1 /* -*- c++ -*- */ 2 /* 3 * Copyright 2007,2012-2013 Free Software Foundation, Inc. 4 * 5 * This file is part of GNU Radio 6 * 7 * GNU Radio is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 3, or (at your option) 10 * any later version. 11 * 12 * GNU Radio is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with GNU Radio; see the file COPYING. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef INCLUDED_GR_DELAY_IMPL_H 24 #define INCLUDED_GR_DELAY_IMPL_H 25 26 #include <gnuradio/blocks/delay.h> 27 #include <gnuradio/thread/thread.h> 28 29 namespace gr { 30 namespace blocks { 31 32 class delay_impl : public delay 33 { 34 private: 35 void forecast(int noutput_items, gr_vector_int& ninput_items_required); 36 37 size_t d_itemsize; 38 int d_delta; 39 gr::thread::mutex d_mutex_delay; 40 41 public: 42 delay_impl(size_t itemsize, int delay); 43 ~delay_impl(); 44 dly()45 int dly() const { return history() - 1; } 46 void set_dly(int d); 47 48 int general_work(int noutput_items, 49 gr_vector_int& ninput_items, 50 gr_vector_const_void_star& input_items, 51 gr_vector_void_star& output_items); 52 }; 53 54 } /* namespace blocks */ 55 } /* namespace gr */ 56 57 #endif /* INCLUDED_GR_DELAY_IMPL_H */ 58