Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / runtime / gr_sptr_magic.h

diff --git a/gnuradio-core/src/lib/runtime/gr_sptr_magic.h b/gnuradio-core/src/lib/runtime/gr_sptr_magic.h
new file mode 100644 (file)
index 0000000..872374a
--- /dev/null
+++ b/gnuradio-core/src/lib/runtime/gr_sptr_magic.h
@@ -0,0 +1,51 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 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.
+ */
+#ifndef INCLUDED_GR_SPTR_MAGIC_H
+#define INCLUDED_GR_SPTR_MAGIC_H
+
+#include <boost/shared_ptr.hpp>
+
+class gr_basic_block;
+class gr_hier_block2;
+
+namespace gnuradio {
+
+  namespace detail {
+    
+    class sptr_magic {
+    public:
+      static boost::shared_ptr<gr_basic_block> fetch_initial_sptr(gr_basic_block *p);
+      static void create_and_stash_initial_sptr(gr_hier_block2 *p);
+    };
+  };
+
+  /* 
+   * \brief New!  Improved!  Standard method to get/create the boost::shared_ptr for a block.
+   */
+  template<class T>
+  boost::shared_ptr<T>
+  get_initial_sptr(T *p)
+  {
+    return boost::dynamic_pointer_cast<T, gr_basic_block>(detail::sptr_magic::fetch_initial_sptr(p));
+  }
+};
+
+#endif /* INCLUDED_GR_SPTR_MAGIC_H */