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Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/internal')
8 files changed, 0 insertions, 820 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/LICENSE.txt b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/LICENSE.txt deleted file mode 100644 index 24b53065f..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/LICENSE.txt +++ /dev/null @@ -1,22 +0,0 @@ -Copyright (c) 2016 Caleb Spare - -MIT License - -Permission is hereby granted, free of charge, to any person obtaining -a copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be -included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE -LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/README.md b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/README.md deleted file mode 100644 index 777290d44..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/README.md +++ /dev/null @@ -1,71 +0,0 @@ -# xxhash - -VENDORED: Go to [github.com/cespare/xxhash](https://github.com/cespare/xxhash) for original package. - -xxhash is a Go implementation of the 64-bit [xxHash] algorithm, XXH64. This is a -high-quality hashing algorithm that is much faster than anything in the Go -standard library. - -This package provides a straightforward API: - -``` -func Sum64(b []byte) uint64 -func Sum64String(s string) uint64 -type Digest struct{ ... } - func New() *Digest -``` - -The `Digest` type implements hash.Hash64. Its key methods are: - -``` -func (*Digest) Write([]byte) (int, error) -func (*Digest) WriteString(string) (int, error) -func (*Digest) Sum64() uint64 -``` - -The package is written with optimized pure Go and also contains even faster -assembly implementations for amd64 and arm64. If desired, the `purego` build tag -opts into using the Go code even on those architectures. - -[xxHash]: http://cyan4973.github.io/xxHash/ - -## Compatibility - -This package is in a module and the latest code is in version 2 of the module. -You need a version of Go with at least "minimal module compatibility" to use -github.com/cespare/xxhash/v2: - -* 1.9.7+ for Go 1.9 -* 1.10.3+ for Go 1.10 -* Go 1.11 or later - -I recommend using the latest release of Go. - -## Benchmarks - -Here are some quick benchmarks comparing the pure-Go and assembly -implementations of Sum64. - -| input size | purego | asm | -| ---------- | --------- | --------- | -| 4 B | 1.3 GB/s | 1.2 GB/s | -| 16 B | 2.9 GB/s | 3.5 GB/s | -| 100 B | 6.9 GB/s | 8.1 GB/s | -| 4 KB | 11.7 GB/s | 16.7 GB/s | -| 10 MB | 12.0 GB/s | 17.3 GB/s | - -These numbers were generated on Ubuntu 20.04 with an Intel Xeon Platinum 8252C -CPU using the following commands under Go 1.19.2: - -``` -benchstat <(go test -tags purego -benchtime 500ms -count 15 -bench 'Sum64$') -benchstat <(go test -benchtime 500ms -count 15 -bench 'Sum64$') -``` - -## Projects using this package - -- [InfluxDB](https://github.com/influxdata/influxdb) -- [Prometheus](https://github.com/prometheus/prometheus) -- [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics) -- [FreeCache](https://github.com/coocood/freecache) -- [FastCache](https://github.com/VictoriaMetrics/fastcache) diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash.go b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash.go deleted file mode 100644 index fc40c8200..