From dd8fe077022138d1f6aca7e6d6cceec61f56ce95 Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <jk@ozlabs.org>
Date: Mon, 21 Oct 2013 11:03:17 +0800
Subject: lib: consolidate util macros in util/util.h

This change groups the offsetof, container_of and ARRAY_SIZE macros in a
single header file util/util.h.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---
 lib/Makefile.am              |  3 ++-
 lib/array-size/array-size.h  |  7 -------
 lib/list/list.h              | 12 ++----------
 lib/pb-config/storage-test.c |  2 +-
 lib/util/util.h              | 34 ++++++++++++++++++++++++++++++++++
 5 files changed, 39 insertions(+), 19 deletions(-)
 delete mode 100644 lib/array-size/array-size.h
 create mode 100644 lib/util/util.h

(limited to 'lib')

diff --git a/lib/Makefile.am b/lib/Makefile.am
index f000a2f..b492d69 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -42,6 +42,7 @@ libpbcore_la_SOURCES = \
 	system/system.c \
 	system/system.h \
 	url/url.c \
-	url/url.h
+	url/url.h \
+	util/util.h
 
 MAINTAINERCLEANFILES = Makefile.in
diff --git a/lib/array-size/array-size.h b/lib/array-size/array-size.h
deleted file mode 100644
index 12d59f8..0000000
--- a/lib/array-size/array-size.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARRAY_SIZE_H
-#define ARRAY_SIZE_H
-
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
-
-#endif /* ARRAY_SIZE_H */
-
diff --git a/lib/list/list.h b/lib/list/list.h
index 0174b90..ad562e4 100644
--- a/lib/list/list.h
+++ b/lib/list/list.h
@@ -1,6 +1,8 @@
 #ifndef _LIST_H
 #define _LIST_H
 
+#include <util/util.h>
+
 struct list_item {
 	struct list_item *prev, *next;
 };
@@ -9,16 +11,6 @@ struct list {
 	struct list_item head;
 };
 
-#ifndef container_of
-#define container_of(_ptr, _type, _member) ({ \
-	const typeof( ((_type *)0)->_member ) *__mptr = (_ptr); \
-	(_type *)( (char *)__mptr - offsetof(_type,_member) );})
-#endif
-
-#ifndef offsetof
-#define offsetof(_type, _member) ((size_t) &((_type *)0)->_member)
-#endif
-
 #define list_for_each(_list, _pos) \
 	for (_pos = (_list)->head.next; _pos != ((_list)->head); _pos = _pos->next)
 
diff --git a/lib/pb-config/storage-test.c b/lib/pb-config/storage-test.c
index 3ce58ef..e4a0e5a 100644
--- a/lib/pb-config/storage-test.c
+++ b/lib/pb-config/storage-test.c
@@ -4,7 +4,7 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 
-#include <array-size/array-size.h>
+#include <util/util.h>
 
 #include "pb-config.h"
 #include "storage.h"
diff --git a/lib/util/util.h b/lib/util/util.h
new file mode 100644
index 0000000..30b472d
--- /dev/null
+++ b/lib/util/util.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2013 IBM Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef UTIL_H
+#define UTIL_H
+
+#ifndef container_of
+#define container_of(_ptr, _type, _member) ({ \
+	const typeof( ((_type *)0)->_member ) *__mptr = (_ptr); \
+	(_type *)( (char *)__mptr - offsetof(_type,_member) );})
+#endif
+
+#ifndef offsetof
+#define offsetof(_type, _member) ((size_t) &((_type *)0)->_member)
+#endif
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+
+#endif /* UTIL_H */
+
-- 
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