void mongoc_cursor_set_max_await_time_ms (mongoc_cursor_t *cursor, uint32_t max_await_time_ms);
The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Only applies if the cursor is created from mongoc_collection_find with the MONGOC_QUERY_TAILABLE_CURSOR and MONGOC_QUERY_AWAIT_DATA, and the server is MongoDB 3.2 or later. See .
The max_await_time_ms cannot be changed after the first call to mongoc_cursor_next.