If one or more drives are offline at the start of a PutObject or NewMultipartUpload operation the object will have additional data protection bits added automatically to provide additional safety for these objects.

### High availability

// HTTP requests made by all clients
type HTTPStats struct {
	s3RequestsInQueue       int32 // ref: https://golang.org/pkg/sync/atomic/#pkg-note-BUG
	_                       int32 // For 64 bits alignment
	s3RequestsIncoming      uint64
	rejectedRequestsAuth    uint64
	rejectedRequestsTime    uint64
	rejectedRequestsHeader  uint64
	rejectedRequestsInvalid uint64
	currentS3Requests       HTTPAPIStats

}

// asciiSet is a 32-byte value, where each bit represents the presence of a
// given ASCII character in the set. The 128-bits of the lower 16 bytes,
// starting with the least-significant bit of the lowest word to the
// most-significant bit of the highest word, map to the full range of all
// 128 ASCII characters. The 128-bits of the upper 16 bytes will be zeroed,
// ensuring that any non-ASCII character will be reported as not in the set.

        request.writeBytesWireFormat(buffer, 0);

        // Then
        int readFilter = SMBUtil.readInt4(buffer, 24);
        assertEquals(allFilters, readFilter);
        assertEquals(0xFFF, readFilter); // All 12 bits set
    }

    @Test
    @DisplayName("Should handle different buffer sizes from configuration")
    void testDifferentBufferSizes() {
        // Given
        Configuration config = mock(Configuration.class);

  // From RFC 3720, Section 12.1, the polynomial generator is 0x11EDC6F41.
  // We calculate the constant below by:
  //   1. Omitting the most significant bit (because it's always 1). => 0x1EDC6F41
  //   2. Flipping the bits of the constant so we can process a byte at a time. => 0x82F63B78
  private static final int CRC32C_GENERATOR = 0x1EDC6F41; // 0x11EDC6F41
  private static final int CRC32C_GENERATOR_FLIPPED = Integer.reverse(CRC32C_GENERATOR);

import java.net.UnknownHostException;

import jcifs.smb1.util.LogStream;
import jcifs.smb1.util.transport.TransportException;

/**
 * This InputStream can read bytes from a file on an SMB file server. Offsets are 64 bits.
 */

public class SmbFileInputStream extends InputStream {

    private long fp;
    private final int readSize;
    private int openFlags;
    private final int access;
    private byte[] tmp = new byte[1];

  @Override
  public HashCode hashBytes(byte[] input, int off, int len) {
    checkPositionIndexes(off, off + len, input.length);
    return HashCode.fromLong(fingerprint(input, off, len));
  }

  @Override
  public int bits() {
    return 64;
  }

  @Override
  public String toString() {
    return "Hashing.fingerprint2011()";
  }

  // End of public functions.

  @VisibleForTesting

In your IDEA, `File` - `Open`, select `.teamcity/pom.xml`, `import as project`, and you'll have a Maven project.

## Project structure

Mostly a standard Maven project structure. The entry point `settings.kts` defines the TeamCity project.

There are 3 subprojects in the TeamCity project hierarchy: `Check` for Gradle builds, `Promotion` for releasing Gradle versions, `Util` for miscellaneous utilities.

## Develop and verify

            assertEquals(48, SMBUtil.readInt2(buffer, 0)); // Structure size
            assertEquals(1, SMBUtil.readInt2(buffer, 2)); // Lock count

            // Verify lock sequence (bits 4-7 are sequence number, bits 0-27 are index)
            int lockSequence = SMBUtil.readInt4(buffer, 4);
            assertEquals(0, lockSequence); // Default values

            // Verify file ID

        // Three-byte form.
        if (index + 1 >= end) {
          return false;
        }
        int byte2 = bytes[index++];
        if (byte2 > (byte) 0xBF
            // Overlong? 5 most significant bits must not all be zero.
            || (byte1 == (byte) 0xE0 && byte2 < (byte) 0xA0)
            // Check for illegal surrogate codepoints.
            || (byte1 == (byte) 0xED && byte2 >= (byte) 0xA0)