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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2020-05-04 11:08:43 +0200
committerGitHub <noreply@github.com>2020-05-04 11:08:43 +0200
commit51d0be42046f691e81cddfe2712baa14cecbdfbe (patch)
tree31a4708b600b60a5a9c5529637721f1a5d88e195 /vendor/github.com/klauspost/compress/zstd
parent7b941462d42aa76b134462ff92a6823359d2cf76 (diff)
parent7d37f4bbfee8def704cf38ec74f91e3e0db61723 (diff)
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Merge pull request #6051 from rhatdan/containers.conf
Fixes for test/e2e/containers_conf_test.go
Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd')
-rw-r--r--vendor/github.com/klauspost/compress/zstd/blockdec.go20
-rw-r--r--vendor/github.com/klauspost/compress/zstd/decoder.go7
-rw-r--r--vendor/github.com/klauspost/compress/zstd/enc_better.go5
-rw-r--r--vendor/github.com/klauspost/compress/zstd/enc_dfast.go10
-rw-r--r--vendor/github.com/klauspost/compress/zstd/enc_fast.go7
-rw-r--r--vendor/github.com/klauspost/compress/zstd/enc_params.go3
-rw-r--r--vendor/github.com/klauspost/compress/zstd/encoder.go47
-rw-r--r--vendor/github.com/klauspost/compress/zstd/encoder_options.go32
-rw-r--r--vendor/github.com/klauspost/compress/zstd/framedec.go22
9 files changed, 94 insertions, 59 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/blockdec.go b/vendor/github.com/klauspost/compress/zstd/blockdec.go
index ed670bcc7..63062ffa6 100644
--- a/vendor/github.com/klauspost/compress/zstd/blockdec.go
+++ b/vendor/github.com/klauspost/compress/zstd/blockdec.go
@@ -75,21 +75,25 @@ type blockDec struct {
// Window size of the block.
WindowSize uint64
- Type blockType
- RLESize uint32
- // Is this the last block of a frame?
- Last bool
-
- // Use less memory
- lowMem bool
history chan *history
input chan struct{}
result chan decodeOutput
sequenceBuf []seq
- tmp [4]byte
err error
decWG sync.WaitGroup
+
+ // Block is RLE, this is the size.
+ RLESize uint32
+ tmp [4]byte
+
+ Type blockType
+
+ // Is this the last block of a frame?
+ Last bool
+
+ // Use less memory
+ lowMem bool
}
func (b *blockDec) String() string {
diff --git a/vendor/github.com/klauspost/compress/zstd/decoder.go b/vendor/github.com/klauspost/compress/zstd/decoder.go
index 86553c2c3..234025505 100644
--- a/vendor/github.com/klauspost/compress/zstd/decoder.go
+++ b/vendor/github.com/klauspost/compress/zstd/decoder.go
@@ -169,7 +169,12 @@ func (d *Decoder) Reset(r io.Reader) error {
println("*bytes.Buffer detected, doing sync decode, len:", bb.Len())
}
b := bb.Bytes()
- dst, err := d.DecodeAll(b, nil)
+ var dst []byte
+ if cap(d.current.b) > 0 {
+ dst = d.current.b
+ }
+
+ dst, err := d.DecodeAll(b, dst[:0])
if err == nil {
err = io.EOF
}
diff --git a/vendor/github.com/klauspost/compress/zstd/enc_better.go b/vendor/github.com/klauspost/compress/zstd/enc_better.go
index 4375e08b4..c120d9054 100644
--- a/vendor/github.com/klauspost/compress/zstd/enc_better.go
+++ b/vendor/github.com/klauspost/compress/zstd/enc_better.go
@@ -104,10 +104,7 @@ func (e *betterFastEncoder) Encode(blk *blockEnc, src []byte) {
sLimit := int32(len(src)) - inputMargin
// stepSize is the number of bytes to skip on every main loop iteration.
// It should be >= 1.
- stepSize := int32(e.o.targetLength)
- if stepSize == 0 {
- stepSize++
- }
+ const stepSize = 1
const kSearchStrength = 9
diff --git a/vendor/github.com/klauspost/compress/zstd/enc_dfast.go b/vendor/github.com/klauspost/compress/zstd/enc_dfast.go
index d640e6a9f..5ebead9dc 100644
--- a/vendor/github.com/klauspost/compress/zstd/enc_dfast.go
+++ b/vendor/github.com/klauspost/compress/zstd/enc_dfast.go
@@ -80,10 +80,7 @@ func (e *doubleFastEncoder) Encode(blk *blockEnc, src []byte) {
sLimit := int32(len(src)) - inputMargin
// stepSize is the number of bytes to skip on every main loop iteration.
