forked from cerc-io/plugeth
Merge pull request #3108 from homotopycolimit/FixChunkerWithBrokenReader
swarm/storage: fixes for tree chunker in the context of a broken reader
This commit is contained in:
Felix Lange
GitHub
commit
30fb5c3e81
@ -23,8 +23,6 @@ import (
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"hash"
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"io"
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"sync"
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// "github.com/ethereum/go-ethereum/logger"
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// "github.com/ethereum/go-ethereum/logger/glog"
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)
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/*
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@ -124,12 +122,13 @@ func (self *TreeChunker) Split(data io.Reader, size int64, chunkC chan *Chunk, s
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jobC := make(chan *hashJob, 2*processors)
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wg := &sync.WaitGroup{}
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errC := make(chan error)
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quitC := make(chan bool)
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// wwg = workers waitgroup keeps track of hashworkers spawned by this split call
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if wwg != nil {
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wwg.Add(1)
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}
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go self.hashWorker(jobC, chunkC, errC, swg, wwg)
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go self.hashWorker(jobC, chunkC, errC, quitC, swg, wwg)
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depth := 0
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treeSize := self.chunkSize
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@ -141,11 +140,10 @@ func (self *TreeChunker) Split(data io.Reader, size int64, chunkC chan *Chunk, s
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}
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key := make([]byte, self.hashFunc().Size())
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// glog.V(logger.Detail).Infof("split request received for data (%v bytes, depth: %v)", size, depth)
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// this waitgroup member is released after the root hash is calculated
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wg.Add(1)
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//launch actual recursive function passing the waitgroups
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go self.split(depth, treeSize/self.branches, key, data, size, jobC, chunkC, errC, wg, swg, wwg)
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go self.split(depth, treeSize/self.branches, key, data, size, jobC, chunkC, errC, quitC, wg, swg, wwg)
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// closes internal error channel if all subprocesses in the workgroup finished
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go func() {
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@ -153,7 +151,6 @@ func (self *TreeChunker) Split(data io.Reader, size int64, chunkC chan *Chunk, s
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wg.Wait()
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// if storage waitgroup is non-nil, we wait for storage to finish too
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if swg != nil {
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// glog.V(logger.Detail).Infof("Waiting for storage to finish")
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swg.Wait()
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}
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close(errC)
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@ -162,14 +159,15 @@ func (self *TreeChunker) Split(data io.Reader, size int64, chunkC chan *Chunk, s
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select {
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case err := <-errC:
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if err != nil {
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close(quitC)
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return nil, err
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}
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//
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//TODO: add a timeout
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}
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return key, nil
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}
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func (self *TreeChunker) split(depth int, treeSize int64, key Key, data io.Reader, size int64, jobC chan *hashJob, chunkC chan *Chunk, errC chan error, parentWg, swg, wwg *sync.WaitGroup) {
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func (self *TreeChunker) split(depth int, treeSize int64, key Key, data io.Reader, size int64, jobC chan *hashJob, chunkC chan *Chunk, errC chan error, quitC chan bool, parentWg, swg, wwg *sync.WaitGroup) {
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for depth > 0 && size < treeSize {
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treeSize /= self.branches
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@ -180,17 +178,20 @@ func (self *TreeChunker) split(depth int, treeSize int64, key Key, data io.Reade
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// leaf nodes -> content chunks
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chunkData := make([]byte, size+8)
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binary.LittleEndian.PutUint64(chunkData[0:8], uint64(size))
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data.Read(chunkData[8:])
