HashingInputStream in = new HashingInputStream(Hashing.md5(), buffer);

    byte[] buf = new byte[100];
    int numOfByteRead = in.read(buf, 0, buf.length);
    assertEquals(-1, in.read()); // additional read
    assertEquals(4, numOfByteRead);

    assertEquals(expectedHash, in.hash());
  }

  public void testHash_hashesCorrectlyForSkipping() throws Exception {

    HashingInputStream in = new HashingInputStream(Hashing.md5(), buffer);

    byte[] buf = new byte[100];
    int numOfByteRead = in.read(buf, 0, buf.length);
    assertEquals(-1, in.read()); // additional read
    assertEquals(4, numOfByteRead);

    assertEquals(expectedHash, in.hash());
  }

  public void testHash_hashesCorrectlyForSkipping() throws Exception {

            // yes, there really is non ASN.1/DER data inside the tagged object
            int read = 0;
            int readLow = stream.read() & 0xff;
            int readHigh = stream.read() & 0xff;
            read = ( readHigh << 8 ) + readLow;
            if ( read != 0x01 )
                throw new PACDecodingException("Malformed kerberos token");

          try (InputStreamReader reader = new InputStreamReader(byteSource.openStream(), cs)) {
            int nRead = 0;
            while (remaining > 0 && (nRead = reader.read(buffer, bufIndex, remaining)) != -1) {
              bufIndex += nRead;
              remaining -= nRead;
            }
            if (nRead == -1) {
              // we reached EOF
              return new String(buffer, 0, bufIndex);
            }

import java.nio.channels.FileChannel
import okio.Buffer

/**
 * Read and write a target file. Unlike Okio's built-in `Okio.source(java.io.File file)` and `Okio.sink(java.io.File file)`
 * this class offers:
 *
 *  * **Read/write:** read and write using the same operator.
 *  * **Random access:** access any position within the file.
 *  * **Shared channels:** read and write a file channel that's shared between

        You normally wouldn't use this from a file you read in a request.

        To be awaitable, compatible with async, this is run in threadpool.
        """
        return await super().write(data)

    async def read(
        self,
        size: Annotated[
            int,
            Doc(
                """
                The number of bytes to read from the file.
                """
            ),

		panic("Failed to acquire read lock")
	}
	// fmt.Println("1st read lock acquired, waiting...")

	drwm2 := NewDRWMutex(ds, "simplelock")
	ctx2, cancel2 := context.WithCancel(context.Background())
	if !drwm2.GetRLock(ctx2, cancel2, id, source, Options{Timeout: time.Second}) {
		panic("Failed to acquire read lock")
	}
	// fmt.Println("2nd read lock acquired, waiting...")

	go func() {

    }


    @Override
    public int read () throws SmbException {
        if ( read(this.tmp, 0, 1) == -1 ) {
            return -1;
        }
        return this.tmp[ 0 ] & 0xFF;
    }


    @Override
    public int read ( byte b[] ) throws SmbException {
        return read(b, 0, b.length);
    }


    @Override
    public int read ( byte b[], int off, int len ) throws SmbException {

  public boolean closed() {
    return closed;
  }

  @Override
  public int read() throws IOException {
    throwIf(closed);
    throwIf(READ_THROWS);
    return in.read();
  }

  @Override
  public int read(byte[] b, int off, int len) throws IOException {
    throwIf(closed);
    throwIf(READ_THROWS);
    return in.read(b, off, len);
  }

  @Override
  public long skip(long n) throws IOException {

// A HardLimitedReader reads from R but limits the amount of
// data returned to just N bytes. Each call to Read
// updates N to reflect the new amount remaining.
// Read returns EOF when N <= 0 or when the underlying R returns EOF.
type HardLimitedReader struct {
	R io.Reader // underlying reader
	N int64     // max bytes remaining
}

func (l *HardLimitedReader) Read(p []byte) (n int, err error) {
	if l.N < 0 {