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash.go +++ /dev/null @@ -1,230 +0,0 @@ -// Package xxhash implements the 64-bit variant of xxHash (XXH64) as described -// at http://cyan4973.github.io/xxHash/. -// THIS IS VENDORED: Go to github.com/cespare/xxhash for original package. - -package xxhash - -import ( - "encoding/binary" - "errors" - "math/bits" -) - -const ( - prime1 uint64 = 11400714785074694791 - prime2 uint64 = 14029467366897019727 - prime3 uint64 = 1609587929392839161 - prime4 uint64 = 9650029242287828579 - prime5 uint64 = 2870177450012600261 -) - -// Store the primes in an array as well. -// -// The consts are used when possible in Go code to avoid MOVs but we need a -// contiguous array of the assembly code. -var primes = [...]uint64{prime1, prime2, prime3, prime4, prime5} - -// Digest implements hash.Hash64. -type Digest struct { - v1 uint64 - v2 uint64 - v3 uint64 - v4 uint64 - total uint64 - mem [32]byte - n int // how much of mem is used -} - -// New creates a new Digest that computes the 64-bit xxHash algorithm. -func New() *Digest { - var d Digest - d.Reset() - return &d -} - -// Reset clears the Digest's state so that it can be reused. -func (d *Digest) Reset() { - d.v1 = primes[0] + prime2 - d.v2 = prime2 - d.v3 = 0 - d.v4 = -primes[0] - d.total = 0 - d.n = 0 -} - -// Size always returns 8 bytes. -func (d *Digest) Size() int { return 8 } - -// BlockSize always returns 32 bytes. -func (d *Digest) BlockSize() int { return 32 } - -// Write adds more data to d. It always returns len(b), nil. -func (d *Digest) Write(b []byte) (n int, err error) { - n = len(b) - d.total += uint64(n) - - memleft := d.mem[d.n&(len(d.mem)-1):] - - if d.n+n < 32 { - // This new data doesn't even fill the current block. - copy(memleft, b) - d.n += n - return - } - - if d.n > 0 { - // Finish off the partial block. - c := copy(memleft, b) - d.v1 = round(d.v1, u64(d.mem[0:8])) - d.v2 = round(d.v2, u64(d.mem[8:16])) - d.v3 = round(d.v3, u64(d.mem[16:24])) - d.v4 = round(d.v4, u64(d.mem[24:32])) - b = b[c:] - d.n = 0 - } - - if len(b) >= 32 { - // One or more full blocks left. - nw := writeBlocks(d, b) - b = b[nw:] - } - - // Store any remaining partial block. - copy(d.mem[:], b) - d.n = len(b) - - return -} - -// Sum appends the current hash to b and returns the resulting slice. -func (d *Digest) Sum(b []byte) []byte { - s := d.Sum64() - return append( - b, - byte(s>>56), - byte(s>>48), - byte(s>>40), - byte(s>>32), - byte(s>>24), - byte(s>>16), - byte(s>>8), - byte(s), - ) -} - -// Sum64 returns the current hash. -func (d *Digest) Sum64() uint64 { - var h uint64 - - if d.total >= 32 { - v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4 - h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4) - h = mergeRound(h, v1) - h = mergeRound(h, v2) - h = mergeRound(h, v3) - h = mergeRound(h, v4) - } else { - h = d.v3 + prime5 - } - - h += d.total - - b := d.mem[:d.n&(len(d.mem)-1)] - for ; len(b) >= 8; b = b[8:] { - k1 := round(0, u64(b[:8])) - h ^= k1 - h = rol27(h)*prime1 + prime4 - } - if len(b) >= 4 { - h ^= uint64(u32(b[:4])) * prime1 - h = rol23(h)*prime2 + prime3 - b = b[4:] - } - for ; len(b) > 0; b = b[1:] { - h ^= uint64(b[0]) * prime5 - h = rol11(h) * prime1 - } - - h ^= h >> 33 - h *= prime2 - h ^= h >> 29 - h *= prime3 - h ^= h >> 32 - - return h -} - -const ( - magic = "xxh\x06" - marshaledSize = len(magic) + 8*5 + 32 -) - -// MarshalBinary implements the encoding.BinaryMarshaler interface. -func (d *Digest) MarshalBinary() ([]byte, error) { - b := make([]byte, 0, marshaledSize) - b = append(b, magic...) - b = appendUint64(b, d.v1) - b = appendUint64(b, d.v2) - b = appendUint64(b, d.v3) - b = appendUint64(b, d.v4) - b = appendUint64(b, d.total) - b = append(b, d.mem[:d.n]...) - b = b[:len(b)+len(d.mem)-d.n] - return b, nil -} - -// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface. -func (d *Digest) UnmarshalBinary(b []byte) error { - if len(b) < len(magic) || string(b[:len(magic)]) != magic { - return errors.New("xxhash: invalid hash state identifier") - } - if len(b) != marshaledSize { - return errors.New("xxhash: invalid hash state size") - } - b = b[len(magic):] - b, d.v1 = consumeUint64(b) - b, d.v2 = consumeUint64(b) - b, d.v3 = consumeUint64(b) - b, d.v4 = consumeUint64(b) - b, d.total = consumeUint64(b) - copy(d.mem[:], b) - d.n = int(d.total % uint64(len(d.mem))) - return nil -} - -func appendUint64(b []byte, x uint64) []byte { - var a [8]byte - binary.LittleEndian.PutUint64(a[:], x) - return append(b, a[:]...) -} - -func consumeUint64(b []byte) ([]byte, uint64) { - x := u64(b) - return b[8:], x -} - -func u64(b []byte) uint64 { return binary.LittleEndian.Uint64(b) } -func u32(b []byte) uint32 { return binary.LittleEndian.Uint32(b) } - -func round(acc, input uint64) uint64 { - acc += input * prime2 - acc = rol31(acc) - acc *= prime1 - return acc -} - -func mergeRound(acc, val uint64) uint64 { - val = round(0, val) - acc ^= val - acc = acc*prime1 + prime4 - return acc -} - -func rol1(x uint64) uint64 { return bits.RotateLeft64(x, 1) } -func rol7(x uint64) uint64 { return bits.RotateLeft64(x, 7) } -func rol11(x uint64) uint64 { return bits.RotateLeft64(x, 11) } -func rol12(x uint64) uint64 { return bits.RotateLeft64(x, 12) } -func rol18(x uint64) uint64 { return bits.RotateLeft64(x, 18) } -func rol23(x uint64) uint64 { return bits.RotateLeft64(x, 23) } -func rol27(x uint64) uint64 { return bits.RotateLeft64(x, 27) } -func rol31(x uint64) uint64 { return bits.RotateLeft64(x, 31) } diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_amd64.s b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_amd64.s deleted file mode 100644 index ddb63aa91..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_amd64.s +++ /dev/null @@ -1,210 +0,0 @@ -//go:build !appengine && gc && !purego && !noasm -// +build !appengine -// +build gc -// +build !purego -// +build !noasm - -#include "textflag.h" - -// Registers: -#define h AX -#define d AX -#define p SI // pointer to advance through b -#define n DX -#define end BX // loop end -#define v1 R8 -#define v2 R9 -#define v3 R10 -#define v4 R11 -#define x R12 -#define prime1 R13 -#define prime2 R14 -#define prime4 DI - -#define round(acc, x) \ - IMULQ prime2, x \ - ADDQ x, acc \ - ROLQ $31, acc \ - IMULQ prime1, acc - -// round0 performs the operation x = round(0, x). -#define round0(x) \ - IMULQ prime2, x \ - ROLQ $31, x \ - IMULQ prime1, x - -// mergeRound