ReadAt may return io.EOF t end of file
related to https://github.com/seaweedfs/seaweedfs/issues/6219
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@@ -15,9 +15,11 @@ import (
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func ReadSuperBlock(datBackend backend.BackendStorageFile) (superBlock SuperBlock, err error) {
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header := make([]byte, SuperBlockSize)
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if _, e := datBackend.ReadAt(header, 0); e != nil {
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err = fmt.Errorf("cannot read volume %s super block: %v", datBackend.Name(), e)
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return
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if n, e := datBackend.ReadAt(header, 0); e != nil {
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if n != SuperBlockSize {
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err = fmt.Errorf("cannot read volume %s super block: %v", datBackend.Name(), e)
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return
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}
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}
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superBlock.Version = needle.Version(header[0])
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