-
Notifications
You must be signed in to change notification settings - Fork 0
/
process.go
66 lines (60 loc) · 1.38 KB
/
process.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
package gosupport
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
"errors"
)
//对pid文件的操作
type PIDFile struct {
//pid文件
pidFile string
}
//创建pid文件,存在pid文件则写失败, pid=os.Getpid()
func (f PIDFile) CreatePidFile(pid int) error {
path := filepath.Dir(f.pidFile)
//判断目录是否存在
if IsDir(path) == false {
if err := os.MkdirAll(path, os.FileMode(0755)); err != nil {
return err
}
}
if IsFile(f.pidFile) == true {
return errors.New(fmt.Sprintf("pid文件%s已经存在", f.pidFile))
}
if err := ioutil.WriteFile(f.pidFile, []byte(fmt.Sprintf("%d", pid)), 0644); err != nil {
return err
}
return nil
}
//移除pid文件
func (f PIDFile) Remove() error {
return os.Remove(f.pidFile)
}
func (f PIDFile) GetPid() (int, error) {
if pid,err := FileGetContents(f.pidFile);err == nil {
pid = strings.TrimSpace(pid)
return strconv.Atoi(pid)
} else {
return 0, err
}
}
/*
调用示例:
pidFile := "/data/www/go-community-service/go-community-service.pid"
pidFileObj := gosupport.NewPIDFile(pidFile)
err := pidFileObj.CreatePidFile(os.Getpid())
if err !=nil {
fmt.Println(err.Error())
}
pid2,_ := pidFileObj.GetPid()
fmt.Println("pidfile=", pidFile, "pid=", pid2)
pidFileObj.Remove()
*/
func NewPIDFile(pidfile string) *PIDFile {
pidfile = strings.TrimSpace(pidfile)
return &PIDFile{pidFile: pidfile}
}