// license that can be found in the LICENSE file.

package tar

import (
	"math"
	"strings"
	"testing"
	"time"
)

func TestFitsInBase256(t *testing.T) {
	vectors := []struct {
		in    int64
		width int
		ok    bool
	}{
		{+1, 8, true},
		{0, 8, true},
		{-1, 8, true},
		{1 << 56, 8, false},
		{(1 << 56) - 1, 8, true},
		{-1 << 56, 8, true},
		{(-1 << 56) - 1, 8, false},

			m.Set(name, metric.Value, labels...)
		}
	}
}

// SetHistogramValues - sets values for the given MetricName using the provided map of
// range to value.
func SetHistogramValues[V uint64 | int64 | float64](m MetricValues, name MetricName, values map[string]V, labels ...string) {
	for rng, val := range values {
		m.Set(name, float64(val), append(labels, rangeL, rng)...)
	}
}

//go:build (linux || darwin) && !appengine
// +build linux darwin
// +build !appengine

package cmd

import "syscall"

func direntInode(dirent *syscall.Dirent) uint64 {
	return dirent.Ino

// ShardFileSize - returns final erasure size from original size.
func (e ErasureInfo) ShardFileSize(totalLength int64) int64 {
	if totalLength == 0 {
		return 0
	}
	if totalLength == -1 {
		return -1
	}
	numShards := totalLength / e.BlockSize
	lastBlockSize := totalLength % e.BlockSize
	lastShardSize := ceilFrac(lastBlockSize, int64(e.DataBlocks))
	return numShards*e.ShardSize() + lastShardSize
}

type ObjectPartInfo struct {
	ETag       string            `json:"etag,omitempty" msg:"e"`
	Number     int               `json:"number" msg:"n"`
	Size       int64             `json:"size" msg:"s"`        // Size of the part on the disk.
	ActualSize int64             `json:"actualSize" msg:"as"` // Original size of the part without compression or encryption bytes.

// signed byte values.
// We compute and return both.
func (b *block) computeChecksum() (unsigned, signed int64) {
	for i, c := range b {
		if 148 <= i && i < 156 {
			c = ' ' // Treat the checksum field itself as all spaces.
		}
		unsigned += int64(c)
		signed += int64(int8(c))
	}
	return unsigned, signed
}

// reset clears the block with all zeros.
func (b *block) reset() {

var _healingMetric_index = [...]uint8{0, 6, 12, 31}

func (i healingMetric) String() string {
	if i >= healingMetric(len(_healingMetric_index)-1) {
		return "healingMetric(" + strconv.FormatInt(int64(i), 10) + ")"
	}
	return _healingMetric_name[_healingMetric_index[i]:_healingMetric_index[i+1]]

var _batchJobMetric_index = [...]uint8{0, 11, 22, 28}

func (i batchJobMetric) String() string {
	if i >= batchJobMetric(len(_batchJobMetric_index)-1) {
		return "batchJobMetric(" + strconv.FormatInt(int64(i), 10) + ")"
	}
	return _batchJobMetric_name[_batchJobMetric_index[i]:_batchJobMetric_index[i+1]]

	m.Set(scannerBucketScansFinished, float64(globalScannerMetrics.lifetime(scannerMetricScanBucketDrive)))
	m.Set(scannerBucketScansStarted, float64(globalScannerMetrics.lifetime(scannerMetricScanBucketDrive)+uint64(globalScannerMetrics.activeDrives())))
	m.Set(scannerDirectoriesScanned, float64(globalScannerMetrics.lifetime(scannerMetricScanFolder)))
	m.Set(scannerObjectsScanned, float64(globalScannerMetrics.lifetime(scannerMetricScanObject)))

		if text == nil {
			t.Errorf("%s: instruction outside TEXT", p)
		}
		size := int64(len(text.P)) - p.Pc
		if p.Link != nil {
			size = p.Link.Pc - p.Pc
		} else if p.Isize != 0 {
			size = int64(p.Isize)
		}
		var code []byte
		if p.Pc < int64(len(text.P)) {
			code = text.P[p.Pc:]
			if size < int64(len(code)) {
				code = code[:size]
			}
		}
		codeHex := fmt.Sprintf("%x", code)