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chunker perpared for nil chunk channel, bzzhash from bzz-fefe modified for chunker API

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This commit is contained in:
Daniel A. Nagy 2015-02-01 15:35:15 +01:00
parent 463b056518
commit b710ad9568
2 changed files with 20 additions and 4 deletions
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14
bzz/bzzhash/bzzhash.go
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@ -22,7 +22,17 @@ func main() {
stat, _ := f.Stat() stat, _ := f.Stat()
sr := io.NewSectionReader(f, 0, stat.Size()) sr := io.NewSectionReader(f, 0, stat.Size())
hash := bzz.GetDPAhash(sr, nil) chunker := &bzz.TreeChunker{
Branches: 128,
}
chunker.Init()
hash := make([]byte, chunker.HashSize())
errC := chunker.Split(hash, sr, nil)
err, ok := <-errC
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
}
if !ok {
fmt.Printf("%064x\n", hash) fmt.Printf("%064x\n", hash)
}
} }

6
bzz/chunker.go
View file

@ -111,6 +111,10 @@ func (self *TreeChunker) Init() {
} }
func (self *TreeChunker) HashSize() int64 {
return self.hashSize
}
type Chunk struct { type Chunk struct {
Data SectionReader // nil if request, to be supplied by dpa Data SectionReader // nil if request, to be supplied by dpa
Size int64 // size of the data covered by the subtree encoded in this chunk Size int64 // size of the data covered by the subtree encoded in this chunk
@ -258,7 +262,9 @@ func (self *TreeChunker) split(depth int, treeSize int64, key Key, data SectionR
} }
} }
// send off new chunk to storage // send off new chunk to storage
if chunkC != nil {
chunkC <- newChunk chunkC <- newChunk
}
// report hash of this chunk one level up (keys corresponds to the proper subslice of the parent chunk)x // report hash of this chunk one level up (keys corresponds to the proper subslice of the parent chunk)x
copy(key, hash) copy(key, hash)