io.netty.buffer

Class PooledByteBufAllocator

java.lang.Object

io.netty.buffer.AbstractByteBufAllocator

io.netty.buffer.PooledByteBufAllocator

All Implemented Interfaces:

ByteBufAllocator

public class PooledByteBufAllocator
extends AbstractByteBufAllocator

Field Summary

Fields

Modifier and Type	Field and Description
static PooledByteBufAllocator	DEFAULT

Constructor Summary

Constructors

Constructor and Description
PooledByteBufAllocator()
PooledByteBufAllocator(boolean preferDirect)
PooledByteBufAllocator(boolean preferDirect, int nHeapArena, int nDirectArena, int pageSize, int maxOrder)
PooledByteBufAllocator(boolean preferDirect, int nHeapArena, int nDirectArena, int pageSize, int maxOrder, int tinyCacheSize, int smallCacheSize, int normalCacheSize)
PooledByteBufAllocator(int nHeapArena, int nDirectArena, int pageSize, int maxOrder)

Method Summary

Methods

Modifier and Type	Method and Description
static int	defaultMaxOrder() Default maximum order - System Property: io.netty.allocator.maxOrder - default 11
static int	defaultNormalCacheSize() Default normal cache size - System Property: io.netty.allocator.normalCacheSize - default 64
static int	defaultNumDirectArena() Default numer of direct arenas - System Property: io.netty.allocator.numDirectArenas - default 2 * cores
static int	defaultNumHeapArena() Default number of heap areanas - System Property: io.netty.allocator.numHeapArenas - default 2 * cores
static int	defaultPageSize() Default buffer page size - System Property: io.netty.allocator.pageSize - default 8192
static int	defaultSmallCacheSize() Default small cache size - System Property: io.netty.allocator.smallCacheSize - default 256
static int	defaultTinyCacheSize() Default tiny cache size - System Property: io.netty.allocator.tinyCacheSize - default 512
List<PoolArenaMetric>	directArenas() Return a List of all direct PoolArenaMetrics that are provided by this pool.
void	freeThreadLocalCache() Deprecated.
boolean	hasThreadLocalCache() Deprecated.
List<PoolArenaMetric>	heapArenas() Return a List of all heap PoolArenaMetrics that are provided by this pool.
boolean	isDirectBufferPooled() Returns true if direct ByteBuf's are pooled
protected ByteBuf	newDirectBuffer(int initialCapacity, int maxCapacity) Create a direct ByteBuf with the given initialCapacity and maxCapacity.
protected ByteBuf	newHeapBuffer(int initialCapacity, int maxCapacity) Create a heap ByteBuf with the given initialCapacity and maxCapacity.
int	normalCacheSize() Return the size of the normal cache.
int	numDirectArenas() Return the number of direct arenas.
int	numHeapArenas() Return the number of heap arenas.
int	numThreadLocalCaches() Return the number of thread local caches used by this PooledByteBufAllocator.
int	smallCacheSize() Return the size of the small cache.
int	tinyCacheSize() Return the size of the tiny cache.

Methods inherited from class io.netty.buffer.AbstractByteBufAllocator

buffer, buffer, buffer, calculateNewCapacity, compositeBuffer, compositeBuffer, compositeDirectBuffer, compositeDirectBuffer, compositeHeapBuffer, compositeHeapBuffer, directBuffer, directBuffer, directBuffer, heapBuffer, heapBuffer, heapBuffer, ioBuffer, ioBuffer, ioBuffer, toLeakAwareBuffer, toLeakAwareBuffer, toString

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final PooledByteBufAllocator DEFAULT

Constructor Detail

PooledByteBufAllocator

public PooledByteBufAllocator()

PooledByteBufAllocator

public PooledByteBufAllocator(boolean preferDirect)

PooledByteBufAllocator

public PooledByteBufAllocator(int nHeapArena,
                      int nDirectArena,
                      int pageSize,
                      int maxOrder)

PooledByteBufAllocator

public PooledByteBufAllocator(boolean preferDirect,
                      int nHeapArena,
                      int nDirectArena,
                      int pageSize,
                      int maxOrder)

PooledByteBufAllocator

public PooledByteBufAllocator(boolean preferDirect,
                      int nHeapArena,
                      int nDirectArena,
                      int pageSize,
                      int maxOrder,
                      int tinyCacheSize,
                      int smallCacheSize,
                      int normalCacheSize)

Method Detail

newHeapBuffer

protected ByteBuf newHeapBuffer(int initialCapacity,
                    int maxCapacity)

Description copied from class: AbstractByteBufAllocator

Create a heap ByteBuf with the given initialCapacity and maxCapacity.

Specified by:

newHeapBuffer in class AbstractByteBufAllocator

newDirectBuffer

protected ByteBuf newDirectBuffer(int initialCapacity,
                      int maxCapacity)

Description copied from class: AbstractByteBufAllocator

Create a direct ByteBuf with the given initialCapacity and maxCapacity.

Specified by:

newDirectBuffer in class AbstractByteBufAllocator

defaultNumHeapArena

public static int defaultNumHeapArena()

Default number of heap areanas - System Property: io.netty.allocator.numHeapArenas - default 2 * cores

defaultNumDirectArena

public static int defaultNumDirectArena()

Default numer of direct arenas - System Property: io.netty.allocator.numDirectArenas - default 2 * cores

defaultPageSize

public static int defaultPageSize()

Default buffer page size - System Property: io.netty.allocator.pageSize - default 8192

defaultMaxOrder

public static int defaultMaxOrder()

Default maximum order - System Property: io.netty.allocator.maxOrder - default 11

defaultTinyCacheSize

public static int defaultTinyCacheSize()

Default tiny cache size - System Property: io.netty.allocator.tinyCacheSize - default 512

defaultSmallCacheSize

public static int defaultSmallCacheSize()

Default small cache size - System Property: io.netty.allocator.smallCacheSize - default 256

defaultNormalCacheSize

public static int defaultNormalCacheSize()

Default normal cache size - System Property: io.netty.allocator.normalCacheSize - default 64

isDirectBufferPooled

public boolean isDirectBufferPooled()

Description copied from interface: ByteBufAllocator

Returns true if direct ByteBuf's are pooled

hasThreadLocalCache

@Deprecated
public boolean hasThreadLocalCache()

Deprecated.

Returns true if the calling Thread has a ThreadLocal cache for the allocated buffers.

freeThreadLocalCache

@Deprecated
public void freeThreadLocalCache()

Deprecated.

Free all cached buffers for the calling Thread.

numHeapArenas

public int numHeapArenas()

Return the number of heap arenas.

numDirectArenas

public int numDirectArenas()

Return the number of direct arenas.

heapArenas

public List<PoolArenaMetric> heapArenas()

Return a List of all heap PoolArenaMetrics that are provided by this pool.

directArenas

public List<PoolArenaMetric> directArenas()

Return a List of all direct PoolArenaMetrics that are provided by this pool.

numThreadLocalCaches

public int numThreadLocalCaches()

Return the number of thread local caches used by this PooledByteBufAllocator.

tinyCacheSize

public int tinyCacheSize()

Return the size of the tiny cache.

smallCacheSize

public int smallCacheSize()

Return the size of the small cache.

normalCacheSize

public int normalCacheSize()

Return the size of the normal cache.