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47 lines
925 B
47 lines
925 B
package buf
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import "io"
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// BufferToBytesWriter is a Writer that writes alloc.Buffer into underlying writer.
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type BufferToBytesWriter struct {
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writer io.Writer
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}
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// Write implements Writer.Write(). Write() takes ownership of the given buffer.
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func (v *BufferToBytesWriter) Write(buffer *Buffer) error {
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defer buffer.Release()
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for {
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nBytes, err := v.writer.Write(buffer.Bytes())
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if err != nil {
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return err
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}
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if nBytes == buffer.Len() {
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break
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}
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buffer.SliceFrom(nBytes)
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}
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return nil
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}
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type bytesToBufferWriter struct {
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writer Writer
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}
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func (v *bytesToBufferWriter) Write(payload []byte) (int, error) {
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bytesWritten := 0
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size := len(payload)
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for size > 0 {
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buffer := New()
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nBytes, _ := buffer.Write(payload)
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size -= nBytes
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payload = payload[nBytes:]
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bytesWritten += nBytes
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err := v.writer.Write(buffer)
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if err != nil {
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return bytesWritten, err
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}
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}
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return bytesWritten, nil
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}
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