}

// RoundTripper provides an interface for type roundtrip serialization.
type RoundTripper interface {
	msgp.Unmarshaler
	msgp.Marshaler
	msgp.Sizer

	comparable
}

// SingleHandler is a type safe handler for single roundtrip requests.
type SingleHandler[Req, Resp RoundTripper] struct {
	id            HandlerID
	sharedResp    bool

func (NoPayload) Recycle() {}

// ArrayOf wraps an array of Messagepack compatible objects.
type ArrayOf[T RoundTripper] struct {
	aPool sync.Pool     // Arrays
	ePool bpool.Pool[T] // Elements
}

// NewArrayOf returns a new ArrayOf.
// You must provide a function that returns a new instance of T.
func NewArrayOf[T RoundTripper](newFn func() T) *ArrayOf[T] {
	return &ArrayOf[T]{
		ePool: bpool.Pool[T]{New: func() T {

	globalMRFState = newMRFState()

	// If writes to FS backend should be O_SYNC.
	globalFSOSync bool

	globalProxyEndpoints []ProxyEndpoint

	globalInternodeTransport http.RoundTripper

	globalRemoteTargetTransport http.RoundTripper

	globalDNSCache = &dnscache.Resolver{
		Timeout: 5 * time.Second,
	}

	globalForwarder *handlers.Forwarder

	globalTierConfigMgr *TierConfigMgr

	releaseInfo = fields[1]

	releaseTime, err = releaseInfoToReleaseTime(releaseInfo)
	return sha256Sum, releaseTime, releaseInfo, err
}

func getUpdateTransport(timeout time.Duration) http.RoundTripper {
	var updateTransport http.RoundTripper = &http.Transport{
		Proxy:                 http.ProxyFromEnvironment,
		DialContext:           xhttp.NewInternodeDialContext(timeout, globalTCPOptions),
		IdleConnTimeout:       timeout,

	// map of config names to providerCfg's
	ProviderCfgs map[string]*providerCfg

	pubKeys          publicKeys
	roleArnPolicyMap map[arn.ARN]string

	transport   http.RoundTripper
	closeRespFn func(io.ReadCloser)
}

// Clone returns a cloned copy of OpenID config.
func (r *Config) Clone() Config {
	if r == nil {
		return Config{}
	}
	cfg := Config{

		remoteIP:    remoteIP,
	}
	return sftp.Handlers{
		FileGet:  handler,
		FilePut:  handler,
		FileCmd:  handler,
		FileList: handler,
	}
}

type forwardForTransport struct {
	tr  http.RoundTripper
	fwd string
}

func (f forwardForTransport) RoundTrip(r *http.Request) (*http.Response, error) {
	r.Header.Set("X-Forwarded-For", f.fwd)
	return f.tr.RoundTrip(r)
}

// Close closes all idle connections of the underlying http client
func (c *Client) Close() {
	atomic.StoreInt32(&c.connected, closed)
}

// NewClient - returns new REST client.
func NewClient(uu *url.URL, tr http.RoundTripper, auth func() string) *Client {
	connected := int32(online)
	urlStr := uu.String()
	u, err := url.Parse(urlStr)
	if err != nil {
		// Mark offline, with no reconnection attempts.
		connected = int32(offline)

	}
	return subtle.ConstantTimeCompare([]byte(ui.Credentials.SecretKey), []byte(password)) == 1, nil
}

func (driver *ftpDriver) getMinIOClient(ctx *ftp.Context) (*minio.Client, error) {
	tr := http.RoundTripper(globalRemoteFTPClientTransport)
	if host, _, err := net.SplitHostPort(ctx.Sess.RemoteAddr().String()); err == nil {
		tr = forwardForTransport{tr: tr, fwd: host}
	}

var validRoleIDRegex = regexp.MustCompile(`^[A-Za-z0-9_-]+$`)

// Args for authentication plugin.
type Args struct {
	URL         *xnet.URL
	AuthToken   string
	Transport   http.RoundTripper
	CloseRespFn func(r io.ReadCloser)

	RolePolicy string
	RoleARN    arn.ARN
}

// Validate - validate configuration params.
func (a *Args) Validate() error {

	URLEndpointType
)

// ProxyEndpoint - endpoint used for proxy redirects
// See proxyRequest() for details.
type ProxyEndpoint struct {
	Endpoint
	Transport http.RoundTripper
}

// Node holds information about a node in this cluster
type Node struct {
	*url.URL
	Pools    []int
	IsLocal  bool
	GridHost string
}

// Endpoint - any type of endpoint.