Package io.netty.buffer
Class AdaptivePoolingAllocator.AdaptiveByteBuf
java.lang.Object
io.netty.buffer.ByteBuf
io.netty.buffer.AbstractByteBuf
io.netty.buffer.AbstractReferenceCountedByteBuf
io.netty.buffer.AdaptivePoolingAllocator.AdaptiveByteBuf
- All Implemented Interfaces:
ByteBufConvertible
,ReferenceCounted
,Comparable<ByteBuf>
- Enclosing class:
AdaptivePoolingAllocator
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate int
(package private) AdaptivePoolingAllocator.Chunk
private final ObjectPool.Handle
<AdaptivePoolingAllocator.AdaptiveByteBuf> private boolean
private boolean
private int
private AbstractByteBuf
private ByteBuffer
Fields inherited from class io.netty.buffer.AbstractByteBuf
checkAccessible, leakDetector, readerIndex, writerIndex
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Constructor Summary
ConstructorsConstructorDescriptionAdaptiveByteBuf
(ObjectPool.Handle<AdaptivePoolingAllocator.AdaptiveByteBuf> recyclerHandle) -
Method Summary
Modifier and TypeMethodDescriptionprotected byte
_getByte
(int index) protected int
_getInt
(int index) protected int
_getIntLE
(int index) protected long
_getLong
(int index) protected long
_getLongLE
(int index) protected short
_getShort
(int index) protected short
_getShortLE
(int index) protected int
_getUnsignedMedium
(int index) protected int
_getUnsignedMediumLE
(int index) protected void
_setByte
(int index, int value) protected void
_setInt
(int index, int value) protected void
_setIntLE
(int index, int value) protected void
_setLong
(int index, long value) protected void
_setLongLE
(int index, long value) protected void
_setMedium
(int index, int value) protected void
_setMediumLE
(int index, int value) protected void
_setShort
(int index, int value) protected void
_setShortLE
(int index, int value) alloc()
Returns theByteBufAllocator
which created this buffer.byte[]
array()
Returns the backing byte array of this buffer.int
Returns the offset of the first byte within the backing byte array of this buffer.int
capacity()
Returns the number of bytes (octets) this buffer can contain.capacity
(int newCapacity) Adjusts the capacity of this buffer.copy
(int index, int length) Returns a copy of this buffer's sub-region.protected void
Called onceAbstractReferenceCountedByteBuf.refCnt()
is equals 0.int
forEachByte
(int index, int length, ByteProcessor processor) Iterates over the specified area of this buffer with the specifiedprocessor
in ascending order.int
forEachByteDesc
(int index, int length, ByteProcessor processor) Iterates over the specified area of this buffer with the specifiedprocessor
in descending order.private int
forEachResult
(int ret) getBytes
(int index, byte[] dst, int dstIndex, int length) Transfers this buffer's data to the specified destination starting at the specified absoluteindex
.Transfers this buffer's data to the specified destination starting at the specified absoluteindex
.getBytes
(int index, OutputStream out, int length) Transfers this buffer's data to the specified stream starting at the specified absoluteindex
.getBytes
(int index, ByteBuffer dst) Transfers this buffer's data to the specified destination starting at the specified absoluteindex
until the destination's position reaches its limit.int
getBytes
(int index, FileChannel out, long position, int length) Transfers this buffer's data starting at the specified absoluteindex
to the specified channel starting at the given file position.int
getBytes
(int index, GatheringByteChannel out, int length) Transfers this buffer's data to the specified channel starting at the specified absoluteindex
.boolean
hasArray()
Returnstrue
if and only if this buffer has a backing byte array.boolean
Returnstrue
if and only if this buffer has a reference to the low-level memory address that points to the backing data.private int
idx
(int index) (package private) void
init
(AbstractByteBuf unwrapped, AdaptivePoolingAllocator.Chunk wrapped, int readerIndex, int writerIndex, int adjustment, int capacity, int maxCapacity) private ByteBuffer
internalNioBuffer
(int index, int length) Internal use only: Exposes the internal NIO buffer.boolean
Returnstrue
if thisByteBuf
implementation is backed by a single memory region.boolean
isDirect()
Returnstrue
if and only if this buffer is backed by an NIO direct buffer.long
Returns the low-level memory address that point to the first byte of ths backing data.nioBuffer
(int index, int length) Exposes this buffer's sub-region as an NIOByteBuffer
.int
Returns the maximum number of NIOByteBuffer
s that consist this buffer.nioBuffers
(int index, int length) Exposes this buffer's bytes as an NIOByteBuffer
's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer.order()
