GNU Radio 3.6.1 C++ API
gr_sptr_magic.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008 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 #ifndef INCLUDED_GR_SPTR_MAGIC_H
22 #define INCLUDED_GR_SPTR_MAGIC_H
23 
24 #include <gr_core_api.h>
25 #include <boost/shared_ptr.hpp>
26 
27 class gr_basic_block;
28 class gr_hier_block2;
29 
30 namespace gnuradio {
31 
32  namespace detail {
33 
35  public:
36  static boost::shared_ptr<gr_basic_block> fetch_initial_sptr(gr_basic_block *p);
37  static void create_and_stash_initial_sptr(gr_hier_block2 *p);
38  };
39  };
40 
41  /*
42  * \brief New! Improved! Standard method to get/create the boost::shared_ptr for a block.
43  */
44  template<class T>
46  get_initial_sptr(T *p)
47  {
48  return boost::dynamic_pointer_cast<T, gr_basic_block>(detail::sptr_magic::fetch_initial_sptr(p));
49  }
50 };
51 
52 #endif /* INCLUDED_GR_SPTR_MAGIC_H */