Christoph Leitner
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
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* Copyright (C) 2013 Christoph Leitner <c.leitner@student.uibk.ac.at>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "rtt_measure_impl.h"
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#include <gnuradio/io_signature.h>
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using namespace gr::foo;
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rtt_measure_impl::rtt_measure_impl(unsigned long interval)
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: block("rtt_measure",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(1, 1, sizeof(uint8_t))),
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d_interval(interval), d_thread(&rtt_measure_impl::run, this),
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d_stop(false)
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{
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message_port_register_in(pmt::mp("in"));
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message_port_register_out(pmt::mp("out"));
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}
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rtt_measure_impl::~rtt_measure_impl() {
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d_stop.store(true);
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d_thread.interrupt(); //if thread was sleeping
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d_thread.join();
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}
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void
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rtt_measure_impl::run()
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{
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// flow graph startup delay
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boost::this_thread::sleep(boost::posix_time::milliseconds(500));
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std::string text("fnord");
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pmt::pmt_t msg = pmt::make_blob(text.data(), text.length());
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while(!d_stop.load()){
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gr::thread::scoped_lock lock(d_mutex);
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message_port_pub(pmt::mp("out"), pmt::cons(pmt::PMT_NIL, msg));
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d_start_time = boost::posix_time::microsec_clock::local_time();
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lock.unlock();
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boost::this_thread::sleep(boost::posix_time::milliseconds(d_interval));
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}
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}
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int
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rtt_measure_impl::general_work(int noutput, gr_vector_int& ninput_items,
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gr_vector_const_void_star& input_items,
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gr_vector_void_star& output_items )
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{
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gr_complex *out = (gr_complex*)output_items[0];
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pmt::pmt_t msg(delete_head_nowait(pmt::mp("in")));
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if(!msg.get()){
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return 0;
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}
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boost::posix_time::time_duration dur =
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boost::posix_time::microsec_clock::local_time() - start_time();
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std::string time_string(std::to_string(dur.total_microseconds()) + "\n");
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std::cout << time_string;
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if(pmt::is_eof_object(msg)) {
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return -1;
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} else if(!pmt::is_pair(msg)) {
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throw std::invalid_argument("only PDU messages allowed");
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}
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int to_copy = time_string.length();
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std::memcpy(out, time_string.data(), to_copy);
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return to_copy;
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}
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boost::posix_time::ptime
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rtt_measure_impl::start_time()
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{
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gr::thread::scoped_lock(d_mutex);
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return d_start_time;
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}
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rtt_measure::sptr
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rtt_measure::make(unsigned long interval)
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{
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return gnuradio::get_initial_sptr(new rtt_measure_impl(interval));
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} |