readerutil

package

v0.0.0-...-c8ec3b5 Latest Latest Go to latest Published: Jan 14, 2016 License: Apache-2.0 Imports: 6 Imported by: 0

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Package readerutil provides and operates on io.Readers.

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func OpenSingle(path string) (types.ReaderAtCloser, error)

OpenSingle opens the given file path for reading, reusing existing file descriptors when possible.

func ReaderSize(r io.Reader) (size int64, ok bool)

ReaderSize tries to determine the length of r.

type CountingReader struct {
	Reader io.Reader
	N      *int64
}

CountingReader wraps a Reader, incrementing N by the number of bytes read. No locking is performed.

func (cr CountingReader) Read(p []byte) (n int, err error)