1 files changed, 74 insertions, 0 deletions
diff --git a/usr.sbin/fifolog/lib/miniobj.h b/usr.sbin/fifolog/lib/miniobj.h
new file mode 100644
index 0000000..dd79be1
--- /dev/null
+++ b/usr.sbin/fifolog/lib/miniobj.h
@@ -0,0 +1,74 @@
+/*-
+ * Copyright (c) 2005-2008 Poul-Henning Kamp
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#define ALLOC_OBJ(to, type_magic)					\
+	do {								\
+		(to) = calloc(sizeof *(to), 1);				\
+		if ((to) != NULL)					\
+			(to)->magic = (type_magic);			\
+	} while (0)
+
+#define FREE_OBJ(to)							\
+	do {								\
+		(to)->magic = (0);					\
+		free(to);						\
+	} while (0)
+
+#define VALID_OBJ(ptr, type_magic)					\
+	((ptr) != NULL && (ptr)->magic == (type_magic))
+
+#define CHECK_OBJ(ptr, type_magic)					\
+	do {								\
+		assert((ptr)->magic == type_magic);			\
+	} while (0)
+
+#define CHECK_OBJ_NOTNULL(ptr, type_magic)				\
+	do {								\
+		assert((ptr) != NULL);					\
+		assert((ptr)->magic == type_magic);			\
+	} while (0)
+
+#define CHECK_OBJ_ORNULL(ptr, type_magic)				\
+	do {								\
+		if ((ptr) != NULL)					\
+			assert((ptr)->magic == type_magic);		\
+	} while (0)
+
+#define CAST_OBJ(to, from, type_magic)					\
+	do {								\
+		(to) = (from);						\
+		if ((to) != NULL)					\
+			CHECK_OBJ((to), (type_magic));			\
+	} while (0)
+
+#define CAST_OBJ_NOTNULL(to, from, type_magic)				\
+	do {								\
+		(to) = (from);						\
+		assert((to) != NULL);					\
+		CHECK_OBJ((to), (type_magic));				\
+	} while (0)