Type Alias ucs_callbackq_predicate_t

pub type ucs_callbackq_predicate_t = Option<unsafe extern "C" fn(elem: *const ucs_callbackq_elem_t, arg: *mut c_void) -> c_int>;

Callback queue element predicate.

@param [in] elem Callback queue element to check. @param [in] arg User-defined argument.

@return Predicate result value - nonzero means “true”, zero means “false”.

Aliased Type

enum ucs_callbackq_predicate_t {
    None,
    Some(unsafe extern "C" fn(_: *const ucs_callbackq_elem, _: *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *const ucs_callbackq_elem, _: *mut c_void) -> i32)

Some value of type T.