xerial.larray.buffer

Class DefaultMemoryAllocator

java.lang.Object

xerial.larray.buffer.DefaultMemoryAllocator

All Implemented Interfaces:

MemoryAllocator

public class DefaultMemoryAllocator
extends java.lang.Object
implements MemoryAllocator

A default implementation of MemoryAllocator that allocates off-heap memory and releases allocated memories in a background thread.

Constructor Summary

Constructors

Constructor and Description
DefaultMemoryAllocator()

Method Summary

Modifier and Type	Method and Description
Memory	allocate(long size) Allocate a memory of the specified byte length.
long	allocatedSize() Get the total amount of allocated memory
void	register(Memory m) Register a memory
void	release(Memory m) Release a memory
void	release(MemoryReference ref) Release a memory, referenced by ref
void	releaseAll() Release all memory addresses taken by this allocator.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultMemoryAllocator

public DefaultMemoryAllocator()

Method Detail

allocatedSize

public long allocatedSize()

Get the total amount of allocated memory

Specified by:

allocatedSize in interface MemoryAllocator

allocate

public Memory allocate(long size)

Allocate a memory of the specified byte length. The allocated memory must be released via `release` as in malloc() in C/C++.

Specified by:

allocate in interface MemoryAllocator

Parameters:

size - byte length of the memory

Returns:

allocated memory information

register

public void register(Memory m)

Description copied from interface: MemoryAllocator

Register a memory

Specified by:

register in interface MemoryAllocator

releaseAll

public void releaseAll()

Release all memory addresses taken by this allocator. Be careful in using this method, since all of the memory addresses become invalid.

release

public void release(MemoryReference ref)

Description copied from interface: MemoryAllocator

Release a memory, referenced by ref

Specified by:

release in interface MemoryAllocator

release

public void release(Memory m)

Description copied from interface: MemoryAllocator

Release a memory

Specified by:

release in interface MemoryAllocator