Imported Upstream version 3.2.2

[debian/gnuradio] / mblock / src / lib / mb_runtime_nop.cc

diff --git a/mblock/src/lib/mb_runtime_nop.cc b/mblock/src/lib/mb_runtime_nop.cc
new file mode 100644 (file)
index 0000000..603d5ad
--- /dev/null
+++ b/mblock/src/lib/mb_runtime_nop.cc
@@ -0,0 +1,84 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2008 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 3, 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_nop.h>
+#include <mblock/mblock.h>
+#include <mblock/class_registry.h>
+#include <mblock/exception.h>
+
+mb_runtime_sptr 
+mb_make_runtime_nop()
+{
+  return mb_runtime_sptr(new mb_runtime_nop());
+}
+
+
+mb_runtime_nop::mb_runtime_nop()
+{
+  // nop for now
+}
+
+mb_runtime_nop::~mb_runtime_nop()
+{
+  // nop for now
+}
+
+
+bool
+mb_runtime_nop::run(const std::string &instance_name,
+                   const std::string &class_name,
+                   pmt_t user_arg, pmt_t *result)
+{
+  class initial_visitor : public mb_visitor
+  {
+  public:
+    bool operator()(mb_mblock *mblock)
+    {
+      mblock->initial_transition();
+      return true;
+    }
+  };
+
+  initial_visitor visitor;
+
+  if (result)
+    *result = PMT_T;
+
+  d_top = create_component(instance_name, class_name, user_arg);
+  d_top->walk_tree(&visitor);
+
+  return true;
+}
+
+mb_mblock_sptr
+mb_runtime_nop::create_component(const std::string &instance_name,
+                                const std::string &class_name,
+                                pmt_t user_arg)
+{
+  mb_mblock_maker_t maker;
+  if (!mb_class_registry::lookup_maker(class_name, &maker))
+    throw mbe_no_such_class(0, class_name + " (in " + instance_name + ")");
+
+  return maker(this, instance_name, user_arg);
+}