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gogueconn.go
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/
gogueconn.go
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// Copyright 2015 SeukWon Kang (kasworld@gmail.com)
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gogueconn
import (
"encoding/gob"
"encoding/json"
"errors"
"fmt"
"net"
"github.com/kasworld/log"
)
var PK_type = PT_gob
const (
PT_gob = uint8(iota)
PT_json
)
type IDecoder interface {
Decode(v interface{}) error
}
type IEncoder interface {
Encode(v interface{}) error
}
type GogueConn struct {
conn net.Conn
packettype uint8
enc IEncoder
dec IDecoder
}
func New(conn net.Conn) *GogueConn {
c := GogueConn{
conn: conn,
packettype: PK_type,
}
switch c.packettype {
default:
return nil
case PT_gob:
c.dec = gob.NewDecoder(c.conn)
c.enc = gob.NewEncoder(c.conn)
case PT_json:
c.dec = json.NewDecoder(c.conn)
c.enc = json.NewEncoder(c.conn)
}
return &c
}
func (c *GogueConn) Send(v interface{}) (err error) {
defer func() {
if e := recover(); e != nil {
log.Error("Connection error %v", e)
err = errors.New(fmt.Sprintf("%v", e))
}
}()
switch c.packettype {
default:
return errors.New("Unknown packet type")
case PT_gob:
err = c.enc.Encode(v)
case PT_json:
err = c.enc.Encode(v)
}
return
}
func (c *GogueConn) Recv(v interface{}) (err error) {
switch c.packettype {
default:
return errors.New("Unknown packet type")
case PT_gob:
err = c.dec.Decode(v)
case PT_json:
err = c.dec.Decode(v)
}
return
}
func (c *GogueConn) Close() {
c.conn.Close()
}