87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/* -*- c++ -*- */
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/*
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* @file
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* @author Piotr Krysik <ptrkrysik@gmail.com>
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* @section LICENSE
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*
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* Gr-gsm 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, or (at your option)
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* any later version.
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*
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* Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include "controlled_const_source_f_impl.h"
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namespace gr {
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namespace gsm {
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controlled_const_source_f::sptr
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controlled_const_source_f::make(float constant)
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{
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return gnuradio::get_initial_sptr
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(new controlled_const_source_f_impl(constant));
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}
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void controlled_const_source_f_impl::set_constant_msg(pmt::pmt_t msg){
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if(pmt::is_real(msg)){
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set_constant(pmt::to_double(msg));
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}
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}
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/*
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* The private constructor
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*/
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controlled_const_source_f_impl::controlled_const_source_f_impl(float constant)
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: gr::sync_block("controlled_const_source_f",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(1, 1, sizeof(float)))
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{
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set_constant(constant);
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message_port_register_in(pmt::mp("constant_msg"));
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set_msg_handler(pmt::mp("constant_msg"), boost::bind(&controlled_const_source_f_impl::set_constant_msg, this, _1));
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}
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/*
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* Our virtual destructor.
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*/
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controlled_const_source_f_impl::~controlled_const_source_f_impl()
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{
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}
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int
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controlled_const_source_f_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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float *optr = (float*)output_items[0];
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float t;
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t = d_constant;
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std::fill_n(optr, noutput_items, t);
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return noutput_items;
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}
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void controlled_const_source_f_impl::set_constant(float constant){
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d_constant = constant;
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}
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} /* namespace gsm */
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} /* namespace gr */
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