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_, err := data.Read(chunkData[8:])
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if err != nil {
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errC <- err
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return
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}
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select {
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case jobC <- &hashJob{key, chunkData, size, parentWg}:
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case <-errC:
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case <-quitC:
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}
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// glog.V(logger.Detail).Infof("read %v", size)
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return
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}
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// dept > 0
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// intermediate chunk containing child nodes hashes
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branchCnt := int64((size + treeSize - 1) / treeSize)
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// glog.V(logger.Detail).Infof("intermediate node: setting branches: %v, depth: %v, max subtree size: %v, data size: %v", branches, depth, treeSize, size)
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var chunk []byte = make([]byte, branchCnt*self.hashSize+8)
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var pos, i int64
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@ -210,7 +211,7 @@ func (self *TreeChunker) split(depth int, treeSize int64, key Key, data io.Reade
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subTreeKey := chunk[8+i*self.hashSize : 8+(i+1)*self.hashSize]
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childrenWg.Add(1)
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self.split(depth-1, treeSize/self.branches, subTreeKey, data, secSize, jobC, chunkC, errC, childrenWg, swg, wwg)
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self.split(depth-1, treeSize/self.branches, subTreeKey, data, secSize, jobC, chunkC, errC, quitC, childrenWg, swg, wwg)
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i++
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pos += treeSize
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@ -224,15 +225,15 @@ func (self *TreeChunker) split(depth int, treeSize int64, key Key, data io.Reade
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wwg.Add(1)
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}
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self.workerCount++
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go self.hashWorker(jobC, chunkC, errC, swg, wwg)
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go self.hashWorker(jobC, chunkC, errC, quitC, swg, wwg)
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}
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select {
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case jobC <- &hashJob{key, chunk, size, parentWg}:
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case <-errC:
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case <-quitC:
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}
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}
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func (self *TreeChunker) hashWorker(jobC chan *hashJob, chunkC chan *Chunk, errC chan error, swg, wwg *sync.WaitGroup) {
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func (self *TreeChunker) hashWorker(jobC chan *hashJob, chunkC chan *Chunk, errC chan error, quitC chan bool, swg, wwg *sync.WaitGroup) {
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hasher := self.hashFunc()
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if wwg != nil {
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defer wwg.Done()
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@ -247,8 +248,7 @@ func (self *TreeChunker) hashWorker(jobC chan *hashJob, chunkC chan *Chunk, errC
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// now we got the hashes in the chunk, then hash the chunks
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hasher.Reset()
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self.hashChunk(hasher, job, chunkC, swg)
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// glog.V(logger.Detail).Infof("hash chunk (%v)", job.size)
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case <-errC:
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case <-quitC:
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return
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}
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}
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@ -276,6 +276,7 @@ func (self *TreeChunker) hashChunk(hasher hash.Hash, job *hashJob, chunkC chan *
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}
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}
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job.parentWg.Done()
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if chunkC != nil {
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chunkC <- newChunk
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}
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@ -328,7 +329,6 @@ func (self *LazyChunkReader) Size(quitC chan bool) (n int64, err error) {
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func (self *LazyChunkReader) ReadAt(b []byte, off int64) (read int, err error) {
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// this is correct, a swarm doc cannot be zero length, so no EOF is expected
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if len(b) == 0 {
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// glog.V(logger.Detail).Infof("Size query for %v", chunk.Key.Log())
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return 0, nil
