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update: macaron cores,gzip,session (#10522)

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Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
6543 2020-02-28 10:51:18 +01:00 • committed by GitHub
parent 694f44660f
commit 8d2059a201
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GPG key ID: 4AEE18F83AFDEB23
47 changed files with 2154 additions and 349 deletions
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58
vendor/github.com/klauspost/compress/flate/level3.go generated vendored
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@ -1,5 +1,7 @@
package flate
import "fmt"
// fastEncL3
type fastEncL3 struct {
fastGen
@ -13,6 +15,10 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
minNonLiteralBlockSize = 1 + 1 + inputMargin
)
if debugDeflate && e.cur < 0 {
panic(fmt.Sprint("e.cur < 0: ", e.cur))
}
// Protect against e.cur wraparound.
for e.cur >= bufferReset {
if len(e.hist) == 0 {
@ -75,22 +81,26 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
}
candidates := e.table[nextHash]
now := load3232(src, nextS)
e.table[nextHash] = tableEntryPrev{Prev: candidates.Cur, Cur: tableEntry{offset: s + e.cur, val: cv}}
// Safe offset distance until s + 4...
minOffset := e.cur + s - (maxMatchOffset - 4)
e.table[nextHash] = tableEntryPrev{Prev: candidates.Cur, Cur: tableEntry{offset: s + e.cur}}
// Check both candidates
candidate = candidates.Cur
offset := s - (candidate.offset - e.cur)
if cv == candidate.val {
if offset > maxMatchOffset {
cv = now
// Previous will also be invalid, we have nothing.
continue
}
o2 := s - (candidates.Prev.offset - e.cur)
if cv != candidates.Prev.val || o2 > maxMatchOffset {
if candidate.offset < minOffset {
cv = now
// Previous will also be invalid, we have nothing.
continue
}
if cv == load3232(src, candidate.offset-e.cur) {
if candidates.Prev.offset < minOffset || cv != load3232(src, candidates.Prev.offset-e.cur) {
break
}
// Both match and are valid, pick longest.
offset := s - (candidate.offset - e.cur)
o2 := s - (candidates.Prev.offset - e.cur)
l1, l2 := matchLen(src[s+4:], src[s-offset+4:]), matchLen(src[s+4:], src[s-o2+4:])
if l2 > l1 {
candidate = candidates.Prev
@ -100,11 +110,8 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
// We only check if value mismatches.
// Offset will always be invalid in other cases.
candidate = candidates.Prev
if cv == candidate.val {
offset := s - (candidate.offset - e.cur)
if offset <= maxMatchOffset {
break
}
if candidate.offset > minOffset && cv == load3232(src, candidate.offset-e.cur) {
break
}
}
cv = now
@ -152,7 +159,7 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
nextHash := hash(cv)
e.table[nextHash] = tableEntryPrev{
Prev: e.table[nextHash].Cur,
Cur: tableEntry{offset: e.cur + t, val: cv},
Cur: tableEntry{offset: e.cur + t},
}
}
goto emitRemainder
@ -164,21 +171,21 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
prevHash := hash(uint32(x))
e.table[prevHash] = tableEntryPrev{
Prev: e.table[prevHash].Cur,
Cur: tableEntry{offset: e.cur + s - 3, val: uint32(x)},
Cur: tableEntry{offset: e.cur + s - 3},
}
x >>= 8
prevHash = hash(uint32(x))
e.table[prevHash] = tableEntryPrev{
Prev: e.table[prevHash].Cur,
Cur: tableEntry{offset: e.cur + s - 2, val: uint32(x)},
Cur: tableEntry{offset: e.cur + s - 2},
}
x >>= 8
prevHash = hash(uint32(x))
e.table[prevHash] = tableEntryPrev{
Prev: e.table[prevHash].Cur,
Cur: tableEntry{offset: e.cur + s - 1, val: uint32(x)},
Cur: tableEntry{offset: e.cur + s - 1},
}
x >>= 8
currHash := hash(uint32(x))
@ -186,21 +193,18 @@ func (e *fastEncL3) Encode(dst *tokens, src []byte) {
cv = uint32(x)
e.table[currHash] = tableEntryPrev{
Prev: candidates.Cur,
Cur: tableEntry{offset: s + e.cur, val: cv},
Cur: tableEntry{offset: s + e.cur},
}
// Check both candidates
candidate = candidates.Cur
if cv == candidate.val {
offset := s - (candidate.offset - e.cur)
if offset <= maxMatchOffset {
continue
}
} else {
minOffset := e.cur + s - (maxMatchOffset - 4)
if candidate.offset > minOffset && cv != load3232(src, candidate.offset-e.cur) {
// We only check if value mismatches.
// Offset will always be invalid in other cases.
candidate = candidates.Prev
if cv == candidate.val {
if candidate.offset > minOffset && cv == load3232(src, candidate.offset-e.cur) {
offset := s - (candidate.offset - e.cur)
if offset <= maxMatchOffset {
continue