553 lines
18 KiB
Go
553 lines
18 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package storage
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import (
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"bytes"
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"crypto/rand"
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"encoding/binary"
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"errors"
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"fmt"
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"io"
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"sync"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/crypto/sha3"
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)
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/*
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Tests TreeChunker by splitting and joining a random byte slice
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*/
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type test interface {
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Fatalf(string, ...interface{})
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Logf(string, ...interface{})
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}
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type chunkerTester struct {
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inputs map[uint64][]byte
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chunks map[string]*Chunk
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t test
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}
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func (self *chunkerTester) Split(chunker Splitter, data io.Reader, size int64, chunkC chan *Chunk, swg *sync.WaitGroup, expectedError error) (key Key, err error) {
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// reset
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self.chunks = make(map[string]*Chunk)
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if self.inputs == nil {
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self.inputs = make(map[uint64][]byte)
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}
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quitC := make(chan bool)
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timeout := time.After(600 * time.Second)
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if chunkC != nil {
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go func() error {
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for {
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select {
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case <-timeout:
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return errors.New("Split timeout error")
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case <-quitC:
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return nil
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case chunk := <-chunkC:
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// self.chunks = append(self.chunks, chunk)
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self.chunks[chunk.Key.String()] = chunk
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if chunk.wg != nil {
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chunk.wg.Done()
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}
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}
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}
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}()
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}
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key, err = chunker.Split(data, size, chunkC, swg, nil)
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if err != nil && expectedError == nil {
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err = fmt.Errorf("Split error: %v", err)
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}
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if chunkC != nil {
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if swg != nil {
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swg.Wait()
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}
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close(quitC)
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}
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return key, err
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}
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func (self *chunkerTester) Append(chunker Splitter, rootKey Key, data io.Reader, chunkC chan *Chunk, swg *sync.WaitGroup, expectedError error) (key Key, err error) {
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quitC := make(chan bool)
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timeout := time.After(60 * time.Second)
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if chunkC != nil {
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go func() error {
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for {
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select {
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case <-timeout:
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return errors.New("Append timeout error")
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case <-quitC:
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return nil
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case chunk := <-chunkC:
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if chunk != nil {
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stored, success := self.chunks[chunk.Key.String()]
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if !success {
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// Requesting data
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self.chunks[chunk.Key.String()] = chunk
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if chunk.wg != nil {
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chunk.wg.Done()
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}
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} else {
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// getting data
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chunk.SData = stored.SData
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chunk.Size = int64(binary.LittleEndian.Uint64(chunk.SData[0:8]))
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close(chunk.C)
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}
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}
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}
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}
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}()
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}
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key, err = chunker.Append(rootKey, data, chunkC, swg, nil)
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if err != nil && expectedError == nil {
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err = fmt.Errorf("Append error: %v", err)
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}
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if chunkC != nil {
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if swg != nil {
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swg.Wait()
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}
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close(quitC)
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}
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return key, err
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}
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func (self *chunkerTester) Join(chunker Chunker, key Key, c int, chunkC chan *Chunk, quitC chan bool) LazySectionReader {
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// reset but not the chunks
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reader := chunker.Join(key, chunkC)
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timeout := time.After(600 * time.Second)
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i := 0
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go func() error {
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for {
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select {
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case <-timeout:
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return errors.New("Join timeout error")
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case chunk, ok := <-chunkC:
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if !ok {
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close(quitC)
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return nil
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}
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// this just mocks the behaviour of a chunk store retrieval
