feat: write pprof to file when daemon quit (#247)

pkg/config/config.go

@@ -85,6 +85,7 @@ const (
 	// pprof port
 	PProfPort     = 32345
 	SudoPProfPort = 33345
+	PProfDir      = "pprof"
 
 	// startup by KubeVPN
 	EnvStartSudoKubeVPNByKubeVPN = "DEPTH_SIGNED_BY_NAISON"
@@ -109,6 +110,7 @@ var (
 
 	DaemonPath string
 	HomePath   string
+	PprofPath  string
 )
 
 var (
@@ -129,6 +131,7 @@ func init() {
 	dir, _ := os.UserHomeDir()
 	DaemonPath = filepath.Join(dir, HOME, Daemon)
 	HomePath = filepath.Join(dir, HOME)
+	PprofPath = filepath.Join(dir, HOME, Daemon, PProfDir)
 }
 
 var Debug bool

pkg/config/const.go

@@ -29,11 +29,19 @@ const (
 var config []byte
 
 func init() {
-	err := os.MkdirAll(DaemonPath, os.ModePerm)
+	err := os.MkdirAll(DaemonPath, 0755)
 	if err != nil {
 		panic(err)
 	}
-	err = os.Chmod(DaemonPath, os.ModePerm)
+	err = os.Chmod(DaemonPath, 0755)
+	if err != nil {
+		panic(err)
+	}
+	err = os.MkdirAll(PprofPath, 0755)
+	if err != nil {
+		panic(err)
+	}
+	err = os.Chmod(PprofPath, 0755)
 	if err != nil {
 		panic(err)
 	}

pkg/daemon/daemon.go

@@ -215,10 +215,10 @@ func (o *SvrOption) detectUnixSocksFile(ctx context.Context) {
 func writePIDToFile(isSudo bool) error {
 	pidPath := GetPidPath(isSudo)
 	pid := os.Getpid()
-	err := os.WriteFile(pidPath, []byte(strconv.Itoa(pid)), os.ModePerm)
+	err := os.WriteFile(pidPath, []byte(strconv.Itoa(pid)), 0644)
 	if err != nil {
 		return err
 	}
-	err = os.Chmod(pidPath, os.ModePerm)
+	err = os.Chmod(pidPath, 0644)
 	return err
 }