// It should be >= 1.
- stepSize := int32(e.o.targetLength)
- if stepSize == 0 {
- stepSize++
- }
+ const stepSize = 1
const kSearchStrength = 8
@@ -401,10 +398,7 @@ func (e *doubleFastEncoder) EncodeNoHist(blk *blockEnc, src []byte) {
sLimit := int32(len(src)) - inputMargin
// stepSize is the number of bytes to skip on every main loop iteration.
// It should be >= 1.
- stepSize := int32(e.o.targetLength)
- if stepSize == 0 {
- stepSize++
- }
+ const stepSize = 1
const kSearchStrength = 8
diff --git a/vendor/github.com/klauspost/compress/zstd/enc_fast.go b/vendor/github.com/klauspost/compress/zstd/enc_fast.go
index 1387b8082..d1d3658e6 100644
--- a/vendor/github.com/klauspost/compress/zstd/enc_fast.go
+++ b/vendor/github.com/klauspost/compress/zstd/enc_fast.go
@@ -25,7 +25,6 @@ type tableEntry struct {
}
type fastBase struct {
- o encParams
// cur is the offset at the start of hist
cur int32
// maximum offset. Should be at least 2x block size.
@@ -117,11 +116,7 @@ func (e *fastEncoder) Encode(blk *blockEnc, src []byte) {
sLimit := int32(len(src)) - inputMargin
// stepSize is the number of bytes to skip on every main loop iteration.
// It should be >= 2.
- stepSize := int32(e.o.targetLength)
- if stepSize == 0 {
- stepSize++
- }
- stepSize++
+ const stepSize = 2
// TEMPLATE
const hashLog = tableBits
diff --git a/vendor/github.com/klauspost/compress/zstd/enc_params.go b/vendor/github.com/klauspost/compress/zstd/enc_params.go
index b6779ecb6..d874116f7 100644
--- a/vendor/github.com/klauspost/compress/zstd/enc_params.go
+++ b/vendor/github.com/klauspost/compress/zstd/enc_params.go
@@ -4,6 +4,8 @@
package zstd
+/*
+// encParams are not really used, just here for reference.
type encParams struct {
// largest match distance : larger == more compression, more memory needed during decompression
windowLog uint8
@@ -152,3 +154,4 @@ var defEncParams = [4][]encParams{
{14, 15, 15, 10, 3, 999, strategyBtultra2}, // level 22.
},
}
+*/
diff --git a/vendor/github.com/klauspost/compress/zstd/encoder.go b/vendor/github.com/klauspost/compress/zstd/encoder.go
index 67d45efb9..af4f00b73 100644
--- a/vendor/github.com/klauspost/compress/zstd/encoder.go
+++ b/vendor/github.com/klauspost/compress/zstd/encoder.go
@@ -39,17 +39,18 @@ type encoder interface {
}
type encoderState struct {
- w io.Writer
- filling []byte
- current []byte
- previous []byte
- encoder encoder
- writing *blockEnc
- err error
- writeErr error
- nWritten int64
- headerWritten bool
- eofWritten bool
+ w io.Writer
+ filling []byte
+ current []byte
+ previous []byte
+ encoder encoder
+ writing *blockEnc
+ err error
+ writeErr error
+ nWritten int64
+ headerWritten bool
+ eofWritten bool
+ fullFrameWritten bool
// This waitgroup indicates an encode is running.
wg sync.WaitGroup
@@ -114,6 +115,7 @@ func (e *Encoder) Reset(w io.Writer) {
s.encoder.Reset()
s.headerWritten = false
s.eofWritten = false
+ s.fullFrameWritten = false
s.w = w
s.err = nil
s.nWritten = 0
@@ -172,6 +174,22 @@ func (e *Encoder) nextBlock(final bool) error {
return fmt.Errorf("block > maxStoreBlockSize")
}
if !s.headerWritten {
+ // If we have a single block encode, do a sync compression.
