1 files changed, 63 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/core/interface.c b/debian/grub-extras/disabled/gpxe/src/core/interface.c
new file mode 100644
index 0000000..6451bfe
--- /dev/null
+++ b/debian/grub-extras/disabled/gpxe/src/core/interface.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program 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 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <gpxe/wrap.h>
+#include <gpxe/interface.h>
+
+/** @file
+ *
+ * Object communication interfaces
+ *
+ */
+
+/**
+ * Plug an interface into a new destination interface
+ *
+ * @v intf		Interface
+ * @v dest		New destination interface
+ *
+ * The reference to the existing destination interface is dropped, a
+ * reference to the new destination interface is obtained, and the
+ * interface is updated to point to the new destination interface.
+ *
+ * Note that there is no "unplug" call; instead you must plug the
+ * interface into a null interface.
+ */
+void plug ( struct interface *intf, struct interface *dest ) {
+	DBGC ( intf, "INTF %p moving from INTF %p to INTF %p\n",
+	       intf, intf->dest, dest );
+	intf_put ( intf->dest );
+	intf->dest = intf_get ( dest );
+}
+
+/**
+ * Plug two interfaces together
+ *
+ * @v a			Interface A
+ * @v b			Interface B
+ *
+ * Plugs interface A into interface B, and interface B into interface
+ * A.  (The basic plug() function is unidirectional; this function is
+ * merely a shorthand for two calls to plug(), hence the name.)
+ */
+void plug_plug ( struct interface *a, struct interface *b ) {
+	plug ( a, b );
+	plug ( b, a );
+}