-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathbinary.go
237 lines (191 loc) · 4.83 KB
/
binary.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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
package kbutils
import (
"encoding/binary"
"io"
"math"
)
const (
MaxVarintLen16 = binary.MaxVarintLen16
MaxVarintLen32 = binary.MaxVarintLen32
MaxVarintLen64 = binary.MaxVarintLen64
)
// GetUint16LE 获取u16 little endian
func GetUint16LE(b []byte) uint16 {
return binary.LittleEndian.Uint16(b)
}
// PutUint16LE 设置u16 little endian
func PutUint16LE(b []byte, v uint16) {
binary.LittleEndian.PutUint16(b, v)
}
// GetUint16BE 设获取u16 big endian
func GetUint16BE(b []byte) uint16 {
return binary.BigEndian.Uint16(b)
}
// PutUint16BE 设置u16 big endian
func PutUint16BE(b []byte, v uint16) {
binary.BigEndian.PutUint16(b, v)
}
// GetUint24LE 获取u24 little endian
func GetUint24LE(b []byte) uint32 {
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16
}
func PutUint24LE(b []byte, v uint32) {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
}
func GetUint24BE(b []byte) uint32 {
return uint32(b[2]) | uint32(b[1])<<8 | uint32(b[0])<<16
}
func PutUint24BE(b []byte, v uint32) {
b[0] = byte(v >> 16)
b[1] = byte(v >> 8)
b[2] = byte(v)
}
func GetUint32LE(b []byte) uint32 {
return binary.LittleEndian.Uint32(b)
}
func PutUint32LE(b []byte, v uint32) {
binary.LittleEndian.PutUint32(b, v)
}
func GetUint32BE(b []byte) uint32 {
return binary.BigEndian.Uint32(b)
}
func PutUint32BE(b []byte, v uint32) {
binary.BigEndian.PutUint32(b, v)
}
func GetUint40LE(b []byte) uint64 {
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32
}
func PutUint40LE(b []byte, v uint64) {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
}
func GetUint40BE(b []byte) uint64 {
return uint64(b[4]) | uint64(b[3])<<8 | uint64(b[2])<<16 | uint64(b[1])<<24 | uint64(b[0])<<32
}
func PutUint40BE(b []byte, v uint64) {
b[0] = byte(v >> 32)
b[1] = byte(v >> 24)
b[2] = byte(v >> 16)
b[3] = byte(v >> 8)
b[4] = byte(v)
}
func GetUint48LE(b []byte) uint64 {
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40
}
func PutUint48LE(b []byte, v uint64) {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
}
func GetUint48BE(b []byte) uint64 {
return uint64(b[5]) | uint64(b[4])<<8 | uint64(b[3])<<16 | uint64(b[2])<<24 | uint64(b[1])<<32 | uint64(b[0])<<40
}
func PutUint48BE(b []byte, v uint64) {
b[0] = byte(v >> 40)
b[1] = byte(v >> 32)
b[2] = byte(v >> 24)
b[3] = byte(v >> 16)
b[4] = byte(v >> 8)
b[5] = byte(v)
}
func GetUint56LE(b []byte) uint64 {
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48
}
func PutUint56LE(b []byte, v uint64) {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
b[6] = byte(v >> 48)
}
func GetUint56BE(b []byte) uint64 {
return uint64(b[6]) | uint64(b[5])<<8 | uint64(b[4])<<16 | uint64(b[3])<<24 | uint64(b[2])<<32 | uint64(b[1])<<40 | uint64(b[0])<<48
}
func PutUint56BE(b []byte, v uint64) {
b[0] = byte(v >> 48)
b[1] = byte(v >> 40)
b[2] = byte(v >> 32)
b[3] = byte(v >> 24)
b[4] = byte(v >> 16)
b[5] = byte(v >> 8)
b[6] = byte(v)
}
func GetUint64LE(b []byte) uint64 {
return binary.LittleEndian.Uint64(b)
}
func PutUint64LE(b []byte, v uint64) {
binary.LittleEndian.PutUint64(b, v)
}
func GetUint64BE(b []byte) uint64 {
return binary.BigEndian.Uint64(b)
}
func PutUint64BE(b []byte, v uint64) {
binary.BigEndian.PutUint64(b, v)
}
func GetFloat32BE(b []byte) float32 {
return math.Float32frombits(GetUint32BE(b))
}
func PutFloat32BE(b []byte, v float32) {
PutUint32BE(b, math.Float32bits(v))
}
func GetFloat32LE(b []byte) float32 {
return math.Float32frombits(GetUint32LE(b))
}
func PutFloat32LE(b []byte, v float32) {
PutUint32LE(b, math.Float32bits(v))
}
func GetFloat64BE(b []byte) float64 {
return math.Float64frombits(GetUint64BE(b))
}
func PutFloat64BE(b []byte, v float64) {
PutUint64BE(b, math.Float64bits(v))
}
func GetFloat64LE(b []byte) float64 {
return math.Float64frombits(GetUint64LE(b))
}
func PutFloat64LE(b []byte, v float64) {
PutUint64LE(b, math.Float64bits(v))
}
func UvarintSize(x uint64) int {
i := 0
for x >= 0x80 {
x >>= 7
i++
}
return i + 1
}
func VarintSize(x int64) int {
ux := uint64(x) << 1
if x < 0 {
ux = ^ux
}
return UvarintSize(ux)
}
func GetUvarint(b []byte) (uint64, int) {
return binary.Uvarint(b)
}
func PutUvarint(b []byte, v uint64) int {
return binary.PutUvarint(b, v)
}
func GetVarint(b []byte) (int64, int) {
return binary.Varint(b)
}
func PutVarint(b []byte, v int64) int {
return binary.PutVarint(b, v)
}
func ReadUvarint(r io.ByteReader) (uint64, error) {
return binary.ReadUvarint(r)
}
func ReadVarint(r io.ByteReader) (int64, error) {
return binary.ReadVarint(r)
}