mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-06-18 11:09:56 +00:00
fc4d8cc7bf
boost::filesystem::temp_directory_path() is only available from Boost 1.45, while Ubuntu 10.10 comes with Boost 1.42. git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@104 64b25241-fba3-4117-9849-534c7e92360d
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
/*!
|
|
* \file gnss_sdr_valve.cc
|
|
* \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.
|
|
* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
|
|
*
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* Copyright (C) 2010-2011 (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/>.
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "gnss_sdr_valve.h"
|
|
#include <gnuradio/gr_io_signature.h>
|
|
#include "control_message_factory.h"
|
|
#include <glog/log_severity.h>
|
|
#include <glog/logging.h>
|
|
|
|
using google::LogMessage;
|
|
|
|
gnss_sdr_valve::gnss_sdr_valve (size_t sizeof_stream_item,
|
|
int nitems,
|
|
gr_msg_queue_sptr queue) : gr_sync_block ("valve",
|
|
gr_make_io_signature (1, 1, sizeof_stream_item),
|
|
gr_make_io_signature (1, 1, sizeof_stream_item)),
|
|
d_nitems (nitems), d_ncopied_items (0), d_queue(queue)
|
|
{}
|
|
|
|
gr_block_sptr gnss_sdr_make_valve (size_t sizeof_stream_item,
|
|
int nitems,
|
|
gr_msg_queue_sptr queue)
|
|
{
|
|
return gr_block_sptr (new gnss_sdr_valve (sizeof_stream_item, nitems, queue));
|
|
}
|
|
|
|
int gnss_sdr_valve::work (int noutput_items,
|
|
gr_vector_const_void_star &input_items,
|
|
gr_vector_void_star &output_items)
|
|
{
|
|
if (d_ncopied_items >= d_nitems)
|
|
{
|
|
|
|
ControlMessageFactory* cmf = new ControlMessageFactory();
|
|
d_queue->handle(cmf->GetQueueMessage(200,0));
|
|
delete cmf;
|
|
|
|
return -1; // Done!
|
|
}
|
|
|
|
unsigned n = std::min (d_nitems - d_ncopied_items, noutput_items);
|
|
|
|
if (n == 0)
|
|
return 0;
|
|
|
|
memcpy (output_items[0], input_items[0], n * input_signature()->sizeof_stream_item (0));
|
|
d_ncopied_items += n;
|
|
|
|
return n;
|
|
}
|