VOL-1691 Fix openolt adapter getting stuck while registartion with core
Change-Id: Ide8131f325bc15f1b909e14d7af6ee9bcd6b3b5b
diff --git a/vendor/github.com/pierrec/lz4/.gitignore b/vendor/github.com/pierrec/lz4/.gitignore
index e48bab3..5e98735 100644
--- a/vendor/github.com/pierrec/lz4/.gitignore
+++ b/vendor/github.com/pierrec/lz4/.gitignore
@@ -30,4 +30,5 @@
# End of https://www.gitignore.io/api/macos
-lz4c/lz4c
+cmd/*/*exe
+.idea
\ No newline at end of file
diff --git a/vendor/github.com/pierrec/lz4/.travis.yml b/vendor/github.com/pierrec/lz4/.travis.yml
index 658910d..9028ee8 100644
--- a/vendor/github.com/pierrec/lz4/.travis.yml
+++ b/vendor/github.com/pierrec/lz4/.travis.yml
@@ -8,6 +8,7 @@
- 1.9.x
- 1.10.x
- 1.11.x
+ - 1.12.x
- master
matrix:
diff --git a/vendor/github.com/pierrec/lz4/README.md b/vendor/github.com/pierrec/lz4/README.md
index 50a10ee..00899fb 100644
--- a/vendor/github.com/pierrec/lz4/README.md
+++ b/vendor/github.com/pierrec/lz4/README.md
@@ -1,24 +1,105 @@
-[](https://godoc.org/github.com/pierrec/lz4)
+# lz4 : LZ4 compression in pure Go
-# lz4
-LZ4 compression and decompression in pure Go.
+[](https://godoc.org/github.com/pierrec/lz4)
+[](https://travis-ci.org/pierrec/lz4)
+[](https://goreportcard.com/report/github.com/pierrec/lz4)
+[](https://github.com/pierrec/lz4/tags)
-## Usage
+## Overview
-```go
-import "github.com/pierrec/lz4"
+This package provides a streaming interface to [LZ4 data streams](http://fastcompression.blogspot.fr/2013/04/lz4-streaming-format-final.html) as well as low level compress and uncompress functions for LZ4 data blocks.
+The implementation is based on the reference C [one](https://github.com/lz4/lz4).
+
+## Install
+
+Assuming you have the go toolchain installed:
+
+```
+go get github.com/pierrec/lz4
```
-## Description
-Package lz4 implements reading and writing lz4 compressed data (a frame),
-as specified in http://fastcompression.blogspot.fr/2013/04/lz4-streaming-format-final.html.
+There is a command line interface tool to compress and decompress LZ4 files.
-This package is **compatible with the LZ4 frame format** although the block level compression
-and decompression functions are exposed and are fully compatible with the lz4 block format
-definition, they are low level and should not be used directly.
+```
+go install github.com/pierrec/lz4/cmd/lz4c
+```
-For a complete description of an lz4 compressed block, see:
-http://fastcompression.blogspot.fr/2011/05/lz4-explained.html
+Usage
-See https://github.com/Cyan4973/lz4 for the reference C implementation.
+```
+Usage of lz4c:
+ -version
+ print the program version
+Subcommands:
+Compress the given files or from stdin to stdout.
+compress [arguments] [<file name> ...]
+ -bc
+ enable block checksum
+ -l int
+ compression level (0=fastest)
+ -sc
+ disable stream checksum
+ -size string
+ block max size [64K,256K,1M,4M] (default "4M")
+
+Uncompress the given files or from stdin to stdout.
+uncompress [arguments] [<file name> ...]
+
+```
+
+
+## Example
+
+```
+// Compress and uncompress an input string.
+s := "hello world"
+r := strings.NewReader(s)
+
+// The pipe will uncompress the data from the writer.
+pr, pw := io.Pipe()
+zw := lz4.NewWriter(pw)
+zr := lz4.NewReader(pr)
+
+go func() {
+ // Compress the input string.
+ _, _ = io.Copy(zw, r)
+ _ = zw.Close() // Make sure the writer is closed
+ _ = pw.Close() // Terminate the pipe
+}()
+
+_, _ = io.Copy(os.Stdout, zr)
+
+// Output:
+// hello world
+```
+
+## Contributing
+
+Contributions are very welcome for bug fixing, performance improvements...!
