assertEquals(0, ticker.read());
    assertEquals(10, ticker.read());
    assertEquals(20, ticker.read());
  }

  public void testAutoIncrementStep_millis() {
    FakeTicker ticker = new FakeTicker().setAutoIncrementStep(1, MILLISECONDS);
    assertEquals(0, ticker.read());
    assertEquals(1000000, ticker.read());
    assertEquals(2000000, ticker.read());
  }

     */

    @Override
    public int read(final byte[] b, final int off, final int len) throws IOException {
        return readDirect(b, off, len);
    }

    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     * Optimized for better performance with larger read sizes and reduced round trips.
     *
     * @param b the buffer to read into

     * @param remoteKey remote memory key
     * @param length number of bytes to read
     * @return number of bytes actually read
     * @throws IOException if read operation fails
     */
    public abstract int read(ByteBuffer buffer, long remoteAddress, int remoteKey, int length) throws IOException;

    /**
     * Write data to RDMA connection
     *
     * @param buffer buffer containing data to write

/**
 * Generic interface to read/write objects to/from XML.
 *
 * @param <T> the object type to read/write
 * @since 4.0.0
 */
@Experimental
public interface XmlFactory<T> extends Service {

    @Nonnull
    default T read(@Nonnull Path path) throws XmlReaderException {
        return read(path, true);
    }

    @Nonnull
    default T read(@Nonnull Path path, boolean strict) throws XmlReaderException {

import jcifs.internal.util.SMBUtil;

/**
 * SMB1 Read AndX Response message.
 *
 * This response contains the data that was read from the file
 * along with information about the read operation.
 */
public class SmbComReadAndXResponse extends AndXServerMessageBlock {

    private byte[] data;
    private int offset, dataCompactionMode, dataLength, dataOffset;

    /**
     * Constructs a Read AndX response.
     *

    /**
     * Read and Write caching (RW)
     */
    public static final int SMB2_LEASE_READ_WRITE = 0x05;

    /**
     * Full caching - Read, Write and Handle (RWH)
     */
    public static final int SMB2_LEASE_FULL = 0x07;

    private Smb2LeaseState() {
        // Utility class
    }

    /**
     * Check if state has read caching
     * @param state lease state

    assertEquals(expected, new String(buf));
    assertFullyRead(reader);

    // read in chunks to fixed array
    reader = new CharSequenceReader(charSequence);
    buf = new char[5];
    StringBuilder builder = new StringBuilder();
    int read;
    while ((read = reader.read(buf, 0, buf.length)) != -1) {
      builder.append(buf, 0, read);
    }

     */
    int read(byte[] b) throws SmbException;

    /**
     * Read into buffer from current position
     *
     * @param b
     *            buffer
     * @param off
     *            offset into buffer
     * @param len
     *            read up to <code>len</code> bytes
     * @return number of bytes read
     * @throws SmbException if an I/O error occurs during read
     */

// Use it with other programs, like
$ echo "Hello $Env:MY_NAME"

Hello Wade Wilson
```

</div>

////

## Read env vars in Python { #read-env-vars-in-python }

You could also create environment variables **outside** of Python, in the terminal (or with any other method), and then **read them in Python**.

For example you could have a file `main.py` with:

```Python hl_lines="3"
import os

        sourcePos += bytesToRead
        return bytesToRead
      }

      // Read from upstream. This always reads a full buffer: that might be more than what the
      // current call to Source.read() has requested.
      try {
        val upstreamBytesRead = upstream!!.read(upstreamBuffer, bufferMaxSize)

        // If we've exhausted upstream, we're done.