rclone/lib/readers/limited.go
2018-01-22 19:44:55 +00:00

23 lines
574 B
Go

package readers
import "io"
// LimitedReadCloser adds io.Closer to io.LimitedReader. Create one with NewLimitedReadCloser
type LimitedReadCloser struct {
*io.LimitedReader
io.Closer
}
// NewLimitedReadCloser returns a LimitedReadCloser wrapping rc to
// limit it to reading limit bytes. If limit == 0 then it does not
// wrap rc, it just returns it.
func NewLimitedReadCloser(rc io.ReadCloser, limit int64) (lrc io.ReadCloser) {
if limit == 0 {
return rc
}
return &LimitedReadCloser{
LimitedReader: &io.LimitedReader{R: rc, N: limit},
Closer: rc,
}
}