Type Alias mariadb_sys::mysql_var_update_func

pub type mysql_var_update_func = Option<unsafe extern "C" fn(thd: *mut THD, var: *mut st_mysql_sys_var, var_ptr: *mut c_void, save: *const c_void)>;

Aliased Type

enum mysql_var_update_func {
    None,
    Some(unsafe extern "C" fn(_: *mut THD, _: *mut st_mysql_sys_var, _: *mut c_void, _: *const c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut THD, _: *mut st_mysql_sys_var, _: *mut c_void, _: *const c_void))

Some value of type T.