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@@ -14,6 +14,15 @@ func NewReadCloserLen(rc io.ReadCloser, len int64) IReadCloserLen {
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return &readCloserLen{rc, len}
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}
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+func ReadCloserLenFromFile(f *os.File) (IReadCloserLen, error) {
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+ fi, err := f.Stat()
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+ if err != nil {
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+ return nil, err
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+ }
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+ res := NewReadCloserLen(f, fi.Size())
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+ return res, nil
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+}
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+
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type readCloserLen struct {
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io.ReadCloser
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size int64
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