KRF-312 #fix Fixed minor bugs that allowed calling methods on nulls in Event and Loop API

Author: khelle

Model/SelectLoop.php

@@ -206,7 +206,10 @@ public function addPeriodicTimer($interval, callable $callback)
      */
     public function cancelTimer(TimerInterface $timer)
     {
-        $this->timers->remove($timer);
+        if (isset($this->timers))
+        {
+            $this->timers->remove($timer);
+        }
     }
 
     /**

Timer/Timer.php

@@ -138,6 +138,9 @@ public function isActive()
      */
     public function cancel()
     {
-        $this->loop->cancelTimer($this);
+        if (isset($this->loop))
+        {
+            $this->loop->cancelTimer($this);
+        }
     }
 }