From 51cbe589f7cd74056be613587e82e8d3b3168e84 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Sat, 16 Mar 2013 23:34:34 -0400
Subject: blocks: moved nop, null source/sink, copy, vector_map to gr-blocks.
---
gr-blocks/lib/null_source_impl.cc | 63 +++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 gr-blocks/lib/null_source_impl.cc
(limited to 'gr-blocks/lib/null_source_impl.cc')
diff --git a/gr-blocks/lib/null_source_impl.cc b/gr-blocks/lib/null_source_impl.cc
new file mode 100644
index 0000000000..81999d0501
--- /dev/null
+++ b/gr-blocks/lib/null_source_impl.cc
@@ -0,0 +1,63 @@
+/* -*- 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 "null_source_impl.h"
+#include <gr_io_signature.h>
+#include <string.h>
+
+namespace gr {
+ namespace blocks {
+
+ null_source::sptr
+ null_source::make(size_t sizeof_stream_item)
+ {
+ return gnuradio::get_initial_sptr
+ (new null_source_impl(sizeof_stream_item));
+ }
+
+ null_source_impl::null_source_impl (size_t sizeof_stream_item)
+ : gr_sync_block("null_source",
+ gr_make_io_signature(0, 0, 0),
+ gr_make_io_signature(1, 1, sizeof_stream_item))
+ {
+ }
+
+ null_source_impl::~null_source_impl()
+ {
+ }
+
+ int
+ null_source_impl::work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ void *optr = (void*)output_items[0];
+ memset(optr, 0, noutput_items * output_signature()->sizeof_stream_item(0));
+ return noutput_items;
+ }
+
+ } /* namespace blocks */
+} /* namespace gr */
--
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