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Posix CreateFile should work for compressed lengths (#7584)

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This commit is contained in:
Praveen raj Mani
2019-05-01 04:57:31 +05:30
committed by kannappanr
parent a436f2baa5
commit c113d4e49c
6 changed files with 61 additions and 75 deletions
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15
cmd/bitrot-whole.go
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@@ -31,19 +31,9 @@ type wholeBitrotWriter struct {
filePath string
shardSize int64 // This is the shard size of the erasure logic
hash.Hash // For bitrot hash
// Following two fields are used only to make sure that Write(p) is called such that
// len(p) is always the block size except the last block and prevent programmer errors.
currentBlockIdx int
lastBlockIdx int
}
func (b *wholeBitrotWriter) Write(p []byte) (int, error) {
if b.currentBlockIdx < b.lastBlockIdx && int64(len(p)) != b.shardSize {
// All blocks except last should be of the length b.shardSize
logger.LogIf(context.Background(), errUnexpected)
return 0, errUnexpected
}
err := b.disk.AppendFile(b.volume, b.filePath, p)
if err != nil {
logger.LogIf(context.Background(), err)
@@ -54,7 +44,6 @@ func (b *wholeBitrotWriter) Write(p []byte) (int, error) {
logger.LogIf(context.Background(), err)
return 0, err
}
b.currentBlockIdx++
return len(p), nil
}
@@ -63,8 +52,8 @@ func (b *wholeBitrotWriter) Close() error {
}
// Returns whole-file bitrot writer.
func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, length int64, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {
return &wholeBitrotWriter{disk, volume, filePath, shardSize, algo.New(), 0, int(length / shardSize)}
func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {
return &wholeBitrotWriter{disk, volume, filePath, shardSize, algo.New()}
}
// Implementation to verify bitrot for the whole file.