27 lines
447 B
Go
27 lines
447 B
Go
package local
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import (
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"io"
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"os"
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)
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// readerat implements io.ReaderAt in a completely stateless manner by opening
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// the referenced file for each call to ReadAt.
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type readerAt struct {
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f string
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}
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func (ra readerAt) ReadAt(p []byte, offset int64) (int, error) {
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fp, err := os.Open(ra.f)
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if err != nil {
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return 0, err
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}
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defer fp.Close()
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if _, err := fp.Seek(offset, io.SeekStart); err != nil {
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return 0, err
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}
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return fp.Read(p)
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}
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