Returns the endianness of this buffer.private AbstractByteBuf
setBytes
(int index, byte[] src, int srcIndex, int length) Transfers the specified source array's data to this buffer starting at the specified absoluteindex
.Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
.int
setBytes
(int index, InputStream in, int length) Transfers the content of the specified source stream to this buffer starting at the specified absoluteindex
.setBytes
(int index, ByteBuffer src) Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
until the source buffer's position reaches its limit.int
setBytes
(int index, FileChannel in, long position, int length) Transfers the content of the specified source channel starting at the given file position to this buffer starting at the specified absoluteindex
.int
setBytes
(int index, ScatteringByteChannel in, int length) Transfers the content of the specified source channel to this buffer starting at the specified absoluteindex
.int
setCharSequence
(int index, CharSequence sequence, Charset charset) Writes the specifiedCharSequence
at the givenindex
.unwrap()
Return the underlying buffer instance if this buffer is a wrapper of another buffer.Methods inherited from class io.netty.buffer.AbstractReferenceCountedByteBuf
isAccessible, refCnt, release, release, resetRefCnt, retain, retain, setRefCnt, touch, touch
Methods inherited from class io.netty.buffer.AbstractByteBuf
adjustMarkers, asReadOnly, bytesBefore, bytesBefore, bytesBefore, checkDstIndex, checkDstIndex, checkIndex, checkIndex, checkIndex0, checkNewCapacity, checkReadableBytes, checkSrcIndex, clear, compareTo, copy, discardMarks, discardReadBytes, discardSomeReadBytes, duplicate, ensureAccessible, ensureWritable, ensureWritable, ensureWritable0, equals, forEachByte, forEachByteAsc0, forEachByteDesc, forEachByteDesc0, getBoolean, getByte, getBytes, getBytes, getBytes, getChar, getCharSequence, getDouble, getFloat, getInt, getIntLE, getLong, getLongLE, getMedium, getMediumLE, getShort, getShortLE, getUnsignedByte, getUnsignedInt, getUnsignedIntLE, getUnsignedMedium, getUnsignedMediumLE, getUnsignedShort, getUnsignedShortLE, hashCode, indexOf, isReadable, isReadable, isReadOnly, isWritable, isWritable, markReaderIndex, markWriterIndex, maxCapacity, maxCapacity, maxWritableBytes, newSwappedByteBuf, nioBuffer, nioBuffers, order, readableBytes, readBoolean, readByte, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readChar, readCharSequence, readDouble, readerIndex, readerIndex, readFloat, readInt, readIntLE, readLong, readLongLE, readMedium, readMediumLE, readRetainedSlice, readShort, readShortLE, readSlice, readUnsignedByte, readUnsignedInt, readUnsignedIntLE, readUnsignedMedium, readUnsignedMediumLE, readUnsignedShort, readUnsignedShortLE, resetReaderIndex, resetWriterIndex, retainedDuplicate, retainedSlice, retainedSlice, setBoolean, setByte, setBytes, setBytes, setBytes, setChar, setDouble, setFloat, setIndex, setIndex0, setInt, setIntLE, setLong, setLongLE, setMedium, setMediumLE, setShort, setShortLE, setZero, skipBytes, slice, slice, toString, toString, toString, trimIndicesToCapacity, writableBytes, writeBoolean, writeByte, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeChar, writeCharSequence, writeDouble, writeFloat, writeInt, writeIntLE, writeLong, writeLongLE, writeMedium, writeMediumLE, writerIndex, writerIndex, writeShort, writeShortLE, writeZero
Methods inherited from class io.netty.buffer.ByteBuf
asByteBuf, getDoubleLE, getFloatLE, maxFastWritableBytes, readDoubleLE, readFloatLE, setDoubleLE, setFloatLE, writeDoubleLE, writeFloatLE
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Field Details
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handle
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adjustment
private int adjustment -
rootParent
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chunk
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length
private int length -
tmpNioBuf
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hasArray
private boolean hasArray -
hasMemoryAddress
private boolean hasMemoryAddress
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Constructor Details
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AdaptiveByteBuf
AdaptiveByteBuf(ObjectPool.Handle<AdaptivePoolingAllocator.AdaptiveByteBuf> recyclerHandle)
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Method Details
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init
void init(AbstractByteBuf unwrapped, AdaptivePoolingAllocator.Chunk wrapped, int readerIndex, int writerIndex, int adjustment, int capacity, int maxCapacity) -
rootParent
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capacity
