Class ByteBufferPool

java.lang.Object

com.xpdustry.claj.common.util.ByteBufferPool

public final class ByteBufferPool
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
final int	bucketCap
protected final ConcurrentHashMap<Integer, Pool<ByteBuffer>>	directs
final int	factor
protected final ConcurrentHashMap<Integer, Pool<ByteBuffer>>	heaps
protected final Function<Integer, Pool<ByteBuffer>>	newBucket

Constructor Summary

Constructors

Constructor	Description
ByteBufferPool()	Creates a buffer pool with a default factor and bucketCap of 1024.
ByteBufferPool(int factor, int bucketCap)

Method Summary

Modifier and Type	Method	Description
int	bucketOf(int size)
void	clear()	Clear all buffer buckets.
void	clear(boolean direct)
void	fill(int bucket)	Fill a bucket completely.
void	fill(int bucket, int size)
void	fill(int bucket, int size, boolean direct)	Fill a bucket with size new buffers.
static boolean	free(ByteBuffer buff)
static ByteBufferPool	get()
protected ConcurrentHashMap<Integer, Pool<ByteBuffer>>	getBuckets(boolean direct)
static ByteBuffer	getDirect(int size)
static ByteBuffer	getHeap(int size)
boolean	has(int bucket)
boolean	has(int bucket, boolean direct)
protected ByteBuffer	newBuffer(boolean direct, int capacity)
ByteBuffer	obtain(int size)
ByteBuffer	obtain(int size, boolean direct)	Get a buffer of the given size from free pool, or a new one.
boolean	release(ByteBuffer buf)	Double release protection not handled!
int	size(int bucket)
int	size(int bucket, boolean direct)

Methods inherited from class Object

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

Field Details

heaps

protected final ConcurrentHashMap<Integer, Pool<ByteBuffer>> heaps

directs

protected final ConcurrentHashMap<Integer, Pool<ByteBuffer>> directs

newBucket

protected final Function<Integer, Pool<ByteBuffer>> newBucket

factor

public final int factor

bucketCap

public final int bucketCap

Constructor Details

ByteBufferPool

public ByteBufferPool()

Creates a buffer pool with a default factor and bucketCap of 1024.

ByteBufferPool

public ByteBufferPool(int factor,
 int bucketCap)

Method Details

get

public static ByteBufferPool get()

getHeap

public static ByteBuffer getHeap(int size)

getDirect

public static ByteBuffer getDirect(int size)

free

public static boolean free(ByteBuffer buff)

getBuckets

protected ConcurrentHashMap<Integer, Pool<ByteBuffer>> getBuckets(boolean direct)

newBuffer

protected ByteBuffer newBuffer(boolean direct,
 int capacity)

bucketOf

public int bucketOf(int size)

Returns:

the bucket fitting the given size according to the factor.

obtain

public ByteBuffer obtain(int size)

obtain

public ByteBuffer obtain(int size,
 boolean direct)

Get a buffer of the given size from free pool, or a new one.
Capacity is rounded to the upper factor, but limited to the given size.

release

public boolean release(ByteBuffer buf)

Double release protection not handled!

Returns:

whether the buffer was added to the free buffer pool. A buffer might not be added for several reason: a null value, zero capacity, not at the defined factor, or simply because the associated bucket is full.

fill

public void fill(int bucket)

Fill a bucket completely.

fill

public void fill(int bucket,
 int size)

fill

public void fill(int bucket,
 int size,
 boolean direct)

Fill a bucket with size new buffers.

clear

public void clear()

Clear all buffer buckets.

clear

public void clear(boolean direct)

size

public int size(int bucket)

size

public int size(int bucket,
 boolean direct)

Returns:

the number of currently freed buffers in a bucket, or -1 if no pool has been created for this bucket.

has

public boolean has(int bucket)

has

public boolean has(int bucket,
 boolean direct)

Returns:

whether a pool has been created for the specified bucket.