Package com.scurrilous.circe.checksum

Class Crc32cIntChecksum

java.lang.Object
com.scurrilous.circe.checksum.Crc32cIntChecksum
public class Crc32cIntChecksum extends Object

  • Constructor Summary

    Constructors
    Constructor
    Description
    Crc32cIntChecksum()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    acceptsMemoryAddressBuffer()
     
    static int
    computeChecksum(io.netty.buffer.ByteBuf payload)
    Computes crc32c checksum: if it is able to load crc32c native library then it computes using that native library which is faster as it computes using hardware machine instruction else it computes using crc32c algo.
    static int
    computeChecksum(io.netty.buffer.ByteBuf payload, int offset, int len)
    Computes crc32c checksum: if it is able to load crc32c native library then it computes using that native library which is faster as it computes using hardware machine instruction else it computes using crc32c algo.
    static int
    resumeChecksum(int previousChecksum, byte[] payload, int offset, int len)
    Computes incremental checksum with input previousChecksum and input payload
    static int
    resumeChecksum(int previousChecksum, io.netty.buffer.ByteBuf payload)
    Computes incremental checksum with input previousChecksum and input payload
    static int
    resumeChecksum(int previousChecksum, io.netty.buffer.ByteBuf payload, int offset, int len)
    Computes incremental checksum with input previousChecksum and input payload

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Crc32cIntChecksum

      public Crc32cIntChecksum()

  • Method Details

    • computeChecksum

      public static int computeChecksum(io.netty.buffer.ByteBuf payload)
      Computes crc32c checksum: if it is able to load crc32c native library then it computes using that native library which is faster as it computes using hardware machine instruction else it computes using crc32c algo.
      Parameters:
      payload -
      Returns:

    • computeChecksum

      public static int computeChecksum(io.netty.buffer.ByteBuf payload, int offset, int len)
      Computes crc32c checksum: if it is able to load crc32c native library then it computes using that native library which is faster as it computes using hardware machine instruction else it computes using crc32c algo.
      Parameters:
      payload -
      Returns:

    • resumeChecksum

      public static int resumeChecksum(int previousChecksum, io.netty.buffer.ByteBuf payload)
      Computes incremental checksum with input previousChecksum and input payload
      Parameters:
      previousChecksum - : previously computed checksum
      payload -
      Returns:

    • resumeChecksum

      public static int resumeChecksum(int previousChecksum, io.netty.buffer.ByteBuf payload, int offset, int len)
      Computes incremental checksum with input previousChecksum and input payload
      Parameters:
      previousChecksum - the previously computed checksum
      payload - the data for which the checksum is to be computed
      offset - the starting position in the payload
      len - the number of bytes to include in the checksum computation
      Returns:
      the updated checksum

    • resumeChecksum

      public static int resumeChecksum(int previousChecksum, byte[] payload, int offset, int len)
      Computes incremental checksum with input previousChecksum and input payload
      Parameters:
      previousChecksum - the previously computed checksum
      payload - the data for which the checksum is to be computed
      offset - the starting position in the payload
      len - the number of bytes to include in the checksum computation
      Returns:
      the updated checksum

    • acceptsMemoryAddressBuffer

      public static boolean acceptsMemoryAddressBuffer()