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gnss-sdr/src/algorithms/libs/gnss_sdr_valve.h
2016-05-02 23:46:30 +02:00

68 lines
2.3 KiB
C++

/*!
* \file gnss_sdr_valve.h
* \brief Interface of a GNU Radio block that sends a STOP message to the
* control queue right after a specific number of samples have passed through it.
* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR 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 of the License, or
* (at your option) any later version.
*
* GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_GNSS_SDR_VALVE_H_
#define GNSS_SDR_GNSS_SDR_VALVE_H_
#include <cstring>
#include <gnuradio/sync_block.h>
#include <gnuradio/msg_queue.h>
#include <boost/shared_ptr.hpp>
boost::shared_ptr<gr::block> gnss_sdr_make_valve (size_t sizeof_stream_item,
unsigned long long nitems,
gr::msg_queue::sptr queue);
/*!
* \brief Implementation of a GNU Radio block that sends a STOP message to the
* control queue right after a specific number of samples have passed through it.
*/
class gnss_sdr_valve : public gr::sync_block
{
friend boost::shared_ptr<gr::block> gnss_sdr_make_valve(size_t sizeof_stream_item,
unsigned long long nitems,
gr::msg_queue::sptr queue);
gnss_sdr_valve (size_t sizeof_stream_item,
unsigned long long nitems,
gr::msg_queue::sptr queue);
unsigned long long d_nitems;
unsigned long long d_ncopied_items;
gr::msg_queue::sptr d_queue;
public:
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif /*GNSS_SDR_GNSS_SDR_VALVE_H_*/