feat(go): add load simulator hold mode

go/vehicle-gateway/internal/loadsim/config.go

@@ -24,6 +24,7 @@ type Config struct {
 	SendInterval         time.Duration
 	Duration             time.Duration
 	Template             string
+	SendFrames           bool
 }
 
 type FlagConfig struct {
@@ -34,6 +35,7 @@ type FlagConfig struct {
 	sendInterval time.Duration
 	duration     time.Duration
 	template     string
+	sendFrames   bool
 }
 
 func RegisterFlags(fs *flag.FlagSet) *FlagConfig {
@@ -45,6 +47,7 @@ func RegisterFlags(fs *flag.FlagSet) *FlagConfig {
 	fs.DurationVar(&cfg.sendInterval, "send-interval", 10*time.Second, "frame send interval per connection")
 	fs.DurationVar(&cfg.duration, "duration", 10*time.Minute, "load test duration")
 	fs.StringVar(&cfg.template, "template", "", "frame template name")
+	fs.BoolVar(&cfg.sendFrames, "send", true, "send protocol frames while connections are open")
 	return cfg
 }
 
@@ -78,5 +81,6 @@ func (c *FlagConfig) Build() (Config, error) {
 		SendInterval:         c.sendInterval,
 		Duration:             c.duration,
 		Template:             strings.TrimSpace(c.template),
+		SendFrames:           c.sendFrames,
 	}, nil
 }