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}
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quitC := make(chan bool)
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@ -336,13 +336,10 @@ func (self *LazyChunkReader) ReadAt(b []byte, off int64) (read int, err error) {
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if err != nil {
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return 0, err
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}
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// glog.V(logger.Detail).Infof("readAt: len(b): %v, off: %v, size: %v ", len(b), off, size)
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errC := make(chan error)
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// glog.V(logger.Detail).Infof("readAt: reading %v into %d bytes at offset %d.", self.chunk.Key.Log(), len(b), off)
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// }
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// glog.V(logger.Detail).Infof("-> want: %v, off: %v size: %v ", want, off, self.size)
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var treeSize int64
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var depth int
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// calculate depth and max treeSize
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@ -364,22 +361,16 @@ func (self *LazyChunkReader) ReadAt(b []byte, off int64) (read int, err error) {
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return 0, err
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}
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// glog.V(logger.Detail).Infof("ReadAt received %v", err)
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// glog.V(logger.Detail).Infof("end: len(b): %v, off: %v, size: %v ", len(b), off, size)
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if off+int64(len(b)) >= size {
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// glog.V(logger.Detail).Infof(" len(b): %v EOF", len(b))
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return len(b), io.EOF
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}
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// glog.V(logger.Detail).Infof("ReadAt returning at %d: %v", read, err)
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return len(b), nil
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}
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func (self *LazyChunkReader) join(b []byte, off int64, eoff int64, depth int, treeSize int64, chunk *Chunk, parentWg *sync.WaitGroup, errC chan error, quitC chan bool) {
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defer parentWg.Done()
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// return NewDPA(&LocalStore{})
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// glog.V(logger.Detail).Infof("inh len(b): %v, off: %v eoff: %v ", len(b), off, eoff)
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// glog.V(logger.Detail).Infof("depth: %v, loff: %v, eoff: %v, chunk.Size: %v, treeSize: %v", depth, off, eoff, chunk.Size, treeSize)
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// chunk.Size = int64(binary.LittleEndian.Uint64(chunk.SData[0:8]))
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@ -391,7 +382,6 @@ func (self *LazyChunkReader) join(b []byte, off int64, eoff int64, depth int, tr
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// leaf chunk found
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if depth == 0 {
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// glog.V(logger.Detail).Infof("depth: %v, len(b): %v, off: %v, eoff: %v, chunk.Size: %v %v, treeSize: %v", depth, len(b), off, eoff, chunk.Size, len(chunk.SData), treeSize)
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extra := 8 + eoff - int64(len(chunk.SData))
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if extra > 0 {
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eoff -= extra
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@ -406,7 +396,6 @@ func (self *LazyChunkReader) join(b []byte, off int64, eoff int64, depth int, tr
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wg := &sync.WaitGroup{}
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defer wg.Wait()
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// glog.V(logger.Detail).Infof("start %v,end %v", start, end)
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for i := start; i < end; i++ {
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soff := i * treeSize
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@ -425,7 +414,6 @@ func (self *LazyChunkReader) join(b []byte, off int64, eoff int64, depth int, tr
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wg.Add(1)
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go func(j int64) {
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childKey := chunk.SData[8+j*self.hashSize : 8+(j+1)*self.hashSize]
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// glog.V(logger.Detail).Infof("subtree ind.ex: %v -> %v", j, childKey.Log())
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chunk := retrieve(childKey, self.chunkC, quitC)
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if chunk == nil {
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select {
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@ -450,7 +438,6 @@ func retrieve(key Key, chunkC chan *Chunk, quitC chan bool) *Chunk {
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Key: key,
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C: make(chan bool), // close channel to signal data delivery
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}
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// glog.V(logger.Detail).Infof("chunk data sent for %v (key interval in chunk %v-%v)", ch.Key.Log(), j*self.chunker.hashSize, (j+1)*self.chunker.hashSize)
