// Failed - versioned delete replication failed.
	Failed VersionPurgeStatusType = "FAILED"
)

// Empty returns true if purge status was not set.
func (v VersionPurgeStatusType) Empty() bool {
	return string(v) == ""
}

// Pending returns true if the version is pending purge.
func (v VersionPurgeStatusType) Pending() bool {
	return v == Pending || v == Failed
}

type replicationResyncer struct {

		return errDiskNotFound
	}

	// Marshal and write to disk.
	formatData, err := json.Marshal(format)
	if err != nil {
		return err
	}

	tmpFormat := mustGetUUID()

	// Purge any existing temporary file, okay to ignore errors here.
	defer disk.Delete(context.TODO(), minioMetaBucket, tmpFormat, DeleteOptions{
		Recursive: false,
		Immediate: false,
	})

	// write to unique file.

					// Log if we took a lot of time to load.
					logger.Info("IAM refresh took %.2fs", took)
				}
			}

			// Purge expired STS credentials.
			purgeStart := time.Now()
			if err := sys.store.PurgeExpiredSTS(ctx); err != nil {
				iamLogIf(ctx, fmt.Errorf("Failure in periodic STS purge for IAM (took %.2fs): %v", time.Since(purgeStart).Seconds(), err))
			} else {
				took := time.Since(purgeStart).Seconds()

			continue
		}

		res[listKey] = append(res[listKey], trimmedItem)
	}
	// Store the listing for later re-use.
	iamOS.cachedIAMListing.Store(res)
	return res, nil
}

// PurgeExpiredSTS - purge expired STS credentials from object store.
func (iamOS *IAMObjectStore) PurgeExpiredSTS(ctx context.Context) error {
	if iamOS.objAPI == nil {
		return errServerNotInitialized
	}

func (o *ObjectOptions) DeleteMarkerReplicationStatus() replication.StatusType {
	return o.DeleteReplication.CompositeReplicationStatus()
}

// VersionPurgeStatus - returns version purge status from DeleteReplication state in ObjectOptions
func (o *ObjectOptions) VersionPurgeStatus() VersionPurgeStatusType {
	return o.DeleteReplication.CompositeVersionPurgeStatus()
}

		if opts.SRDeleteOp == MarkDelete {
			z.s3Peer.MakeBucket(context.Background(), pathJoin(minioMetaBucket, bucketMetaPrefix, deletedBucketsPrefix, bucket), MakeBucketOptions{})
		}
	}

	if err == nil {
		// Purge the entire bucket metadata entirely.
		z.deleteAll(context.Background(), minioMetaBucket, pathJoin(bucketMetaPrefix, bucket))
	}

	return toObjectErr(err, bucket)
}

			if dobj.VersionID == "" && rinfo.VersionPurgeStatus.Empty() {
				rinfo.ReplicationStatus = replication.Completed
				return
			}
		case isErrObjectNotFound(serr), isErrVersionNotFound(serr):
			// version being purged is already not found on target.
			if !rinfo.VersionPurgeStatus.Empty() {
				rinfo.VersionPurgeStatus = Complete
				return
			}
		case isErrReadQuorum(serr), isErrWriteQuorum(serr):

	for _, v := range policy.DefaultPolicies {
		if _, ok := policies[v.Name]; !ok {
			policies[v.Name] = defaultPolicyDoc(v.Definition)
		}
	}
}

// PurgeExpiredSTS - purges expired STS credentials.
func (store *IAMStoreSys) PurgeExpiredSTS(ctx context.Context) error {
	iamOS, ok := store.IAMStorageAPI.(*IAMObjectStore)
	if !ok {
		// No purging is done for non-object storage.
		return nil

			// Not using parity to ensure that we do not delete
			// any valid content, if any is recoverable. But if
			// notFoundDataDirs are already greater than the data
			// blocks all bets are off and it is safe to purge.
			//
			// This is purely a defensive code, ideally parityBlocks
			// is sufficient, however we can't know that since we
			// do have the FileInfo{}.
			return validMeta, true
		}

	EnvKESKeyCacheInterval = "MINIO_KMS_KEY_CACHE_INTERVAL" // Period between polls of the KES KMS Master Key cache, to prevent it from being unused and purged