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stored, success := self.chunks[chunk.Key.String()]
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if !success {
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return errors.New("Not found")
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}
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chunk.SData = stored.SData
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chunk.Size = int64(binary.LittleEndian.Uint64(chunk.SData[0:8]))
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close(chunk.C)
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i++
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}
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}
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}()
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return reader
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}
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func testRandomBrokenData(splitter Splitter, n int, tester *chunkerTester) {
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data := io.LimitReader(rand.Reader, int64(n))
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brokendata := brokenLimitReader(data, n, n/2)
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buf := make([]byte, n)
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_, err := brokendata.Read(buf)
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if err == nil || err.Error() != "Broken reader" {
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tester.t.Fatalf("Broken reader is not broken, hence broken. Returns: %v", err)
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}
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data = io.LimitReader(rand.Reader, int64(n))
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brokendata = brokenLimitReader(data, n, n/2)
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chunkC := make(chan *Chunk, 1000)
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swg := &sync.WaitGroup{}
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expectedError := fmt.Errorf("Broken reader")
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key, err := tester.Split(splitter, brokendata, int64(n), chunkC, swg, expectedError)
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if err == nil || err.Error() != expectedError.Error() {
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tester.t.Fatalf("Not receiving the correct error! Expected %v, received %v", expectedError, err)
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}
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tester.t.Logf(" Key = %v\n", key)
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}
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func testRandomData(splitter Splitter, n int, tester *chunkerTester) Key {
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if tester.inputs == nil {
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tester.inputs = make(map[uint64][]byte)
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}
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input, found := tester.inputs[uint64(n)]
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var data io.Reader
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if !found {
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data, input = testDataReaderAndSlice(n)
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tester.inputs[uint64(n)] = input
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} else {
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data = io.LimitReader(bytes.NewReader(input), int64(n))
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}
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chunkC := make(chan *Chunk, 1000)
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swg := &sync.WaitGroup{}
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key, err := tester.Split(splitter, data, int64(n), chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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tester.t.Logf(" Key = %v\n", key)
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chunkC = make(chan *Chunk, 1000)
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quitC := make(chan bool)
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chunker := NewTreeChunker(NewChunkerParams())
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reader := tester.Join(chunker, key, 0, chunkC, quitC)
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output := make([]byte, n)
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r, err := reader.Read(output)
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if r != n || err != io.EOF {
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tester.t.Fatalf("read error read: %v n = %v err = %v\n", r, n, err)
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}
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if input != nil {
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if !bytes.Equal(output, input) {
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tester.t.Fatalf("input and output mismatch\n IN: %v\nOUT: %v\n", input, output)
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}
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}
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close(chunkC)
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<-quitC
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return key
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}
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func testRandomDataAppend(splitter Splitter, n, m int, tester *chunkerTester) {
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if tester.inputs == nil {
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tester.inputs = make(map[uint64][]byte)
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}
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input, found := tester.inputs[uint64(n)]
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var data io.Reader
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if !found {
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data, input = testDataReaderAndSlice(n)
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tester.inputs[uint64(n)] = input
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} else {
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data = io.LimitReader(bytes.NewReader(input), int64(n))
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}
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chunkC := make(chan *Chunk, 1000)
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swg := &sync.WaitGroup{}
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key, err := tester.Split(splitter, data, int64(n), chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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tester.t.Logf(" Key = %v\n", key)
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//create a append data stream
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appendInput, found := tester.inputs[uint64(m)]
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var appendData io.Reader
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if !found {
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appendData, appendInput = testDataReaderAndSlice(m)
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tester.inputs[uint64(m)] = appendInput
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} else {
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appendData = io.LimitReader(bytes.NewReader(appendInput), int64(m))
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}
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chunkC = make(chan *Chunk, 1000)
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swg = &sync.WaitGroup{}
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newKey, err := tester.Append(splitter, key, appendData, chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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tester.t.Logf(" NewKey = %v\n", newKey)
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chunkC = make(chan *Chunk, 1000)
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quitC := make(chan bool)
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chunker := NewTreeChunker(NewChunkerParams())
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reader := tester.Join(chunker, newKey, 0, chunkC, quitC)
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newOutput := make([]byte, n+m)
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r, err := reader.Read(newOutput)
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if r != (n + m) {
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tester.t.Fatalf("read error read: %v n = %v err = %v\n", r, n, err)
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}
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newInput := append(input, appendInput...)
