Re: [PATCH] perf ui/gtk: Ensure not to call gtk_main_quit() twice

From: Pekka Enberg
Date: Sat Aug 18 2012 - 03:52:51 EST


On Fri, Aug 17, 2012 at 7:56 PM, Namhyung Kim <namhyung@xxxxxxxxxx> wrote:
> Currently the gtk_main_quit() is called twice when perf exits so the
> following warning is emitted:
>
> [penberg@tux perf]$ ./perf report --gtk
> ^Cperf: Interrupt
>
> (perf:4048): Gtk-CRITICAL **: IA__gtk_main_quit: assertion `main_loops != NULL' failed
>
> Fix it by not to call it unnecessarily.
>
> Reported-by: Pekka Enberg <penberg@xxxxxxxxxx>
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
> ---
> tools/perf/ui/gtk/setup.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
> index ad40b3626fdb..ec1ee26b485a 100644
> --- a/tools/perf/ui/gtk/setup.c
> +++ b/tools/perf/ui/gtk/setup.c
> @@ -13,6 +13,8 @@ int perf_gtk__init(void)
>
> void perf_gtk__exit(bool wait_for_ok __used)
> {
> + if (!perf_gtk__is_active_context(pgctx))
> + return;
> perf_error__unregister(&perf_gtk_eops);
> gtk_main_quit();
> }

Wouldn't it be nicer to rearrange the callers so that perf_gtk__exit()
is not called twice?
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