Expose screenshooting as an interface, drop SIGUSR hack.

This pulls in a bit of extra infrastructure for discovering adertised objects on the
client side.

1 files changed, 37 insertions, 0 deletions

diff --git a/wayland-util.h b/wayland-util.h
new file mode 100644
index 0000000..035a4f5
--- /dev/null
+++ b/wayland-util.h
@@ -0,0 +1,37 @@
+#ifndef WAYLAND_UTIL_H
+#define WAYLAND_UTIL_H
+
+/* GCC visibility */
+#if defined(__GNUC__) && __GNUC__ >= 4
+#define WL_EXPORT __attribute__ ((visibility("default")))
+#else
+#define WL_EXPORT
+#endif
+
+#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
+
+#define container_of(ptr, type, member) ({			\
+	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
+struct wl_hash {
+	struct wl_object **objects;
+	uint32_t count, alloc, id;
+};
+
+int wl_hash_insert(struct wl_hash *hash, struct wl_object *object);
+struct wl_object *wl_hash_lookup(struct wl_hash *hash, uint32_t id);
+void wl_hash_delete(struct wl_hash *hash, struct wl_object *object);
+
+struct wl_list {
+	struct wl_list *prev;
+	struct wl_list *next;
+};
+
+void wl_list_init(struct wl_list *list);
+void wl_list_insert(struct wl_list *list, struct wl_list *elm);
+void wl_list_remove(struct wl_list *elm);
+int wl_list_length(struct wl_list *list);
+
+
+#endif