Type Alias OnFrameCb 

pub type OnFrameCb = Option<unsafe extern "C" fn(conn: *mut Conn, frame: *const Frame, userdata: *mut u8) -> c_int>;

on_frame callback type

Aliased Type

pub enum OnFrameCb {
    None,
    Some(unsafe extern "C" fn(*mut Conn, *const Frame, *mut u8) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut Conn, *const Frame, *mut u8) -> i32)

Some value of type T.