applies a merge round on the two registers acc and x. -// It assumes that prime1, prime2, and prime4 have been loaded. -#define mergeRound(acc, x) \ - round0(x) \ - XORQ x, acc \ - IMULQ prime1, acc \ - ADDQ prime4, acc - -// blockLoop processes as many 32-byte blocks as possible, -// updating v1, v2, v3, and v4. It assumes that there is at least one block -// to process. -#define blockLoop() \ -loop: \ - MOVQ +0(p), x \ - round(v1, x) \ - MOVQ +8(p), x \ - round(v2, x) \ - MOVQ +16(p), x \ - round(v3, x) \ - MOVQ +24(p), x \ - round(v4, x) \ - ADDQ $32, p \ - CMPQ p, end \ - JLE loop - -// func Sum64(b []byte) uint64 -TEXT ·Sum64(SB), NOSPLIT|NOFRAME, $0-32 - // Load fixed primes. - MOVQ ·primes+0(SB), prime1 - MOVQ ·primes+8(SB), prime2 - MOVQ ·primes+24(SB), prime4 - - // Load slice. - MOVQ b_base+0(FP), p - MOVQ b_len+8(FP), n - LEAQ (p)(n*1), end - - // The first loop limit will be len(b)-32. - SUBQ $32, end - - // Check whether we have at least one block. - CMPQ n, $32 - JLT noBlocks - - // Set up initial state (v1, v2, v3, v4). - MOVQ prime1, v1 - ADDQ prime2, v1 - MOVQ prime2, v2 - XORQ v3, v3 - XORQ v4, v4 - SUBQ prime1, v4 - - blockLoop() - - MOVQ v1, h - ROLQ $1, h - MOVQ v2, x - ROLQ $7, x - ADDQ x, h - MOVQ v3, x - ROLQ $12, x - ADDQ x, h - MOVQ v4, x - ROLQ $18, x - ADDQ x, h - - mergeRound(h, v1) - mergeRound(h, v2) - mergeRound(h, v3) - mergeRound(h, v4) - - JMP afterBlocks - -noBlocks: - MOVQ ·primes+32(SB), h - -afterBlocks: - ADDQ n, h - - ADDQ $24, end - CMPQ p, end - JG try4 - -loop8: - MOVQ (p), x - ADDQ $8, p - round0(x) - XORQ x, h - ROLQ $27, h - IMULQ prime1, h - ADDQ prime4, h - - CMPQ p, end - JLE loop8 - -try4: - ADDQ $4, end - CMPQ p, end - JG try1 - - MOVL (p), x - ADDQ $4, p - IMULQ prime1, x - XORQ x, h - - ROLQ $23, h - IMULQ prime2, h - ADDQ ·primes+16(SB), h - -try1: - ADDQ $4, end - CMPQ p, end - JGE finalize - -loop1: - MOVBQZX (p), x - ADDQ $1, p - IMULQ ·primes+32(SB), x - XORQ x, h - ROLQ $11, h - IMULQ prime1, h - - CMPQ p, end - JL loop1 - -finalize: - MOVQ h, x - SHRQ $33, x - XORQ x, h - IMULQ prime2, h - MOVQ h, x - SHRQ $29, x - XORQ x, h - IMULQ ·primes+16(SB), h - MOVQ h, x - SHRQ $32, x - XORQ x, h - - MOVQ h, ret+24(FP) - RET - -// func writeBlocks(d *Digest, b []byte) int -TEXT ·writeBlocks(SB), NOSPLIT|NOFRAME, $0-40 - // Load fixed primes needed for round. - MOVQ ·primes+0(SB), prime1 - MOVQ ·primes+8(SB), prime2 - - // Load slice. - MOVQ b_base+8(FP), p - MOVQ b_len+16(FP), n - LEAQ (p)(n*1), end - SUBQ $32, end - - // Load vN from d. - MOVQ s+0(FP), d - MOVQ 0(d), v1 - MOVQ 8(d), v2 - MOVQ 16(d), v3 - MOVQ 24(d), v4 - - // We don't need to check the loop condition here; this function is - // always called with at least one block of data to process. - blockLoop() - - // Copy vN back to d. - MOVQ v1, 0(d) - MOVQ v2, 8(d) - MOVQ v3, 16(d) - MOVQ v4, 24(d) - - // The number of bytes written is p minus the old base pointer. - SUBQ b_base+8(FP), p - MOVQ p, ret+32(FP) - - RET diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_arm64.s b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_arm64.s deleted file mode 100644 index ae7d4d329..