dome.h

The dome driver snoops on the rain detector signal and watches whether rain is detected or not. If it is detector and the dome is closed, it performs no action, but it also prevents you from opening the dome due to rain. If the dome is open, it will automatically starts closing the shutter. In order snooping to work, both drivers must be started by the same indiserver (or chained INDI servers):

indiserver tutorial_dome tutorial_rain 

The dome driver keeps a copy of RainL light property from the rain driver. This makes it easy to parse the property status once an update from the rain driver arrives in the dome driver. Alternatively, you can directly parse the XML root element in ISSnoopDevice(XMLEle *root) to extract the required data.

/*
   INDI Developers Manual
   Tutorial #5 - Snooping
 
   Dome
 
   Refer to README, which contains instruction on how to build this driver, and use it
   with an INDI-compatible client.
 
*/
 
#pragma once
 
#include <defaultdevice.h>
#include <indipropertyswitch.h>
#include <indipropertylight.h>
 
class Dome : public INDI::DefaultDevice
{
    public:
        Dome() = default;
 
    public:
        void closeShutter();
        void openShutter();
 
    protected:
        // General device functions
        bool Connect() override;
        bool Disconnect() override;
        const char *getDefaultName() override;
        bool initProperties() override;
        bool updateProperties() override;
 
    private:
        INDI::PropertySwitch mShutterSwitch {2};
        INDI::PropertyLight  mRainLight {1};
};