APP_EVENT_HOOK_ON_SUBMIT_REGISTER_FIRST

#define APP_EVENT_HOOK_ON_SUBMIT_REGISTER_FIRST

(

hook_fn

)

#include <include/app_event_manager.h>

Value:

        const struct {} __event_hook_on_submit_first_sub_redefined = {};  \
        _APP_EVENT_HOOK_ON_SUBMIT_REGISTER(hook_fn, _APP_EM_MARKER_FIRST_ELEMENT)

Register hook called on event submission. The hook would be called first.

The event hook called when the event is submitted. 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.

Note

The registered hook may be called from many contexts. To ensure that order of events in the queue matches the order of the registered callbacks calls, the callbacks are called under the same spinlock as adding events to the queue.

Parameters

hook_fn

Hook function.