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/* -*- c++ -*- */
/*
* Copyright 2010,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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.
*
* GNU Radio 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 GNU Radio; 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 "annotator_raw_impl.h"
#include <gr_io_signature.h>
#include <string.h>
#include <iostream>
#include <iomanip>
#include <stdexcept>
using namespace pmt;
namespace gr {
namespace blocks {
annotator_raw::sptr
annotator_raw::make(size_t sizeof_stream_item)
{
return gnuradio::get_initial_sptr
(new annotator_raw_impl(sizeof_stream_item));
}
annotator_raw_impl::annotator_raw_impl(size_t sizeof_stream_item)
: gr_sync_block("annotator_raw",
gr_make_io_signature(1, 1, sizeof_stream_item),
gr_make_io_signature(1, 1, sizeof_stream_item)),
d_itemsize(sizeof_stream_item)
{
set_tag_propagation_policy(TPP_ONE_TO_ONE);
set_relative_rate(1.0);
}
void annotator_raw_impl::add_tag(uint64_t offset, pmt_t key, pmt_t val)
{
gruel::scoped_lock l(d_mutex);
gr_tag_t tag;
tag.srcid = pmt::intern(name());
tag.key = key;
tag.value = val;
tag.offset = offset;
// add our new tag
d_queued_tags.push_back(tag);
// make sure our tags are in offset order
std::sort(d_queued_tags.begin(), d_queued_tags.end(),
gr_tag_t::offset_compare);
// make sure we are not adding an item in the past!
if(tag.offset > nitems_read(0)) {
throw std::runtime_error("annotator_raw::add_tag: item added too far in the past\n.");
}
}
annotator_raw_impl::~annotator_raw_impl()
{
}
int
annotator_raw_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
gruel::scoped_lock l(d_mutex);
const char *in = (const char*)input_items[0];
char *out = (char*)output_items[0];
uint64_t start_N = nitems_read(0);
uint64_t end_N = start_N + (uint64_t)(noutput_items);
// locate queued tags that fall in this range and insert them when appropriate
std::vector<gr_tag_t>::iterator i = d_queued_tags.begin();
while( i != d_queued_tags.end() ) {
if( (*i).offset >= start_N && (*i).offset < end_N) {
add_item_tag(0, (*i).offset,(*i).key, (*i).value, (*i).srcid);
i = d_queued_tags.erase(i);
}
else {
break;
}
}
// copy data across
memcpy(out, in, noutput_items*d_itemsize);
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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