type wholeBitrotReader struct {
	disk       StorageAPI
	volume     string
	filePath   string
	verifier   *BitrotVerifier // Holds the bit-rot info
	tillOffset int64           // Affects the length of data requested in disk.ReadFile depending on Read()'s offset
	buf        []byte          // Holds bit-rot verified data
}

func (b *wholeBitrotReader) ReadAt(buf []byte, offset int64) (n int, err error) {
	if b.buf == nil {

type ContextTraceType string

// ContextTraceKey is the key of TraceCtxt saved in a Golang context
const ContextTraceKey = ContextTraceType("ctx-trace-info")

// TraceCtxt holds related tracing data of a http request.
type TraceCtxt struct {
	RequestRecorder  *xhttp.RequestRecorder
	ResponseRecorder *xhttp.ResponseRecorder

	FuncName string
	AmzReqID string

	listener        *httpListener // HTTP listener for all 'Addrs' field.
	inShutdown      uint32        // indicates whether the server is in shutdown or not
	requestCount    int32         // counter holds no. of request in progress.
}

// GetRequestCount - returns number of request in progress.
func (srv *Server) GetRequestCount() int {
	return int(atomic.LoadInt32(&srv.requestCount))
}

// Init - init HTTP server

	EnvILMExpirationWorkers = "MINIO_ILM_EXPIRATION_WORKERS"
)

var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// HelpILM holds configuration keys and their default values for the ILM
	// subsystem
	HelpILM = config.HelpKVS{
		config.HelpKV{
			Key:         transitionWorkers,
			Type:        "number",

	"net/http"
	"net/http/httptrace"
	"sync/atomic"
	"time"
)

var globalStats = struct {
	errs uint64

	tcpDialErrs     uint64
	tcpDialCount    uint64
	tcpDialTotalDur uint64
}{}

// RPCStats holds information about the DHCP/TCP metrics and errors
type RPCStats struct {
	Errs uint64

	DialAvgDuration uint64
	DialErrs        uint64
}

// GetRPCStats returns RPC stats, include calls errors and dhcp/tcp metrics

	globalMinioPort        = GlobalMinioDefaultPort
	globalMinioConsolePort = "13333"

	// Holds the host that was passed using --address
	globalMinioHost = ""
	// Holds the host that was passed using --console-address
	globalMinioConsoleHost = ""

	// Holds the possible host endpoint.
	globalMinioEndpoint    = ""
	globalMinioEndpointURL *xnet.URL

// closer which only closes the associated *os.File when the ref count.
// has reached zero, i.e when all the readers have given up their locks.
type RLockedFile struct {
	*LockedFile
	mutex sync.Mutex
	refs  int // Holds read lock refs.
}

// IsClosed - Check if the rlocked file is already closed.
func (r *RLockedFile) IsClosed() bool {
	r.mutex.Lock()
	defer r.mutex.Unlock()
	return r.refs == 0
}

package api

import "github.com/minio/minio/internal/config"

var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help holds configuration keys and their default values for api subsystem.
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         apiRequestsMax,

}

// TargetStat is the stats of a single target.
type TargetStat struct {
	ID             TargetID
	ActiveRequests int64
	TotalRequests  int64
	FailedRequests int64
}

// TargetList - holds list of targets indexed by target ID.
type TargetList struct {
	sync.RWMutex
	targets map[TargetID]Target
}

// Add - adds unique target to target list.
func (list *TargetList) Add(targets ...Target) error {

//go:generate msgp -file $GOFILE -unexported
//msgp:ignore TierJournal tierDiskJournal walkfn

type tierDiskJournal struct {
	sync.RWMutex
	diskPath string
	file     *os.File // active journal file
}

// TierJournal holds an in-memory and an on-disk delete journal of tiered content.
type TierJournal struct {
	*tierDiskJournal // for processing legacy journal entries
	*tierMemJournal  // for processing new journal entries
}