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_arm64.s +++ /dev/null @@ -1,184 +0,0 @@ -//go:build !appengine && gc && !purego && !noasm -// +build !appengine -// +build gc -// +build !purego -// +build !noasm - -#include "textflag.h" - -// Registers: -#define digest R1 -#define h R2 // return value -#define p R3 // input pointer -#define n R4 // input length -#define nblocks R5 // n / 32 -#define prime1 R7 -#define prime2 R8 -#define prime3 R9 -#define prime4 R10 -#define prime5 R11 -#define v1 R12 -#define v2 R13 -#define v3 R14 -#define v4 R15 -#define x1 R20 -#define x2 R21 -#define x3 R22 -#define x4 R23 - -#define round(acc, x) \ - MADD prime2, acc, x, acc \ - ROR $64-31, acc \ - MUL prime1, acc - -// round0 performs the operation x = round(0, x). -#define round0(x) \ - MUL prime2, x \ - ROR $64-31, x \ - MUL prime1, x - -#define mergeRound(acc, x) \ - round0(x) \ - EOR x, acc \ - MADD acc, prime4, prime1, acc - -// blockLoop processes as many 32-byte blocks as possible, -// updating v1, v2, v3, and v4. It assumes that n >= 32. -#define blockLoop() \ - LSR $5, n, nblocks \ - PCALIGN $16 \ - loop: \ - LDP.P 16(p), (x1, x2) \ - LDP.P 16(p), (x3, x4) \ - round(v1, x1) \ - round(v2, x2) \ - round(v3, x3) \ - round(v4, x4) \ - SUB $1, nblocks \ - CBNZ nblocks, loop - -// func Sum64(b []byte) uint64 -TEXT ·Sum64(SB), NOSPLIT|NOFRAME, $0-32 - LDP b_base+0(FP), (p, n) - - LDP ·primes+0(SB), (prime1, prime2) - LDP ·primes+16(SB), (prime3, prime4) - MOVD ·primes+32(SB), prime5 - - CMP $32, n - CSEL LT, prime5, ZR, h // if n < 32 { h = prime5 } else { h = 0 } - BLT afterLoop - - ADD prime1, prime2, v1 - MOVD prime2, v2 - MOVD $0, v3 - NEG prime1, v4 - - blockLoop() - - ROR $64-1, v1, x1 - ROR $64-7, v2, x2 - ADD x1, x2 - ROR $64-12, v3, x3 - ROR $64-18, v4, x4 - ADD x3, x4 - ADD x2, x4, h - - mergeRound(h, v1) - mergeRound(h, v2) - mergeRound(h, v3) - mergeRound(h, v4) - -afterLoop: - ADD n, h - - TBZ $4, n, try8 - LDP.P 16(p), (x1, x2) - - round0(x1) - - // NOTE: here and below, sequencing the EOR after the ROR (using a - // rotated register) is worth a small but measurable speedup for small - // inputs. - ROR $64-27, h - EOR x1 @> 64-27, h, h - MADD h, prime4, prime1, h - - round0(x2) - ROR $64-27, h - EOR x2 @> 64-27, h, h - MADD h, prime4, prime1, h - -try8: - TBZ $3, n, try4 - MOVD.P 8(p), x1 - - round0(x1) - ROR $64-27, h - EOR x1 @> 64-27, h, h - MADD h, prime4, prime1, h - -try4: - TBZ $2, n, try2 - MOVWU.P 4(p), x2 - - MUL prime1, x2 - ROR $64-23, h - EOR x2 @> 64-23, h, h - MADD h, prime3, prime2, h - -try2: - TBZ $1, n, try1 - MOVHU.P 2(p), x3 - AND $255, x3, x1 - LSR $8, x3, x2 - - MUL prime5, x1 - ROR $64-11, h - EOR x1 @> 64-11, h, h - MUL prime1, h - - MUL prime5, x2 - ROR $64-11, h - EOR x2 @> 64-11, h, h - MUL prime1, h - -try1: - TBZ $0, n, finalize - MOVBU (p), x4 - - MUL prime5, x4 - ROR $64-11, h - EOR x4 @> 64-11, h, h - MUL prime1, h - -finalize: - EOR h >> 33, h - MUL prime2, h - EOR h >> 29, h - MUL prime3, h - EOR h >> 32, h - - MOVD h, ret+24(FP) - RET - -// func writeBlocks(s *Digest, b []byte) int -TEXT ·writeBlocks(SB), NOSPLIT|NOFRAME, $0-40 - LDP ·primes+0(SB), (prime1, prime2) - - // Load state. Assume v[1-4] are stored contiguously. - MOVD s+0(FP), digest - LDP 0(digest), (v1, v2) - LDP 16(digest), (v3, v4) - - LDP b_base+8(FP), (p, n) - - blockLoop() - - // Store updated state. - STP (v1, v2), 0(digest) - STP (v3, v4), 16(digest) - - BIC $31, n - MOVD n, ret+32(FP) - RET diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_asm.go b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_asm.go deleted file mode 100644 index d4221edf4..