From 9833f3fb80c788d740dc1328899d50165cfdfa90 Mon Sep 17 00:00:00 2001
From: Johnathan Corgan <johnathan@corganlabs.com>
Date: Mon, 21 Apr 2014 11:27:54 -0700
Subject: zeromq: renamed source_pushpull to pull_source
---
gr-zeromq/lib/pull_source_impl.cc | 96 +++++++++++++++++++++++++++++++++++++++
1 file changed, 96 insertions(+)
create mode 100644 gr-zeromq/lib/pull_source_impl.cc
(limited to 'gr-zeromq/lib/pull_source_impl.cc')
diff --git a/gr-zeromq/lib/pull_source_impl.cc b/gr-zeromq/lib/pull_source_impl.cc
new file mode 100644
index 0000000000..637b529a72
--- /dev/null
+++ b/gr-zeromq/lib/pull_source_impl.cc
@@ -0,0 +1,96 @@
+/* -*- 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 "pull_source_impl.h"
+
+namespace gr {
+ namespace zeromq {
+
+ pull_source::sptr
+ pull_source::make(size_t itemsize, char *address, float timeout)
+ {
+ return gnuradio::get_initial_sptr
+ (new pull_source_impl(itemsize, address, timeout));
+ }
+
+ pull_source_impl::pull_source_impl(size_t itemsize, char *address, float timeout)
+ : gr::sync_block("pull_source",
+ gr::io_signature::make(0, 0, 0),
+ gr::io_signature::make(1, 1, itemsize)),
+ d_itemsize(itemsize)
+ {
+ d_timeout = timeout >=0 ? (int)(timeout*1e6) : 0;
+ d_context = new zmq::context_t(1);
+ d_socket = new zmq::socket_t(*d_context, ZMQ_PULL);
+ d_socket->connect (address);
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ pull_source_impl::~pull_source_impl()
+ {
+ delete d_socket;
+ delete d_context;
+ }
+
+ int
+ pull_source_impl::work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ char *out = (char*)output_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
+ zmq::message_t msg;
+ d_socket->recv(&msg);
+
+ // Copy to ouput buffer and return
+ if (msg.size() >= d_itemsize*noutput_items) {
+ memcpy(out, (void *)msg.data(), d_itemsize*noutput_items);
+
+ return noutput_items;
+ }
+ else {
+ memcpy(out, (void *)msg.data(), msg.size());
+
+ return msg.size()/d_itemsize;
+ }
+ }
+ else {
+ return 0; // FIXME: someday when the scheduler does all the poll/selects
+ }
+ }
+
+ } /* namespace zeromq */
+} /* namespace gr */
--
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