From 346e52420171cedaf1fb7dffe7e37f99b478c5b1 Mon Sep 17 00:00:00 2001
From: Alexander Orzechowski <orzechowski.alexander@gmail.com>
Date: Thu, 18 Aug 2022 07:14:28 -0400
Subject: [PATCH] Remove wlr_signal_emit_safe

---
 include/util/signal.h |  8 --------
 util/meson.build      |  1 -
 util/signal.c         | 34 ----------------------------------
 3 files changed, 43 deletions(-)
 delete mode 100644 include/util/signal.h
 delete mode 100644 util/signal.c

diff --git a/include/util/signal.h b/include/util/signal.h
deleted file mode 100644
index fd93073a..00000000
--- a/include/util/signal.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef UTIL_SIGNAL_H
-#define UTIL_SIGNAL_H
-
-#include <wayland-server-core.h>
-
-void wlr_signal_emit_safe(struct wl_signal *signal, void *data);
-
-#endif
diff --git a/util/meson.build b/util/meson.build
index a416490f..8933f2e7 100644
--- a/util/meson.build
+++ b/util/meson.build
@@ -6,7 +6,6 @@ wlr_files += files(
 	'log.c',
 	'region.c',
 	'shm.c',
-	'signal.c',
 	'time.c',
 	'token.c',
 )
diff --git a/util/signal.c b/util/signal.c
deleted file mode 100644
index 39618465..00000000
--- a/util/signal.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "util/signal.h"
-
-static void handle_noop(struct wl_listener *listener, void *data) {
-	// Do nothing
-}
-
-void wlr_signal_emit_safe(struct wl_signal *signal, void *data) {
-	struct wl_listener cursor;
-	struct wl_listener end;
-
-	/* Add two special markers: one cursor and one end marker. This way, we know
-	 * that we've already called listeners on the left of the cursor and that we
-	 * don't want to call listeners on the right of the end marker. The 'it'
-	 * function can remove any element it wants from the list without troubles.
-	 * wl_list_for_each_safe tries to be safe but it fails: it works fine
-	 * if the current item is removed, but not if the next one is. */
-	wl_list_insert(&signal->listener_list, &cursor.link);
-	cursor.notify = handle_noop;
-	wl_list_insert(signal->listener_list.prev, &end.link);
-	end.notify = handle_noop;
-
-	while (cursor.link.next != &end.link) {
-		struct wl_list *pos = cursor.link.next;
-		struct wl_listener *l = wl_container_of(pos, l, link);
-
-		wl_list_remove(&cursor.link);
-		wl_list_insert(pos, &cursor.link);
-
-		l->notify(l, data);
-	}
-
-	wl_list_remove(&cursor.link);
-	wl_list_remove(&end.link);
-}