one.nio.mem

Class ArenaAllocator

java.lang.Object

one.nio.mem.ArenaAllocator

All Implemented Interfaces:

Allocator

public class ArenaAllocator
extends java.lang.Object
implements Allocator

Fast arena-based allocator that does not suffer from fragmentation. Individual objects cannot be released; arena is disposed all at once.

Constructor Summary

Constructors

Constructor and Description
ArenaAllocator()

Method Summary

Modifier and Type	Method and Description
long	calloc(int size)
void	free(long address)
long	getAllocatedBytes()
protected long	getMemoryFromSystem(long size)
long	getReservedBytes()
long	malloc(int size)
void	release()
protected void	releaseMemoryToSystem(long addr, long size)
void	verify() Verify the layout of the heap.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArenaAllocator

public ArenaAllocator()

Method Detail

release

public void release()

malloc

public long malloc(int size)

Specified by:

malloc in interface Allocator

calloc

public long calloc(int size)

Specified by:

calloc in interface Allocator

free

public void free(long address)

Specified by:

free in interface Allocator

verify

public void verify()

Description copied from interface: Allocator

Verify the layout of the heap. Expensive operation, used only for debugging purposes.

Specified by:

verify in interface Allocator

getMemoryFromSystem

protected long getMemoryFromSystem(long size)

releaseMemoryToSystem

protected void releaseMemoryToSystem(long addr,
                                     long size)

getAllocatedBytes

public long getAllocatedBytes()

getReservedBytes

public long getReservedBytes()