30 lines
534 B
Go
30 lines
534 B
Go
package nullreader
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import (
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"io"
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"github.com/filecoin-project/go-state-types/abi"
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)
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type NullReader struct {
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*io.LimitedReader
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}
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func NewNullReader(size abi.UnpaddedPieceSize) io.Reader {
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return &NullReader{(io.LimitReader(&Reader{}, int64(size))).(*io.LimitedReader)}
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}
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func (m NullReader) NullBytes() int64 {
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return m.N
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}
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// TODO: extract this to someplace where it can be shared with lotus
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type Reader struct{}
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func (Reader) Read(out []byte) (int, error) {
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for i := range out {
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out[i] = 0
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}
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return len(out), nil
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}
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