Added random periodic message source with seed intialization

include/foo/CMakeLists.txt

@@ -29,5 +29,5 @@ install(FILES
 	periodic_msg_source.h
 	wireshark_connector.h
 	rtt_measure.h
-	DESTINATION include/foo
+    random_periodic_msg_source.h	DESTINATION include/foo
 )

include/foo/random_periodic_msg_source.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 Bastian Bloessl <bloessl@ccs-labs.org>
+ *               2016 Paul Garver <garverp@gatech.edu>
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef INCLUDED_FOO_RANDOM_PERIODIC_MSG_SOURCE_H
+#define INCLUDED_FOO_RANDOM_PERIODIC_MSG_SOURCE_H
+
+#include <foo/api.h>
+#include <gnuradio/block.h>
+
+namespace gr {
+namespace foo {
+
+class FOO_API random_periodic_msg_source : virtual public gr::block
+{
+public:
+
+	typedef boost::shared_ptr<random_periodic_msg_source> sptr;
+	static sptr make(int msg_len, float interval, int num_msg = 1,
+			bool quit = true, bool debug = false, int seed = 0);
+
+	virtual void set_nmsg(int nmsg) = 0;
+	virtual int get_nmsg() = 0;
+
+	virtual void set_delay(float delay) = 0;
+	virtual float get_delay() = 0;
+
+	virtual void start_tx() = 0;
+	virtual void stop_tx() = 0;
+	virtual bool is_running() = 0;
+};
+
+}  // namespace foo
+}  // namespace gr
+
+#endif /* INCLUDED_FOO_RANDOM_PERIODIC_MSG_SOURCE */