ldb_async_callback_fn 855 source4/lib/ldb/include/ldb.h typedef bool (*ldb_async_callback_fn) (void *); ldb_async_callback_fn 856 source4/lib/ldb/include/ldb.h typedef int (*ldb_async_ctx_add_op_fn)(void *, time_t, void *, ldb_async_timeout_fn, ldb_async_callback_fn);