pub type LifecycleCallbackFnCtx = unsafe extern "C" fn(ctx: *mut c_void) -> u8;Expand description
Lifecycle callback taking a user context pointer (no_std, C FFI shape).
Returns a u8 matching the C NROS_LIFECYCLE_RET_* constants
(0 = Success, 1 = Failure, 2 = Error). Any unknown value is
coerced to TransitionResult::Error inside
LifecyclePollingNodeCtx::trigger_transition.