Type Alias CFHostClientCallBack 

pub type CFHostClientCallBack = Option<unsafe extern "C-unwind" fn(NonNull<CFHost>, CFHostInfoType, *const CFStreamError, *mut c_void)>;

Available on crate feature CFHost only.

Apple’s documentation

Aliased Type

pub enum CFHostClientCallBack {
    None,
    Some(unsafe extern "C-unwind" fn(NonNull<CFHost>, CFHostInfoType, *const CFStreamError, *mut c_void)),
}

Variants

None

No value.

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

Some value of type T.