rdb/constants.go at master · upstash/rdb · GitHub

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
package rdb

const Version uint16 = 12

type Type uint8

const (
	TypeString              Type = 0
	TypeList                Type = 1
	TypeSet                 Type = 2
	TypeZset                Type = 3
	TypeHash                Type = 4
	TypeZset2               Type = 5
	TypeModule2             Type = 7 // module pre ga with type 6 is not supported
	TypeHashZipmap          Type = 9 // type 8 seems unused by Redis
	TypeListZiplist         Type = 10
	TypeSetIntset           Type = 11
	TypeZsetZiplist         Type = 12
	TypeHashZiplist         Type = 13
	TypeListQuicklist       Type = 14
	TypeStreamListpacks     Type = 15
	TypeHashListpack        Type = 16
	TypeZsetListpack        Type = 17
	TypeListQuicklist2      Type = 18
	TypeStreamListpacks2    Type = 19
	TypeSetListpack         Type = 20
	TypeStreamListpacks3    Type = 21
	TypeHashMetadataPreGa   Type = 22 // pre-ga type is not supported
	TypeHashListpackExPreGa Type = 23 // pre-ga type is not supported.
	TypeHashMetadata        Type = 24
	TypeHashListpackEx      Type = 25
)

const (
	typeOpCodeFunction2     Type = 245
	typeOpCodeFunctionPreGA Type = 246
	typeOpCodeModuleAux     Type = 247
	typeOpCodeIdle          Type = 248
	typeOpCodeFreq          Type = 249
	typeOpCodeAux           Type = 250
	typeOpCodeResizeDB      Type = 251
	typeOpCodeExpireTimeMS  Type = 252
	typeOpCodeExpireTime    Type = 253
	typeOpCodeSelectDB      Type = 254
	typeOpCodeEOF           Type = 255
)

const (
	len6Bit         uint8 = 0b00000000
	len14Bit        uint8 = 0b01000000
	len32Or64Bit    uint8 = 0b10000000
	lenEncodedValue uint8 = 0b11000000
)

const (
	len32Bit uint8 = 0b10000000
	len64Bit uint8 = 0b10000001
)
const (
	len6BitMax  uint64 = 1<<6 - 1
	len14BitMax uint64 = 1<<14 - 1
	len32BitMax uint64 = 1<<32 - 1
)

const (
	lenEncodingInt8  uint64 = 0
	lenEncodingInt16 uint64 = 1
	lenEncodingInt32 uint64 = 2
	lenEncodingLZF   uint64 = 3
)

const (
	zipmapLenBig uint8 = 254
	zipmapLenEnd uint8 = 255
	zipmapEnd    uint8 = 255
)

const (
	ziplistEnd        uint8  = 255
	ziplistLenBig     uint16 = 65535
	ziplistPrevLenBig uint8  = 254
)

const (
	ziplistEnc6BitStrLen  uint8 = 0b00000000
	ziplistEnc14BitStrLen uint8 = 0b01000000
	ziplistEnc32BitStrLen uint8 = 0b10000000
)

const (
	ziplistEncInt8  uint8 = 0b11111110
	ziplistEncInt16 uint8 = 0b11000000
	ziplistEncInt24 uint8 = 0b11110000
	ziplistEncInt32 uint8 = 0b11010000
	ziplistEncInt64 uint8 = 0b11100000
)

const (
	intsetEncInt16 uint32 = 2
	intsetEncInt32 uint32 = 4
	intsetEncInt64 uint32 = 8
)

const (
	listpackEnd    uint8  = 255
	listpackLenBig uint16 = 65535
)

const (
	listpackEncUint7 uint8 = 0b00000000
	listpackEncInt13 uint8 = 0b11000000

	listpackEncInt16 uint8 = 0b11110001
	listpackEncInt24 uint8 = 0b11110010
	listpackEncInt32 uint8 = 0b11110011
	listpackEncInt64 uint8 = 0b11110100

	listpackEnc6bitStrLen  uint8 = 0b10000000
	listpackEnc12bitStrLen uint8 = 0b11100000
	listpackEnc32bitStrLen uint8 = 0b11110000
)

const (
	quicklist2NodePlain  uint64 = 1
	quicklist2NodePacked uint64 = 2
)

const (
	moduleOpCodeEOF    uint64 = 0
	moduleOpCodeSInt   uint64 = 1
	moduleOpCodeUInt   uint64 = 2
	moduleOpCodeFloat  uint64 = 3
	moduleOpCodeDouble uint64 = 4
	moduleOpCodeString uint64 = 5
)

const jsonModuleID uint64 = 5035677737576115200

const (
	jsonModuleV0 uint64 = 0
	jsonModuleV3 uint64 = 3
)

const (
	jsonModuleV0NodeNull    uint64 = 1
	jsonModuleV0NodeString  uint64 = 2
	jsonModuleV0NodeNumber  uint64 = 4
	jsonModuleV0NodeInteger uint64 = 8
	jsonModuleV0NodeBoolean uint64 = 16
	jsonModuleV0NodeDict    uint64 = 32
	jsonModuleV0NodeArray   uint64 = 64
	jsonModuleV0NodeKeyVal  uint64 = 128
)

type ModuleMarker string

const (
	EmptyModuleMarker ModuleMarker = ""
	JSONModuleMarker  ModuleMarker = "json"
)

const (
	streamItemFlagDeleted    int = 1
	streamItemFlagSameFields int = 2
)