ioutilx "github.com/minio/minio/internal/ioutil"
)

//go:generate stringer -type=osMetric -trimprefix=osMetric $GOFILE

type osMetric uint8

const (
	osMetricRemoveAll osMetric = iota
	osMetricMkdirAll
	osMetricMkdir
	osMetricRename
	osMetricOpenFileW
	osMetricOpenFileR
	osMetricOpenFileWFd
	osMetricOpenFileRFd
	osMetricOpen
	osMetricOpenFileDirectIO
	osMetricLstat
	osMetricRemove

			return f.f
		}
	}
	return formatUnknown
}

//go:generate stringer -type=format -trimprefix=format $GOFILE
type format int

const (
	formatUnknown format = iota
	formatGzip
	formatZstd
	formatLZ4
	formatS2
	formatBZ2
)

var magicHeaders = []struct {
	header []byte
	f      format
}{
	{
		header: []byte{0x1f, 0x8b, 8},
		f:      formatGzip,
	},

	rs.Bucket = bucket
	rs.Object = fi.Name
}

type rstats []*rebalanceStats

//go:generate stringer -type=rebalStatus -trimprefix=rebal $GOFILE
type rebalStatus uint8

const (
	rebalNone rebalStatus = iota
	rebalStarted
	rebalCompleted
	rebalStopped
	rebalFailed
)

type rebalanceInfo struct {
	StartTime time.Time   `msg:"startTs"` // Time at which rebalance-start was issued

// "s3:Replication:OperationCompletedReplication" is a MinIO extension.
type Name int

// Values of event Name
const (
	// Single event types (does not require expansion)

	ObjectAccessedGet Name = 1 + iota
	ObjectAccessedGetRetention
	ObjectAccessedGetLegalHold
	ObjectAccessedHead
	ObjectAccessedAttributes
	ObjectCreatedCompleteMultipartUpload
	ObjectCreatedCopy
	ObjectCreatedPost
	ObjectCreatedPut

type ChecksumType uint32

const (

	// ChecksumTrailing indicates the checksum will be sent in the trailing header.
	// Another checksum type will be set.
	ChecksumTrailing ChecksumType = 1 << iota

	// ChecksumSHA256 indicates a SHA256 checksum.
	ChecksumSHA256
	// ChecksumSHA1 indicates a SHA-1 checksum.
	ChecksumSHA1
	// ChecksumCRC32 indicates a CRC32 checksum with IEEE table.
	ChecksumCRC32

	"github.com/minio/minio/internal/logger"
)

//go:generate stringer -type=storageMetric -trimprefix=storageMetric $GOFILE

type storageMetric uint8

const (
	storageMetricMakeVolBulk storageMetric = iota
	storageMetricMakeVol
	storageMetricListVols
	storageMetricStatVol
	storageMetricDeleteVol
	storageMetricWalkDir
	storageMetricListDir
	storageMetricReadFile
	storageMetricAppendFile
	storageMetricCreateFile

}

// RQErrType reason for read quorum error.
type RQErrType int

const (
	// RQInsufficientOnlineDrives - not enough online drives.
	RQInsufficientOnlineDrives RQErrType = 1 << iota
	// RQInconsistentMeta - inconsistent metadata.
	RQInconsistentMeta
)

func (t RQErrType) String() string {
	switch t {
	case RQInsufficientOnlineDrives:
		return "InsufficientOnlineDrives"

}

// Authorization type.
//
//go:generate stringer -type=authType -trimprefix=authType $GOFILE
type authType int

// List of all supported auth types.
const (
	authTypeUnknown authType = iota
	authTypeAnonymous
	authTypePresigned
	authTypePresignedV2
	authTypePostPolicy
	authTypeStreamingSigned
	authTypeSigned
	authTypeSignedV2
	authTypeJWT
	authTypeSTS
	authTypeStreamingSignedTrailer

type APIErrorCode int

//go:generate stringer -type=APIErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
const (
	ErrNone APIErrorCode = iota
	ErrAccessDenied
	ErrBadDigest
	ErrEntityTooSmall
	ErrEntityTooLarge
	ErrPolicyTooLarge
	ErrIncompleteBody
	ErrInternalError
	ErrInvalidAccessKeyID
	ErrAccessKeyDisabled
	ErrInvalidArgument

	configLoaded chan struct{}
}

// IAMUserType represents a user type inside MinIO server
type IAMUserType int

const (
	unknownIAMUserType IAMUserType = iota - 1
	regUser
	stsUser
	svcUser
)

// LoadGroup - loads a specific group from storage, and updates the
// memberships cache. If the specified group does not exist in