-
Notifications
You must be signed in to change notification settings - Fork 95
/
main.go
158 lines (136 loc) · 4.61 KB
/
main.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
package main
import "C"
import (
"os"
"unsafe"
"encoding/binary"
"fmt"
bpf "github.com/aquasecurity/libbpfgo"
)
func main() {
bpfModule, err := bpf.NewModuleFromFile("main.bpf.o")
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(-1)
}
defer bpfModule.Close()
bpfModule.BPFLoadObject()
testerMap, err := bpfModule.GetMap("tester")
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(-1)
}
keys := []uint32{1, 2, 3, 4, 5, 6, 8}
values := []uint32{2, 3, 4, 5, 6, 7, 9}
// Test batch update.
if err := testerMap.UpdateBatch(unsafe.Pointer(&keys[0]), unsafe.Pointer(&values[0]), uint32(len(keys))); err != nil {
fmt.Fprintf(os.Stderr, "testerMap.UpdateBatch failed: %v", err)
os.Exit(-1)
}
val, err := testerMap.GetValue(unsafe.Pointer(&keys[0]))
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.GetValue failed: %v", err)
os.Exit(-1)
}
if binary.LittleEndian.Uint32(val) != values[0] {
fmt.Fprintf(os.Stderr, "testerMap.GetValue returned %v, expected %v", val, values[0])
os.Exit(-1)
}
// Test batch lookup in steps.
batchKeys := make([]uint32, 3)
nextKey := uint32(0)
prevKey := unsafe.Pointer(nil)
step := len(batchKeys)
for i := 0; i < 2; i++ {
if i > 0 {
// We're on step 2, so test the batch lookup by specifying the
// key to start from.
prevKey = unsafe.Pointer(&nextKey)
}
vals, err := testerMap.GetValueBatch(unsafe.Pointer(&batchKeys[0]), prevKey, unsafe.Pointer(&nextKey), uint32(step))
if err != nil {
fmt.Fprintf(os.Stderr, "step %d testerMap.LookupBatch failed: %v", i, err)
os.Exit(-1)
}
for i, val := range vals {
actual := binary.LittleEndian.Uint32(val)
expected := batchKeys[i] + 1
if actual != expected {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch returned %v, expected %v", actual, expected)
os.Exit(-1)
}
}
}
// Test batch get value with more elements than we have.
_, err = testerMap.GetValueBatch(unsafe.Pointer(&batchKeys[0]), prevKey, unsafe.Pointer(&nextKey), uint32(len(batchKeys))+100)
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.GetValueBatch failed: %v", err)
os.Exit(-1)
}
// Test batch lookup and delete.
deleteKeys := make([]uint32, 2)
nextKey = uint32(0)
requestedCount := len(deleteKeys)
vals, err := testerMap.GetValueAndDeleteBatch(unsafe.Pointer(&deleteKeys[0]), nil, unsafe.Pointer(&nextKey), uint32(requestedCount))
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch failed: %v", err)
os.Exit(-1)
}
processedCount := len(vals)
if requestedCount != processedCount {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch failed: %d!=%d", requestedCount, processedCount)
os.Exit(-1)
}
for i, val := range vals {
actual := binary.LittleEndian.Uint32(val)
expected := deleteKeys[i] + 1
if actual != expected {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch returned %v, expected %v", actual, expected)
os.Exit(-1)
}
}
if err := testerMap.UpdateBatch(unsafe.Pointer(&keys[0]), unsafe.Pointer(&values[0]), uint32(len(keys))); err != nil {
fmt.Fprintf(os.Stderr, "testerMap.UpdateBatch failed: %v", err)
os.Exit(-1)
}
// Test batch delete.
// Trying to delete more keys than we have.
err = testerMap.DeleteKeyBatch(unsafe.Pointer(&keys[0]), uint32(len(keys)+100))
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.DeleteKeyBatch was expected to not fail")
os.Exit(-1)
}
// Ensure value is no longer there.
_, err = testerMap.GetValue(unsafe.Pointer(&keys[0]))
if err == nil {
fmt.Fprintf(os.Stderr, "testerMap.GetValue was expected to fail, but succeeded")
os.Exit(-1)
}
// Re-add deleted entries.
if err := testerMap.UpdateBatch(unsafe.Pointer(&keys[0]), unsafe.Pointer(&values[0]), uint32(len(keys))); err != nil {
fmt.Fprintf(os.Stderr, "testerMap.UpdateBatch failed: %v", err)
os.Exit(-1)
}
// Test batch delete.
// Trying to delete fewer or equal keys than we have.
err = testerMap.DeleteKeyBatch(unsafe.Pointer(&keys[0]), uint32(len(keys)-1))
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.DeleteKeyBatch was expected to not fail")
os.Exit(-1)
}
// Test batch lookup and delete when requesting more elements than are in the map.
deleteKeys = make([]uint32, 3)
nextKey = uint32(0)
requestedCount = 5
vals, err = testerMap.GetValueAndDeleteBatch(unsafe.Pointer(&deleteKeys[0]), nil, unsafe.Pointer(&nextKey), uint32(requestedCount))
if err != nil {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch failed: %v", err)
os.Exit(-1)
}
processedCount = len(vals)
// We removed all but one element in the test case before.
if processedCount != 1 {
fmt.Fprintf(os.Stderr, "testerMap.LookupBatch failed: processedCount=%d", processedCount)
os.Exit(-1)
}
}