GNU Radio Manual and C++ API Reference  3.7.9.2
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sptr_magic.h
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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 }
32 
33 namespace gnuradio {
34  namespace detail {
35 
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  };
44 
45  /*
46  * \brief New! Improved! Standard method to get/create the
47  * boost::shared_ptr for a block.
48  */
49  template<class T>
50  boost::shared_ptr<T>
51  get_initial_sptr(T *p)
52  {
53  return boost::dynamic_pointer_cast<T, gr::basic_block>
54  (detail::sptr_magic::fetch_initial_sptr(p));
55  }
56 }
57 
58 #endif /* INCLUDED_GR_RUNTIME_SPTR_MAGIC_H */
#define GR_RUNTIME_API
Definition: gnuradio-runtime/include/gnuradio/api.h:30
Definition: sptr_magic.h:33
Include this header to use the message passing features.
Definition: logger.h:131
The abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an ...
Definition: basic_block.h:58
Definition: sptr_magic.h:36
Hierarchical container class for gr::block's and gr::hier_block2's.
Definition: hier_block2.h:46