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if !bytes.Equal(newOutput, newInput) {
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tester.t.Fatalf("input and output mismatch\n IN: %v\nOUT: %v\n", newInput, newOutput)
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}
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close(chunkC)
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}
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func TestSha3ForCorrectness(t *testing.T) {
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tester := &chunkerTester{t: t}
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size := 4096
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input := make([]byte, size+8)
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binary.LittleEndian.PutUint64(input[:8], uint64(size))
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io.LimitReader(bytes.NewReader(input[8:]), int64(size))
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rawSha3 := sha3.NewKeccak256()
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rawSha3.Reset()
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rawSha3.Write(input)
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rawSha3Output := rawSha3.Sum(nil)
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sha3FromMakeFunc := MakeHashFunc(SHA3Hash)()
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sha3FromMakeFunc.ResetWithLength(input[:8])
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sha3FromMakeFunc.Write(input[8:])
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sha3FromMakeFuncOutput := sha3FromMakeFunc.Sum(nil)
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if len(rawSha3Output) != len(sha3FromMakeFuncOutput) {
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tester.t.Fatalf("Original SHA3 and abstracted Sha3 has different length %v:%v\n", len(rawSha3Output), len(sha3FromMakeFuncOutput))
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}
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if !bytes.Equal(rawSha3Output, sha3FromMakeFuncOutput) {
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tester.t.Fatalf("Original SHA3 and abstracted Sha3 mismatch %v:%v\n", rawSha3Output, sha3FromMakeFuncOutput)
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}
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}
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func TestDataAppend(t *testing.T) {
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sizes := []int{1, 1, 1, 4095, 4096, 4097, 1, 1, 1, 123456, 2345678, 2345678}
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appendSizes := []int{4095, 4096, 4097, 1, 1, 1, 8191, 8192, 8193, 9000, 3000, 5000}
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tester := &chunkerTester{t: t}
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chunker := NewPyramidChunker(NewChunkerParams())
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for i, s := range sizes {
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testRandomDataAppend(chunker, s, appendSizes[i], tester)
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}
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}
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func TestRandomData(t *testing.T) {
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sizes := []int{1, 60, 83, 179, 253, 1024, 4095, 4096, 4097, 8191, 8192, 8193, 12287, 12288, 12289, 123456, 2345678}
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tester := &chunkerTester{t: t}
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chunker := NewTreeChunker(NewChunkerParams())
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pyramid := NewPyramidChunker(NewChunkerParams())
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for _, s := range sizes {
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treeChunkerKey := testRandomData(chunker, s, tester)
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pyramidChunkerKey := testRandomData(pyramid, s, tester)
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if treeChunkerKey.String() != pyramidChunkerKey.String() {
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tester.t.Fatalf("tree chunker and pyramid chunker key mismatch for size %v\n TC: %v\n PC: %v\n", s, treeChunkerKey.String(), pyramidChunkerKey.String())
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}
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}
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cp := NewChunkerParams()
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cp.Hash = BMTHash
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chunker = NewTreeChunker(cp)
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pyramid = NewPyramidChunker(cp)
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for _, s := range sizes {
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treeChunkerKey := testRandomData(chunker, s, tester)
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pyramidChunkerKey := testRandomData(pyramid, s, tester)
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if treeChunkerKey.String() != pyramidChunkerKey.String() {
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tester.t.Fatalf("tree chunker BMT and pyramid chunker BMT key mismatch for size %v \n TC: %v\n PC: %v\n", s, treeChunkerKey.String(), pyramidChunkerKey.String())
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}
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}
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}
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func TestRandomBrokenData(t *testing.T) {
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sizes := []int{1, 60, 83, 179, 253, 1024, 4095, 4096, 4097, 8191, 8192, 8193, 12287, 12288, 12289, 123456, 2345678}
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tester := &chunkerTester{t: t}
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chunker := NewTreeChunker(NewChunkerParams())
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for _, s := range sizes {
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testRandomBrokenData(chunker, s, tester)
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}
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}
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func benchReadAll(reader LazySectionReader) {
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size, _ := reader.Size(nil)
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output := make([]byte, 1000)
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for pos := int64(0); pos < size; pos += 1000 {