+
+- Open an issue with a proper description
+- Send a pull request with appropriate test case(s)
+
+## Contributors
+
+Thanks to all contributors so far:
+
+- [@klauspost](https://github.com/klauspost)
+- [@heidawei](https://github.com/heidawei)
+- [@x4m](https://github.com/x4m)
+- [@Zariel](https://github.com/Zariel)
+- [@edwingeng](https://github.com/edwingeng)
+- [@danielmoy-google](https://github.com/danielmoy-google)
+- [@honda-tatsuya](https://github.com/honda-tatsuya)
+- [@h8liu](https://github.com/h8liu)
+- [@sbinet](https://github.com/sbinet)
+- [@fingon](https://github.com/fingon)
+- [@emfree](https://github.com/emfree)
+- [@lhemala](https://github.com/lhemala)
+- [@connor4312](https://github.com/connor4312)
+- [@oov](https://github.com/oov)
+- [@arya](https://github.com/arya)
+- [@ikkeps](https://github.com/ikkeps)
+
+Special thanks to [@Zariel](https://github.com/Zariel) for his asm implementation of the decoder
diff --git a/vendor/github.com/pierrec/lz4/block.go b/vendor/github.com/pierrec/lz4/block.go
index d96e0e7..90831a4 100644
--- a/vendor/github.com/pierrec/lz4/block.go
+++ b/vendor/github.com/pierrec/lz4/block.go
@@ -2,15 +2,7 @@
import (
"encoding/binary"
- "errors"
-)
-
-var (
- // ErrInvalidSourceShortBuffer is returned by UncompressBlock or CompressBLock when a compressed
- // block is corrupted or the destination buffer is not large enough for the uncompressed data.
- ErrInvalidSourceShortBuffer = errors.New("lz4: invalid source or destination buffer too short")
- // ErrInvalid is returned when reading an invalid LZ4 archive.
- ErrInvalid = errors.New("lz4: bad magic number")
+ "math/bits"
)
// blockHash hashes 4 bytes into a value < winSize.
@@ -30,17 +22,14 @@
// The destination buffer must be sized appropriately.
//
// An error is returned if the source data is invalid or the destination buffer is too small.
-func UncompressBlock(src, dst []byte) (di int, err error) {
- sn := len(src)
- if sn == 0 {
+func UncompressBlock(src, dst []byte) (int, error) {
+ if len(src) == 0 {
return 0, nil
}
-
- di = decodeBlock(dst, src)
- if di < 0 {
- return 0, ErrInvalidSourceShortBuffer
+ if di := decodeBlock(dst, src); di >= 0 {
+ return di, nil
}
- return di, nil
+ return 0, ErrInvalidSourceShortBuffer
}
// CompressBlock compresses the source buffer into the destination one.
@@ -51,11 +40,12 @@
//
// An error is returned if the destination buffer is too small.
func CompressBlock(src, dst []byte, hashTable []int) (di int, err error) {
- defer func() {
- if recover() != nil {
- err = ErrInvalidSourceShortBuffer
- }
- }()
+ defer recoverBlock(&err)
+
+ // adaptSkipLog sets how quickly the compressor begins skipping blocks when data is incompressible.
+ // This significantly speeds up incompressible data and usually has very small impact on compresssion.
+ // bytes to skip = 1 + (bytes since last match >> adaptSkipLog)
+ const adaptSkipLog = 7
sn, dn := len(src)-mfLimit, len(dst)
if sn <= 0 || dn == 0 {
@@ -64,10 +54,8 @@
var si int
// Fast scan strategy: the hash table only stores the last 4 bytes sequences.
- // const accInit = 1 << skipStrength
anchor := si // Position of the current literals.
- // acc := accInit // Variable step: improves performance on non-compressible data.
for si < sn {
// Hash the next 4 bytes (sequence)...
@@ -77,15 +65,13 @@
ref := hashTable[h]
hashTable[h] = si
if ref >= sn { // Invalid reference (dirty hashtable).
- si++
+ si += 1 + (si-anchor)>>adaptSkipLog
continue
}
offset := si - ref
if offset <= 0 || offset >= winSize || // Out of window.
match != binary.LittleEndian.Uint32(src[ref:]) { // Hash collision on different matches.
