forked from gocircuit/circuit
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gob.go
94 lines (76 loc) · 1.47 KB
/
gob.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
// Copyright 2013 The Go Circuit Project
// Use of this source code is governed by the license for
// The Go Circuit Project, found in the LICENSE file.
//
// Authors:
// 2013 Petar Maymounkov <p@gocircuit.org>
package codec
import (
"bytes"
"encoding/gob"
)
// GobCodec
type GobCodec struct{}
func (GobCodec) NewEncoder() Encoder {
return NewGobEncoder()
}
func (GobCodec) NewDecoder() Decoder {
return NewGobDecoder()
}
// GobEncoder
type GobEncoder struct {
w writer
enc *gob.Encoder
}
func NewGobEncoder() *GobEncoder {
g := &GobEncoder{}
g.w.Clear()
g.enc = gob.NewEncoder(&g.w)
return g
}
func (g *GobEncoder) Encode(v interface{}) ([]byte, error) {
if err := g.enc.Encode(v); err != nil {
return nil, err
}
return g.w.Flush(), nil
}
// GobDecoder
type GobDecoder struct {
r reader
dec *gob.Decoder
}
func NewGobDecoder() *GobDecoder {
g := &GobDecoder{}
g.dec = gob.NewDecoder(&g.r)
return g
}
func (g *GobDecoder) Decode(p []byte, v interface{}) error {
g.r.Load(p)
return g.dec.Decode(v)
}
//
type writer struct {
buf *bytes.Buffer
}
func (w *writer) Clear() {
w.buf = new(bytes.Buffer)
}
func (w *writer) Write(p []byte) (int, error) {
return w.buf.Write(p)
}
func (w *writer) Flush() []byte {
defer func() {
w.buf = new(bytes.Buffer)
}()
return w.buf.Bytes()
}
//
type reader struct {
buf *bytes.Reader
}
func (r *reader) Load(p []byte) {
r.buf = bytes.NewReader(p)
}
func (r *reader) Read(p []byte) (int, error) {
return r.buf.Read(p)
}