1 files changed, 87 insertions, 0 deletions
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 */