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use ReadAt instead of Read to avoid seek

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This commit is contained in:
zelig 2015-01-14 01:22:14 +00:00
parent aa90c6ff7d
commit f41c06d66d
1 changed files with 1 additions and 2 deletions
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3
bzz/chunker.go
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@ -120,7 +120,7 @@ func (self *Chunk) String() string {
if self.Data != nil { if self.Data != nil {
size = self.Data.Size() size = self.Data.Size()
slice = make([]byte, size) slice = make([]byte, size)
self.Data.Read(slice) self.Data.ReadAt(slice, 0)
} }
return fmt.Sprintf("Key: [%x..] TreeSize: %v Chunksize: %v Data: %x\n", self.Key[:4], self.Size, size, slice) return fmt.Sprintf("Key: [%x..] TreeSize: %v Chunksize: %v Data: %x\n", self.Key[:4], self.Size, size, slice)
} }
@ -370,7 +370,6 @@ func (self *TreeChunker) join(depth int, treeSize int64, key Key, chunkC chan *C
// create partial Chunk in order to send a retrieval request // create partial Chunk in order to send a retrieval request
childKey = make([]byte, self.hashSize) // preallocate hashSize long slice for key childKey = make([]byte, self.hashSize) // preallocate hashSize long slice for key
// read the Hash of the subtree from the relevant section of the Chunk into the allocated byte slice in subtree.Key // read the Hash of the subtree from the relevant section of the Chunk into the allocated byte slice in subtree.Key
chunk.Data.Seek(0, 0)
if _, err := chunk.Data.ReadAt(childKey, i*self.hashSize); err != nil { if _, err := chunk.Data.ReadAt(childKey, i*self.hashSize); err != nil {
dpaLogger.DebugDetailf("Read error: %v", err) dpaLogger.DebugDetailf("Read error: %v", err)
errC <- err errC <- err