Function read_dora_input_timestamp 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn read_dora_input_timestamp(
    event: *const (),
) -> c_ulonglong

Reads out the timestamp of the given input event from metadata.

Returns 0 if the given event is not an input event.

Safety

The event argument must be a dora event received through dora_next_event. The event must be still valid, i.e., not freed yet.