Package org.apache.bookkeeper.proto.checksum

Class DirectMemoryCRC32Digest

java.lang.Object

org.apache.bookkeeper.proto.checksum.DirectMemoryCRC32Digest

All Implemented Interfaces:

CRC32DigestManager.CRC32Digest

class DirectMemoryCRC32Digest
extends java.lang.Object
implements CRC32DigestManager.CRC32Digest

Specialized implementation of CRC32 digest that uses reflection on CRC32 class to get access to "updateByteBuffer" method and pass a direct memory pointer.

Constructor Summary

Constructors

Constructor	Description
DirectMemoryCRC32Digest()

Method Summary

Modifier and Type	Method	Description
long	getValueAndReset()
static boolean	isSupported()
void	update(byte[] buffer, int offset, int len)
void	update(io.netty.buffer.ByteBuf buf, int index, int length)

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectMemoryCRC32Digest

DirectMemoryCRC32Digest()

Method Detail

isSupported

public static boolean isSupported()

getValueAndReset

public long getValueAndReset()

Specified by:

getValueAndReset in interface CRC32DigestManager.CRC32Digest

update

public void update(io.netty.buffer.ByteBuf buf,
                   int index,
                   int length)

Specified by:

update in interface CRC32DigestManager.CRC32Digest

update

public void update(byte[] buffer,
                   int offset,
                   int len)

Specified by:

update in interface CRC32DigestManager.CRC32Digest