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Results 1 - 10 of 26 for CRC (0.04 sec)

  1. android/guava-tests/test/com/google/common/hash/Crc32cHashFunctionTest.java

      }
    
      private static int referenceCrc(byte[] bytes) {
        int crc = ~0;
        for (byte b : bytes) {
          crc = (crc >>> 8) ^ Crc32cHashFunction.Crc32cHasher.BYTE_TABLE[(crc ^ b) & 0xFF];
        }
        return ~crc;
      }
    
      /**
       * Verifies that the crc of an array of byte data matches the expected value.
       *
       * @param expectedCrc the expected crc value.
       * @param data the data to run the checksum on.
       */
    Registered: Fri Nov 01 12:43:10 UTC 2024
    - Last Modified: Tue Jul 23 14:22:54 UTC 2024
    - 6.5K bytes
    - Viewed (0)
  2. cmd/xl-storage-format-utils.go

    	// Seed (random)
    	crc := uint64(0xc2b40bbac11a7295)
    	// Xor each value to make order independent
    	for k, v := range m {
    		// Separate key and value with an individual xor with a random number.
    		// Add values of each, so they cannot be trivially collided.
    		crc ^= (xxh3.HashString(k) ^ 0x4ee3bbaf7ab2506b) + (xxh3.HashString(v) ^ 0x8da4c8da66194257)
    	}
    	return crc
    }
    
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Thu Aug 08 15:29:58 UTC 2024
    - 5.5K bytes
    - Viewed (0)
  3. guava-tests/test/com/google/common/hash/Crc32cHashFunctionTest.java

      }
    
      private static int referenceCrc(byte[] bytes) {
        int crc = ~0;
        for (byte b : bytes) {
          crc = (crc >>> 8) ^ Crc32cHashFunction.Crc32cHasher.BYTE_TABLE[(crc ^ b) & 0xFF];
        }
        return ~crc;
      }
    
      /**
       * Verifies that the crc of an array of byte data matches the expected value.
       *
       * @param expectedCrc the expected crc value.
       * @param data the data to run the checksum on.
       */
    Registered: Fri Nov 01 12:43:10 UTC 2024
    - Last Modified: Tue Jul 23 14:22:54 UTC 2024
    - 6.5K bytes
    - Viewed (0)
  4. guava/src/com/google/common/hash/Crc32cHashFunction.java

        /*
         * The striding algorithm works roughly as follows: it is universally the case that
         * CRC(x ^ y) == CRC(x) ^ CRC(y).  The approach we take is to break the message as follows,
         * with each letter representing a 4-byte word: ABCDABCDABCDABCD... and to calculate
         * CRC(A000A000A000...), CRC(0B000B000B...), CRC(00C000C000C...), CRC(000D000D000D...)
         * and then to XOR them together.  The STRIDE_TABLE enables us to hash an int followed by 12
    Registered: Fri Nov 01 12:43:10 UTC 2024
    - Last Modified: Tue Apr 20 18:43:59 UTC 2021
    - 21.3K bytes
    - Viewed (0)
  5. cmd/xl-storage-format-v1.go

    	// Zero unimportant fields
    	c.Erasure.Index = 0
    	c.Minio.Release = ""
    	crc := hashDeterministicString(c.Meta)
    	c.Meta = nil
    
    	if bts, err := c.MarshalMsg(metaDataPoolGet()); err == nil {
    		crc ^= xxhash.Sum64(bts)
    		metaDataPoolPut(bts)
    	}
    
    	// Combine upper and lower part
    	var tmp [4]byte
    	binary.LittleEndian.PutUint32(tmp[:], uint32(crc^(crc>>32)))
    	return tmp
    }
    
    // XL metadata constants.
    const (
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Tue Oct 22 15:30:50 UTC 2024
    - 8.4K bytes
    - Viewed (0)
  6. internal/grid/msg.go

    	}
    	if m.Flags&FlagCRCxxh3 != 0 {
    		const hashLen = 4
    		if len(h) < hashLen {
    			return nil, nil, fmt.Errorf("want crc len 4, got %v", len(h))
    		}
    		got := uint32(xxh3.Hash(b[:len(b)-hashLen]))
    		want := binary.LittleEndian.Uint32(h[len(h)-hashLen:])
    		if got != want {
    			return nil, nil, fmt.Errorf("crc mismatch: 0x%08x (given) != 0x%08x (bytes)", want, got)
    		}
    		h = h[:len(h)-hashLen]
    	}
    	// Extract subroute if any.
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Thu Jul 25 21:07:21 UTC 2024
    - 7.6K bytes
    - Viewed (0)
  7. internal/s3select/message.go

    	0, 0, 0, 41, // headers byte-length.
    	139, 161, 157, 242, // prelude crc.
    	13, ':', 'm', 'e', 's', 's', 'a', 'g', 'e', '-', 't', 'y', 'p', 'e', 7, 0, 5, 'e', 'v', 'e', 'n', 't', // headers.
    	11, ':', 'e', 'v', 'e', 'n', 't', '-', 't', 'y', 'p', 'e', 7, 0, 4, 'C', 'o', 'n', 't', // headers.
    	156, 134, 74, 13, // message crc.
    }
    
    // Refer genProgressHeader().
    var progressHeader = []byte{
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Tue Aug 30 15:26:43 UTC 2022
    - 15.2K bytes
    - Viewed (0)
  8. cmd/xl-storage-format-v2.go

    			}
    			if minor >= 2 {
    				if crc, nbuf, err := msgp.ReadUint32Bytes(buf); err == nil {
    					// Read metadata CRC (added in v2)
    					buf = nbuf
    					if got := uint32(xxhash.Sum64(v)); got != crc {
    						return fmt.Errorf("xlMetaV2.Load version(%d), CRC mismatch, want 0x%x, got 0x%x", minor, crc, got)
    					}
    				} else {
    					return fmt.Errorf("xlMetaV2.Load version(%d), loading CRC: %w", minor, err)
    				}
    			}
    
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Tue Oct 22 15:30:50 UTC 2024
    - 64K bytes
    - Viewed (1)
  9. docs/bucket/versioning/DESIGN.md

    | xlVersionMajor | uint16         | Major xl-meta version.
    | xlVersionMinor | uint16         | Minor xl-meta version.
    | xlMetaV2       | msgp bin array | Bin array with serialized metadata
    | crc            | msgp uint      | Lower 32 bits of 64 bit xxhash of previous array contents (v1.2+ only)
    | inline data    | binary         | Inline data if any, see Inline Data section for encoding.  
    | [EOF] | |
    
    ## v1.0-v1.2 Versions
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Sun Jul 17 15:43:14 UTC 2022
    - 5.8K bytes
    - Viewed (0)
  10. docs/debugging/inspect/export.go

    				// Read metadata CRC (added in v2, ignore if not found)
    				b = nbuf
    			}
    
    			_, e = msgp.CopyToJSON(buf, bytes.NewReader(v))
    			if e != nil {
    				return nil, e
    			}
    			data = b
    		case 3:
    			v, b, e := msgp.ReadBytesZC(b)
    			if e != nil {
    				return nil, e
    			}
    			if _, nbuf, e := msgp.ReadUint32Bytes(b); e == nil {
    				// Read metadata CRC (added in v2, ignore if not found)
    				b = nbuf
    Registered: Sun Nov 03 19:28:11 UTC 2024
    - Last Modified: Tue Nov 08 15:58:02 UTC 2022
    - 9.1K bytes
    - Viewed (0)
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