startOffset, length, err := rs.GetOffsetLength(actualPartSize)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// maximum copy size for multipart objects in a single operation
	if isMaxObjectSize(length) {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
		return
	}

	if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {

     * @param append
     *            whether to append to or truncate the input
     * @param openFlags
     *            flags for open operation
     * @param access
     *            desired file access flags
     * @param sharing
     *            flags indicating for which operations others may open the file
     * @return output stream, needs to be closed when finished

  // so there is no object state put at risk by stopping the threads abruptly. In some cases a test
  // may put a thread into an uninterruptible operation intentionally, so there is no other way to
  // clean up these threads.
  @SuppressWarnings("deprecation")
  @Override
  public void tearDown() throws Exception {
    stop();
    join();

Let's start with an example and then see it in detail.

We create an async function `lifespan()` with `yield` like this:

{* ../../docs_src/events/tutorial003.py hl[16,19] *}

Here we are simulating the expensive *startup* operation of loading the model by putting the (fake) model function in the dictionary with machine learning models before the `yield`. This code will be executed **before** the application **starts taking requests**, during the *startup*.

		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
		return
	}

	kmsContext := kms.Context{"MinIO admin API": "KMSKeyStatusHandler"} // Context for a test key operation
	// 1. Generate a new key using the KMS.
	key, err := GlobalKMS.GenerateKey(ctx, &kms.GenerateKeyRequest{Name: keyID, AssociatedData: kmsContext})
	if err != nil {
		response.EncryptionErr = err.Error()

        return new MetricsEventListener(call);
      } else {
        return EventListener.NONE;
      }
    }
  };

  ...
}
```

### Events with Failures

		return
	}
	offset = (0xe << 24) | // opcode
		(op1 << 20) | // MCR/MRC
		((int64(bits) ^ arm.C_SCOND_XOR) << 28) | // scond
		((x0 & 15) << 8) | //coprocessor number
		((x1 & 7) << 21) | // coprocessor operation
		((x2 & 15) << 12) | // ARM register
		((x3 & 15) << 16) | // Crn
		((x4 & 15) << 0) | // Crm
		((x5 & 7) << 5) | // coprocessor information
		(1 << 4) /* must be set */
	return offset, arm.AMRC, true
}

    /**
     * Lock and read operation is supported capability.
     */
    int CAP_LOCK_AND_READ = 0x0100;
    /**
     * NT find operations are supported capability.
     */
    int CAP_NT_FIND = 0x0200;
    /**
     * DFS operations are supported capability.
     */
    int CAP_DFS = 0x1000;
    /**
     * Large read operations are supported capability.
     */

{* ../../docs_src/metadata/tutorial004.py hl[21,26] *}

/// info

Lesen Sie mehr zu Tags unter [Pfadoperation-Konfiguration](path-operation-configuration.md#tags){.internal-link target=_blank}.

///

### Die Dokumentation anschauen

Wenn Sie nun die Dokumentation ansehen, werden dort alle zusätzlichen Metadaten angezeigt:

import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;
import jcifs.smb.SmbException;

/**
 * SMB2 IOCTL response message. This response contains the result of a device control
 * operation on the server.
 *
 * @author mbechler
 *
 */
public class Smb2IoctlResponse extends ServerMessageBlock2Response {

    private final byte[] outputBuffer;
    private int ctlCode;
    private byte[] fileId;