mirror of https://github.com/status-im/op-geth.git
118 lines
2.8 KiB
Go
118 lines
2.8 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package storage
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/rand"
|
|
"io"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/logger/glog"
|
|
)
|
|
|
|
type limitedReader struct {
|
|
r io.Reader
|
|
off int64
|
|
size int64
|
|
}
|
|
|
|
func limitReader(r io.Reader, size int) *limitedReader {
|
|
return &limitedReader{r, 0, int64(size)}
|
|
}
|
|
|
|
func (self *limitedReader) Read(buf []byte) (int, error) {
|
|
limit := int64(len(buf))
|
|
left := self.size - self.off
|
|
if limit >= left {
|
|
limit = left
|
|
}
|
|
n, err := self.r.Read(buf[:limit])
|
|
if err == nil && limit == left {
|
|
err = io.EOF
|
|
}
|
|
self.off += int64(n)
|
|
return n, err
|
|
}
|
|
|
|
func testDataReader(l int) (r io.Reader) {
|
|
return limitReader(rand.Reader, l)
|
|
}
|
|
|
|
func testDataReaderAndSlice(l int) (r io.Reader, slice []byte) {
|
|
slice = make([]byte, l)
|
|
if _, err := rand.Read(slice); err != nil {
|
|
panic("rand error")
|
|
}
|
|
r = limitReader(bytes.NewReader(slice), l)
|
|
return
|
|
}
|
|
|
|
func testStore(m ChunkStore, l int64, branches int64, t *testing.T) {
|
|
|
|
chunkC := make(chan *Chunk)
|
|
go func() {
|
|
for chunk := range chunkC {
|
|
m.Put(chunk)
|
|
if chunk.wg != nil {
|
|
chunk.wg.Done()
|
|
}
|
|
}
|
|
}()
|
|
chunker := NewTreeChunker(&ChunkerParams{
|
|
Branches: branches,
|
|
Hash: defaultHash,
|
|
})
|
|
swg := &sync.WaitGroup{}
|
|
key, err := chunker.Split(rand.Reader, l, chunkC, swg, nil)
|
|
swg.Wait()
|
|
close(chunkC)
|
|
chunkC = make(chan *Chunk)
|
|
|
|
quit := make(chan bool)
|
|
|
|
go func() {
|
|
for ch := range chunkC {
|
|
go func(chunk *Chunk) {
|
|
storedChunk, err := m.Get(chunk.Key)
|
|
if err == notFound {
|
|
glog.V(logger.Detail).Infof("chunk '%v' not found", chunk.Key.Log())
|
|
} else if err != nil {
|
|
glog.V(logger.Detail).Infof("error retrieving chunk %v: %v", chunk.Key.Log(), err)
|
|
} else {
|
|
chunk.SData = storedChunk.SData
|
|
chunk.Size = storedChunk.Size
|
|
}
|
|
glog.V(logger.Detail).Infof("chunk '%v' not found", chunk.Key.Log())
|
|
close(chunk.C)
|
|
}(ch)
|
|
}
|
|
close(quit)
|
|
}()
|
|
r := chunker.Join(key, chunkC)
|
|
|
|
b := make([]byte, l)
|
|
n, err := r.ReadAt(b, 0)
|
|
if err != io.EOF {
|
|
t.Fatalf("read error (%v/%v) %v", n, l, err)
|
|
}
|
|
close(chunkC)
|
|
<-quit
|
|
}
|