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
|
package roadrunner
import (
"fmt"
"os"
json "github.com/json-iterator/go"
"github.com/spiral/goridge/v2"
)
var j = json.ConfigCompatibleWithStandardLibrary
type stopCommand struct {
Stop bool `json:"stop"`
}
type pidCommand struct {
Pid int `json:"pid"`
}
func sendControl(rl goridge.Relay, v interface{}) error {
if data, ok := v.([]byte); ok {
return rl.Send(data, goridge.PayloadControl|goridge.PayloadRaw)
}
data, err := j.Marshal(v)
if err != nil {
return fmt.Errorf("invalid payload: %s", err)
}
return rl.Send(data, goridge.PayloadControl)
}
func fetchPID(rl goridge.Relay) (int64, error) {
err := sendControl(rl, pidCommand{Pid: os.Getpid()})
if err != nil {
return 0, err
}
body, p, err := rl.Receive()
if err != nil {
return 0, err
}
if !p.HasFlag(goridge.PayloadControl) {
return 0, fmt.Errorf("unexpected response, header is missing")
}
link := &pidCommand{}
if err := json.Unmarshal(body, link); err != nil {
return 0, err
}
return int64(link.Pid), nil
}
|
