1 files changed, 57 insertions, 0 deletions
diff --git a/mblock/src/lib/mb_runtime_placeholder.cc b/mblock/src/lib/mb_runtime_placeholder.cc
new file mode 100644
index 000000000..5ce7cc2ac
--- /dev/null
+++ b/mblock/src/lib/mb_runtime_placeholder.cc
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <mb_runtime_placeholder.h>
+#include <mb_mblock.h>
+#include <mb_exception.h>
+
+
+static mb_runtime *s_singleton = 0;
+
+
+mb_runtime_placeholder::mb_runtime_placeholder()
+{
+  // nop
+}
+
+mb_runtime_placeholder::~mb_runtime_placeholder()
+{
+  // nop
+}
+
+bool
+mb_runtime_placeholder::run(mb_mblock_sptr top)
+{
+  throw mbe_not_implemented(top.get(), "mb_runtime_placeholder::run");
+}
+
+mb_runtime *
+mb_runtime_placeholder::singleton()
+{
+  if (s_singleton)
+    return s_singleton;
+
+  s_singleton = new mb_runtime_placeholder();
+  return s_singleton;
+}