The 'HOST' #define in light switch examples

[Mahendra Tailor]

In the examples I see places where there is conditional code based on the #define HOST.

For example in function nrf_mesh_init() i see that the softdevice is only enabled if HOST is undefined.

That seems to suggest that I integrate the mesh code into my firmware where I already call softdevice, then I need to ensure the HOST is defined

I have checked in the segger ide appropriate place for preprocessor defines and I see HOST is not defined there.

I wish Nordic could adopt a convention that for this example in the preprocessor definitions there is an explicit 'notHOST' which conveys to the reader that there is a significance to that hash define

The absence of 'HOST' leads to confusion, the presence of 'notHOST' will give the some relevant information.

I worked for a consultancy 2 decades ago and they drilled that into me :-)

[Hung Bui]

Hi Mahendra,

The "HOST" define is used when we do unit test of the modules. We could have used different name to make it clearer. Don't think the application need to do anything with that.

[Mahendra Tailor]

I note that if the HOST is defined the softdevice initialisation code is not called. Given I plan to integrate the mesh code into our standard firmware image where we already enable the softdevice I actually do not want that code to be called in the mesh stack. But now given you mention it is for unit testing I am nervous that I define HOST for my project.

Can you make any recommendations for my integration use case?