Type Alias CFNetServiceClientCallBack 

pub type CFNetServiceClientCallBack = Option<unsafe extern "C-unwind" fn(NonNull<CFNetService>, *mut CFStreamError, *mut c_void)>;

Available on crate feature CFNetServices only.

Apple’s documentation

Aliased Type

pub enum CFNetServiceClientCallBack {
    None,
    Some(unsafe extern "C-unwind" fn(NonNull<CFNetService>, *mut CFStreamError, *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(NonNull<CFNetService>, *mut CFStreamError, *mut c_void))

Some value of type T.