)

// Target - lambda target interface
type Target interface {
	ID() TargetID
	IsActive() (bool, error)
	Send(Event) (*http.Response, error)
	Stat() TargetStat
	Close() error
}

// TargetStats is a collection of stats for multiple targets.
type TargetStats struct {
	TargetStats map[string]TargetStat
}

// TargetStat is the stats of a single target.
type TargetStat struct {
	ID             TargetID

// StorageErr represents error generated by xlStorage call.
type StorageErr string

func (h StorageErr) Error() string {
	return string(h)
}

// Collection of basic errors.
var baseErrs = []error{
	errDiskNotFound,
	errFaultyDisk,
	errFaultyRemoteDisk,
}

var baseIgnoredErrs = baseErrs

// Is a one place function which converts all os.PathError

	Save(Event) error
	SendFromStore(store.Key) error
	Close() error
	Store() TargetStore
}

// TargetStore is a shallow version of a target.Store
type TargetStore interface {
	Len() int
}

// Stats is a collection of stats for multiple targets.
type Stats struct {
	TotalEvents        int64 // Deprecated
	EventsSkipped      int64
	CurrentQueuedCalls int64 // Deprecated
	EventsErrorsTotal  int64 // Deprecated

// there were no available workers.
func (e *expiryStats) MissedTasks() int64 {
	return e.missedExpiryTasks.Load()
}

// MissedFreeVersTasks returns the number of free version collection tasks that
// were missed since there were no available workers.
func (e *expiryStats) MissedFreeVersTasks() int64 {
	return e.missedFreeVersTasks.Load()
}

type DeleteObjectsResponse struct {
	XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ DeleteResult" json:"-"`

	// Collection of all deleted objects
	DeletedObjects []DeletedObject `xml:"Deleted,omitempty"`

	// Collection of errors deleting certain objects.
	Errors []DeleteError `xml:"Error,omitempty"`
}

)

// tierConfigPath refers to remote tier config object name
var tierConfigPath = path.Join(minioConfigPrefix, tierConfigFile)

const tierCfgRefreshAtHdr = "X-MinIO-TierCfg-RefreshedAt"

// TierConfigMgr holds the collection of remote tiers configured in this deployment.
type TierConfigMgr struct {
	sync.RWMutex `msg:"-"`
	drivercache  map[string]WarmBackend `msg:"-"`

	Tiers           map[string]madmin.TierConfig `json:"tiers"`

	if err != nil {
		// Failed to create newbucket, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	obj.DeleteBucket(context.Background(), "abc", DeleteBucketOptions{})

	// Collection of non-exhaustive PutObjectPart test cases, valid errors
	// and success responses.
	testCases := []struct {
		bucketName      string
		objName         string
		uploadID        string
		PartID          int

	TotalErrorsTimeout      uint64             `json:"totalErrsTimeout"`
	TotalWrites             uint64             `json:"totalWrites"`
	TotalDeletes            uint64             `json:"totalDeletes"`
}

// VolsInfo is a collection of volume(bucket) information
type VolsInfo []VolInfo

// VolInfo - represents volume stat information.
// The above means that any added/deleted fields are incompatible.
//

	if !s.checkID(p.DiskID) {
		return grid.NewNPErr(errDiskNotFound)
	}
	return grid.NewNPErr(s.getStorage().Delete(context.Background(), p.Volume, p.FilePath, p.Opts))
}

// DeleteVersionsErrsResp - collection of delete errors
// for bulk version deletes
type DeleteVersionsErrsResp struct {
	Errs []error
}

// DeleteVersionsHandler - delete a set of a versions.

	DefaultMaxHeaderBytes = 1 * humanize.MiByte
)

// Server - extended http.Server supports multiple addresses to serve and enhanced connection handling.
type Server struct {
	http.Server
	Addrs           []string      // addresses on which the server listens for new connection.
	TCPOptions      TCPOptions    // all the configurable TCP conn specific configurable options.