diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-04-17 13:43:52 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-04-29 14:52:56 -0400 |
| commit | f3e2e07201c50033bf6c9d0c6a6f068557b4f17f (patch) | |
| tree | 140b3c2d20a951ffd4abd564c3378ee2e2f9fc7c /gnuradio-runtime/lib/sptr_magic.cc | |
| parent | 35303ae975a5b1bdecc2492bc96e2b8e89b62a3d (diff) | |
runtime: converting runtime core to gr namespace, gnuradio include dir.
Diffstat (limited to 'gnuradio-runtime/lib/sptr_magic.cc')
| -rw-r--r-- | gnuradio-runtime/lib/sptr_magic.cc | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/sptr_magic.cc b/gnuradio-runtime/lib/sptr_magic.cc new file mode 100644 index 0000000000..70596abb05 --- /dev/null +++ b/gnuradio-runtime/lib/sptr_magic.cc @@ -0,0 +1,72 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2009,2013 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 <gnuradio/sptr_magic.h> +#include <gnuradio/hier_block2.h> +#include <map> +#include <stdexcept> + +#include <gnuradio/thread/thread.h> + +namespace gnuradio { + + static gr::thread::mutex s_mutex; + typedef std::map<gr::basic_block*, gr::basic_block_sptr> sptr_map; + static sptr_map s_map; + + void + detail::sptr_magic::create_and_stash_initial_sptr(gr::hier_block2 *p) + { + gr::basic_block_sptr sptr(p); + gr::thread::scoped_lock guard(s_mutex); + s_map.insert(sptr_map::value_type(static_cast<gr::basic_block *>(p), sptr)); + } + + gr::basic_block_sptr + detail::sptr_magic::fetch_initial_sptr(gr::basic_block *p) + { + /* + * If p isn't a subclass of gr::hier_block2, just create the + * shared ptr and return it. + */ + gr::hier_block2 *hb2 = dynamic_cast<gr::hier_block2 *>(p); + if(!hb2) { + return gr::basic_block_sptr(p); + } + + /* + * p is a subclass of gr::hier_block2, thus we've already created the shared pointer + * and stashed it away. Fish it out and return it. + */ + gr::thread::scoped_lock guard(s_mutex); + sptr_map::iterator pos = s_map.find(static_cast<gr::basic_block *>(p)); + if(pos == s_map.end()) + throw std::invalid_argument("sptr_magic: invalid pointer!"); + + gr::basic_block_sptr sptr = pos->second; + s_map.erase(pos); + return sptr; + } +}; |