1 files changed, 100 insertions, 0 deletions
diff --git a/gr-blocks/lib/nop_impl.cc b/gr-blocks/lib/nop_impl.cc
new file mode 100644
index 0000000000..387eda0baf
--- /dev/null
+++ b/gr-blocks/lib/nop_impl.cc
@@ -0,0 +1,100 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2010,2013 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 "nop_impl.h"
+#include <gr_io_signature.h>
+#include <boost/bind.hpp>
+
+namespace gr {
+  namespace blocks {
+
+    nop::sptr
+    nop::make(size_t sizeof_stream_item)
+    {
+      return gnuradio::get_initial_sptr
+        (new nop_impl(sizeof_stream_item));
+    }
+
+    nop_impl::nop_impl (size_t sizeof_stream_item)
+      : gr_block("nop",
+                 gr_make_io_signature(0, -1, sizeof_stream_item),
+                 gr_make_io_signature(0, -1, sizeof_stream_item)),
+        d_nmsgs_recvd(0)
+    {
+      // Arrange to have count_received_msgs called when messages are received.
+      message_port_register_in(pmt::mp("port"));
+      set_msg_handler(pmt::mp("port"), boost::bind(&nop_impl::count_received_msgs, this, _1));
+    }
+
+    nop_impl::~nop_impl()
+    {
+    }
+
+    // Trivial message handler that just counts them.
+    // (N.B., This feature is used in qa_set_msg_handler)
+    void
+    nop_impl::count_received_msgs(pmt::pmt_t msg)
+    {
+      d_nmsgs_recvd++;
+    }
+
+    int
+    nop_impl::general_work(int noutput_items,
+                           gr_vector_int &ninput_items,
+                           gr_vector_const_void_star &input_items,
+                           gr_vector_void_star &output_items)
+    {
+      // eat any input that's available
+      for(unsigned i = 0; i < ninput_items.size (); i++)
+        consume(i, ninput_items[i]);
+
+      return noutput_items;
+    }
+
+    void
+    nop_impl::setup_rpc()
+    {
+#ifdef GR_CTRLPORT
+      d_rpc_vars.push_back(
+        rpcbasic_sptr(new rpcbasic_register_get<nop, int>(
+          alias(), "test",
+          &nop::ctrlport_test,
+          pmt::mp(-256), pmt::mp(255), pmt::mp(0),
+          "", "Simple testing variable",
+          RPC_PRIVLVL_MIN, DISPNULL)));
+
+      d_rpc_vars.push_back(
+        rpcbasic_sptr(new rpcbasic_register_set<nop, int>(
+          alias(), "test",
+          &nop::set_ctrlport_test,
+          pmt::mp(-256), pmt::mp(255), pmt::mp(0),
+          "", "Simple testing variable",
+          RPC_PRIVLVL_MIN, DISPNULL)));
+#endif /* GR_CTRLPORT */
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */