Added block burst_source_qa for unit testing of burst-based blocks
diff --git a/lib/misc_utils/burst_source_qa_impl.cc b/lib/misc_utils/burst_source_qa_impl.cc
new file mode 100644
index 0000000..e7438f7
--- /dev/null
+++ b/lib/misc_utils/burst_source_qa_impl.cc
@@ -0,0 +1,161 @@
+/* -*- c++ -*- */
+/* @file
+ * @author Roman Khassraf <rkhassraf@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_source_qa_impl.h"
+#include "stdio.h"
+#include <grgsm/gsmtap.h>
+#include <grgsm/endian.h>
+
+#define PMT_SIZE 174
+
+namespace gr {
+ namespace gsm {
+
+ burst_source_qa::sptr
+ burst_source_qa::make(const std::vector<int> &framenumbers,
+ const std::vector<int> ×lots,
+ const std::vector<std::string> &burst_data)
+ {
+ return gnuradio::get_initial_sptr
+ (new burst_source_qa_impl(framenumbers, timeslots, burst_data));
+ }
+
+ /*
+ * The private constructor
+ */
+ burst_source_qa_impl::burst_source_qa_impl(const std::vector<int> &framenumbers,
+ const std::vector<int> ×lots,
+ const std::vector<std::string> &burst_data)
+ : gr::block("burst_source_qa",
+ gr::io_signature::make(0, 0, 0),
+ gr::io_signature::make(0, 0, 0)),
+ d_finished(false)
+ {
+ message_port_register_out(pmt::mp("out"));
+ set_framenumbers(framenumbers);
+ set_timeslots(timeslots);
+ set_burst_data(burst_data);
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ burst_source_qa_impl::~burst_source_qa_impl()
+ {
+ if (d_finished == false){
+ d_finished = true;
+ }
+ }
+
+ void burst_source_qa_impl::set_framenumbers(const std::vector<int> &framenumbers)
+ {
+ d_framenumbers = framenumbers;
+ }
+
+ void burst_source_qa_impl::set_timeslots(const std::vector<int> ×lots)
+ {
+ d_timeslots = timeslots;
+ }
+
+ void burst_source_qa_impl::set_burst_data(const std::vector<std::string> &burst_data)
+ {
+ d_burst_data = burst_data;
+ }
+
+ bool burst_source_qa_impl::start()
+ {
+ d_finished = false;
+ d_thread = boost::shared_ptr<gr::thread::thread>
+ (new gr::thread::thread(boost::bind(&burst_source_qa_impl::run, this)));
+ return block::start();
+ }
+
+ bool burst_source_qa_impl::stop()
+ {
+ d_finished = true;
+ d_thread->interrupt();
+ d_thread->join();
+ return block::stop();
+ }
+
+ bool burst_source_qa_impl::finished()
+ {
+ return d_finished;
+ }
+
+ void burst_source_qa_impl::run()
+ {
+ char *unserialized = (char*)malloc(sizeof(char) * PMT_SIZE);
+
+ for (int i=0; i<d_burst_data.size(); i++)
+ {
+ if (d_burst_data[i].length() == BURST_SIZE &&
+ d_timeslots[i] >= 0 && d_timeslots[i] <= 7 &&
+ d_framenumbers[i] >= 0 && d_framenumbers[i] <= (26 * 51 * 2048 - 1))
+ {
+ boost::scoped_ptr<gsmtap_hdr> tap_header(new gsmtap_hdr());
+
+ tap_header->version = GSMTAP_VERSION;
+ tap_header->hdr_len = sizeof(gsmtap_hdr)/4;
+ tap_header->type = GSMTAP_TYPE_UM_BURST;
+ tap_header->timeslot = d_timeslots[i];
+ tap_header->frame_number = htobe32(d_framenumbers[i]);
+ tap_header->sub_type = GSMTAP_BURST_NORMAL;
+ tap_header->arfcn = 0;
+ tap_header->signal_dbm = 0;
+ tap_header->snr_db = 0;
+
+ uint8_t burst[BURST_SIZE];
+
+ for (int j=0; j<BURST_SIZE; j++)
+ {
+ if (d_burst_data[i][j] == '0')
+ {
+ burst[j] = 0;
+ }
+ else
+ {
+ burst[j] = 1;
+ }
+ }
+
+ int8_t header_plus_burst[sizeof(gsmtap_hdr) + BURST_SIZE];
+ memcpy(header_plus_burst, tap_header.get(), sizeof(gsmtap_hdr));
+ memcpy(header_plus_burst + sizeof(gsmtap_hdr), burst, BURST_SIZE);
+
+ pmt::pmt_t blob_header_plus_burst = pmt::make_blob(header_plus_burst, sizeof(gsmtap_hdr) + BURST_SIZE);
+ pmt::pmt_t msg = pmt::cons(pmt::PMT_NIL, blob_header_plus_burst);
+
+ message_port_pub(pmt::mp("out"), msg);
+ }
+ }
+ post(pmt::mp("system"), pmt::cons(pmt::mp("done"), pmt::from_long(1)));
+ }
+ } /* namespace gsm */
+} /* namespace gr */
+
+