1 files changed, 102 insertions, 0 deletions
diff --git a/gr-zeromq/lib/rep_sink_impl.cc b/gr-zeromq/lib/rep_sink_impl.cc
new file mode 100644
index 0000000000..a8fd5881e5
--- /dev/null
+++ b/gr-zeromq/lib/rep_sink_impl.cc
@@ -0,0 +1,102 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2013,2014 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio.
+ *
+ * This 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.
+ *
+ * This software 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 software; 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 <gnuradio/io_signature.h>
+#include "rep_sink_impl.h"
+
+namespace gr {
+  namespace zeromq {
+
+    rep_sink::sptr
+    rep_sink::make(size_t itemsize, size_t vlen, char *address, int timeout)
+    {
+      return gnuradio::get_initial_sptr
+        (new rep_sink_impl(itemsize, vlen, address, timeout));
+    }
+
+    rep_sink_impl::rep_sink_impl(size_t itemsize, size_t vlen, char *address, int timeout)
+      : gr::sync_block("rep_sink",
+                       gr::io_signature::make(1, 1, itemsize * vlen),
+                       gr::io_signature::make(0, 0, 0)),
+        d_itemsize(itemsize), d_vlen(vlen), d_timeout(timeout)
+    {
+      int major, minor, patch;
+      zmq::version (&major, &minor, &patch);
+      if (major < 3) {
+        d_timeout = timeout*1000;
+      }
+      d_context = new zmq::context_t(1);
+      d_socket = new zmq::socket_t(*d_context, ZMQ_REP);
+      int time = 0;
+      d_socket->setsockopt(ZMQ_LINGER, &time, sizeof(time));
+      d_socket->bind (address);
+    }
+
+    rep_sink_impl::~rep_sink_impl()
+    {
+      d_socket->close();
+      delete d_socket;
+      delete d_context;
+    }
+
+    int
+    rep_sink_impl::work(int noutput_items,
+                        gr_vector_const_void_star &input_items,
+                        gr_vector_void_star &output_items)
+    {
+      const char *in = (const char *) input_items[0];
+
+      zmq::pollitem_t items[] = { { *d_socket, 0, ZMQ_POLLIN, 0 } };
+      zmq::poll (&items[0], 1, d_timeout);
+
+      //  If we got a reply, process
+      if (items[0].revents & ZMQ_POLLIN) {
+        // receive data request
+        zmq::message_t request;
+        d_socket->recv(&request);
+        int req_output_items = *(static_cast<int*>(request.data()));
+
+        // create message copy and send
+        if (noutput_items < req_output_items) {
+          zmq::message_t msg(d_itemsize*d_vlen*noutput_items);
+          memcpy((void *)msg.data(), in, d_itemsize*d_vlen*noutput_items);
+          d_socket->send(msg);
+
+          return noutput_items;
+        }
+        else {
+          zmq::message_t msg(d_itemsize*d_vlen*req_output_items);
+          memcpy((void *)msg.data(), in, d_itemsize*d_vlen*req_output_items);
+          d_socket->send(msg);
+
+          return req_output_items;
+        }
+      }
+
+      return 0;
+    }
+  } /* namespace zeromq */
+} /* namespace gr */