tillOffset := erasure.ShardFileOffset(0, partSize, partSize)
			readers := make([]io.ReaderAt, len(latestDisks))
			prefer := make([]bool, len(latestDisks))
			checksumAlgo := erasureInfo.GetChecksumInfo(partNumber).Algorithm
			for i, disk := range latestDisks {
				if disk == OfflineDisk {
					continue
				}
				thisPartErrs := shuffleCheckParts(dataErrsByPart[partIndex], latestMeta.Erasure.Distribution)

	"strings"
	"sync"
	"time"
)

var zipinsecurepath = godebug.New("zipinsecurepath")

var (
	ErrFormat       = errors.New("zip: not a valid zip file")
	ErrAlgorithm    = errors.New("zip: unsupported compression algorithm")
	ErrChecksum     = errors.New("zip: checksum error")
	ErrInsecurePath = errors.New("zip: insecure file path")
)

// A Reader serves content from a ZIP archive.
type Reader struct {
	r             io.ReaderAt

		}
		// Will get index or nil if closed.
		gotIdx = <-indexCh
		return gotIdx
	}
}

// compressSelfTest performs a self-test to ensure that compression
// algorithms completes a roundtrip. If any algorithm
// produces an incorrect checksum it fails with a hard error.
//
// compressSelfTest tries to catch any issue in the compression implementation
// early instead of silently corrupting data.

   *
   * The Least Recently Used page replacement algorithm was chosen due to its simplicity, high hit
   * rate, and ability to be implemented with O(1) time complexity. The initial LRU implementation
   * operates per-segment rather than globally for increased implementation simplicity. We expect
   * the cache hit rate to be similar to that of a global LRU algorithm.
   */

  // Constants

  /**

   * page-replacement algorithm to determine which entries to evict when the capacity has been
   * exceeded.
   *
   * The page replacement algorithm's data structures are kept casually consistent with the map. The
   * ordering of writes to a segment is sequentially consistent. An update to the map and recording
   * of reads may not be immediately reflected on the algorithm's data structures. These structures

   * once after loading completes). Much internal cache management is performed at the segment
   * granularity. For example, access queues and write queues are kept per segment when they are
   * required by the selected eviction algorithm. As such, when writing unit tests it is not
   * uncommon to specify {@code concurrencyLevel(1)} in order to achieve more deterministic eviction
   * behavior.
   *

], len1) return v } // gcmHashKey represents the 16-byte hash key required by the GHASH algorithm. type gcmHashKey [16]byte type gcmPlatformData struct { hashKey gcmHashKey } func initGCM(g *GCM) { if !useGCM && !useGHASH { return } // Note that hashKey is also used in the KMA codepath to hash large nonces. aes.EncryptBlockInternal(&g.cipher, g.hashKey[:], g.hashKey[:]) } // ghashAsm uses the GHASH algorithm to hash data with the given key. The initial // hash value is given by hash which will be...

], len1) return v } // gcmHashKey represents the 16-byte hash key required by the GHASH algorithm. type gcmHashKey [16]byte type gcmPlatformData struct { hashKey gcmHashKey } func initGCM(g *GCM) { if !useGCM && !useGHASH { return } // Note that hashKey is also used in the KMA codepath to hash large nonces. aes.EncryptBlockInternal(&g.cipher, g.hashKey[:], g.hashKey[:]) } // ghashAsm uses the GHASH algorithm to hash data with the given key. The initial // hash value is given by hash which will be...

	// undefined.
	if !st.Mode().IsRegular() {
		return 0, errIsNotRegular
	}

	if verifier == nil {
		n, err = file.ReadAt(buffer, offset)
		return int64(n), err
	}

	h := verifier.algorithm.New()
	if _, err = io.Copy(h, io.LimitReader(file, offset)); err != nil {
		return 0, err
	}

	if n, err = io.ReadFull(file, buffer); err != nil {
		return int64(n), err
	}

					dstOpts.WantChecksum = nil
				}
			} else {
				// S3: All copied objects without checksums and specified destination checksum algorithms
				// automatically gain a CRC-64NVME checksum algorithm.
				dstOpts.WantServerSideChecksumType = hash.ChecksumCRC64NVME
				srcInfo.Reader.AddServerSideChecksumHasher(dstOpts.WantServerSideChecksumType)
				dstOpts.WantChecksum = nil
			}