1 files changed, 78 insertions, 0 deletions
diff --git a/gr-blocks/lib/qa_set_msg_handler.cc b/gr-blocks/lib/qa_set_msg_handler.cc
new file mode 100644
index 0000000000..cfb990f0c4
--- /dev/null
+++ b/gr-blocks/lib/qa_set_msg_handler.cc
@@ -0,0 +1,78 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2011,2013 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qa_set_msg_handler.h>
+#include <gr_top_block.h>
+#include <blocks/head.h>
+#include <blocks/null_source.h>
+#include <blocks/null_sink.h>
+#include <blocks/nop.h>
+#include <gruel/msg_passing.h>
+#include <iostream>
+#include <boost/thread/thread.hpp>
+
+
+#define VERBOSE 0
+
+/*
+ * The gr::block::nop block has been instrumented so that it counts
+ * the number of messages sent to it. We use this feature to confirm
+ * that gr::blocks::nop's call to set_msg_handler is working correctly.
+ */
+
+void qa_set_msg_handler::t0()
+{
+  static const int NMSGS = 10;
+
+  if (VERBOSE) std::cout << "qa_set_msg_handler::t0()\n";
+
+  gr_top_block_sptr tb = gr_make_top_block("top");
+
+  gr_block_sptr src = gr::blocks::null_source::make(sizeof(int));
+  gr::blocks::nop::sptr nop = gr::blocks::nop::make(sizeof(int));
+  gr_block_sptr dst = gr::blocks::null_sink::make(sizeof(int));
+
+  tb->connect(src, 0, nop, 0);
+  tb->connect(nop, 0, dst, 0);
+
+  // Must start graph before sending messages
+  tb->start();
+
+  // Send them...
+  pmt::pmt_t port(pmt::intern("port"));
+  for (int i = 0; i < NMSGS; i++){
+    send(nop, port, pmt::mp(pmt::mp("example-msg"), pmt::mp(i)));
+  }
+
+  // Give the messages a chance to be processed
+  boost::this_thread::sleep(boost::posix_time::milliseconds(100));
+
+  tb->stop();
+  tb->wait();
+
+  // Confirm that the nop block received the right number of messages.
+  CPPUNIT_ASSERT_EQUAL(NMSGS, nop->nmsgs_received());
+}