Package io.netty.buffer

Class UnpooledByteBufAllocator

java.lang.Object

io.netty.buffer.AbstractByteBufAllocator

io.netty.buffer.UnpooledByteBufAllocator

All Implemented Interfaces:

ByteBufAllocator, ByteBufAllocatorMetricProvider

public final class UnpooledByteBufAllocator
extends AbstractByteBufAllocator
implements ByteBufAllocatorMetricProvider

Simplistic ByteBufAllocator implementation that does not pool anything.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	UnpooledByteBufAllocator.InstrumentedUnpooledDirectByteBuf
private static final class	UnpooledByteBufAllocator.InstrumentedUnpooledHeapByteBuf
private static final class	UnpooledByteBufAllocator.InstrumentedUnpooledUnsafeDirectByteBuf
private static final class	UnpooledByteBufAllocator.InstrumentedUnpooledUnsafeHeapByteBuf
private static final class	UnpooledByteBufAllocator.InstrumentedUnpooledUnsafeNoCleanerDirectByteBuf
private static final class	UnpooledByteBufAllocator.UnpooledByteBufAllocatorMetric

Field Summary

Fields

Modifier and Type	Field	Description
static final UnpooledByteBufAllocator	DEFAULT	Default instance which uses leak-detection for direct buffers.
private final boolean	disableLeakDetector
private final UnpooledByteBufAllocator.UnpooledByteBufAllocatorMetric	metric
private final boolean	noCleaner

Fields inherited from class io.netty.buffer.AbstractByteBufAllocator

CALCULATE_THRESHOLD, DEFAULT_INITIAL_CAPACITY, DEFAULT_MAX_CAPACITY, DEFAULT_MAX_COMPONENTS

Constructor Summary

Constructors

Constructor	Description
UnpooledByteBufAllocator(boolean preferDirect)	Create a new instance which uses leak-detection for direct buffers.
UnpooledByteBufAllocator(boolean preferDirect, boolean disableLeakDetector)	Create a new instance
UnpooledByteBufAllocator(boolean preferDirect, boolean disableLeakDetector, boolean tryNoCleaner)	Create a new instance

Method Summary

Modifier and Type	Method	Description
CompositeByteBuf	compositeDirectBuffer(int maxNumComponents)	Allocate a direct CompositeByteBuf with the given maximum number of components that can be stored in it.
CompositeByteBuf	compositeHeapBuffer(int maxNumComponents)	Allocate a heap CompositeByteBuf with the given maximum number of components that can be stored in it.
(package private) void	decrementDirect(int amount)
(package private) void	decrementHeap(int amount)
(package private) void	incrementDirect(int amount)
(package private) void	incrementHeap(int amount)
boolean	isDirectBufferPooled()	Returns true if direct ByteBuf's are pooled
ByteBufAllocatorMetric	metric()	Returns a ByteBufAllocatorMetric for a ByteBufAllocator.
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.

Methods inherited from class io.netty.buffer.AbstractByteBufAllocator

buffer, buffer, buffer, calculateNewCapacity, compositeBuffer, compositeBuffer, compositeDirectBuffer, 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 Details

metric

private final UnpooledByteBufAllocator.UnpooledByteBufAllocatorMetric metric

disableLeakDetector

private final boolean disableLeakDetector

noCleaner

private final boolean noCleaner

DEFAULT

public static final UnpooledByteBufAllocator DEFAULT

Default instance which uses leak-detection for direct buffers.

Constructor Details

UnpooledByteBufAllocator

public UnpooledByteBufAllocator(boolean preferDirect)

Create a new instance which uses leak-detection for direct buffers.

Parameters:

preferDirect - true if AbstractByteBufAllocator.buffer(int) should try to allocate a direct buffer rather than a heap buffer

UnpooledByteBufAllocator

public UnpooledByteBufAllocator(boolean preferDirect,
 boolean disableLeakDetector)

Create a new instance

Parameters:

preferDirect - true if AbstractByteBufAllocator.buffer(int) should try to allocate a direct buffer rather than a heap buffer

disableLeakDetector - true if the leak-detection should be disabled completely for this allocator. This can be useful if the user just want to depend on the GC to handle direct buffers when not explicit released.

UnpooledByteBufAllocator

public UnpooledByteBufAllocator(boolean preferDirect,
 boolean disableLeakDetector,
 boolean tryNoCleaner)

Create a new instance

Parameters:

preferDirect - true if AbstractByteBufAllocator.buffer(int) should try to allocate a direct buffer rather than a heap buffer

disableLeakDetector - true if the leak-detection should be disabled completely for this allocator. This can be useful if the user just want to depend on the GC to handle direct buffers when not explicit released.

tryNoCleaner - true if we should try to use PlatformDependent.allocateDirectNoCleaner(int) to allocate direct memory.

Method Details

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

compositeHeapBuffer

public CompositeByteBuf compositeHeapBuffer(int maxNumComponents)

Description copied from interface: ByteBufAllocator

Allocate a heap CompositeByteBuf with the given maximum number of components that can be stored in it.

Specified by:

compositeHeapBuffer in interface ByteBufAllocator

Overrides:

compositeHeapBuffer in class AbstractByteBufAllocator

compositeDirectBuffer

public CompositeByteBuf compositeDirectBuffer(int maxNumComponents)

Description copied from interface: ByteBufAllocator

Allocate a direct CompositeByteBuf with the given maximum number of components that can be stored in it.

Specified by:

compositeDirectBuffer in interface ByteBufAllocator

Overrides:

compositeDirectBuffer in class AbstractByteBufAllocator

isDirectBufferPooled

public boolean isDirectBufferPooled()

Description copied from interface: ByteBufAllocator

Returns true if direct ByteBuf's are pooled

Specified by:

isDirectBufferPooled in interface ByteBufAllocator

metric

public ByteBufAllocatorMetric metric()

Description copied from interface: ByteBufAllocatorMetricProvider

Returns a ByteBufAllocatorMetric for a ByteBufAllocator.

Specified by:

metric in interface ByteBufAllocatorMetricProvider

incrementDirect

void incrementDirect(int amount)

decrementDirect

void decrementDirect(int amount)

incrementHeap

void incrementHeap(int amount)

decrementHeap

void decrementHeap(int amount)