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Adding header version

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This commit is contained in:
Frederick F. Kautz IV 2015-02-18 10:18:24 -08:00
parent c212ae18bc
commit 05ac09bf69
1 changed files with 16 additions and 6 deletions
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22
pkg/storage/donut/donut.go
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@ -39,16 +39,26 @@ func (donut Donut) Write(header Header, object io.Reader) error {
return err
}
// write header length
var headerLengthBuffer bytes.Buffer
headerLength := headerBuffer.Len()
err = binary.Write(&headerLengthBuffer, binary.LittleEndian, headerLength)
// prefix consists of a version number and a length
var headerPrefixBuffer bytes.Buffer
// write version
var version int
version = 1
err = binary.Write(&headerPrefixBuffer, binary.LittleEndian, version)
if err != nil {
return err
}
// write header length
io.Copy(&newObjectBuffer, &headerLengthBuffer)
// write length
var headerLength int
headerLength = headerBuffer.Len()
err = binary.Write(&headerPrefixBuffer, binary.LittleEndian, headerLength)
if err != nil {
return err
}
// write header prefix
io.Copy(&newObjectBuffer, &headerPrefixBuffer)
// write header
io.Copy(&newObjectBuffer, &headerBuffer)