"context"
	"database/sql"
	"encoding/json"
	"errors"
	"fmt"
	"net/url"
	"os"
	"path/filepath"
	"regexp"
	"strconv"
	"strings"
	"time"
	"unicode"

	_ "github.com/lib/pq" // Register postgres driver

	"github.com/minio/minio/internal/event"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/once"
	"github.com/minio/minio/internal/store"
	xnet "github.com/minio/pkg/v2/net"
)

	config.Lock()
	defer config.Unlock()

	var ok bool
	// Lookup in-memory drivercache
	d, ok = config.drivercache[tierName]
	if ok {
		return d, nil
	}

	// Initialize driver from tier config matching tierName
	t, ok := config.Tiers[tierName]
	if !ok {
		return nil, errTierNotFound
	}
	d, err = newWarmBackend(ctx, t, false)
	if err != nil {
		return nil, err
	}

	return
}

// EncodeMsg implements msgp.Encodable
func (z *LockArgs) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 5
	// write "UID"
	err = en.Append(0x85, 0xa3, 0x55, 0x49, 0x44)
	if err != nil {
		return
	}
	err = en.WriteString(z.UID)
	if err != nil {
		err = msgp.WrapError(err, "UID")
		return
	}
	// write "Resources"
	err = en.Append(0xa9, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73)

func (z *BatchJobExpire) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 6
	// write "APIVersion"
	err = en.Append(0x86, 0xaa, 0x41, 0x50, 0x49, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e)
	if err != nil {
		return
	}
	err = en.WriteString(z.APIVersion)
	if err != nil {
		err = msgp.WrapError(err, "APIVersion")
		return
	}
	// write "Bucket"
	err = en.Append(0xa6, 0x42, 0x75, 0x63, 0x6b, 0x65, 0x74)

}

// EncodeMsg implements msgp.Encodable
func (z ActiveWorkerStat) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 3
	// write "Curr"
	err = en.Append(0x83, 0xa4, 0x43, 0x75, 0x72, 0x72)
	if err != nil {
		return
	}
	err = en.WriteInt(z.Curr)
	if err != nil {
		err = msgp.WrapError(err, "Curr")
		return
	}
	// write "Avg"
	err = en.Append(0xa3, 0x41, 0x76, 0x67)
	if err != nil {
		return
	}

			Addr:  owner,
			Locks: locksHeld,
		})
	}
	var exp madmin.LockEntries
	for _, lri := range lris {
		lockType := func(lri lockRequesterInfo) string {
			if lri.Writer {
				return "WRITE"
			}
			return "READ"
		}
		exp = append(exp, madmin.LockEntry{
			Resource:   lri.Name,
			Type:       lockType(lri),
			ServerList: owners,
			Owner:      lri.Owner,

			}
			writers := make([]io.Writer, len(disks))
			for i, disk := range disks {
				if disk == nil {
					continue
				}
				writers[i] = newBitrotWriter(disk, "", "testbucket", "object2", erasure.ShardFileSize(int64(len(data[test.offset:]))), test.algorithm, erasure.ShardSize())
			}
			for j := range disks[:test.offDisks] {
				switch w := writers[j].(type) {
				case *wholeBitrotWriter:

	DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error)

	// WalkDir will walk a directory on disk and return a metacache stream on wr.
	WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error

	// Metadata operations
	DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) error

	QuoteCharacter       string `xml:"QuoteCharacter"`
	QuoteEscapeCharacter string `xml:"QuoteEscapeCharacter"`
	unmarshaled          bool
}

// IsEmpty - returns whether writer args is empty or not.
func (args *WriterArgs) IsEmpty() bool {
	return !args.unmarshaled
}

// UnmarshalXML - decodes XML data.
func (args *WriterArgs) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {

// DownloadProfilingData - download profiling data from all remote peers.
func (sys *NotificationSys) DownloadProfilingData(ctx context.Context, writer io.Writer) (profilingDataFound bool) {
	// Initialize a zip writer which will provide a zipped content
	// of profiling data of all nodes
	zipWriter := zip.NewWriter(writer)
	defer zipWriter.Close()

	for _, client := range sys.peerClients {
		if client == nil {
			continue
		}