w = uw.Unwrap()
		} else {
			return false
		}
	}
}

// trackingResponseWriter wraps a ResponseWriter and notes when WriterHeader has
// been called. This allows high level request handlers to check if something
// has already sent the header.
type trackingResponseWriter struct {
	http.ResponseWriter
	headerWritten bool
}

ck?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/minio/minio/blob/master/LICENSE) MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. It is API compatible with Amazon S3 cloud storage service. Use MinIO to build high performance infrastructure for machine learning, analytics and application data workloads. For more detailed documentation please visit [here](https://docs.minio.io/)...

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		}
	}

	modTime = UTCNow() // We only preserve modTime if dstOpts.MTime is true.
	// in all other cases mtime is latest.

	fi.VersionID = versionID // set any new versionID we might have created
	fi.ModTime = modTime     // set modTime for the new versionID
	if !dstOpts.MTime.IsZero() {
		modTime = dstOpts.MTime
		fi.ModTime = dstOpts.MTime
	}
	// check inline before overwriting metadata.

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedRightParenBuiltinFunctionCall: {
		Code:           "ParseExpectedRightParenBuiltinFunctionCall",
		Description:    "Did not find the expected right parenthesis character in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedTypeName: {
		Code:           "ParseExpectedTypeName",

		parts:            oi.Parts,
		partIndex:        partStart,
	}

	// In case of SSE-C, we have to decrypt the OEK using the client-provided key.
	// In case of a SSE-C server-side copy, the client might provide two keys,
	// one for the source and one for the target. This reader is the source.
	var ssecClientKey []byte
	if crypto.SSEC.IsEncrypted(oi.UserDefined) {
		if copySource && crypto.SSECopy.IsRequested(h) {

		return err
	}

	update, err := meta.validate(z.serverPools)
	if err != nil {
		return err
	}

	// if no update is needed return right away.
	if !update {
		z.poolMetaMutex.Lock()
		z.poolMeta = meta
		z.poolMetaMutex.Unlock()
	} else {
		newMeta := newPoolMeta(z, meta)
		if err = newMeta.save(ctx, z.serverPools); err != nil {

ck?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/minio/minio/blob/master/LICENSE) MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. It is API compatible with Amazon S3 cloud storage service. Use MinIO to build high performance infrastructure for machine learning, analytics and application data workloads. For more detailed documentation please visit [here](https://docs.minio.io/)...