-
Notifications
You must be signed in to change notification settings - Fork 0
/
multi_buffer.go
88 lines (75 loc) · 1.37 KB
/
multi_buffer.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
package buf
import (
"io"
"net"
)
type MultiBufferWriter interface {
WriteMultiBuffer(MultiBuffer) (int, error)
}
type MultiBufferReader interface {
ReadMultiBuffer() (MultiBuffer, error)
}
type MultiBuffer []*Buffer
func NewMultiBuffer() MultiBuffer {
return MultiBuffer(make([]*Buffer, 0, 128))
}
func NewMultiBufferValue(b ...*Buffer) MultiBuffer {
return MultiBuffer(b)
}
func (b *MultiBuffer) Append(buf *Buffer) {
*b = append(*b, buf)
}
func (b *MultiBuffer) AppendMulti(mb MultiBuffer) {
*b = append(*b, mb...)
}
func (mb *MultiBuffer) Read(b []byte) (int, error) {
if len(*mb) == 0 {
return 0, io.EOF
}
endIndex := len(*mb)
totalBytes := 0
for i, bb := range *mb {
nBytes, err := bb.Read(b)
totalBytes += nBytes
if err != nil {
return totalBytes, err
}
b = b[nBytes:]
if bb.IsEmpty() {
bb.Release()
} else {
endIndex = i
break
}
}
*mb = (*mb)[endIndex:]
return totalBytes, nil
}
func (mb MultiBuffer) Len() int {
size := 0
for _, b := range mb {
size += b.Len()
}
return size
}
func (mb MultiBuffer) IsEmpty() bool {
for _, b := range mb {
if !b.IsEmpty() {
return false
}
}
return true
}
func (mb MultiBuffer) Release() {
for i, b := range mb {
b.Release()
mb[i] = nil
}
}
func (mb MultiBuffer) ToNetBuffers() net.Buffers {
bs := make([][]byte, len(mb))
for i, b := range mb {
bs[i] = b.Bytes()
}
return bs
}