APP_EVENT_HOOK_PREPROCESS_REGISTER_FIRST

#define APP_EVENT_HOOK_PREPROCESS_REGISTER_FIRST

(

hook_fn

)

#include <include/app_event_manager.h>

Value:

        const struct {} __event_hook_preprocess_first_sub_redefined = {};  \
        _APP_EVENT_HOOK_PREPROCESS_REGISTER(hook_fn, _APP_EM_MARKER_FIRST_ELEMENT)

Register event hook on the start of event processing. The hook would be called first.

The hook function should have a form void hook(const struct app_event_header *aeh). The macro makes sure that the hook provided here is called first. Only one hook can be registered with this macro.

Parameters

hook_fn

Hook function.