From: Kristian Høgsberg <krh@bitplanet.net>
Date: Sat, 20 Oct 2012 03:05:37 +0000 (-0400)
Subject: Define our own container_of as well
X-Git-Tag: 1.0.0~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8c31a4c025a819b7293fd984fabdbee39d81a645;p=platform%2Fupstream%2Fweston.git

Define our own container_of as well

Don't rely on libwayland-client/server to define this for us.
---

diff --git a/clients/window.h b/clients/window.h
index 4dd4c20..3d35396 100644
--- a/clients/window.h
+++ b/clients/window.h
@@ -30,6 +30,10 @@
 
 #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 window;
 struct widget;
 struct display;
diff --git a/src/compositor.h b/src/compositor.h
index 19ab11e..3176bfd 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -39,6 +39,10 @@
 
 #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 weston_transform {
 	struct weston_matrix matrix;
 	struct wl_list link;