- // si += acc >> skipStrength
- // acc++
- si++
+ si += 1 + (si-anchor)>>adaptSkipLog
continue
}
@@ -97,12 +83,15 @@
si += minMatch
mLen := si // Match length has minMatch already.
// Find the longest match, first looking by batches of 8 bytes.
- for si < sn && binary.LittleEndian.Uint64(src[si:]) == binary.LittleEndian.Uint64(src[si-offset:]) {
- si += 8
- }
- // Then byte by byte.
- for si < sn && src[si] == src[si-offset] {
- si++
+ for si < sn {
+ x := binary.LittleEndian.Uint64(src[si:]) ^ binary.LittleEndian.Uint64(src[si-offset:])
+ if x == 0 {
+ si += 8
+ } else {
+ // Stop is first non-zero byte.
+ si += bits.TrailingZeros64(x) >> 3
+ break
+ }
}
mLen = si - mLen
@@ -185,11 +174,12 @@
//
// An error is returned if the destination buffer is too small.
func CompressBlockHC(src, dst []byte, depth int) (di int, err error) {
- defer func() {
- if recover() != nil {
- err = ErrInvalidSourceShortBuffer
- }
- }()
+ defer recoverBlock(&err)
+
+ // adaptSkipLog sets how quickly the compressor begins skipping blocks when data is incompressible.
+ // This significantly speeds up incompressible data and usually has very small impact on compresssion.
+ // bytes to skip = 1 + (bytes since last match >> adaptSkipLog)
+ const adaptSkipLog = 7
sn, dn := len(src)-mfLimit, len(dst)
if sn <= 0 || dn == 0 {
@@ -198,7 +188,7 @@
var si int
// hashTable: stores the last position found for a given hash
- // chaingTable: stores previous positions for a given hash
+ // chainTable: stores previous positions for a given hash
var hashTable, chainTable [winSize]int
if depth <= 0 {
@@ -222,11 +212,15 @@
}
ml := 0
// Compare the current position with a previous with the same hash.
- for ml < sn-si && binary.LittleEndian.Uint64(src[next+ml:]) == binary.LittleEndian.Uint64(src[si+ml:]) {
- ml += 8
- }
- for ml < sn-si && src[next+ml] == src[si+ml] {
- ml++
+ for ml < sn-si {
+ x := binary.LittleEndian.Uint64(src[next+ml:]) ^ binary.LittleEndian.Uint64(src[si+ml:])
+ if x == 0 {
+ ml += 8
+ } else {
+ // Stop is first non-zero byte.
+ ml += bits.TrailingZeros64(x) >> 3
+ break
+ }
}
if ml < minMatch || ml <= mLen {
// Match too small (<minMath) or smaller than the current match.
@@ -243,7 +237,7 @@
// No match found.
if mLen == 0 {
- si++
+ si += 1 + (si-anchor)>>adaptSkipLog
continue
}
diff --git a/vendor/github.com/pierrec/lz4/decode_other.go b/vendor/github.com/pierrec/lz4/decode_other.go
index b83a19a..002519f 100644
--- a/vendor/github.com/pierrec/lz4/decode_other.go
+++ b/vendor/github.com/pierrec/lz4/decode_other.go
@@ -3,11 +3,10 @@
package lz4
func decodeBlock(dst, src []byte) (ret int) {
+ const hasError = -2
defer func() {
- // It is now faster to let the runtime panic and recover on out of bound slice access
- // than checking indices as we go along.
if recover() != nil {
- ret = -2
+ ret = hasError
}
}()
@@ -61,7 +60,7 @@
offset := int(src[si]) | int(src[si+1])<<8
if offset == 0 {
- return -2
+ return hasError
}
si += 2
@@ -90,6 +89,4 @@
}
di += copy(dst[di:di+mLen], expanded[:mLen])
}
-
- return di
}
diff --git a/vendor/github.com/pierrec/lz4/errors.go b/vendor/github.com/pierrec/lz4/errors.go
new file mode 100644
index 0000000..71a5a38
--- /dev/null
+++ b/vendor/github.com/pierrec/lz4/errors.go
@@ -0,0 +1,19 @@
+package lz4
+
+import "errors"
+
+var (
+ // ErrInvalidSourceShortBuffer is returned by UncompressBlock or CompressBLock when a compressed
+ // block is corrupted or the destination buffer is not large enough for the uncompressed data.
