Type Alias FREFinalizer 

pub type FREFinalizer = Option<unsafe extern "C" fn(*mut c_void)>;

Called iff the extension is unloaded from the process. Extensions are not guaranteed to be unloaded; the runtime process may exit without doing so.

Aliased Type

pub enum FREFinalizer {
    None,
    Some(unsafe extern "C" fn(*mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void))

Some value of type T.