// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package heal

import "github.com/minio/minio/internal/config"

// Help template for caching feature.
var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help provides help for config values
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         Bitrot,

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/pubsub"
)

const bootstrapTraceLimit = 4 << 10

type bootstrapTracer struct {
	mu   sync.RWMutex
	info []madmin.TraceInfo
}

var globalBootstrapTracer = &bootstrapTracer{}

func (bs *bootstrapTracer) Record(info madmin.TraceInfo) {
	bs.mu.Lock()
	defer bs.mu.Unlock()

	if len(bs.info) > bootstrapTraceLimit {
		return
	}

	transitionPendingTasks         = "transition_pending_tasks"
	transitionMissedImmediateTasks = "transition_missed_immediate_tasks"
	versionsScanned                = "versions_scanned"
)

var (
	ilmExpiryPendingTasksMD             = NewGaugeMD(expiryPendingTasks, "Number of pending ILM expiry tasks in the queue")
	ilmTransitionActiveTasksMD          = NewGaugeMD(transitionActiveTasks, "Number of active ILM transition tasks")

type Algorithm string

// UnmarshalXML - Unmarshals XML tag to valid SSE algorithm
func (alg *Algorithm) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	var s string
	if err := d.DecodeElement(&s, &start); err != nil {
		return err
	}

	switch s {
	case string(AES256):
		*alg = AES256
	case string(AWSKms):
		*alg = AWSKms
	default:

	DriveWorkers = "drive_workers"

	EnvBitrot       = "MINIO_HEAL_BITROTSCAN"
	EnvSleep        = "MINIO_HEAL_MAX_SLEEP"
	EnvIOCount      = "MINIO_HEAL_MAX_IO"
	EnvDriveWorkers = "MINIO_HEAL_DRIVE_WORKERS"
)

var configMutex sync.RWMutex

// Config represents the heal settings.
type Config struct {
	// Bitrot will perform bitrot scan on local disk when checking objects.
	Bitrot string `json:"bitrotscan"`

	default:
		return fmt.Errorf("unknown checksum type: %s", c.Type.String())
	}
	c.Encoded = base64.StdEncoding.EncodeToString(c.Raw)
	return nil
}

const crc64NVMEPolynomial = 0xad93d23594c93659

var crc64Table = crc64.MakeTable(bits.Reverse64(crc64NVMEPolynomial))

// Following is ported from C to Go in 2016 by Justin Ruggles, with minimal alteration.

	"io"
	"net"
	"net/http"
	"net/url"
	"strconv"
	"strings"
	"time"

	"github.com/golang-jwt/jwt/v4"
	"github.com/minio/minio/internal/config"
	xhttp "github.com/minio/minio/internal/http"
)

var (
	defaultOperatorContextTimeout = 10 * time.Second
	// ErrNotImplemented - Indicates the functionality which is not implemented
	ErrNotImplemented = errors.New("The method is not implemented")
)

		}
	}
	return HelpKV{}, false
}

// DefaultComment used across all sub-systems.
const DefaultComment = "optionally add a comment to this setting"

// Region help is documented in default config
var (
	SiteHelp = HelpKVS{
		HelpKV{
			Key:         NameKey,
			Type:        "string",
			Description: `name for the site e.g. "cal-rack0"`,
			Optional:    true,
		},
		HelpKV{
			Key:         RegionKey,

	if sync {
		list.sendSync(event, targetIDset)
	} else {
		list.sendAsync(event, targetIDset)
	}
}

func (list *TargetList) sendSync(event Event, targetIDset TargetIDSet) {
	var wg sync.WaitGroup
	for id := range targetIDset {
		target, ok := list.get(id)
		if !ok {
			continue
		}
		wg.Add(1)
		go func(id TargetID, target Target) {
			list.currentSendCalls.Add(1)

	r.wait()
	return err
}

// WaitPipe implements wait-group backend io.Pipe to provide
// synchronization between read() end with write() end.
func WaitPipe() (*PipeReader, *PipeWriter) {
	r, w := io.Pipe()
	var wg sync.WaitGroup
	wg.Add(1)
	return &PipeReader{
			PipeReader: r,
			wait:       wg.Wait,
		}, &PipeWriter{
			PipeWriter: w,
			done:       wg.Done,
		}