1 files changed, 94 insertions, 0 deletions
diff --git a/gr-digital/lib/protocol_formatter_async_impl.cc b/gr-digital/lib/protocol_formatter_async_impl.cc
new file mode 100644
index 0000000000..83a2eedfdd
--- /dev/null
+++ b/gr-digital/lib/protocol_formatter_async_impl.cc
@@ -0,0 +1,94 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2015-2016 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 <volk/volk.h>
+#include <gnuradio/io_signature.h>
+#include "protocol_formatter_async_impl.h"
+#include <stdio.h>
+
+namespace gr {
+  namespace digital {
+
+    protocol_formatter_async::sptr
+    protocol_formatter_async::make(const header_format_base::sptr &format)
+    {
+      return gnuradio::get_initial_sptr
+        (new protocol_formatter_async_impl(format));
+    }
+
+    protocol_formatter_async_impl::protocol_formatter_async_impl(const header_format_base::sptr &format)
+      : block("protocol_formatter_async",
+              io_signature::make(0, 0, 0),
+              io_signature::make(0, 0, 0))
+    {
+      d_format = format;
+
+      d_in_port = pmt::mp("in");
+      d_hdr_port = pmt::mp("header");
+      d_pld_port = pmt::mp("payload");
+
+      message_port_register_in(d_in_port);
+      message_port_register_out(d_hdr_port);
+      message_port_register_out(d_pld_port);
+
+      set_msg_handler(d_in_port,
+                      boost::bind(&protocol_formatter_async_impl::append, this ,_1) );
+    }
+
+    protocol_formatter_async_impl::~protocol_formatter_async_impl()
+    {
+    }
+
+    void
+    protocol_formatter_async_impl::append(pmt::pmt_t msg)
+    {
+      // extract input pdu
+      pmt::pmt_t meta(pmt::car(msg));
+      pmt::pmt_t input(pmt::cdr(msg));
+      pmt::pmt_t header, output;
+
+      size_t pkt_len = 0;
+      const uint8_t* bytes_in = pmt::u8vector_elements(input, pkt_len);
+
+      // Pad the payload with 0's
+      uint8_t* payload = (uint8_t*)volk_malloc(pkt_len*sizeof(uint8_t),
+                                               volk_get_alignment());
+      memcpy(payload, bytes_in, pkt_len*sizeof(uint8_t));
+      output = pmt::init_u8vector(pkt_len, payload);
+      volk_free(payload);
+
+      // Build the header from the input, metadata, and format
+      d_format->format(pkt_len, bytes_in, header, meta);
+
+      // Package and publish
+      pmt::pmt_t hdr_pdu = pmt::cons(meta, header);
+      pmt::pmt_t pld_pdu = pmt::cons(meta, output);
+      message_port_pub(d_hdr_port, hdr_pdu);
+      message_port_pub(d_pld_port, pld_pdu);
+    }
+
+  } /* namespace digital */
+} /* namespace gr */