chore: align tickers

charger/ocpp/connector.go

@@ -111,8 +111,7 @@ func (conn *Connector) GetScheduleLimit(duration int) (float64, error) {
 // WatchDog triggers meter values messages if older than timeout.
 // Must be wrapped in a goroutine.
 func (conn *Connector) WatchDog(ctx context.Context, timeout time.Duration) {
-	tick := time.NewTicker(2 * time.Second)
-	for {
+	for tick := time.NewTicker(2 * time.Second); ; {
 		conn.mu.Lock()
 		update := conn.clock.Since(conn.meterUpdated) > timeout
 		conn.mu.Unlock()

charger/pulsatrix.go

@@ -328,14 +328,11 @@ func (c *Pulsatrix) parseMessage(messageType websocket.MessageType, message []by
 func (c *Pulsatrix) heartbeat(ctx context.Context) {
 	defer c.wg.Done()
 
-	ticker := time.NewTicker(heartbeatInterval)
-	defer ticker.Stop()
-
-	for {
+	for tick := time.NewTicker(heartbeatInterval); ; {
 		select {
 		case <-ctx.Done():
 			return
-		case <-ticker.C:
+		case <-tick.C:
 			enabled := atomic.LoadInt32(&c.enabled) != 0
 			if err := c.Enable(enabled); err != nil {
 				atomic.AddInt32(&c.consecutiveHeartbeatErrors, 1)

charger/semp.go

@@ -156,12 +156,9 @@ func NewSEMP(ctx context.Context, uri, deviceID string, cache time.Duration) (ap
 
 // heartbeat ensures that device control updates are sent at least once per minute
 func (wb *SEMP) heartbeat(ctx context.Context) {
-	ticker := time.NewTicker(time.Second)
-	defer ticker.Stop()
-
-	for {
+	for tick := time.NewTicker(time.Second); ; {
 		select {
-		case <-ticker.C:
+		case <-tick.C:
 			// Check if we need to send an update
 			if time.Since(wb.conn.Updated()) >= time.Minute {
 				if err := wb.conn.SendDeviceControl(wb.deviceID, wb.calcPower(wb.enabled, wb.current, wb.phases)); err != nil {