Class Crc32c

java.lang.Object

org.agrona.checksum.Crc32c

All Implemented Interfaces:

Checksum

public final class Crc32c
extends Object
implements Checksum

Implementation of the Checksum interface that computes CRC-32C checksum.

CRC-32C is defined in RFC 3720: Internet Small Computer Systems Interface (iSCSI).

Field Summary

Fields

Modifier and Type	Field	Description
static final Crc32c	INSTANCE	Single instance to compute CRC-32C checksum.
private static final MethodHandle	UPDATE_DIRECT_BYTE_BUFFER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Crc32c()

Method Summary

Modifier and Type	Method	Description
private static int	bitwiseComplement(int value)
int	compute(long address, int offset, int length)	Computes a checksum based on the contents of a java.nio.DirectByteBuffer.

Methods inherited from class Object

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

Field Details

INSTANCE

public static final Crc32c INSTANCE

Single instance to compute CRC-32C checksum.

UPDATE_DIRECT_BYTE_BUFFER

private static final MethodHandle UPDATE_DIRECT_BYTE_BUFFER

Constructor Details

Crc32c

private Crc32c()

Method Details

bitwiseComplement

private static int bitwiseComplement(int value)

compute

public int compute(long address,
 int offset,
 int length)

Computes a checksum based on the contents of a java.nio.DirectByteBuffer.

Specified by:

compute in interface Checksum

Parameters:

address - of the buffer.

offset - within the buffer to begin at.

length - of the data to read.

Returns:

computed checksum value.