//
// Default is "availability" optimized, unless this is configured.
func (sCfg *Config) CapacityOptimized() bool {
	ConfigLock.RLock()
	defer ConfigLock.RUnlock()
	if !sCfg.initialized {
		return false
	}
	return sCfg.Optimize == "capacity"
}

// AvailabilityOptimized - returns true if the storage-class is availability

	driveTotalInodes             = "total_inodes"
	driveTimeoutErrorsTotal      = "timeout_errors_total"
	driveIOErrorsTotal           = "io_errors_total"
	driveAvailabilityErrorsTotal = "availability_errors_total"
	driveWaitingIO               = "waiting_io"
	driveAPILatencyMicros        = "api_latency_micros"
	driveHealing                 = "healing"
	driveOnline                  = "online"

)

// Detects change in underlying disk.
type xlStorageDiskIDCheck struct {
	totalWrites           atomic.Uint64
	totalDeletes          atomic.Uint64
	totalErrsAvailability atomic.Uint64 // Captures all data availability errors such as faulty disk, timeout errors.
	totalErrsTimeout      atomic.Uint64 // Captures all timeout only errors

	// apiCalls should be placed first so alignment is guaranteed for atomic operations.

// name displayed in logs and trace to be accurate. The name is extracted via
// reflection.
//
// When no flags are passed, gzip compression, http tracing of headers and
// checking of object layer availability are all enabled. Use flags to modify
// this behavior.
func adminMiddleware(f http.HandlerFunc, flags ...hFlag) http.HandlerFunc {
	// Collect all flags with bitwise-OR and assign operator
	var handlerFlags hFlag

	}
}

func getNodeDriveAvailabilityErrorsMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,
		Name:      "errors_availability",
		Help:      "Total number of drive I/O errors, timeouts since server start",
		Type:      counterMetric,
	}
}

func getNodeDriveWaitingIOMD() MetricDescription {
	return MetricDescription{

	// to IPv6 address ie minio will start listening on IPv6 address whereas another
	// (non-)minio process is listening on IPv4 of given port.
	// To avoid this error situation we check for port availability.
	logger.FatalIf(xhttp.CheckPortAvailability(globalMinioHost, globalMinioPort, globalTCPOptions), "Unable to start the server")
}

func initAllSubsystems(ctx context.Context) {
	// Initialize notification peer targets