libBLOC

diff --git a/object/object.h b/object/object.h
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--- /dev/null
+++ b/object/object.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2023 Barry
+ *
+ * This file is part of Barry's Little Objects in C Library (libBLOC).
+ *
+ * libBLOC 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, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * libBLOC is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTIBILITY 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
+ * libBLOC.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef OBJECT_H
+#define OBJECT_H
+
+typedef _Atomic int spinlock_t;
+
+/* Structure for an object header */
+struct ObjectHeader {
+	unsigned int magic;
+	struct ObjectType *type;
+	refcount_t usage;
+
+	spinlock_t lock;
+	unsigned int owner;
+	refcount_t locks;
+};
+#define OBJECT_MAGIC 0x01020304
+
+/* Get a pointer to an object's header */
+static struct ObjectHeader *
+object_header(void *addr)
+{
+	return (addr - sizeof(struct ObjectHeader));
+}
+
+#endif