func (r *lockedRandSource) Int63() (n int64) {
	r.lk.Lock()
	n = r.src.Int63()
	r.lk.Unlock()
	return
}

// Seed uses the provided seed value to initialize the generator to a
// deterministic state.
func (r *lockedRandSource) Seed(seed int64) {
	r.lk.Lock()
	r.src.Seed(seed)
	r.lk.Unlock()

			timeout.LogFailure()
		} else {
			timeout.LogSuccess(duration)
		}
	}
}

func TestDynamicTimeoutAdjustExponential(t *testing.T) {
	timeout := newDynamicTimeout(time.Minute, time.Second)

	rand.Seed(0)

	initial := timeout.Timeout()

	for try := 0; try < 10; try++ {
		testDynamicTimeoutAdjust(t, timeout, rand.ExpFloat64)
	}

	adjusted := timeout.Timeout()
	if initial <= adjusted {

func getRandomRange(min, max int, seed int64) int {
	// special value -1 means no explicit seeding.
	if seed != -1 {
		rand.Seed(seed)
	}
	return rand.Intn(max-min) + min
}

// Randomizes the order of bytes in the byte array
// using Knuth Fisher-Yates shuffle algorithm.
func randomizeBytes(s []byte, seed int64) []byte {
	// special value -1 means no explicit seeding.

//
// You can use returned dial function for `http.Transport.DialContext`.
//
// In this function, it uses functions from `rand` package. To make it really random,
// you MUST call `rand.Seed` and change the value from the default in your application
func DialContextWithLookupHost(lookupHost LookupHost, baseDialCtx DialContext) DialContext {
	if lookupHost == nil {
		lookupHost = net.DefaultResolver.LookupHost
	}

// randomly picks a character and returns its equivalent byte array.
func getRandomByte() []byte {
	const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
	// seeding the random number generator.
	rand.Seed(UTCNow().UnixNano())
	// pick a character randomly.
	return []byte{letterBytes[rand.Intn(len(letterBytes))]}
}

// picks a random byte and repeats it to size bytes.
func generateBytesData(size int) []byte {

	response, err = s.client.Get(getGetObjectURL(s.endPoint, bucketName, objectName+".1"))
	c.Assert(err, nil)
	// assert the http response status code.
	verifyError(c, response, "AccessDenied", "Access Denied.", http.StatusForbidden)

	// initiate anonymous HTTP request to fetch the object which does exist. We need to return AccessDenied.

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// calculateSeedSignature - Calculate seed signature in accordance with
//   - http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html
//
// returns signature, error otherwise if the signature mismatches or any other
// error while parsing and validating.

}

// SetIdentityLDAP - One time migration code needed, for migrating from older config to new for LDAPConfig.
func SetIdentityLDAP(s config.Config, ldapArgs LegacyConfig) {
	if !ldapArgs.Enabled {
		// ldap not enabled no need to preserve it in new settings.
		return
	}
	s[config.IdentityLDAPSubSys][config.Default] = config.KVS{
		config.KV{
			Key:   ServerAddr,
			Value: ldapArgs.ServerAddr,
		},
		config.KV{

		for _, p := range globalProfiler {
			p.Stop()
		}

		if success {
			os.Exit(0)
		}

		os.Exit(1)
	}

	stopProcess := func() bool {
		// send signal to various go-routines that they need to quit.
		cancelGlobalContext()

		if httpServer := newHTTPServerFn(); httpServer != nil {
			if err := httpServer.Shutdown(); err != nil && !errors.Is(err, http.ErrServerClosed) {
				shutdownLogIf(context.Background(), err)

	for {
		select {
		case <-GlobalContext.Done():
			return
		case u, ok := <-m.opCh:
			if !ok {
				return
			}

			// We might land at .metacache, .trash, .multipart
			// no need to heal them skip, only when bucket
			// is '.minio.sys'
			if u.bucket == minioMetaBucket {
				// No MRF needed for temporary objects
				if wildcard.Match("buckets/*/.metacache/*", u.object) {
					continue
				}