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reader.ReadAt(output, pos)
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}
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}
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func benchmarkJoin(n int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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chunker := NewTreeChunker(NewChunkerParams())
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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chunkC := make(chan *Chunk, 1000)
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swg := &sync.WaitGroup{}
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key, err := tester.Split(chunker, data, int64(n), chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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chunkC = make(chan *Chunk, 1000)
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quitC := make(chan bool)
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reader := tester.Join(chunker, key, i, chunkC, quitC)
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benchReadAll(reader)
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close(chunkC)
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<-quitC
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}
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}
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func benchmarkSplitTreeSHA3(n int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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chunker := NewTreeChunker(NewChunkerParams())
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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_, err := tester.Split(chunker, data, int64(n), nil, nil, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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}
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}
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func benchmarkSplitTreeBMT(n int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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cp := NewChunkerParams()
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cp.Hash = BMTHash
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chunker := NewTreeChunker(cp)
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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_, err := tester.Split(chunker, data, int64(n), nil, nil, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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}
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}
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func benchmarkSplitPyramidSHA3(n int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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splitter := NewPyramidChunker(NewChunkerParams())
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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_, err := tester.Split(splitter, data, int64(n), nil, nil, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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}
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}
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func benchmarkSplitPyramidBMT(n int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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cp := NewChunkerParams()
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cp.Hash = BMTHash
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splitter := NewPyramidChunker(cp)
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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_, err := tester.Split(splitter, data, int64(n), nil, nil, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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}
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}
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func benchmarkAppendPyramid(n, m int, t *testing.B) {
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t.ReportAllocs()
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for i := 0; i < t.N; i++ {
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chunker := NewPyramidChunker(NewChunkerParams())
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tester := &chunkerTester{t: t}
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data := testDataReader(n)
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data1 := testDataReader(m)
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chunkC := make(chan *Chunk, 1000)
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swg := &sync.WaitGroup{}
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key, err := tester.Split(chunker, data, int64(n), chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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chunkC = make(chan *Chunk, 1000)
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swg = &sync.WaitGroup{}
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_, err = tester.Append(chunker, key, data1, chunkC, swg, nil)
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if err != nil {
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tester.t.Fatalf(err.Error())
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}
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close(chunkC)
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}
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}
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func BenchmarkJoin_2(t *testing.B) { benchmarkJoin(100, t) }
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func BenchmarkJoin_3(t *testing.B) { benchmarkJoin(1000, t) }
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func BenchmarkJoin_4(t *testing.B) { benchmarkJoin(10000, t) }
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func BenchmarkJoin_5(t *testing.B) { benchmarkJoin(100000, t) }
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func BenchmarkJoin_6(t *testing.B) { benchmarkJoin(1000000, t) }
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func BenchmarkJoin_7(t *testing.B) { benchmarkJoin(10000000, t) }
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func BenchmarkJoin_8(t *testing.B) { benchmarkJoin(100000000, t) }
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func BenchmarkSplitTreeSHA3_2(t *testing.B) { benchmarkSplitTreeSHA3(100, t) }
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func BenchmarkSplitTreeSHA3_2h(t *testing.B) { benchmarkSplitTreeSHA3(500, t) }
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func BenchmarkSplitTreeSHA3_3(t *testing.B) { benchmarkSplitTreeSHA3(1000, t) }
