Type Alias mariadb_sys::qc_engine_callback

pub type qc_engine_callback = Option<unsafe extern "C" fn(thd: *mut THD, table_key: *const c_char, key_length: uint, engine_data: *mut ulonglong) -> my_bool>;

Aliased Type

enum qc_engine_callback {
    None,
    Some(unsafe extern "C" fn(_: *mut THD, _: *const i8, _: u32, _: *mut u64) -> i8),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut THD, _: *const i8, _: u32, _: *mut u64) -> i8)

Some value of type T.