[VOL-5486] Fix deprecated versions
Change-Id: If0b888d6c2f33b2f415c8b03b08dc994bb3df3f4
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/klauspost/compress/flate/token.go b/vendor/github.com/klauspost/compress/flate/token.go
new file mode 100644
index 0000000..d818790
--- /dev/null
+++ b/vendor/github.com/klauspost/compress/flate/token.go
@@ -0,0 +1,379 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package flate
+
+import (
+ "bytes"
+ "encoding/binary"
+ "fmt"
+ "io"
+ "math"
+)
+
+const (
+ // bits 0-16 xoffset = offset - MIN_OFFSET_SIZE, or literal - 16 bits
+ // bits 16-22 offsetcode - 5 bits
+ // bits 22-30 xlength = length - MIN_MATCH_LENGTH - 8 bits
+ // bits 30-32 type 0 = literal 1=EOF 2=Match 3=Unused - 2 bits
+ lengthShift = 22
+ offsetMask = 1<<lengthShift - 1
+ typeMask = 3 << 30
+ literalType = 0 << 30
+ matchType = 1 << 30
+ matchOffsetOnlyMask = 0xffff
+)
+
+// The length code for length X (MIN_MATCH_LENGTH <= X <= MAX_MATCH_LENGTH)
+// is lengthCodes[length - MIN_MATCH_LENGTH]
+var lengthCodes = [256]uint8{
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 8,
+ 9, 9, 10, 10, 11, 11, 12, 12, 12, 12,
+ 13, 13, 13, 13, 14, 14, 14, 14, 15, 15,
+ 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
+ 17, 17, 17, 17, 17, 17, 17, 17, 18, 18,
+ 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
+ 19, 19, 19, 19, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+ 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
+ 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
+ 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 28,
+}
+
+// lengthCodes1 is length codes, but starting at 1.
+var lengthCodes1 = [256]uint8{
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 9,
+ 10, 10, 11, 11, 12, 12, 13, 13, 13, 13,
+ 14, 14, 14, 14, 15, 15, 15, 15, 16, 16,
+ 16, 16, 17, 17, 17, 17, 17, 17, 17, 17,
+ 18, 18, 18, 18, 18, 18, 18, 18, 19, 19,
+ 19, 19, 19, 19, 19, 19, 20, 20, 20, 20,
+ 20, 20, 20, 20, 21, 21, 21, 21, 21, 21,
+ 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+ 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
+ 22, 22, 22, 22, 22, 22, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 29,
+}
+
+var offsetCodes = [256]uint32{
+ 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7,
+ 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+}
+
+// offsetCodes14 are offsetCodes, but with 14 added.
+var offsetCodes14 = [256]uint32{
+ 14, 15, 16, 17, 18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21,
+ 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+}
+
+type token uint32
+
+type tokens struct {
+ extraHist [32]uint16 // codes 256->maxnumlit
+ offHist [32]uint16 // offset codes
+ litHist [256]uint16 // codes 0->255
+ nFilled int
+ n uint16 // Must be able to contain maxStoreBlockSize
+ tokens [maxStoreBlockSize + 1]token
+}
+
+func (t *tokens) Reset() {
+ if t.n == 0 {
+ return
+ }
+ t.n = 0
+ t.nFilled = 0
+ for i := range t.litHist[:] {
+ t.litHist[i] = 0
+ }
+ for i := range t.extraHist[:] {
+ t.extraHist[i] = 0
+ }
+ for i := range t.offHist[:] {
+ t.offHist[i] = 0
+ }
+}
+
+func (t *tokens) Fill() {
+ if t.n == 0 {
+ return
+ }
+ for i, v := range t.litHist[:] {
+ if v == 0 {
+ t.litHist[i] = 1
+ t.nFilled++
+ }
+ }
+ for i, v := range t.extraHist[:literalCount-256] {
+ if v == 0 {
+ t.nFilled++
+ t.extraHist[i] = 1
+ }
+ }
+ for i, v := range t.offHist[:offsetCodeCount] {
+ if v == 0 {
+ t.offHist[i] = 1
+ }
+ }
+}
+
+func indexTokens(in []token) tokens {
+ var t tokens
+ t.indexTokens(in)
+ return t
+}
+
+func (t *tokens) indexTokens(in []token) {
+ t.Reset()
+ for _, tok := range in {
+ if tok < matchType {
+ t.AddLiteral(tok.literal())
+ continue
+ }
+ t.AddMatch(uint32(tok.length()), tok.offset()&matchOffsetOnlyMask)
+ }
+}
+
+// emitLiteral writes a literal chunk and returns the number of bytes written.
+func emitLiteral(dst *tokens, lit []byte) {
+ for _, v := range lit {
+ dst.tokens[dst.n] = token(v)
+ dst.litHist[v]++
+ dst.n++
+ }
+}
+
+func (t *tokens) AddLiteral(lit byte) {
+ t.tokens[t.n] = token(lit)
+ t.litHist[lit]++
+ t.n++
+}
+
+// from https://stackoverflow.com/a/28730362
+func mFastLog2(val float32) float32 {
+ ux := int32(math.Float32bits(val))
+ log2 := (float32)(((ux >> 23) & 255) - 128)
+ ux &= -0x7f800001
+ ux += 127 << 23
+ uval := math.Float32frombits(uint32(ux))
+ log2 += ((-0.34484843)*uval+2.02466578)*uval - 0.67487759
+ return log2
+}
+
+// EstimatedBits will return an minimum size estimated by an *optimal*
+// compression of the block.
