(ArrayList list);
public String getStats(AtomicLong counter);
public void addAddresses(ArrayList addrs);
public int getRawStartAddr();
public int getIndex();
public void appendShortStats(StringBuilder str, AllocationStats[] stats);
public boolean canImmediatelyFree(int addr, int size, IAllocationContext context);
}