public int capacity()Description copied from class:ByteBuf
Returns the number of bytes (octets) this buffer can contain. -
capacity
Description copied from class:ByteBuf
Adjusts the capacity of this buffer. If thenewCapacity
is less than the current capacity, the content of this buffer is truncated. If thenewCapacity
is greater than the current capacity, the buffer is appended with unspecified data whose length is(newCapacity - currentCapacity)
. -
alloc
Description copied from class:ByteBuf
Returns theByteBufAllocator
which created this buffer. -
order
Description copied from class:ByteBuf
Returns the endianness of this buffer. -
unwrap
Description copied from class:ByteBuf
Return the underlying buffer instance if this buffer is a wrapper of another buffer. -
isDirect
public boolean isDirect()Description copied from class:ByteBuf
Returnstrue
if and only if this buffer is backed by an NIO direct buffer. -
arrayOffset
public int arrayOffset()Description copied from class:ByteBuf
Returns the offset of the first byte within the backing byte array of this buffer.- Specified by:
arrayOffset
in classByteBuf
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hasMemoryAddress
public boolean hasMemoryAddress()Description copied from class:ByteBuf
Returnstrue
if and only if this buffer has a reference to the low-level memory address that points to the backing data.- Specified by:
hasMemoryAddress
in classByteBuf
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memoryAddress
public long memoryAddress()Description copied from class:ByteBuf
Returns the low-level memory address that point to the first byte of ths backing data.- Specified by:
memoryAddress
in classByteBuf
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nioBuffer
Description copied from class:ByteBuf
Exposes this buffer's sub-region as an NIOByteBuffer
. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modifyreaderIndex
orwriterIndex
of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity. -
internalNioBuffer
Description copied from class:ByteBuf
Internal use only: Exposes the internal NIO buffer.- Specified by:
internalNioBuffer
in classByteBuf
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internalNioBuffer
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nioBuffers
Description copied from class:ByteBuf
Exposes this buffer's bytes as an NIOByteBuffer
's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modifyreaderIndex
orwriterIndex
of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.- Specified by:
nioBuffers
in classByteBuf
- See Also:
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hasArray
public boolean hasArray()Description copied from class:ByteBuf
Returnstrue
if and only if this buffer has a backing byte array. If this method returns true, you can safely callByteBuf.array()
andByteBuf.arrayOffset()
. -
array
public byte[] array()Description copied from class:ByteBuf
Returns the backing byte array of this buffer. -
copy
Description copied from class:ByteBuf
Returns a copy of this buffer's sub-region. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
nioBufferCount
public int nioBufferCount()Description copied from class:ByteBuf
Returns the maximum number of NIOByteBuffer
s that consist this buffer. Note thatByteBuf.nioBuffers()
orByteBuf.nioBuffers(int, int)
might return a less number ofByteBuffer
s.- Specified by:
nioBufferCount
in classByteBuf
- Returns:
-1
if this buffer has no underlyingByteBuffer
. the number of the underlyingByteBuffer
s if this buffer has at least one underlyingByteBuffer
. Note that this method does not return0
to avoid confusion.- See Also:
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_getByte
protected byte _getByte(int index) - Specified by:
_getByte
in classAbstractByteBuf
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_getShort
protected short _getShort(int index) - Specified by:
_getShort
in classAbstractByteBuf
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_getShortLE
protected short _getShortLE(int index) - Specified by:
_getShortLE
in classAbstractByteBuf
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_getUnsignedMedium
protected int _getUnsignedMedium(int index) - Specified by:
_getUnsignedMedium
in classAbstractByteBuf
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_getUnsignedMediumLE
protected int _getUnsignedMediumLE(int index) - Specified by:
_getUnsignedMediumLE
in classAbstractByteBuf
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_getInt
protected int _getInt(int index) - Specified by:
_getInt
in classAbstractByteBuf
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_getIntLE
protected int _getIntLE(int index) - Specified by:
_getIntLE
in classAbstractByteBuf
