vendor: Update golang.org/cznic/...

vendor/github.com/cznic/zappy/decode_cgo.go

@@ -10,6 +10,10 @@
 
 package zappy
 
+import (
+	"github.com/cznic/internal/buffer"
+)
+
 /*
 
 #include <stdint.h>
@@ -109,7 +113,7 @@ func Decode(buf, src []byte) ([]byte, error) {
 	}
 
 	if len(buf) < dLen {
-		buf = make([]byte, dLen)
+		buf = *buffer.Get(dLen)
 	}
 
 	d := int(C.decode(C.int(s), C.int(len(src)), (*C.uint8_t)(&src[0]), C.int(len(buf)), (*C.uint8_t)(&buf[0])))

vendor/github.com/cznic/zappy/decode_nocgo.go

@@ -12,6 +12,8 @@ package zappy
 
 import (
 	"encoding/binary"
+
+	"github.com/cznic/internal/buffer"
 )
 
 func puregoDecode() bool { return true }
@@ -35,7 +37,7 @@ func Decode(buf, src []byte) ([]byte, error) {
 	}
 
 	if len(buf) < dLen {
-		buf = make([]byte, dLen)
+		buf = *buffer.Get(dLen)
 	}
 
 	var d, offset, length int

vendor/github.com/cznic/zappy/encode.go

@@ -33,5 +33,5 @@ func emitLiteral(dst, lit []byte) (n int) {
 // MaxEncodedLen returns the maximum length of a zappy block, given its
 // uncompressed length.
 func MaxEncodedLen(srcLen int) int {
-	return 10 + srcLen
+	return 10 + srcLen + (srcLen+1)/2
 }

vendor/github.com/cznic/zappy/encode_cgo.go

@@ -107,6 +107,8 @@ import (
 	"encoding/binary"
 	"fmt"
 	"math"
+
+	"github.com/cznic/internal/buffer"
 )
 
 func puregoEncode() bool { return false }
@@ -117,7 +119,7 @@ func puregoEncode() bool { return false }
 // It is valid to pass a nil buf.
 func Encode(buf, src []byte) ([]byte, error) {
 	if n := MaxEncodedLen(len(src)); len(buf) < n {
-		buf = make([]byte, n)
+		buf = *buffer.Get(n)
 	}
 
 	if len(src) > math.MaxInt32 {

vendor/github.com/cznic/zappy/encode_nocgo.go

@@ -14,6 +14,8 @@ import (
 	"encoding/binary"
 	"fmt"
 	"math"
+
+	"github.com/cznic/internal/buffer"
 )
 
 func puregoEncode() bool { return true }
@@ -24,7 +26,7 @@ func puregoEncode() bool { return true }
 // It is valid to pass a nil buf.
 func Encode(buf, src []byte) ([]byte, error) {
 	if n := MaxEncodedLen(len(src)); len(buf) < n {
-		buf = make([]byte, n)
+		buf = *buffer.Get(n)
 	}
 
 	if len(src) > math.MaxInt32 {

vendor/github.com/cznic/zappy/zappy.go

@@ -124,7 +124,6 @@ Old=Go snappy, new=zappy:
 
 The package builds with CGO_ENABLED=0 as well, but the performance is worse.
 
-
  $ CGO_ENABLED=0 go test -test.run=NONE -test.bench=. > old.benchcmp
  $ CGO_ENABLED=1 go test -test.run=NONE -test.bench=. > new.benchcmp
  $ benchcmp old.benchcmp new.benchcmp