1 files changed, 83 insertions, 0 deletions
diff --git a/host/lib/transport/udp_simple.cpp b/host/lib/transport/udp_simple.cpp
new file mode 100644
index 000000000..ed778fbf4
--- /dev/null
+++ b/host/lib/transport/udp_simple.cpp
@@ -0,0 +1,83 @@
+//
+// Copyright 2010-2011 Ettus Research LLC
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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 program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "udp_common.hpp"
+#include <uhd/transport/udp_simple.hpp>
+#include <uhd/utils/log.hpp>
+#include <boost/format.hpp>
+
+using namespace uhd::transport;
+namespace asio = boost::asio;
+
+/***********************************************************************
+ * UDP simple implementation: connected and broadcast
+ **********************************************************************/
+class udp_simple_impl : public udp_simple{
+public:
+    udp_simple_impl(
+        const std::string &addr, const std::string &port, bool bcast, bool connect
+    ):_connected(connect){
+        UHD_LOG << boost::format("Creating udp transport for %s %s") % addr % port << std::endl;
+
+        //resolve the address
+        asio::ip::udp::resolver resolver(_io_service);
+        asio::ip::udp::resolver::query query(asio::ip::udp::v4(), addr, port);
+        _receiver_endpoint = *resolver.resolve(query);
+
+        //create and open the socket
+        _socket = socket_sptr(new asio::ip::udp::socket(_io_service));
+        _socket->open(asio::ip::udp::v4());
+
+        //allow broadcasting
+        _socket->set_option(asio::socket_base::broadcast(bcast));
+
+        //connect the socket
+        if (connect) _socket->connect(_receiver_endpoint);
+
+    }
+
+    size_t send(const asio::const_buffer &buff){
+        if (_connected) return _socket->send(asio::buffer(buff));
+        return _socket->send_to(asio::buffer(buff), _receiver_endpoint);
+    }
+
+    size_t recv(const asio::mutable_buffer &buff, double timeout){
+        if (not wait_for_recv_ready(_socket->native(), timeout)) return 0;
+        return _socket->receive(asio::buffer(buff));
+    }
+
+private:
+    bool                    _connected;
+    asio::io_service        _io_service;
+    socket_sptr             _socket;
+    asio::ip::udp::endpoint _receiver_endpoint;
+};
+
+/***********************************************************************
+ * UDP public make functions
+ **********************************************************************/
+udp_simple::sptr udp_simple::make_connected(
+    const std::string &addr, const std::string &port
+){
+    return sptr(new udp_simple_impl(addr, port, false, true /* no bcast, connect */));
+}
+
+udp_simple::sptr udp_simple::make_broadcast(
+    const std::string &addr, const std::string &port
+){
+    return sptr(new udp_simple_impl(addr, port, true, false /* bcast, no connect */));
+}