+// The size of the block
+func (t *tokens) EstimatedBits() int {
+ shannon := float32(0)
+ bits := int(0)
+ nMatches := 0
+ total := int(t.n) + t.nFilled
+ if total > 0 {
+ invTotal := 1.0 / float32(total)
+ for _, v := range t.litHist[:] {
+ if v > 0 {
+ n := float32(v)
+ shannon += atLeastOne(-mFastLog2(n*invTotal)) * n
+ }
+ }
+ // Just add 15 for EOB
+ shannon += 15
+ for i, v := range t.extraHist[1 : literalCount-256] {
+ if v > 0 {
+ n := float32(v)
+ shannon += atLeastOne(-mFastLog2(n*invTotal)) * n
+ bits += int(lengthExtraBits[i&31]) * int(v)
+ nMatches += int(v)
+ }
+ }
+ }
+ if nMatches > 0 {
+ invTotal := 1.0 / float32(nMatches)
+ for i, v := range t.offHist[:offsetCodeCount] {
+ if v > 0 {
+ n := float32(v)
+ shannon += atLeastOne(-mFastLog2(n*invTotal)) * n
+ bits += int(offsetExtraBits[i&31]) * int(v)
+ }
+ }
+ }
+ return int(shannon) + bits
+}
+
+// AddMatch adds a match to the tokens.
+// This function is very sensitive to inlining and right on the border.
+func (t *tokens) AddMatch(xlength uint32, xoffset uint32) {
+ if debugDeflate {
+ if xlength >= maxMatchLength+baseMatchLength {
+ panic(fmt.Errorf("invalid length: %v", xlength))
+ }
+ if xoffset >= maxMatchOffset+baseMatchOffset {
+ panic(fmt.Errorf("invalid offset: %v", xoffset))
+ }
+ }
+ oCode := offsetCode(xoffset)
+ xoffset |= oCode << 16
+
+ t.extraHist[lengthCodes1[uint8(xlength)]]++
+ t.offHist[oCode&31]++
+ t.tokens[t.n] = token(matchType | xlength<<lengthShift | xoffset)
+ t.n++
+}
+
+// AddMatchLong adds a match to the tokens, potentially longer than max match length.
+// Length should NOT have the base subtracted, only offset should.
+func (t *tokens) AddMatchLong(xlength int32, xoffset uint32) {
+ if debugDeflate {
+ if xoffset >= maxMatchOffset+baseMatchOffset {
+ panic(fmt.Errorf("invalid offset: %v", xoffset))
+ }
+ }
+ oc := offsetCode(xoffset)
+ xoffset |= oc << 16
+ for xlength > 0 {
+ xl := xlength
+ if xl > 258 {
+ // We need to have at least baseMatchLength left over for next loop.
+ if xl > 258+baseMatchLength {
+ xl = 258
+ } else {
+ xl = 258 - baseMatchLength
+ }
+ }
+ xlength -= xl
+ xl -= baseMatchLength
+ t.extraHist[lengthCodes1[uint8(xl)]]++
+ t.offHist[oc&31]++
+ t.tokens[t.n] = token(matchType | uint32(xl)<<lengthShift | xoffset)
+ t.n++
+ }
+}
+
+func (t *tokens) AddEOB() {
+ t.tokens[t.n] = token(endBlockMarker)
+ t.extraHist[0]++
+ t.n++
+}
+
+func (t *tokens) Slice() []token {
+ return t.tokens[:t.n]
+}
+
+// VarInt returns the tokens as varint encoded bytes.
+func (t *tokens) VarInt() []byte {
+ var b = make([]byte, binary.MaxVarintLen32*int(t.n))
+ var off int
+ for _, v := range t.tokens[:t.n] {
+ off += binary.PutUvarint(b[off:], uint64(v))
+ }
+ return b[:off]
+}
+
+// FromVarInt restores t to the varint encoded tokens provided.
+// Any data in t is removed.
+func (t *tokens) FromVarInt(b []byte) error {
+ var buf = bytes.NewReader(b)
+ var toks []token
+ for {
+ r, err := binary.ReadUvarint(buf)
+ if err == io.EOF {
+ break
+ }
+ if err != nil {
+ return err
+ }
+ toks = append(toks, token(r))
+ }
+ t.indexTokens(toks)
+ return nil
+}
+
+// Returns the type of a token
+func (t token) typ() uint32 { return uint32(t) & typeMask }
+
+// Returns the literal of a literal token
+func (t token) literal() uint8 { return uint8(t) }
+
+// Returns the extra offset of a match token
+func (t token) offset() uint32 { return uint32(t) & offsetMask }
+
+func (t token) length() uint8 { return uint8(t >> lengthShift) }
+
+// Convert length to code.
+func lengthCode(len uint8) uint8 { return lengthCodes[len] }
+
+// Returns the offset code corresponding to a specific offset
+func offsetCode(off uint32) uint32 {
+ if false {
+ if off < uint32(len(offsetCodes)) {
+ return offsetCodes[off&255]
+ } else if off>>7 < uint32(len(offsetCodes)) {
+ return offsetCodes[(off>>7)&255] + 14
+ } else {
+ return offsetCodes[(off>>14)&255] + 28
+ }
+ }
+ if off < uint32(len(offsetCodes)) {
+ return offsetCodes[uint8(off)]
+ }
+ return offsetCodes14[uint8(off>>7)]
+}