1 files changed, 46 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h b/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h
new file mode 100644
index 0000000..e56f1d3
--- /dev/null
+++ b/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h
@@ -0,0 +1,46 @@
+#ifndef _GPXE_REFCNT_H
+#define _GPXE_REFCNT_H
+
+/** @file
+ *
+ * Reference counting
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/**
+ * A reference counter
+ *
+ * This data structure is designed to be embedded within a
+ * reference-counted object.
+ *
+ * Reference-counted objects are freed when their reference count
+ * drops below zero.  This means that a freshly allocated-and-zeroed
+ * reference-counted object will be freed on the first call to
+ * ref_put().
+ */
+struct refcnt {
+	/** Current reference count
+	 *
+	 * When this count is decremented below zero, the free()
+	 * method will be called.
+	 */
+	int refcnt;
+	/** Free containing object
+	 *
+	 * This method is called when the reference count is
+	 * decremented below zero.
+	 *
+	 * If this method is left NULL, the standard library free()
+	 * function will be called.  The upshot of this is that you
+	 * may omit the free() method if the @c refcnt object is the
+	 * first element of your reference-counted struct.
+	 */
+	void ( * free ) ( struct refcnt *refcnt );
+};
+
+extern struct refcnt * ref_get ( struct refcnt *refcnt );
+extern void ref_put ( struct refcnt *refcnt );
+
+#endif /* _GPXE_REFCNT_H */