+ ErrInvalidSourceShortBuffer = errors.New("lz4: invalid source or destination buffer too short")
+ // ErrInvalid is returned when reading an invalid LZ4 archive.
+ ErrInvalid = errors.New("lz4: bad magic number")
+ // ErrBlockDependency is returned when attempting to decompress an archive created with block dependency.
+ ErrBlockDependency = errors.New("lz4: block dependency not supported")
+)
+
+func recoverBlock(e *error) {
+ if recover() != nil && *e == nil {
+ *e = ErrInvalidSourceShortBuffer
+ }
+}
diff --git a/vendor/github.com/pierrec/lz4/go.mod b/vendor/github.com/pierrec/lz4/go.mod
index f9f570a..96090c6 100644
--- a/vendor/github.com/pierrec/lz4/go.mod
+++ b/vendor/github.com/pierrec/lz4/go.mod
@@ -1,3 +1,12 @@
module github.com/pierrec/lz4
-require github.com/pkg/profile v1.2.1
+require (
+ code.cloudfoundry.org/bytefmt v0.0.0-20180906201452-2aa6f33b730c
+ github.com/frankban/quicktest v1.4.0
+ github.com/onsi/ginkgo v1.8.0 // indirect
+ github.com/onsi/gomega v1.5.0 // indirect
+ github.com/pierrec/cmdflag v0.0.2
+ github.com/schollz/progressbar/v2 v2.12.1
+ golang.org/x/net v0.0.0-20190311183353-d8887717615a // indirect
+ golang.org/x/sync v0.0.0-20190423024810-112230192c58 // indirect
+)
diff --git a/vendor/github.com/pierrec/lz4/go.sum b/vendor/github.com/pierrec/lz4/go.sum
index 6ca7598..4f1dab3 100644
--- a/vendor/github.com/pierrec/lz4/go.sum
+++ b/vendor/github.com/pierrec/lz4/go.sum
@@ -1,2 +1,57 @@
-github.com/pkg/profile v1.2.1 h1:F++O52m40owAmADcojzM+9gyjmMOY/T4oYJkgFDH8RE=
-github.com/pkg/profile v1.2.1/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
+code.cloudfoundry.org/bytefmt v0.0.0-20180906201452-2aa6f33b730c h1:VzwteSWGbW9mxXTEkH+kpnao5jbgLynw3hq742juQh8=
+code.cloudfoundry.org/bytefmt v0.0.0-20180906201452-2aa6f33b730c/go.mod h1:wN/zk7mhREp/oviagqUXY3EwuHhWyOvAdsn5Y4CzOrc=
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+github.com/frankban/quicktest v1.4.0 h1:rCSCih1FnSWJEel/eub9wclBSqpF2F/PuvxUWGWnbO8=
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+gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/vendor/github.com/pierrec/lz4/internal/xxh32/xxh32zero.go b/vendor/github.com/pierrec/lz4/internal/xxh32/xxh32zero.go
index 850a6fd..7a76a6b 100644
--- a/vendor/github.com/pierrec/lz4/internal/xxh32/xxh32zero.go
+++ b/vendor/github.com/pierrec/lz4/internal/xxh32/xxh32zero.go
@@ -7,14 +7,15 @@
)
const (
- prime32_1 uint32 = 2654435761
- prime32_2 uint32 = 2246822519
- prime32_3 uint32 = 3266489917
- prime32_4 uint32 = 668265263
- prime32_5 uint32 = 374761393
+ prime1 uint32 = 2654435761
+ prime2 uint32 = 2246822519
+ prime3 uint32 = 3266489917
+ prime4 uint32 = 668265263
+ prime5 uint32 = 374761393
- prime32_1plus2 uint32 = 606290984
- prime32_minus1 uint32 = 1640531535
+ primeMask = 0xFFFFFFFF
+ prime1plus2 = uint32((uint64(prime1) + uint64(prime2)) & primeMask) // 606290984
+ prime1minus = uint32((-int64(prime1)) & primeMask) // 1640531535
)
// XXHZero represents an xxhash32 object with seed 0.
