type KeyManager interface {
	// CreateKey creates a new key at the KMS with the given key ID.
	CreateKey(ctx context.Context, keyID string) error

	// DeleteKey deletes a key at the KMS with the given key ID.
	// Please note that is a dangerous operation.
	// Once a key has been deleted all data that has been encrypted with it cannot be decrypted
	// anymore, and therefore, is lost.
	DeleteKey(ctx context.Context, keyID string) error

		jd.file = nil // reset to allow subsequent reopen when file/disk is available.
	}
	return err
}

// Close closes the active journal and renames it to read-only for pending
// deletes processing. Note: calling Close on a closed journal is a no-op.
func (jd *tierDiskJournal) Close() error {
	jd.Lock()
	defer jd.Unlock()
	if jd.file == nil { // already closed
		return nil
	}

	var (
		f   *os.File

			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiODirect,
			Description: "set to enable or disable O_DIRECT for writes under special conditions. NOTE: do not disable O_DIRECT without prior testing" + defaultHelpPostfix(apiODirect),
			Optional:    true,
			Type:        "boolean",
		},
		config.HelpKV{
			Key:         apiRootAccess,

	envValues := make(map[string]string, len(envs))
	for _, envK := range envs {
		// skip certain environment variables as part
		// of the whitelist and could be configured
		// differently on each nodes, update skipEnvs()
		// map if there are such environment values
		if _, ok := skipEnvs[envK]; ok {
			continue
		}
		envValues[envK] = logger.HashString(env.Get(envK, ""))
	}

	ClientWriteTimeout time.Duration

	SendBufSize int              // SO_SNDBUF size for the socket connection, NOTE: this sets server and client connection
	RecvBufSize int              // SO_RECVBUF size for the socket connection, NOTE: this sets server and client connection
	Interface   string           // This is a VRF device passed via `--interface` flag

package http

import (
	"context"
	"net"
	"syscall"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {

	minPartSize               = 1024 * 1024 * 128 // chosen by us to be optimal for HDDs
)

// optimalPartInfo - calculate the optimal part info for a given
// object size.
//
// NOTE: Assumption here is that for any object to be uploaded to any S3 compatible
// object storage it will have the following parameters as constants.
//
//	maxPartsCount - 10000
//	maxMultipartPutObjectSize - 5TiB

	sync.RWMutex
	pubsub   *pubsub.PubSub[log.Info, madmin.LogMask]
	console  *console.Target
	nodeName string
	logBuf   *ring.Ring
}

// NewConsoleLogger - creates new HTTPConsoleLoggerSys with all nodes subscribed to
// the console logging pub sub system
func NewConsoleLogger(ctx context.Context, w io.Writer) *HTTPConsoleLoggerSys {
	return &HTTPConsoleLoggerSys{
		pubsub:  pubsub.New[log.Info, madmin.LogMask](8),

		pType = tagPred
		predCount++
	}
	if f.ObjectSizeGreaterThan != 0 {
		pType = sizeGtPred
		predCount++
	}
	if f.ObjectSizeLessThan != 0 {
		pType = sizeLtPred
		predCount++
	}
	// Note: S3 supports empty <Filter></Filter>, so predCount == 0 is
	// valid.
	if predCount > 1 {
		return errInvalidFilter
	}

	var err error
	switch pType {
	case nonePred:

	return nil
}

const (
	healthNodesOfflineCount = "nodes_offline_count"
	healthNodesOnlineCount  = "nodes_online_count"
)

var (
	healthNodesOfflineCountMD = NewGaugeMD(healthNodesOfflineCount,
		"Count of offline nodes in the cluster")
	healthNodesOnlineCountMD = NewGaugeMD(healthNodesOnlineCount,
		"Count of online nodes in the cluster")
)