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_getLong
protected long _getLong(int index) - Specified by:
_getLong
in classAbstractByteBuf
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_getLongLE
protected long _getLongLE(int index) - Specified by:
_getLongLE
in classAbstractByteBuf
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getBytes
Description copied from class:ByteBuf
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of both the source (i.e.this
) and the destination. -
getBytes
Description copied from class:ByteBuf
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
getBytes
Description copied from class:ByteBuf
Transfers this buffer's data to the specified destination starting at the specified absoluteindex
until the destination's position reaches its limit. This method does not modifyreaderIndex
orwriterIndex
of this buffer while the destination'sposition
will be increased. -
_setByte
protected void _setByte(int index, int value) - Specified by:
_setByte
in classAbstractByteBuf
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_setShort
protected void _setShort(int index, int value) - Specified by:
_setShort
in classAbstractByteBuf
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_setShortLE
protected void _setShortLE(int index, int value) - Specified by:
_setShortLE
in classAbstractByteBuf
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_setMedium
protected void _setMedium(int index, int value) - Specified by:
_setMedium
in classAbstractByteBuf
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_setMediumLE
protected void _setMediumLE(int index, int value) - Specified by:
_setMediumLE
in classAbstractByteBuf
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_setInt
protected void _setInt(int index, int value) - Specified by:
_setInt
in classAbstractByteBuf
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_setIntLE
protected void _setIntLE(int index, int value) - Specified by:
_setIntLE
in classAbstractByteBuf
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_setLong
protected void _setLong(int index, long value) - Specified by:
_setLong
in classAbstractByteBuf
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_setLongLE
protected void _setLongLE(int index, long value) - Specified by:
_setLongLE
in classAbstractByteBuf
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setBytes
Description copied from class:ByteBuf
Transfers the specified source array's data to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
setBytes
Description copied from class:ByteBuf
Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of both the source (i.e.this
) and the destination. -
setBytes
Description copied from class:ByteBuf
Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex
until the source buffer's position reaches its limit. This method does not modifyreaderIndex
orwriterIndex
of this buffer. -
getBytes
Description copied from class:ByteBuf
Transfers this buffer's data to the specified stream starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Specified by:
getBytes
in classByteBuf
- Parameters:
length
- the number of bytes to transfer- Throws:
IOException
- if the specified stream threw an exception during I/O
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getBytes
Description copied from class:ByteBuf
Transfers this buffer's data to the specified channel starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Specified by:
getBytes
in classByteBuf
- Parameters:
length
- the maximum number of bytes to transfer- Returns:
- the actual number of bytes written out to the specified channel
- Throws:
IOException
- if the specified channel threw an exception during I/O
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getBytes
Description copied from class:ByteBuf
Transfers this buffer's data starting at the specified absoluteindex
to the specified channel starting at the given file position. This method does not modifyreaderIndex
orwriterIndex
of this buffer. This method does not modify the channel's position.- Specified by:
getBytes
in classByteBuf
- Parameters:
position
- the file position at which the transfer is to beginlength
- the maximum number of bytes to transfer- Returns:
- the actual number of bytes written out to the specified channel
- Throws:
IOException
- if the specified channel threw an exception during I/O
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setBytes
Description copied from class:ByteBuf
Transfers the content of the specified source stream to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Specified by:
setBytes
in classByteBuf
- Parameters:
length
- the number of bytes to transfer- Returns:
- the actual number of bytes read in from the specified channel.