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func BenchmarkSplitTreeSHA3_3h(t *testing.B) { benchmarkSplitTreeSHA3(5000, t) }
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func BenchmarkSplitTreeSHA3_4(t *testing.B) { benchmarkSplitTreeSHA3(10000, t) }
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func BenchmarkSplitTreeSHA3_4h(t *testing.B) { benchmarkSplitTreeSHA3(50000, t) }
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func BenchmarkSplitTreeSHA3_5(t *testing.B) { benchmarkSplitTreeSHA3(100000, t) }
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func BenchmarkSplitTreeSHA3_6(t *testing.B) { benchmarkSplitTreeSHA3(1000000, t) }
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func BenchmarkSplitTreeSHA3_7(t *testing.B) { benchmarkSplitTreeSHA3(10000000, t) }
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func BenchmarkSplitTreeSHA3_8(t *testing.B) { benchmarkSplitTreeSHA3(100000000, t) }
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func BenchmarkSplitTreeBMT_2(t *testing.B) { benchmarkSplitTreeBMT(100, t) }
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func BenchmarkSplitTreeBMT_2h(t *testing.B) { benchmarkSplitTreeBMT(500, t) }
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func BenchmarkSplitTreeBMT_3(t *testing.B) { benchmarkSplitTreeBMT(1000, t) }
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func BenchmarkSplitTreeBMT_3h(t *testing.B) { benchmarkSplitTreeBMT(5000, t) }
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func BenchmarkSplitTreeBMT_4(t *testing.B) { benchmarkSplitTreeBMT(10000, t) }
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func BenchmarkSplitTreeBMT_4h(t *testing.B) { benchmarkSplitTreeBMT(50000, t) }
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func BenchmarkSplitTreeBMT_5(t *testing.B) { benchmarkSplitTreeBMT(100000, t) }
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func BenchmarkSplitTreeBMT_6(t *testing.B) { benchmarkSplitTreeBMT(1000000, t) }
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func BenchmarkSplitTreeBMT_7(t *testing.B) { benchmarkSplitTreeBMT(10000000, t) }
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func BenchmarkSplitTreeBMT_8(t *testing.B) { benchmarkSplitTreeBMT(100000000, t) }
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func BenchmarkSplitPyramidSHA3_2(t *testing.B) { benchmarkSplitPyramidSHA3(100, t) }
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func BenchmarkSplitPyramidSHA3_2h(t *testing.B) { benchmarkSplitPyramidSHA3(500, t) }
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func BenchmarkSplitPyramidSHA3_3(t *testing.B) { benchmarkSplitPyramidSHA3(1000, t) }
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func BenchmarkSplitPyramidSHA3_3h(t *testing.B) { benchmarkSplitPyramidSHA3(5000, t) }
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func BenchmarkSplitPyramidSHA3_4(t *testing.B) { benchmarkSplitPyramidSHA3(10000, t) }
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func BenchmarkSplitPyramidSHA3_4h(t *testing.B) { benchmarkSplitPyramidSHA3(50000, t) }
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func BenchmarkSplitPyramidSHA3_5(t *testing.B) { benchmarkSplitPyramidSHA3(100000, t) }
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func BenchmarkSplitPyramidSHA3_6(t *testing.B) { benchmarkSplitPyramidSHA3(1000000, t) }
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func BenchmarkSplitPyramidSHA3_7(t *testing.B) { benchmarkSplitPyramidSHA3(10000000, t) }
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func BenchmarkSplitPyramidSHA3_8(t *testing.B) { benchmarkSplitPyramidSHA3(100000000, t) }
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func BenchmarkSplitPyramidBMT_2(t *testing.B) { benchmarkSplitPyramidBMT(100, t) }
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func BenchmarkSplitPyramidBMT_2h(t *testing.B) { benchmarkSplitPyramidBMT(500, t) }
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func BenchmarkSplitPyramidBMT_3(t *testing.B) { benchmarkSplitPyramidBMT(1000, t) }
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func BenchmarkSplitPyramidBMT_3h(t *testing.B) { benchmarkSplitPyramidBMT(5000, t) }
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func BenchmarkSplitPyramidBMT_4(t *testing.B) { benchmarkSplitPyramidBMT(10000, t) }
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func BenchmarkSplitPyramidBMT_4h(t *testing.B) { benchmarkSplitPyramidBMT(50000, t) }
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func BenchmarkSplitPyramidBMT_5(t *testing.B) { benchmarkSplitPyramidBMT(100000, t) }
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func BenchmarkSplitPyramidBMT_6(t *testing.B) { benchmarkSplitPyramidBMT(1000000, t) }
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func BenchmarkSplitPyramidBMT_7(t *testing.B) { benchmarkSplitPyramidBMT(10000000, t) }
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func BenchmarkSplitPyramidBMT_8(t *testing.B) { benchmarkSplitPyramidBMT(100000000, t) }
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func BenchmarkAppendPyramid_2(t *testing.B) { benchmarkAppendPyramid(100, 1000, t) }
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func BenchmarkAppendPyramid_2h(t *testing.B) { benchmarkAppendPyramid(500, 1000, t) }
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func BenchmarkAppendPyramid_3(t *testing.B) { benchmarkAppendPyramid(1000, 1000, t) }
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func BenchmarkAppendPyramid_4(t *testing.B) { benchmarkAppendPyramid(10000, 1000, t) }
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func BenchmarkAppendPyramid_4h(t *testing.B) { benchmarkAppendPyramid(50000, 1000, t) }
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func BenchmarkAppendPyramid_5(t *testing.B) { benchmarkAppendPyramid(1000000, 1000, t) }
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func BenchmarkAppendPyramid_6(t *testing.B) { benchmarkAppendPyramid(1000000, 1000, t) }
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func BenchmarkAppendPyramid_7(t *testing.B) { benchmarkAppendPyramid(10000000, 1000, t) }
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func BenchmarkAppendPyramid_8(t *testing.B) { benchmarkAppendPyramid(100000000, 1000, t) }
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// go test -timeout 20m -cpu 4 -bench=./swarm/storage -run no
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// If you dont add the timeout argument above .. the benchmark will timeout and dump
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