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// submit chunk for retrieval
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select {
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case chunkC <- chunk: // submit retrieval request, someone should be listening on the other side (or we will time out globally)
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@ -464,7 +451,6 @@ func retrieve(key Key, chunkC chan *Chunk, quitC chan bool) *Chunk {
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// this is how we control process leakage (quitC is closed once join is finished (after timeout))
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return nil
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case <-chunk.C: // bells are ringing, data have been delivered
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// glog.V(logger.Detail).Infof("chunk data received")
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}
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if len(chunk.SData) == 0 {
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return nil // chunk.Size = int64(binary.LittleEndian.Uint64(chunk.SData[0:8]))
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@ -476,7 +462,6 @@ func retrieve(key Key, chunkC chan *Chunk, quitC chan bool) *Chunk {
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// Read keeps a cursor so cannot be called simulateously, see ReadAt
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func (self *LazyChunkReader) Read(b []byte) (read int, err error) {
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read, err = self.ReadAt(b, self.off)
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// glog.V(logger.Detail).Infof("read: %v, off: %v, error: %v", read, self.off, err)
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self.off += int64(read)
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return
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@ -18,6 +18,7 @@ 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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"fmt"
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"io"
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@ -27,6 +28,7 @@ import (
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"time"
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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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@ -49,7 +51,7 @@ func (self *chunkerTester) checkChunks(t *testing.T, want int) {
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}
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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) (key Key) {
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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) {
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// reset
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self.chunks = make(map[string]*Chunk)
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@ -65,14 +67,9 @@ func (self *chunkerTester) Split(chunker Splitter, data io.Reader, size int64, c
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select {
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case <-timeout:
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self.t.Fatalf("Join timeout error")
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case chunk, ok := <-chunkC:
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if !ok {
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// glog.V(logger.Info).Infof("chunkC closed quitting")
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close(quitC)
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return
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}
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// glog.V(logger.Info).Infof("chunk %v received", len(self.chunks))
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case <-quitC:
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return
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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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@ -83,21 +80,16 @@ func (self *chunkerTester) Split(chunker Splitter, data io.Reader, size int64, c
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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 {
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if err != nil && expectedError == nil {
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self.t.Fatalf("Split error: %v", err)
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} else if expectedError != nil && (err == nil || err.Error() != expectedError.Error()) {
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self.t.Fatalf("Not receiving the correct error! Expected %v, received %v", expectedError, err)
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}
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if chunkC != nil {
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if swg != nil {
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// glog.V(logger.Info).Infof("Waiting for storage to finish")
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swg.Wait()
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// glog.V(logger.Info).Infof("Storage finished")
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}
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close(chunkC)
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}
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if chunkC != nil {
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// glog.V(logger.Info).Infof("waiting for splitter finished")
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<-quitC
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// glog.V(logger.Info).Infof("Splitter finished")
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close(quitC)
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}