-1
if the specifiedInputStream
reached EOF. - Throws:
IOException
- if the specified stream threw an exception during I/O
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setBytes
Description copied from class:ByteBuf
Transfers the content of the specified source channel to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer.- Specified by:
setBytes
in classByteBuf
- Parameters:
length
- the maximum number of bytes to transfer- Returns:
- the actual number of bytes read in from the specified channel.
-1
if the specified channel is closed or it reached EOF. - Throws:
IOException
- if the specified channel threw an exception during I/O
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setBytes
Description copied from class:ByteBuf
Transfers the content of the specified source channel starting at the given file position to this buffer starting at the specified absoluteindex
. This method does not modifyreaderIndex
orwriterIndex
of this buffer. This method does not modify the channel's position.- Specified by:
setBytes
in classByteBuf
- Parameters:
position
- the file position at which the transfer is to beginlength
- the maximum number of bytes to transfer- Returns:
- the actual number of bytes read in from the specified channel.
-1
if the specified channel is closed or it reached EOF. - Throws:
IOException
- if the specified channel threw an exception during I/O
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setCharSequence
Description copied from class:ByteBuf
Writes the specifiedCharSequence
at the givenindex
. ThewriterIndex
is not modified by this method.- Overrides:
setCharSequence
in classAbstractByteBuf
- Parameters:
index
- on which the sequence should be writtensequence
- to writecharset
- that should be used.- Returns:
- the written number of bytes.
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forEachByte
Description copied from class:ByteBuf
Iterates over the specified area of this buffer with the specifiedprocessor
in ascending order. (i.e.index
,(index + 1)
, ..(index + length - 1)
)- Overrides:
forEachByte
in classAbstractByteBuf
- Returns:
-1
if the processor iterated to or beyond the end of the specified area. The last-visited index If theByteProcessor.process(byte)
returnedfalse
.
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forEachByteDesc
Description copied from class:ByteBuf
Iterates over the specified area of this buffer with the specifiedprocessor
in descending order. (i.e.(index + length - 1)
,(index + length - 2)
, ...index
)- Overrides:
forEachByteDesc
in classAbstractByteBuf
- Returns:
-1
if the processor iterated to or beyond the beginning of the specified area. The last-visited index If theByteProcessor.process(byte)
returnedfalse
.
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forEachResult
private int forEachResult(int ret) -
isContiguous
public boolean isContiguous()Description copied from class:ByteBuf
Returnstrue
if thisByteBuf
implementation is backed by a single memory region. Composite buffer implementations must return false even if they currently hold ≤ 1 components. For buffers that returntrue
, it's guaranteed that a successful call toByteBuf.discardReadBytes()
will increase the value ofByteBuf.maxFastWritableBytes()
by the currentreaderIndex
.This method will return
false
by default, and afalse
return value does not necessarily mean that the implementation is composite or that it is not backed by a single memory region.- Overrides:
isContiguous
in classByteBuf
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idx
private int idx(int index) -
deallocate
protected void deallocate()Description copied from class:AbstractReferenceCountedByteBuf
Called onceAbstractReferenceCountedByteBuf.refCnt()
is equals 0.- Specified by:
deallocate
in classAbstractReferenceCountedByteBuf
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