@@ -37,10 +38,10 @@
// Reset resets the Hash to its initial state.
func (xxh *XXHZero) Reset() {
- xxh.v1 = prime32_1plus2
- xxh.v2 = prime32_2
+ xxh.v1 = prime1plus2
+ xxh.v2 = prime2
xxh.v3 = 0
- xxh.v4 = prime32_minus1
+ xxh.v4 = prime1minus
xxh.totalLen = 0
xxh.bufused = 0
}
@@ -83,20 +84,20 @@
// fast rotl(13)
buf := xxh.buf[:16] // BCE hint.
- v1 = rol13(v1+binary.LittleEndian.Uint32(buf[:])*prime32_2) * prime32_1
- v2 = rol13(v2+binary.LittleEndian.Uint32(buf[4:])*prime32_2) * prime32_1
- v3 = rol13(v3+binary.LittleEndian.Uint32(buf[8:])*prime32_2) * prime32_1
- v4 = rol13(v4+binary.LittleEndian.Uint32(buf[12:])*prime32_2) * prime32_1
+ v1 = rol13(v1+binary.LittleEndian.Uint32(buf[:])*prime2) * prime1
+ v2 = rol13(v2+binary.LittleEndian.Uint32(buf[4:])*prime2) * prime1
+ v3 = rol13(v3+binary.LittleEndian.Uint32(buf[8:])*prime2) * prime1
+ v4 = rol13(v4+binary.LittleEndian.Uint32(buf[12:])*prime2) * prime1
p = r
xxh.bufused = 0
}
for n := n - 16; p <= n; p += 16 {
sub := input[p:][:16] //BCE hint for compiler
- v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime32_2) * prime32_1
- v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime32_2) * prime32_1
- v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime32_2) * prime32_1
- v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime32_2) * prime32_1
+ v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime2) * prime1
+ v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime2) * prime1
+ v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime2) * prime1
+ v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime2) * prime1
}
xxh.v1, xxh.v2, xxh.v3, xxh.v4 = v1, v2, v3, v4
@@ -112,25 +113,25 @@
if h32 >= 16 {
h32 += rol1(xxh.v1) + rol7(xxh.v2) + rol12(xxh.v3) + rol18(xxh.v4)
} else {
- h32 += prime32_5
+ h32 += prime5
}
p := 0
n := xxh.bufused
buf := xxh.buf
for n := n - 4; p <= n; p += 4 {
- h32 += binary.LittleEndian.Uint32(buf[p:p+4]) * prime32_3
- h32 = rol17(h32) * prime32_4
+ h32 += binary.LittleEndian.Uint32(buf[p:p+4]) * prime3
+ h32 = rol17(h32) * prime4
}
for ; p < n; p++ {
- h32 += uint32(buf[p]) * prime32_5
- h32 = rol11(h32) * prime32_1
+ h32 += uint32(buf[p]) * prime5
+ h32 = rol11(h32) * prime1
}
h32 ^= h32 >> 15
- h32 *= prime32_2
+ h32 *= prime2
h32 ^= h32 >> 13
- h32 *= prime32_3
+ h32 *= prime3
h32 ^= h32 >> 16
return h32
@@ -142,19 +143,19 @@
h32 := uint32(n)
if n < 16 {
- h32 += prime32_5
+ h32 += prime5
} else {
- v1 := prime32_1plus2
- v2 := prime32_2
+ v1 := prime1plus2
+ v2 := prime2
v3 := uint32(0)
- v4 := prime32_minus1
+ v4 := prime1minus
p := 0
for n := n - 16; p <= n; p += 16 {
sub := input[p:][:16] //BCE hint for compiler
- v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime32_2) * prime32_1
- v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime32_2) * prime32_1
- v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime32_2) * prime32_1
- v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime32_2) * prime32_1
+ v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime2) * prime1
+ v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime2) * prime1
+ v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime2) * prime1
+ v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime2) * prime1
}
input = input[p:]
n -= p
@@ -163,19 +164,19 @@
p := 0
for n := n - 4; p <= n; p += 4 {
- h32 += binary.LittleEndian.Uint32(input[p:p+4]) * prime32_3
- h32 = rol17(h32) * prime32_4
+ h32 += binary.LittleEndian.Uint32(input[p:p+4]) * prime3
+ h32 = rol17(h32) * prime4
}
for p < n {
- h32 += uint32(input[p]) * prime32_5
- h32 = rol11(h32) * prime32_1
+ h32 += uint32(input[p]) * prime5
+ h32 = rol11(h32) * prime1
p++
}
h32 ^= h32 >> 15
- h32 *= prime32_2
+ h32 *= prime2
h32 ^= h32 >> 13
- h32 *= prime32_3
+ h32 *= prime3
h32 ^= h32 >> 16
return h32
@@ -183,12 +184,12 @@
// Uint32Zero hashes x with seed 0.
