packagefs: Add support for node_ref

src/add-ons/kernel/file_systems/packagefs/util/NodeRef.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2014, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef NODE_REF_H
+#define NODE_REF_H
+
+
+#include <Node.h>
+
+
+inline
+node_ref::node_ref()
+	:
+	device(-1),
+	node(-1)
+{
+}
+
+
+inline
+node_ref::node_ref(dev_t device, ino_t node)
+	:
+	device(device),
+	node(node)
+{
+}
+
+
+inline
+node_ref::node_ref(const node_ref& other)
+	:
+	device(other.device),
+	node(other.node)
+{
+}
+
+
+inline bool
+node_ref::operator==(const node_ref& other) const
+{
+	return device == other.device && node == other.node;
+}
+
+
+inline bool
+node_ref::operator!=(const node_ref& other) const
+{
+	return !(*this == other);
+}
+
+
+inline bool
+node_ref::operator<(const node_ref& other) const
+{
+	if (device != other.device)
+		return device < other.device;
+	return node < other.node;
+}
+
+
+inline node_ref&
+node_ref::operator=(const node_ref& other)
+{
+	device = other.device;
+	node = other.node;
+	return *this;
+}
+
+
+#endif	// NODE_REF_H