1 files changed, 25 insertions, 0 deletions
diff --git a/macro.h b/macro.h
new file mode 100644
index 0000000..c91b8cf
--- /dev/null
+++ b/macro.h
@@ -0,0 +1,25 @@
+#ifndef __TUNNEL_MACRO_H__
+#define __TUNNEL_MACRO_H__
+
+#include <stdlib.h>
+#include <string.h>
+
+#define _new(t)		memset(malloc(sizeof(t)), 0, sizeof(t))
+
+#define _copy(p, ...)	_copy_(p, ## __VA_ARGS__, sizeof(*p))
+#define _copy_(p, n, ...)	memcpy(malloc(n), p, n)
+
+#define __unused	__attribute__((unused))
+#define __cleanup(f)	__attribute__((cleanup(f)))
+
+#define CAT(a, b)	CAT_(a, b)
+#define CAT_(a, b)	a ## b
+
+#define UNIQ(name)	CAT(name, __LINE__)
+
+#define defer 								\
+	auto void UNIQ(defer_func)(int *);				\
+	int UNIQ(defer_var) __cleanup(UNIQ(defer_func));		\
+	void UNIQ(defer_func)(int *p __unused)
+
+#endif