com.hazelcast.spi.hotrestart.impl.gc.mem

Class MmapMalloc

java.lang.Object

com.hazelcast.spi.hotrestart.impl.gc.mem.MmapMalloc

All Implemented Interfaces:

com.hazelcast.internal.memory.MemoryAllocator, com.hazelcast.nio.Disposable

public class MmapMalloc
extends Object
implements com.hazelcast.internal.memory.MemoryAllocator, com.hazelcast.nio.Disposable

Allocator based on memory-mapped files. Uses a set of MmapSlabs, one for each block size.

Field Summary

Fields inherited from interface com.hazelcast.internal.memory.MemoryAllocator

NULL_ADDRESS

Constructor Summary

Constructors

Constructor and Description
MmapMalloc(File baseDir, boolean deleteEmptySlab)

Method Summary

Modifier and Type	Method and Description
long	allocate(long size)
void	dispose()
void	free(long address, long size)
long	reallocate(long address, long currentSize, long newSize)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MmapMalloc

public MmapMalloc(File baseDir,
                  boolean deleteEmptySlab)

Method Detail

allocate

public long allocate(long size)

Specified by:

allocate in interface com.hazelcast.internal.memory.MemoryAllocator

reallocate

public long reallocate(long address,
                       long currentSize,
                       long newSize)

Specified by:

reallocate in interface com.hazelcast.internal.memory.MemoryAllocator

free

public void free(long address,
                 long size)

Specified by:

free in interface com.hazelcast.internal.memory.MemoryAllocator

dispose

public void dispose()

Specified by:

dispose in interface com.hazelcast.nio.Disposable