Function findController

mininet/node.py:1601–1606

Return first available controller from list, if any

( controllers=DefaultControllers )

DefaultControllers = ( Controller, OVSController )

def findController( controllers=DefaultControllers ):
    "Return first available controller from list, if any"
    for controller in controllers:
        if controller.isAvailable():
            return controller
    return None

def DefaultController( name, controllers=DefaultControllers, **kwargs ):
    "Find a controller that is available and instantiate it"