1 /* -*- c++ -*- */
2 /*
3 * Copyright 2008,2013 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22 #ifndef INCLUDED_GR_RUNTIME_SPTR_MAGIC_H
23 #define INCLUDED_GR_RUNTIME_SPTR_MAGIC_H
24
25 #include <gnuradio/api.h>
26 #include <boost/shared_ptr.hpp>
27
28 namespace gr {
29 class basic_block;
30 class hier_block2;
31 } // namespace gr
32
33 namespace gnuradio {
34 namespace detail {
35
36 class GR_RUNTIME_API sptr_magic
37 {
38 public:
39 static boost::shared_ptr<gr::basic_block> fetch_initial_sptr(gr::basic_block* p);
40 static void create_and_stash_initial_sptr(gr::hier_block2* p);
41 static void cancel_initial_sptr(gr::hier_block2* p);
42 };
43 } // namespace detail
44
45 /*
46 * \brief New! Improved! Standard method to get/create the
47 * boost::shared_ptr for a block.
48 */
49 template <class T>
get_initial_sptr(T * p)50 boost::shared_ptr<T> get_initial_sptr(T* p)
51 {
52 return boost::dynamic_pointer_cast<T, gr::basic_block>(
53 detail::sptr_magic::fetch_initial_sptr(p));
54 }
55 } // namespace gnuradio
56
57 #endif /* INCLUDED_GR_RUNTIME_SPTR_MAGIC_H */
58