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-rw-r--r--util/addon.c49
-rw-r--r--util/meson.build1
2 files changed, 50 insertions, 0 deletions
diff --git a/util/addon.c b/util/addon.c
new file mode 100644
index 00000000..7de54a73
--- /dev/null
+++ b/util/addon.c
@@ -0,0 +1,49 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <wayland-server-core.h>
+
+#include "wlr/util/addon.h"
+
+void wlr_addon_set_init(struct wlr_addon_set *set) {
+ wl_list_init(&set->addons);
+}
+
+void wlr_addon_set_finish(struct wlr_addon_set *set) {
+ struct wlr_addon *addon, *tmp;
+ wl_list_for_each_safe(addon, tmp, &set->addons, link) {
+ wlr_addon_finish(addon);
+ addon->impl->destroy(addon);
+ }
+}
+
+void wlr_addon_init(struct wlr_addon *addon, struct wlr_addon_set *set,
+ const void *owner, const struct wlr_addon_interface *impl) {
+ assert(owner);
+ struct wlr_addon *iter;
+ wl_list_for_each(iter, &set->addons, link) {
+ if (iter->owner == addon->owner) {
+ assert(0 && "Can't have two addons with the same owner");
+ }
+ }
+ wl_list_insert(&set->addons, &addon->link);
+ addon->owner = owner;
+ addon->impl = impl;
+}
+
+void wlr_addon_finish(struct wlr_addon *addon) {
+ if (addon->owner) {
+ addon->owner = NULL;
+ wl_list_remove(&addon->link);
+ }
+}
+
+struct wlr_addon *wlr_addon_find_by_owner(struct wlr_addon_set *set,
+ const void *owner) {
+ struct wlr_addon *addon;
+ wl_list_for_each(addon, &set->addons, link) {
+ if (addon->owner == owner) {
+ return addon;
+ }
+ }
+ return NULL;
+}
diff --git a/util/meson.build b/util/meson.build
index c2b46749..a416490f 100644
--- a/util/meson.build
+++ b/util/meson.build
@@ -1,4 +1,5 @@
wlr_files += files(
+ 'addon.c',
'array.c',
'box.c',
'global.c',