From 51c02f87a08efa4e679630771ec7dd0605e4986a Mon Sep 17 00:00:00 2001
From: Johnathan Corgan <johnathan@corganlabs.com>
Date: Thu, 28 Feb 2013 09:44:24 -0800
Subject: blocks: added gr::blocks::socket_pdu
---
gr-blocks/lib/tcp_connection.cc | 87 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 87 insertions(+)
create mode 100644 gr-blocks/lib/tcp_connection.cc
(limited to 'gr-blocks/lib/tcp_connection.cc')
diff --git a/gr-blocks/lib/tcp_connection.cc b/gr-blocks/lib/tcp_connection.cc
new file mode 100644
index 0000000000..4ead6442d8
--- /dev/null
+++ b/gr-blocks/lib/tcp_connection.cc
@@ -0,0 +1,87 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 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 "tcp_connection.h"
+#include <gr_basic_block.h>
+#include <gr_pdu.h>
+//#include <boost/asio.hpp>
+//#include <boost/bind.hpp>
+
+namespace gr {
+ namespace blocks {
+
+ tcp_connection::sptr tcp_connection::make(boost::asio::io_service& io_service)
+ {
+ return sptr(new tcp_connection(io_service));
+ }
+
+ tcp_connection::tcp_connection(boost::asio::io_service& io_service)
+ : d_socket(io_service)
+ {
+ }
+
+ void
+ tcp_connection::send(pmt::pmt_t vector)
+ {
+ size_t len = pmt::pmt_length(vector);
+ size_t offset(0);
+ boost::array<char, 10000> txbuf;
+ memcpy(&txbuf[0], pmt::pmt_uniform_vector_elements(vector, offset), len);
+ boost::asio::async_write(d_socket, boost::asio::buffer(txbuf, len),
+ boost::bind(&tcp_connection::handle_write, this,
+ boost::asio::placeholders::error,
+ boost::asio::placeholders::bytes_transferred));
+ }
+
+ void
+ tcp_connection::start(gr_basic_block *block)
+ {
+ d_block = block;
+ d_socket.async_read_some(boost::asio::buffer(d_buf),
+ boost::bind(&tcp_connection::handle_read, this,
+ boost::asio::placeholders::error,
+ boost::asio::placeholders::bytes_transferred));
+ }
+
+ void
+ tcp_connection::handle_read(const boost::system::error_code& error, size_t bytes_transferred)
+ {
+ if (!error) {
+ pmt::pmt_t vector = pmt::pmt_init_u8vector(bytes_transferred, (const uint8_t*)&d_buf[0]);
+ pmt::pmt_t pdu = pmt::pmt_cons( pmt::PMT_NIL, vector);
+
+ d_block->message_port_pub(PDU_PORT_ID, pdu);
+
+ d_socket.async_read_some(boost::asio::buffer(d_buf),
+ boost::bind(&tcp_connection::handle_read, this,
+ boost::asio::placeholders::error,
+ boost::asio::placeholders::bytes_transferred));
+
+ }
+ }
+
+ } /* namespace blocks */
+}/* namespace gr */
--
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