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gobber.go
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/
gobber.go
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package gobber
import (
"bytes"
"encoding/binary"
"encoding/gob"
"io"
)
type GobReader struct {
reader io.Reader
}
type GobWriter struct {
writer io.Writer
}
func NewGobReaderIO(r io.Reader) *GobReader {
return &GobReader{reader: r}
}
func (gr *GobReader) Read(p interface{}) error {
var length int64
err := binary.Read(gr.reader, binary.LittleEndian, &length)
if err != nil {
return err
}
buf := make([]byte, length)
if _, err = io.ReadFull(gr.reader, buf); err != nil {
println("Warning - Binary file reader crashed. Run `tzap reset` or submit a bug report if error persists.")
return err
}
bReader := bytes.NewReader(buf)
decoder := gob.NewDecoder(bReader)
if err := decoder.Decode(p); err != nil {
println("Warning - Binary file reader crashed. Run `tzap reset` or submit a bug report if error persists.")
return err
}
return nil
}
func NewGobWriterIO(w io.Writer) *GobWriter {
return &GobWriter{writer: w}
}
func (gw *GobWriter) Write(p interface{}) error {
var buf bytes.Buffer
encoder := gob.NewEncoder(&buf)
err := encoder.Encode(p)
if err != nil {
return err
}
// Write the length of the buffer
err = binary.Write(gw.writer, binary.LittleEndian, int64(buf.Len()))
if err != nil {
return err
}
// Write the buffer itself
_, err = gw.writer.Write(buf.Bytes())
return err
}