From fac10ea799fe9b6158d74f66d6ad46536d38a545 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Wed, 18 Mar 2009 04:55:00 +0100
Subject: Initial commit

---
 include/utils.h | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 include/utils.h

(limited to 'include/utils.h')

diff --git a/include/utils.h b/include/utils.h
new file mode 100644
index 00000000..beb63868
--- /dev/null
+++ b/include/utils.h
@@ -0,0 +1,69 @@
+#ifndef _UTILS_H
+#define _UTILS_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <assert.h>
+#include <list.h>
+#include <gmp.h>
+
+#define BITS_PER_BYTE	8
+
+#ifdef DEBUG
+#define pr_debug(fmt, arg...) gmp_printf(fmt, ##arg)
+#else
+#define pr_debug(fmt, arg...) ({ if (false) gmp_printf(fmt, ##arg); 0; })
+#endif
+
+#define __fmtstring(x, y)	__attribute__((format(printf, x, y)))
+#if 0
+#define __gmp_fmtstring(x, y)	__fmtstring(x, y)
+#else
+#define __gmp_fmtstring(x, y)
+#endif
+
+#define __init			__attribute__((constructor))
+#define __exit			__attribute__((destructor))
+#define __must_check		__attribute__((warn_unused_result))
+#define __noreturn		__attribute__((__noreturn__))
+
+#define BUG()			assert(0)
+
+#define BUILD_BUG_ON(condition)	((void)sizeof(char[1 - 2*!!(condition)]))
+#define BUILD_BUG_ON_ZERO(e)	(sizeof(char[1 - 2 * !!(e)]) - 1)
+
+#define __must_be_array(a) \
+	BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
+
+#define container_of(ptr, type, member) ({			\
+	typeof( ((type *)0)->member ) *__mptr = (ptr);		\
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
+#define field_sizeof(t, f)	(sizeof(((t *)NULL)->f))
+#define array_size(arr)		(sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#define div_round_up(n, d)	(((n) + (d) - 1) / (d))
+
+#define min(x, y) ({				\
+	typeof(x) _min1 = (x);			\
+	typeof(y) _min2 = (y);			\
+	(void) (&_min1 == &_min2);		\
+	_min1 < _min2 ? _min1 : _min2; })
+
+#define max(x, y) ({				\
+	typeof(x) _max1 = (x);			\
+	typeof(y) _max2 = (y);			\
+	(void) (&_max1 == &_max2);		\
+	_max1 > _max2 ? _max1 : _max2; })
+
+extern void memory_allocation_error(void) __noreturn;
+
+extern void xfree(const void *ptr);
+extern void *xmalloc(size_t size);
+extern void *xrealloc(void *ptr, size_t size);
+extern void *xzalloc(size_t size);
+extern char *xstrdup(const char *s);
+
+#endif /* _UTILS_H */
-- 
cgit v1.2.3