Function g_output_stream_writev_all

pub unsafe extern "C" fn g_output_stream_writev_all(
    stream: *mut GOutputStream,
    vectors: *mut GOutputVector,
    n_vectors: size_t,
    bytes_written: *mut size_t,
    cancellable: *mut GCancellable,
    error: *mut *mut GError,
) -> gboolean

Available on crate feature v2_60 only.