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https://github.com/miek/inspectrum.git
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76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* Copyright (C) 2015, Mike Walters <mike@flomp.net>
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*
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* This file is part of inspectrum.
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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 "memory_sink_impl.h"
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#include <gnuradio/io_signature.h>
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#include <stdexcept>
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namespace gr {
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namespace blocks {
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memory_sink::sptr
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memory_sink::make(size_t itemsize)
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{
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return gnuradio::get_initial_sptr
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(new memory_sink_impl(itemsize));
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}
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memory_sink_impl::memory_sink_impl(size_t itemsize)
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: sync_block("memory_sink",
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io_signature::make(1, 1, itemsize),
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io_signature::make(0, 0, 0)),
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d_itemsize(itemsize)
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{
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}
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memory_sink_impl::~memory_sink_impl()
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{
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}
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void
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memory_sink_impl::set_sink(void *sink, size_t length)
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{
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d_sink = sink;
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d_length = length;
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d_ptr = 0;
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}
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int
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memory_sink_impl::work(int noutput_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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char *inbuf = (char*)input_items[0];
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long nwritten = 0;
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if(!d_sink)
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return noutput_items;
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nwritten = std::min((long)(d_length - d_ptr), (long)noutput_items);
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if (nwritten >= 0) {
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memcpy((char*)d_sink + d_ptr * d_itemsize, inbuf, nwritten * d_itemsize);
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}
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d_ptr += nwritten;
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return (nwritten == 0) ? -1 : nwritten;
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}
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} /* namespace blocks */
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} /* namespace gr */
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