-
Notifications
You must be signed in to change notification settings - Fork 669
/
prefixed_state.go
130 lines (92 loc) · 3.06 KB
/
prefixed_state.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
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package queue
import (
"github.com/ava-labs/avalanchego/database"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/utils/hashing"
"github.com/ava-labs/avalanchego/utils/wrappers"
)
// Constants
const (
stackSizeID byte = iota
stackID
jobID
blockingID
)
var (
stackSize = []byte{stackSizeID}
)
type prefixedState struct{ state }
func (ps *prefixedState) SetStackSize(db database.Database, size uint32) error {
return ps.state.SetInt(db, stackSize, size)
}
func (ps *prefixedState) StackSize(db database.Database) (uint32, error) {
return ps.state.Int(db, stackSize)
}
func (ps *prefixedState) SetStackIndex(db database.Database, index uint32, job Job) error {
p := wrappers.Packer{Bytes: make([]byte, 1+wrappers.IntLen)}
p.PackByte(stackID)
p.PackInt(index)
return ps.state.SetJob(db, p.Bytes, job)
}
func (ps *prefixedState) DeleteStackIndex(db database.Database, index uint32) error {
p := wrappers.Packer{Bytes: make([]byte, 1+wrappers.IntLen)}
p.PackByte(stackID)
p.PackInt(index)
return db.Delete(p.Bytes)
}
func (ps *prefixedState) StackIndex(db database.Database, index uint32) (Job, error) {
p := wrappers.Packer{Bytes: make([]byte, 1+wrappers.IntLen)}
p.PackByte(stackID)
p.PackInt(index)
return ps.state.Job(db, p.Bytes)
}
func (ps *prefixedState) SetJob(db database.Database, job Job) error {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(jobID)
id := job.ID()
p.PackFixedBytes(id[:])
return ps.state.SetJob(db, p.Bytes, job)
}
func (ps *prefixedState) HasJob(db database.Database, id ids.ID) (bool, error) {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(jobID)
p.PackFixedBytes(id[:])
return db.Has(p.Bytes)
}
func (ps *prefixedState) DeleteJob(db database.Database, id ids.ID) error {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(jobID)
p.PackFixedBytes(id[:])
return db.Delete(p.Bytes)
}
func (ps *prefixedState) Job(db database.Database, id ids.ID) (Job, error) {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(jobID)
p.PackFixedBytes(id[:])
return ps.state.Job(db, p.Bytes)
}
func (ps *prefixedState) AddBlocking(db database.Database, id ids.ID, blocking ids.ID) error {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(blockingID)
p.PackFixedBytes(id[:])
return ps.state.AddID(db, p.Bytes, blocking)
}
func (ps *prefixedState) DeleteBlocking(db database.Database, id ids.ID, blocking []ids.ID) error {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(blockingID)
p.PackFixedBytes(id[:])
for _, blocked := range blocking {
if err := ps.state.RemoveID(db, p.Bytes, blocked); err != nil {
return err
}
}
return nil
}
func (ps *prefixedState) Blocking(db database.Database, id ids.ID) ([]ids.ID, error) {
p := wrappers.Packer{Bytes: make([]byte, 1+hashing.HashLen)}
p.PackByte(blockingID)
p.PackFixedBytes(id[:])
return ps.state.IDs(db, p.Bytes)
}