func Uint32Zero(x uint32) uint32 {
- h := prime32_5 + 4 + x*prime32_3
- h = rol17(h) * prime32_4
+ h := prime5 + 4 + x*prime3
+ h = rol17(h) * prime4
h ^= h >> 15
- h *= prime32_2
+ h *= prime2
h ^= h >> 13
- h *= prime32_3
+ h *= prime3
h ^= h >> 16
return h
}
diff --git a/vendor/github.com/pierrec/lz4/lz4.go b/vendor/github.com/pierrec/lz4/lz4.go
index 3580275..8c26412 100644
--- a/vendor/github.com/pierrec/lz4/lz4.go
+++ b/vendor/github.com/pierrec/lz4/lz4.go
@@ -31,26 +31,24 @@
// Its value influences the compression speed and memory usage, the lower the faster,
// but at the expense of the compression ratio.
// 16 seems to be the best compromise.
- hashLog = 16
- hashTableSize = 1 << hashLog
- hashShift = uint((minMatch * 8) - hashLog)
+ hashLog = 16
+ hashShift = uint((minMatch * 8) - hashLog)
- mfLimit = 8 + minMatch // The last match cannot start within the last 12 bytes.
- skipStrength = 6 // variable step for fast scan
+ mfLimit = 8 + minMatch // The last match cannot start within the last 12 bytes.
)
// map the block max size id with its value in bytes: 64Kb, 256Kb, 1Mb and 4Mb.
-var (
- bsMapID = map[byte]int{4: 64 << 10, 5: 256 << 10, 6: 1 << 20, 7: 4 << 20}
- bsMapValue = make(map[int]byte, len(bsMapID))
+const (
+ blockSize64K = 64 << 10
+ blockSize256K = 256 << 10
+ blockSize1M = 1 << 20
+ blockSize4M = 4 << 20
)
-// Reversed.
-func init() {
- for i, v := range bsMapID {
- bsMapValue[v] = i
- }
-}
+var (
+ bsMapID = map[byte]int{4: blockSize64K, 5: blockSize256K, 6: blockSize1M, 7: blockSize4M}
+ bsMapValue = map[int]byte{blockSize64K: 4, blockSize256K: 5, blockSize1M: 6, blockSize4M: 7}
+)
// Header describes the various flags that can be set on a Writer or obtained from a Reader.
// The default values match those of the LZ4 frame format definition
diff --git a/vendor/github.com/pierrec/lz4/reader.go b/vendor/github.com/pierrec/lz4/reader.go
index 81efdbf..90e8efe 100644
--- a/vendor/github.com/pierrec/lz4/reader.go
+++ b/vendor/github.com/pierrec/lz4/reader.go
@@ -14,6 +14,9 @@
// The Header may change between Read() calls in case of concatenated frames.
type Reader struct {
Header
+ // Handler called when a block has been successfully read.
+ // It provides the number of bytes read.
+ OnBlockDone func(size int)
buf [8]byte // Scrap buffer.
pos int64 // Current position in src.
@@ -76,7 +79,7 @@
return fmt.Errorf("lz4: invalid version: got %d; expected %d", v, Version)
}
if b>>5&1 == 0 {
- return fmt.Errorf("lz4: block dependency not supported")
+ return ErrBlockDependency
}
z.BlockChecksum = b>>4&1 > 0
frameSize := b>>3&1 > 0
@@ -101,7 +104,7 @@
z.data = z.zdata[:cap(z.zdata)][bSize:]
z.idx = len(z.data)
- z.checksum.Write(buf[0:2])
+ _, _ = z.checksum.Write(buf[0:2])
if frameSize {
buf := buf[:8]
@@ -110,7 +113,7 @@
}
z.Size = binary.LittleEndian.Uint64(buf)
z.pos += 8
- z.checksum.Write(buf)
+ _, _ = z.checksum.Write(buf)
}
// Header checksum.
