From: Boram Park <boram1288.park@samsung.com>
Date: Fri, 30 Mar 2018 04:04:00 +0000 (+0900)
Subject: add LIST_FIRST_ENTRY, LIST_LAST_ENTRY macro
X-Git-Tag: accepted/tizen/unified/20180404.063348~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F13%2F174313%2F1;p=platform%2Fcore%2Fuifw%2Flibtdm.git

add LIST_FIRST_ENTRY, LIST_LAST_ENTRY macro

Change-Id: I98adf7df5ecb3dd94627e06bda3eb253033b289d
---

diff --git a/include/tdm_list.h b/include/tdm_list.h
index 7475894..3873817 100644
--- a/include/tdm_list.h
+++ b/include/tdm_list.h
@@ -112,6 +112,12 @@ static inline int list_length(struct list_head *item)
 #define LIST_ENTRY(__type, __item, __field)   \
 	((__type *)(((char *)(__item)) - offsetof(__type, __field)))
 
+#define LIST_FIRST_ENTRY(__ptr, __type, __field)   \
+	LIST_ENTRY(__type, (__ptr)->next, __field)
+
+#define LIST_LAST_ENTRY(__ptr, __type, __field)   \
+	LIST_ENTRY(__type, (__ptr)->prev, __field)
+
 #define LIST_IS_EMPTY(__list)                   \
 	((__list)->next == (__list))