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authorDaniel J Walsh <dwalsh@redhat.com>2020-09-10 09:31:28 -0400
committerDaniel J Walsh <dwalsh@redhat.com>2020-09-10 09:34:31 -0400
commit98620c56d6ad0d896308a4e5858c5d1913476eaf (patch)
treedf24f9bb53b8b455cf79cb57594987c7c0054b16 /vendor/github.com/klauspost/compress/zstd/dict.go
parent08b602043ec07601b9be23c449c7773067683d90 (diff)
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vendor containers/storage v1.23.5
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/dict.go')
-rw-r--r--vendor/github.com/klauspost/compress/zstd/dict.go26
1 files changed, 22 insertions, 4 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/dict.go b/vendor/github.com/klauspost/compress/zstd/dict.go
index 8eb6f6ba3..fa25a18d8 100644
--- a/vendor/github.com/klauspost/compress/zstd/dict.go
+++ b/vendor/github.com/klauspost/compress/zstd/dict.go
@@ -13,14 +13,31 @@ import (
type dict struct {
id uint32
- litDec *huff0.Scratch
+ litEnc *huff0.Scratch
llDec, ofDec, mlDec sequenceDec
- offsets [3]int
- content []byte
+ //llEnc, ofEnc, mlEnc []*fseEncoder
+ offsets [3]int
+ content []byte
}
var dictMagic = [4]byte{0x37, 0xa4, 0x30, 0xec}
+// ID returns the dictionary id or 0 if d is nil.
+func (d *dict) ID() uint32 {
+ if d == nil {
+ return 0
+ }
+ return d.id
+}
+
+// DictContentSize returns the dictionary content size or 0 if d is nil.
+func (d *dict) DictContentSize() int {
+ if d == nil {
+ return 0
+ }
+ return len(d.content)
+}
+
// Load a dictionary as described in
// https://github.com/facebook/zstd/blob/master/doc/zstd_compression_format.md#dictionary-format
func loadDict(b []byte) (*dict, error) {
@@ -43,10 +60,11 @@ func loadDict(b []byte) (*dict, error) {
// Read literal table
var err error
- d.litDec, b, err = huff0.ReadTable(b[8:], nil)
+ d.litEnc, b, err = huff0.ReadTable(b[8:], nil)
if err != nil {
return nil, err
}
+ d.litEnc.Reuse = huff0.ReusePolicyMust
br := byteReader{
b: b,