@@ -211,6 +214,9 @@
return 0, err
}
z.pos += int64(bLen)
+ if z.OnBlockDone != nil {
+ z.OnBlockDone(int(bLen))
+ }
if z.BlockChecksum {
checksum, err := z.readUint32()
@@ -255,10 +261,13 @@
return 0, err
}
z.data = z.data[:n]
+ if z.OnBlockDone != nil {
+ z.OnBlockDone(n)
+ }
}
if !z.NoChecksum {
- z.checksum.Write(z.data)
+ _, _ = z.checksum.Write(z.data)
if debugFlag {
debug("current frame checksum %x", z.checksum.Sum32())
}
diff --git a/vendor/github.com/pierrec/lz4/writer.go b/vendor/github.com/pierrec/lz4/writer.go
index 0120438..804a68c 100644
--- a/vendor/github.com/pierrec/lz4/writer.go
+++ b/vendor/github.com/pierrec/lz4/writer.go
@@ -11,6 +11,9 @@
// Writer implements the LZ4 frame encoder.
type Writer struct {
Header
+ // Handler called when a block has been successfully written out.
+ // It provides the number of bytes written.
+ OnBlockDone func(size int)
buf [19]byte // magic number(4) + header(flags(2)+[Size(8)+DictID(4)]+checksum(1)) does not exceed 19 bytes
dst io.Writer // Destination.
@@ -46,8 +49,8 @@
if n := 2 * bSize; cap(z.zdata) < n {
z.zdata = make([]byte, n, n)
}
- z.zdata = z.zdata[:bSize]
- z.data = z.zdata[:cap(z.zdata)][bSize:]
+ z.data = z.zdata[:bSize]
+ z.zdata = z.zdata[:cap(z.zdata)][bSize:]
z.idx = 0
// Size is optional.
@@ -182,24 +185,26 @@
if err := z.writeUint32(bLen); err != nil {
return err
}
- if _, err := z.dst.Write(zdata); err != nil {
+ written, err := z.dst.Write(zdata)
+ if err != nil {
return err
}
+ if h := z.OnBlockDone; h != nil {
+ h(written)
+ }
- if z.BlockChecksum {
- checksum := xxh32.ChecksumZero(zdata)
+ if !z.BlockChecksum {
if debugFlag {
- debug("block checksum %x", checksum)
+ debug("current frame checksum %x", z.checksum.Sum32())
}
- if err := z.writeUint32(checksum); err != nil {
- return err
- }
+ return nil
}
+ checksum := xxh32.ChecksumZero(zdata)
if debugFlag {
- debug("current frame checksum %x", z.checksum.Sum32())
+ debug("block checksum %x", checksum)
+ defer func() { debug("current frame checksum %x", z.checksum.Sum32()) }()
}
-
- return nil
+ return z.writeUint32(checksum)
}
// Flush flushes any pending compressed data to the underlying writer.
@@ -213,7 +218,11 @@
return nil
}
- return z.compressBlock(z.data[:z.idx])
+ if err := z.compressBlock(z.data[:z.idx]); err != nil {
+ return err
+ }
+ z.idx = 0
+ return nil
}
// Close closes the Writer, flushing any unwritten data to the underlying io.Writer, but does not close the underlying io.Writer.
@@ -223,7 +232,6 @@
return err
}
}
-
if err := z.Flush(); err != nil {
return err
}
@@ -234,16 +242,14 @@
if err := z.writeUint32(0); err != nil {
return err
}
- if !z.NoChecksum {
- checksum := z.checksum.Sum32()
- if debugFlag {
- debug("stream checksum %x", checksum)
- }
- if err := z.writeUint32(checksum); err != nil {
- return err
- }
+ if z.NoChecksum {
+ return nil
}
- return nil
+ checksum := z.checksum.Sum32()
+ if debugFlag {
+ debug("stream checksum %x", checksum)
+ }
+ return z.writeUint32(checksum)
}
// Reset clears the state of the Writer z such that it is equivalent to its