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authordependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>2021-01-11 10:23:37 +0000
committerDaniel J Walsh <dwalsh@redhat.com>2021-01-11 08:50:59 -0500
commit63ecd1215ac815dc38c41f70d50e0de34d3854b9 (patch)
tree21056bd4dcde6d9fb3c51db3275fccd009bee241 /vendor/github.com/klauspost/compress
parent41613bdb96953c9cea8a8fd46da211bd42660944 (diff)
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Bump github.com/containers/storage from 1.24.4 to 1.24.5
Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.24.4 to 1.24.5. - [Release notes](https://github.com/containers/storage/releases) - [Changelog](https://github.com/containers/storage/blob/master/docs/containers-storage-changes.md) - [Commits](https://github.com/containers/storage/compare/v1.24.4...v1.24.5) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'vendor/github.com/klauspost/compress')
-rw-r--r--vendor/github.com/klauspost/compress/zstd/decoder.go20
-rw-r--r--vendor/github.com/klauspost/compress/zstd/seqdec.go15
-rw-r--r--vendor/github.com/klauspost/compress/zstd/zstd.go4
3 files changed, 30 insertions, 9 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/decoder.go b/vendor/github.com/klauspost/compress/zstd/decoder.go
index cdda0de58..62fd37324 100644
--- a/vendor/github.com/klauspost/compress/zstd/decoder.go
+++ b/vendor/github.com/klauspost/compress/zstd/decoder.go
@@ -85,6 +85,10 @@ func NewReader(r io.Reader, opts ...DOption) (*Decoder, error) {
d.current.output = make(chan decodeOutput, d.o.concurrent)
d.current.flushed = true
+ if r == nil {
+ d.current.err = ErrDecoderNilInput
+ }
+
// Transfer option dicts.
d.dicts = make(map[uint32]dict, len(d.o.dicts))
for _, dc := range d.o.dicts {
@@ -111,7 +115,7 @@ func NewReader(r io.Reader, opts ...DOption) (*Decoder, error) {
// When the stream is done, io.EOF will be returned.
func (d *Decoder) Read(p []byte) (int, error) {
if d.stream == nil {
- return 0, errors.New("no input has been initialized")
+ return 0, ErrDecoderNilInput
}
var n int
for {
@@ -152,12 +156,20 @@ func (d *Decoder) Read(p []byte) (int, error) {
// Reset will reset the decoder the supplied stream after the current has finished processing.
// Note that this functionality cannot be used after Close has been called.
+// Reset can be called with a nil reader to release references to the previous reader.
+// After being called with a nil reader, no other operations than Reset or DecodeAll or Close
+// should be used.
func (d *Decoder) Reset(r io.Reader) error {
if d.current.err == ErrDecoderClosed {
return d.current.err
}
+
+ d.drainOutput()
+
if r == nil {
- return errors.New("nil Reader sent as input")
+ d.current.err = ErrDecoderNilInput
+ d.current.flushed = true
+ return nil
}
if d.stream == nil {
@@ -166,8 +178,6 @@ func (d *Decoder) Reset(r io.Reader) error {
go d.startStreamDecoder(d.stream)
}
- d.drainOutput()
-
// If bytes buffer and < 1MB, do sync decoding anyway.
if bb, ok := r.(*bytes.Buffer); ok && bb.Len() < 1<<20 {
if debug {
@@ -249,7 +259,7 @@ func (d *Decoder) drainOutput() {
// Any error encountered during the write is also returned.
func (d *Decoder) WriteTo(w io.Writer) (int64, error) {
if d.stream == nil {
- return 0, errors.New("no input has been initialized")
+ return 0, ErrDecoderNilInput
}
var n int64
for {
diff --git a/vendor/github.com/klauspost/compress/zstd/seqdec.go b/vendor/github.com/klauspost/compress/zstd/seqdec.go
index b5c8ef133..1dd39e63b 100644
--- a/vendor/github.com/klauspost/compress/zstd/seqdec.go
+++ b/vendor/github.com/klauspost/compress/zstd/seqdec.go
@@ -181,11 +181,18 @@ func (s *sequenceDecs) decode(seqs int, br *bitReader, hist []byte) error {
return fmt.Errorf("output (%d) bigger than max block size", size)
}
if size > cap(s.out) {
- // Not enough size, will be extremely rarely triggered,
+ // Not enough size, which can happen under high volume block streaming conditions
// but could be if destination slice is too small for sync operations.
- // We add maxBlockSize to the capacity.
- s.out = append(s.out, make([]byte, maxBlockSize)...)
- s.out = s.out[:len(s.out)-maxBlockSize]
+ // over-allocating here can create a large amount of GC pressure so we try to keep
+ // it as contained as possible
+ used := len(s.out) - startSize
+ addBytes := 256 + ll + ml + used>>2
+ // Clamp to max block size.
+ if used+addBytes > maxBlockSize {
+ addBytes = maxBlockSize - used
+ }
+ s.out = append(s.out, make([]byte, addBytes)...)
+ s.out = s.out[:len(s.out)-addBytes]
}
if ml > maxMatchLen {
return fmt.Errorf("match len (%d) bigger than max allowed length", ml)
diff --git a/vendor/github.com/klauspost/compress/zstd/zstd.go b/vendor/github.com/klauspost/compress/zstd/zstd.go
index 0807719c8..0c761dd62 100644
--- a/vendor/github.com/klauspost/compress/zstd/zstd.go
+++ b/vendor/github.com/klauspost/compress/zstd/zstd.go
@@ -73,6 +73,10 @@ var (
// ErrDecoderClosed will be returned if the Decoder was used after
// Close has been called.
ErrDecoderClosed = errors.New("decoder used after Close")
+
+ // ErrDecoderNilInput is returned when a nil Reader was provided
+ // and an operation other than Reset/DecodeAll/Close was attempted.
+ ErrDecoderNilInput = errors.New("nil input provided as reader")
)
func println(a ...interface{}) {