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/* -*- c++ -*- */
/*
* Copyright 2012-2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "message_strobe_impl.h"
#include <gnuradio/io_signature.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <cstdio>
#include <iostream>
#include <stdexcept>
namespace gr {
namespace blocks {
message_strobe::sptr message_strobe::make(pmt::pmt_t msg, long period_ms)
{
return gnuradio::get_initial_sptr(new message_strobe_impl(msg, period_ms));
}
message_strobe_impl::message_strobe_impl(pmt::pmt_t msg, long period_ms)
: block("message_strobe", io_signature::make(0, 0, 0), io_signature::make(0, 0, 0)),
d_finished(false),
d_period_ms(period_ms),
d_msg(msg),
d_port(pmt::mp("strobe"))
{
message_port_register_out(d_port);
message_port_register_in(pmt::mp("set_msg"));
set_msg_handler(
pmt::mp("set_msg"),
std::bind(&message_strobe_impl::set_msg, this, std::placeholders::_1));
}
message_strobe_impl::~message_strobe_impl() {}
bool message_strobe_impl::start()
{
// NOTE: d_finished should be something explicitly thread safe. But since
// nothing breaks on concurrent access, I'll just leave it as bool.
d_finished = false;
d_thread = std::shared_ptr<gr::thread::thread>(
new gr::thread::thread(std::bind(&message_strobe_impl::run, this)));
return block::start();
}
bool message_strobe_impl::stop()
{
// Shut down the thread
d_finished = true;
d_thread->interrupt();
d_thread->join();
return block::stop();
}
void message_strobe_impl::run()
{
while (!d_finished) {
boost::this_thread::sleep(
boost::posix_time::milliseconds(static_cast<long>(d_period_ms)));
if (d_finished) {
return;
}
message_port_pub(d_port, d_msg);
}
}
} /* namespace blocks */
} /* namespace gr */
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