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return
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}
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@ -105,11 +97,9 @@ func (self *chunkerTester) Split(chunker Splitter, data io.Reader, size int64, c
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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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// glog.V(logger.Info).Infof("Splitter finished")
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reader := chunker.Join(key, chunkC)
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timeout := time.After(600 * time.Second)
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// glog.V(logger.Info).Infof("Splitter finished")
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i := 0
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go func() {
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for {
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@ -122,15 +112,12 @@ func (self *chunkerTester) Join(chunker Chunker, key Key, c int, chunkC chan *Ch
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close(quitC)
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return
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}
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// glog.V(logger.Info).Infof("chunk %v: %v", i, chunk.Key.String())
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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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// glog.V(logger.Info).Infof("chunk %v, success: %v", chunk.Key.String(), success)
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if !success {
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self.t.Fatalf("not found")
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return
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}
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// glog.V(logger.Info).Infof("chunk %v: %v", i, chunk.Key.String())
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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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@ -141,6 +128,26 @@ func (self *chunkerTester) Join(chunker Chunker, key Key, c int, chunkC chan *Ch
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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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key := tester.Split(splitter, brokendata, int64(n), chunkC, swg, fmt.Errorf("Broken reader"))
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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) {
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if tester.inputs == nil {
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tester.inputs = make(map[uint64][]byte)
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@ -151,13 +158,13 @@ func testRandomData(splitter Splitter, n int, tester *chunkerTester) {
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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 = limitReader(bytes.NewReader(input), n)
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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 := tester.Split(splitter, data, int64(n), chunkC, swg)
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key := tester.Split(splitter, data, int64(n), chunkC, swg, nil)
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tester.t.Logf(" Key = %v\n", key)
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chunkC = make(chan *Chunk, 1000)
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@ -166,9 +173,7 @@ func testRandomData(splitter Splitter, n int, tester *chunkerTester) {
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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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// glog.V(logger.Info).Infof(" Key = %v\n", key)
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r, err := reader.Read(output)
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// glog.V(logger.Info).Infof(" read = %v %v\n", r, err)
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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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@ -183,7 +188,7 @@ func testRandomData(splitter Splitter, n int, tester *chunkerTester) {
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func TestRandomData(t *testing.T) {
|
||||
// sizes := []int{123456}
|
||||
sizes := []int{1, 60, 83, 179, 253, 1024, 4095, 4096, 4097, 123456}
|
||||
sizes := []int{1, 60, 83, 179, 253, 1024, 4095, 4096, 4097, 8191, 8192, 8193, 123456, 2345678}
|
||||
tester := &chunkerTester{t: t}
|
||||
chunker := NewTreeChunker(NewChunkerParams())
|
||||
for _, s := range sizes {
|
||||
@ -195,6 +200,16 @@ func TestRandomData(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestRandomBrokenData(t *testing.T) {
|
||||
sizes := []int{1, 60, 83, 179, 253, 1024, 4095, 4096, 4097, 8191, 8192, 8193, 123456, 2345678}
|
||||
tester := &chunkerTester{t: t}
|
||||
chunker := NewTreeChunker(NewChunkerParams())
|
||||
for _, s := range sizes {
|
||||
testRandomBrokenData(chunker, s, tester)
|
||||
t.Logf("done size: %v", s)
|
||||
}
|
||||
}
|
||||
|
||||
func readAll(reader LazySectionReader, result []byte) {
|
||||
size := int64(len(result))
|
||||
|
||||
@ -227,7 +242,7 @@ func benchmarkJoin(n int, t *testing.B) {
|
||||
chunkC := make(chan *Chunk, 1000)
|
||||
swg := &sync.WaitGroup{}
|
||||
|
||||
key := tester.Split(chunker, data, int64(n), chunkC, swg)
|
||||
key := tester.Split(chunker, data, int64(n), chunkC, swg, nil)
|
||||
// t.StartTimer()
|
||||
chunkC = make(chan *Chunk, 1000)
|
||||
quitC := make(chan bool)
|
||||
@ -248,8 +263,7 @@ func benchmarkSplitTree(n int, t *testing.B) {
|
||||
chunker := NewTreeChunker(NewChunkerParams())
|
||||
tester := &chunkerTester{t: t}
|
||||
data := testDataReader(n)
|
||||
// glog.V(logger.Info).Infof("splitting data of length %v", n)