+ if final && len(s.filling) > 0 {
+ s.current = e.EncodeAll(s.filling, s.current[:0])
+ var n2 int
+ n2, s.err = s.w.Write(s.current)
+ if s.err != nil {
+ return s.err
+ }
+ s.nWritten += int64(n2)
+ s.current = s.current[:0]
+ s.filling = s.filling[:0]
+ s.headerWritten = true
+ s.fullFrameWritten = true
+ return nil
+ }
+
var tmp [maxHeaderSize]byte
fh := frameHeader{
ContentSize: 0,
@@ -294,7 +312,9 @@ func (e *Encoder) ReadFrom(r io.Reader) (n int64, err error) {
src := e.state.filling
for {
n2, err := r.Read(src)
- _, _ = e.state.encoder.CRC().Write(src[:n2])
+ if e.o.crc {
+ _, _ = e.state.encoder.CRC().Write(src[:n2])
+ }
// src is now the unfilled part...
src = src[n2:]
n += int64(n2)
@@ -359,6 +379,9 @@ func (e *Encoder) Close() error {
if err != nil {
return err
}
+ if e.state.fullFrameWritten {
+ return s.err
+ }
s.wg.Wait()
s.wWg.Wait()
diff --git a/vendor/github.com/klauspost/compress/zstd/encoder_options.go b/vendor/github.com/klauspost/compress/zstd/encoder_options.go
index 0ff970dac..3fc03097a 100644
--- a/vendor/github.com/klauspost/compress/zstd/encoder_options.go
+++ b/vendor/github.com/klauspost/compress/zstd/encoder_options.go
@@ -12,15 +12,16 @@ type EOption func(*encoderOptions) error
// options retains accumulated state of multiple options.
type encoderOptions struct {
- concurrent int
- crc bool
- single *bool
- pad int
- blockSize int
- windowSize int
- level EncoderLevel
- fullZero bool
- noEntropy bool
+ concurrent int
+ level EncoderLevel
+ single *bool
+ pad int
+ blockSize int
+ windowSize int
+ crc bool
+ fullZero bool
+ noEntropy bool
+ customWindow bool
}
func (o *encoderOptions) setDefault() {
@@ -30,7 +31,7 @@ func (o *encoderOptions) setDefault() {
crc: true,
single: nil,
blockSize: 1 << 16,
- windowSize: 1 << 22,
+ windowSize: 8 << 20,
level: SpeedDefault,
}
}
@@ -85,6 +86,7 @@ func WithWindowSize(n int) EOption {
}
o.windowSize = n
+ o.customWindow = true
if o.blockSize > o.windowSize {
o.blockSize = o.windowSize
}
@@ -195,6 +197,16 @@ func WithEncoderLevel(l EncoderLevel) EOption {
return fmt.Errorf("unknown encoder level")
}
o.level = l
+ if !o.customWindow {
+ switch o.level {
+ case SpeedFastest:
+ o.windowSize = 4 << 20
+ case SpeedDefault:
+ o.windowSize = 8 << 20
+ case SpeedBetterCompression:
+ o.windowSize = 16 << 20
+ }
+ }
return nil
}
}
diff --git a/vendor/github.com/klauspost/compress/zstd/framedec.go b/vendor/github.com/klauspost/compress/zstd/framedec.go
index cda590b5f..e38f34a9b 100644
--- a/vendor/github.com/klauspost/compress/zstd/framedec.go
+++ b/vendor/github.com/klauspost/compress/zstd/framedec.go
@@ -16,16 +16,11 @@ import (
)
type frameDec struct {
- o decoderOptions
- crc hash.Hash64
- frameDone sync.WaitGroup
- offset int64
+ o decoderOptions
+ crc hash.Hash64
+ offset int64
- WindowSize uint64
- DictionaryID uint32
- FrameContentSize uint64
- HasCheckSum bool
- SingleSegment bool
+ WindowSize uint64
// maxWindowSize is the maximum windows size to support.
// should never be bigger than max-int.
@@ -42,9 +37,16 @@ type frameDec struct {
// Byte buffer that can be reused for small input blocks.
bBuf byteBuf
+ FrameContentSize uint64
+ frameDone sync.WaitGroup
+
+ DictionaryID uint32
+ HasCheckSum bool
+ SingleSegment bool
+
// asyncRunning indicates whether the async routine processes input on 'decoding'.
- asyncRunning bool
asyncRunningMu sync.Mutex
+ asyncRunning bool
}
const (