"context"
	"fmt"
	"runtime"
	"strconv"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/pkg/v3/env"
)

// healTask represents what to heal along with options
//
//	path: '/' =>  Heal disk formats along with metadata
//	path: 'bucket/' or '/bucket/' => Heal bucket
//	path: 'bucket/object' => Heal object
type healTask struct {
	bucket    string
	object    string
	versionID string

type BackendType int

// Enum for different backend types.
const (
	Unknown = BackendType(madmin.Unknown)
	// Filesystem backend.
	BackendFS = BackendType(madmin.FS)
	// Multi disk BackendErasure (single, distributed) backend.
	BackendErasure = BackendType(madmin.Erasure)
	// Add your own backend.
)

// StorageInfo - represents total capacity of underlying storage.

	values := make(url.Values)
	values.Set(peerRESTMetricsTypes, strconv.FormatUint(uint64(t), 10))
	for disk := range opts.disks {
		values.Add(peerRESTDisk, disk)
	}
	for host := range opts.hosts {
		values.Add(peerRESTHost, host)
	}
	values.Set(peerRESTJobID, opts.jobID)
	values.Set(peerRESTDepID, opts.depID)

	if ok {
		return b.updateCacheEntry(update)
	}

	// We should have either a trashed bucket or this
	return metacache{}, errVolumeNotFound
}

// getBucket will get a bucket metacache or load it from disk if needed.
func (m *metacacheManager) getBucket(ctx context.Context, bucket string) *bucketMetacache {
	m.init.Do(m.initManager)

	// Return a transient bucket for invalid or system buckets.
	m.mu.RLock()

	updatedRules := make(map[string]lifecycle.Rule, len(bucketLifecycle.Rules))
	for _, rule := range bucketLifecycle.Rules {
		updatedRules[rule.ID] = rule
	}

	// Get list of rules for the bucket from disk
	meta, err := globalBucketMetadataSys.GetConfigFromDisk(ctx, bucket)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	expiryRuleRemoved := false

// error returned by disks which are to be initialized are waiting for the
// first server to initialize them in distributed set to initialize them.
var errNotFirstDisk = errors.New("Not first drive")

// error returned by first disk waiting to initialize other servers.
var errFirstDiskWait = errors.New("Waiting on other drives")

// error returned for a negative actual size.
var errInvalidDecompressedSize = errors.New("Invalid Decompressed Size")

* fix: retry detach azure disk issue ([#78700](https://github.com/kubernetes/kubernetes/pull/78700), [@andyzhangx](https://github.com/andyzhangx))
    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation

    * Fixes volume detach from shutdown nodes.
* remove retry operation on attach/detach  azure disk ([#70568](https://github.com/kubernetes/kubernetes/pull/70568), [@andyzhangx](https://github.com/andyzhangx))
* fix azure disk attachment error on Linux ([#70002](https://github.com/kubernetes/kubernetes/pull/70002), [@andyzhangx](https://github.com/andyzhangx))

	testServer.cancel()
	testServer.Server.Close()
	testServer.Obj.Shutdown(context.Background())
	os.RemoveAll(testServer.Root)
	for _, ep := range testServer.Disks {
		for _, disk := range ep.Endpoints {
			os.RemoveAll(disk.Path)
		}
	}
}

// Truncate request to simulate unexpected EOF for a request signed using streaming signature v4.
func truncateChunkByHalfSigv4(req *http.Request) (*http.Request, error) {

* You don't have to use `File()` in the default value of the parameter.
* It uses a "spooled" file:
    * A file stored in memory up to a maximum size limit, and after passing this limit it will be stored in disk.
* This means that it will work well for large files like images, videos, large binaries, etc. without consuming all the memory.
* You can get metadata from the uploaded file.