Added C++ version of burst type filter
diff --git a/lib/flow_control/burst_type_filter_impl.cc b/lib/flow_control/burst_type_filter_impl.cc
new file mode 100644
index 0000000..542a004
--- /dev/null
+++ b/lib/flow_control/burst_type_filter_impl.cc
@@ -0,0 +1,104 @@
+/* -*- c++ -*- */
+/* @file
+ * @author (C) 2017 by Piotr Krysik <ptrkrysik@gmail.com>
+ * @section LICENSE
+ *
+ * Gr-gsm 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.
+ *
+ * Gr-gsm 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 gr-gsm; 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 <gnuradio/io_signature.h>
+#include "burst_type_filter_impl.h"
+#include <stdio.h>
+#include <grgsm/endian.h>
+#include <grgsm/gsmtap.h>
+
+
+namespace gr {
+ namespace gsm {
+
+ burst_type_filter::sptr
+ burst_type_filter::make(const std::vector<uint8_t> & selected_burst_types)
+ {
+ return gnuradio::get_initial_sptr
+ (new burst_type_filter_impl(selected_burst_types));
+ }
+
+ /*
+ * The private constructor
+ */
+ burst_type_filter_impl::burst_type_filter_impl(const std::vector<uint8_t> & selected_burst_types)
+ : gr::block("burst_type_filter",
+ gr::io_signature::make(0, 0, 0),
+ gr::io_signature::make(0, 0, 0)),
+ d_filter_policy(FILTER_POLICY_DEFAULT)
+ {
+ set_selected_burst_types(selected_burst_types);
+
+ message_port_register_in(pmt::mp("in"));
+ message_port_register_out(pmt::mp("out"));
+
+ set_msg_handler(pmt::mp("in"), boost::bind(&burst_type_filter_impl::process_burst, this, _1));
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ burst_type_filter_impl::~burst_type_filter_impl() {}
+
+ void burst_type_filter_impl::process_burst(pmt::pmt_t msg)
+ {
+ if (d_filter_policy == FILTER_POLICY_DROP_ALL)
+ return;
+
+ if (d_filter_policy == FILTER_POLICY_PASS_ALL) {
+ message_port_pub(pmt::mp("out"), msg);
+ return;
+ }
+
+ gsmtap_hdr * header = (gsmtap_hdr *)pmt::blob_data(pmt::cdr(msg));
+// std::cout << "header->type: " << (int)(header->sub_type) << std::endl;
+ if (std::find(d_selected_burst_types.begin(), d_selected_burst_types.end(), header->sub_type) != d_selected_burst_types.end()) //check if burst type is listed in burst types to pass
+ {
+ message_port_pub(pmt::mp("out"), msg);
+ }
+ }
+
+ /* Filtering policy */
+ filter_policy
+ burst_type_filter_impl::get_policy(void)
+ {
+ return d_filter_policy;
+ }
+
+ filter_policy
+ burst_type_filter_impl::set_policy(filter_policy policy)
+ {
+ d_filter_policy = policy;
+ return d_filter_policy;
+ }
+
+ void
+ burst_type_filter_impl::set_selected_burst_types(const std::vector<uint8_t> & selected_burst_types)
+ {
+ d_selected_burst_types.assign(selected_burst_types.begin(), selected_burst_types.end());
+ }
+ } /* namespace gsm */
+} /* namespace gr */