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window: check the initial wl_display_dispatch()

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Check for errors in the first wl_display_dispatch() call. Otherwise
doing something silly like
  $ WAYLAND_SOCKET=999 ./clickdot
will segfault.

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
This commit is contained in:
Pekka Paalanen 2013-02-14 12:18:00 +02:00 • committed by Kristian Høgsberg
parent 4e1065491b
commit 33a68eaaf4
1 changed files with 6 additions and 1 deletions
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7
clients/window.c
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@ -4287,7 +4287,12 @@ display_create(int argc, char *argv[])
d->registry = wl_display_get_registry(d->display);
wl_registry_add_listener(d->registry, &registry_listener, d);
wl_display_dispatch(d->display);
if (wl_display_dispatch(d->display) < 0) {
fprintf(stderr, "Failed to process Wayland connection: %m\n");
return NULL;
}
#ifdef HAVE_CAIRO_EGL
if (init_egl(d) < 0)
fprintf(stderr, "EGL does not seem to work, "