|
||||
tester.Split(chunker, data, int64(n), nil, nil)
|
||||
tester.Split(chunker, data, int64(n), nil, nil, nil)
|
||||
}
|
||||
stats := new(runtime.MemStats)
|
||||
runtime.ReadMemStats(stats)
|
||||
@ -262,8 +276,7 @@ func benchmarkSplitPyramid(n int, t *testing.B) {
|
||||
splitter := NewPyramidChunker(NewChunkerParams())
|
||||
tester := &chunkerTester{t: t}
|
||||
data := testDataReader(n)
|
||||
// glog.V(logger.Info).Infof("splitting data of length %v", n)
|
||||
tester.Split(splitter, data, int64(n), nil, nil)
|
||||
tester.Split(splitter, data, int64(n), nil, nil, nil)
|
||||
}
|
||||
stats := new(runtime.MemStats)
|
||||
runtime.ReadMemStats(stats)
|
||||
|
||||
@ -19,6 +19,7 @@ package storage
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/rand"
|
||||
"fmt"
|
||||
"io"
|
||||
"sync"
|
||||
"testing"
|
||||
@ -27,32 +28,31 @@ import (
|
||||
"github.com/ethereum/go-ethereum/logger/glog"
|
||||
)
|
||||
|
||||
type limitedReader struct {
|
||||
r io.Reader
|
||||
off int64
|
||||
size int64
|
||||
type brokenLimitedReader struct {
|
||||
lr io.Reader
|
||||
errAt int
|
||||
off int
|
||||
size int
|
||||
}
|
||||
|
||||
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
|
||||
func brokenLimitReader(data io.Reader, size int, errAt int) *brokenLimitedReader {
|
||||
return &brokenLimitedReader{
|
||||
lr: data,
|
||||
errAt: errAt,
|
||||
size: size,
|
||||
}
|
||||
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)
|
||||
return io.LimitReader(rand.Reader, int64(l))
|
||||
}
|
||||
|
||||
func (self *brokenLimitedReader) Read(buf []byte) (int, error) {
|
||||
if self.off+len(buf) > self.errAt {
|
||||
return 0, fmt.Errorf("Broken reader")
|
||||
}
|
||||
self.off += len(buf)
|
||||
return self.lr.Read(buf)
|
||||
}
|
||||
|
||||
func testDataReaderAndSlice(l int) (r io.Reader, slice []byte) {
|
||||
@ -60,7 +60,7 @@ func testDataReaderAndSlice(l int) (r io.Reader, slice []byte) {
|
||||
if _, err := rand.Read(slice); err != nil {
|
||||
panic("rand error")
|
||||
}
|
||||
r = limitReader(bytes.NewReader(slice), l)
|
||||
r = io.LimitReader(bytes.NewReader(slice), int64(l))
|
||||
return
|
||||
}
|
||||
|
||||
|
||||
@ -81,7 +81,6 @@ func (self *PyramidChunker) Split(data io.Reader, size int64, chunkC chan *Chunk
|
||||
|
||||
chunks := (size + self.chunkSize - 1) / self.chunkSize
|
||||
depth := int(math.Ceil(math.Log(float64(chunks))/math.Log(float64(self.branches)))) + 1
|
||||
// glog.V(logger.Detail).Infof("chunks: %v, depth: %v", chunks, depth)
|
||||
|
||||
results := Tree{
|
||||
Chunks: chunks,
|
||||
@ -99,26 +98,24 @@ func (self *PyramidChunker) Split(data io.Reader, size int64, chunkC chan *Chunk
|
||||
go self.processor(pend, swg, tasks, chunkC, &results)
|
||||
}
|
||||
// Feed the chunks into the task pool
|
||||
read := 0
|
||||
for index := 0; ; index++ {
|
||||
buffer := make([]byte, self.chunkSize+8)
|
||||
n, err := data.Read(buffer[8:])
|
||||
last := err == io.ErrUnexpectedEOF || err == io.EOF
|
||||
// glog.V(logger.Detail).Infof("n: %v, index: %v, depth: %v", n, index, depth)
|
||||
read += n
|
||||
last := int64(read) == size || err == io.ErrUnexpectedEOF || err == io.EOF
|
||||
if err != nil && !last {
|
||||
// glog.V(logger.Info).Infof("error: %v", err)
|
||||
close(abortC)
|
||||
break
|
||||
}
|
||||
binary.LittleEndian.PutUint64(buffer[:8], uint64(n))
|
||||
pend.Add(1)
|
||||
// glog.V(logger.Info).Infof("-> task %v (%v)", index, n)
|
||||
select {
|
||||
case tasks <- &Task{Index: int64(index), Size: uint64(n), Data: buffer[:n+8], Last: last}:
|
||||
case <-abortC:
|
||||
return nil, err
|
||||
}
|
||||
if last {
|
||||
// glog.V(logger.Info).Infof("last task %v (%v)", index, n)
|
||||
break
|
||||
}
|
||||
}
|
||||
@ -126,7 +123,6 @@ func (self *PyramidChunker) Split(data io.Reader, size int64, chunkC chan *Chunk
|
||||
close(tasks)
|
||||
pend.Wait()
|
||||
|
||||
// glog.V(logger.Info).Infof("len: %v", results.Levels[0][0])
|
||||
key := results.Levels[0][0].Children[0][:]
|
||||
return key, nil
|
||||
}
|
||||
@ -134,12 +130,10 @@ func (self *PyramidChunker) Split(data io.Reader, size int64, chunkC chan *Chunk
|
||||
func (self *PyramidChunker) processor(pend, swg *sync.WaitGroup, tasks chan *Task, chunkC chan *Chunk, results *Tree) {
|
||||
defer pend.Done()
|
||||
|
||||
// glog.V(logger.Info).Infof("processor started")
|
||||
// Start processing leaf chunks ad infinitum
|
||||
hasher := self.hashFunc()
|
||||
for task := range tasks {
|
||||
depth, pow := len(results.Levels)-1, self.branches
|
||||
// glog.V(logger.Info).Infof("task: %v, last: %v", task.Index, task.Last)
|
||||
size := task.Size
|
||||
data := task.Data
|
||||
var node *Node
|
||||
@ -171,10 +165,8 @@ func (self *PyramidChunker) processor(pend, swg *sync.WaitGroup, tasks chan *Tas
|
||||
}
|
||||
node = &Node{pending, 0, make([]common.Hash, pending), last}
|
||||
results.Levels[depth][task.Index/pow] = node
|
||||
// glog.V(logger.Info).Infof("create node %v, %v (%v children, all pending)", depth, task.Index/pow, pending)
|
||||
}
|
||||
node.Pending--
|
||||
// glog.V(logger.Info).Infof("pending now: %v", node.Pending)
|
||||
i := task.Index / (pow / self.branches) % self.branches
|
||||
if last {
|
||||
node.Last = true
|
||||
@ -182,7 +174,6 @@ func (self *PyramidChunker) processor(pend, swg *sync.WaitGroup, tasks chan *Tas
|
||||
copy(node.Children[i][:], hash)
|
||||
node.Size += size
|
||||
left := node.Pending
|
||||
// glog.V(logger.Info).Infof("left pending now: %v, node size: %v", left, node.Size)
|
||||
if chunkC != nil {
|
||||
if swg != nil {
|
||||
swg.Add(1)
|
||||
@ -198,7 +189,6 @@ func (self *PyramidChunker) processor(pend, swg *sync.WaitGroup, tasks chan *Tas
|
||||
|
||||
results.Lock.Unlock()
|
||||
// If there's more work to be done, leave for others
|
||||
// glog.V(logger.Info).Infof("left %v", left)
|
||||
if left > 0 {
|
||||
break
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user