Type Alias GapEventCallback 

pub type GapEventCallback = Option<unsafe extern "C" fn(event: GapEvent, context: *mut c_void) -> bool>;

Aliased Type

pub enum GapEventCallback {
    None,
    Some(unsafe extern "C" fn(GapEvent, *mut c_void) -> bool),
}

Variants

None

No value.

Some(unsafe extern "C" fn(GapEvent, *mut c_void) -> bool)

Some value of type T.