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_asm.go +++ /dev/null @@ -1,16 +0,0 @@ -//go:build (amd64 || arm64) && !appengine && gc && !purego && !noasm -// +build amd64 arm64 -// +build !appengine -// +build gc -// +build !purego -// +build !noasm - -package xxhash - -// Sum64 computes the 64-bit xxHash digest of b. -// -//go:noescape -func Sum64(b []byte) uint64 - -//go:noescape -func writeBlocks(s *Digest, b []byte) int diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_other.go b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_other.go deleted file mode 100644 index 0be16cefc..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_other.go +++ /dev/null @@ -1,76 +0,0 @@ -//go:build (!amd64 && !arm64) || appengine || !gc || purego || noasm -// +build !amd64,!arm64 appengine !gc purego noasm - -package xxhash - -// Sum64 computes the 64-bit xxHash digest of b. -func Sum64(b []byte) uint64 { - // A simpler version would be - // d := New() - // d.Write(b) - // return d.Sum64() - // but this is faster, particularly for small inputs. - - n := len(b) - var h uint64 - - if n >= 32 { - v1 := primes[0] + prime2 - v2 := prime2 - v3 := uint64(0) - v4 := -primes[0] - for len(b) >= 32 { - v1 = round(v1, u64(b[0:8:len(b)])) - v2 = round(v2, u64(b[8:16:len(b)])) - v3 = round(v3, u64(b[16:24:len(b)])) - v4 = round(v4, u64(b[24:32:len(b)])) - b = b[32:len(b):len(b)] - } - h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4) - h = mergeRound(h, v1) - h = mergeRound(h, v2) - h = mergeRound(h, v3) - h = mergeRound(h, v4) - } else { - h = prime5 - } - - h += uint64(n) - - for ; len(b) >= 8; b = b[8:] { - k1 := round(0, u64(b[:8])) - h ^= k1 - h = rol27(h)*prime1 + prime4 - } - if len(b) >= 4 { - h ^= uint64(u32(b[:4])) * prime1 - h = rol23(h)*prime2 + prime3 - b = b[4:] - } - for ; len(b) > 0; b = b[1:] { - h ^= uint64(b[0]) * prime5 - h = rol11(h) * prime1 - } - - h ^= h >> 33 - h *= prime2 - h ^= h >> 29 - h *= prime3 - h ^= h >> 32 - - return h -} - -func writeBlocks(d *Digest, b []byte) int { - v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4 - n := len(b) - for len(b) >= 32 { - v1 = round(v1, u64(b[0:8:len(b)])) - v2 = round(v2, u64(b[8:16:len(b)])) - v3 = round(v3, u64(b[16:24:len(b)])) - v4 = round(v4, u64(b[24:32:len(b)])) - b = b[32:len(b):len(b)] - } - d.v1, d.v2, d.v3, d.v4 = v1, v2, v3, v4 - return n - len(b) -} diff --git a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_safe.go b/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_safe.go deleted file mode 100644 index 6f3b0cb10..000000000 --- a/vendor/github.com/klauspost/compress/zstd/internal/xxhash/xxhash_safe.go +++ /dev/null @@ -1,11 +0,0 @@ -package xxhash - -// Sum64String computes the 64-bit xxHash digest of s. -func Sum64String(s string) uint64 { - return Sum64([]byte(s)) -} - -// WriteString adds more data to d. It always returns len(s), nil. -func (d *Digest) WriteString(s string) (n int, err error) { - return d.Write([]byte(s)) -} |