[PATCH weston v6 44/73] libweston: log head detach on enabled output

[Pekka Paalanen]

From: Pekka Paalanen <pekka.paalanen at collabora.co.uk>

Helps debugging.

Signed-off-by: Pekka Paalanen <pekka.paalanen at collabora.co.uk>
---
 libweston/compositor.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/libweston/compositor.c b/libweston/compositor.c
index 0d2af676..362074b6 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -4693,6 +4693,7 @@ WL_EXPORT void
 weston_head_detach(struct weston_head *head)
 {
 	struct weston_output *output = head->output;
+	char *head_names;
 
 	wl_list_remove(&head->output_link);
 	wl_list_init(&head->output_link);
@@ -4707,8 +4708,16 @@ weston_head_detach(struct weston_head *head)
 	if (output->enabled) {
 		weston_head_remove_global(head);
 
-		if (wl_list_empty(&output->head_list))
+		if (wl_list_empty(&output->head_list)) {
+			weston_log("Output '%s' no heads left, disabling.\n",
+				   output->name);
 			weston_output_disable(output);
+		} else {
+			head_names = weston_output_create_heads_string(output);
+			weston_log("Output '%s' updated to have head(s) %s\n",
+				   output->name, head_names);
+			free(head_names);
+		}
 	}
 }
 
-- 
2.13.6