| object_metadata_1 |               | object_metadata_2 |
                    +-------------------+               +-------------------+
```

#### Key rotation - Basic Operation

func (opts Config) ReplicationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.ReplicationWorkersWait
}

// KeyRotationWait returns the duration for which a batch key-rotation worker
// would wait before working on next object.
func (opts Config) KeyRotationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.KeyRotationWorkersWait
}

//go:generate msgp -file $GOFILE -unexported

// BatchKeyRotationType defines key rotation type
type BatchKeyRotationType string

const (
	sses3  BatchKeyRotationType = "sse-s3"
	ssekms BatchKeyRotationType = "sse-kms"
)

// BatchJobKeyRotateEncryption defines key rotation encryption options passed
type BatchJobKeyRotateEncryption struct {
	Type       BatchKeyRotationType `yaml:"type" json:"type"`

	// When FileNameFunc is not specified, DefaultFilenameFunc will be used.
	FileNameFunc func() string

	// Compress specify if you want the logs to be compressed after rotation.
	Compress bool
}

// Writer is a concurrency-safe writer with file rotation.
type Writer struct {
	// opts are the configuration options for this Writer
	opts Options

	// f is the currently open file used for appends.

		"Invalid value for transition workers",
		"",
		"MINIO_API_TRANSITION_WORKERS: should be >= GOMAXPROCS/2",
	)
	ErrInvalidBatchKeyRotationWorkersWait = newErrFn(
		"Invalid value for batch key rotation workers wait",
		"Please input a non-negative duration",
		"keyrotation_workers_wait should be > 0ms",
	)
	ErrInvalidBatchReplicationWorkersWait = newErrFn(
		"Invalid value for batch replication workers wait",

)

var (
	// AWS errors for invalid SSE-C requests.
	errEncryptedObject                = errors.New("The object was stored using a form of SSE")
	errInvalidSSEParameters           = errors.New("The SSE-C key for key-rotation is not correct") // special access denied
	errKMSNotConfigured               = errors.New("KMS not configured for a server side encrypted objects")
	errKMSKeyNotFound                 = errors.New("Unknown KMS key ID")

	// - the object is encrypted using SSE-S3 and the SSE-S3 header is present
	// - the object storage class is not changing
	// then execute a key rotation.
	if cpSrcDstSame && (sseCopyC && sseC) && !chStorageClass {
		oldKey, err = ParseSSECopyCustomerRequest(r.Header, srcInfo.UserDefined)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)

	SEXTH	X17, X18				// 13995860
	XNOR	X18, X19, X20				// 33ca2941 or 33ca2901134afaff
	XNOR	X18, X19				// b3c92941 or b3c9290193c9f9ff
	ZEXTH	X19, X20				// 3bca0908

	// 28.4.2: Bitwise Rotation (Zbb)
	ROL	X8, X9, X10				// 33958460 or b30f8040b3dff4013395840033e5af00
	ROL	X8, X9					// b3948460 or b30f8040b3dff401b3948400b3e49f00
	ROLW	X9, X10, X11				// bb159560 or b30f9040bb5ff501bb159500b3e5bf00

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cff-version: 1.2.0
title: FastAPI
message: >-
  If you use this software, please cite it using the
  metadata from this file.
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    family-names: Ramírez
    email: ******@****.***
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repository-code: 'https://github.com/fastapi/fastapi'

The memory model is specified more formally in the next section.
</p>

<p>
A data race is defined as
a write to a memory location happening concurrently with another read or write to that same location,
unless all the accesses involved are atomic data accesses as provided by the <code>sync/atomic</code> package.
As noted already, programmers are strongly encouraged to use appropriate synchronization