From f3e2e07201c50033bf6c9d0c6a6f068557b4f17f Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Wed, 17 Apr 2013 13:43:52 -0400
Subject: runtime: converting runtime core to gr namespace, gnuradio include
dir.
---
gnuradio-runtime/lib/sptr_magic.cc | 72 ++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
create mode 100644 gnuradio-runtime/lib/sptr_magic.cc
(limited to 'gnuradio-runtime/lib/sptr_magic.cc')
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;
+ }
+};
--
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