go-sandbox/daemon/socket.go
2019-09-28 17:43:05 -07:00

45 lines
1009 B
Go

package daemon
import (
"bytes"
"encoding/gob"
"fmt"
"github.com/criyle/go-sandbox/pkg/unixsocket"
)
type socket unixsocket.Socket
func (s *socket) RecvMsg(e interface{}) (*unixsocket.Msg, error) {
soc := (*unixsocket.Socket)(s)
buff := GetBuffer()
defer PutBuffer(buff)
n, msg, err := soc.RecvMsg(buff)
if err != nil {
return nil, fmt.Errorf("RecvMsg: %v", err)
}
if err := gob.NewDecoder(bytes.NewReader(buff[:n])).Decode(e); err != nil {
return nil, fmt.Errorf("RecvMsg: failed to decode %v", err)
}
return msg, nil
}
func (s *socket) SendMsg(e interface{}, msg *unixsocket.Msg) error {
soc := (*unixsocket.Socket)(s)
buf := GetBuffer()
defer PutBuffer(buf)
// use buf pool to reduce allocation
buff := bytes.NewBuffer(buf[:0])
if err := gob.NewEncoder(buff).Encode(e); err != nil {
return fmt.Errorf("SendMsg: failed to encode %v", err)
}
if err := soc.SendMsg(buff.Bytes(), msg); err != nil {
return fmt.Errorf("SendMsg: failed to SendMsg %v", err)
}
return nil
}