GNU Radio 3.4.0 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 3, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 51 Franklin Street, 00020 * Boston, MA 02110-1301, USA. 00021 */ 00022 00023 #ifndef INCLUDED_GR_THRESHOLD_FF_H 00024 #define INCLUDED_GR_THRESHOLD_FF_H 00025 00026 #include <gr_sync_block.h> 00027 00028 class gr_threshold_ff; 00029 typedef boost::shared_ptr<gr_threshold_ff> gr_threshold_ff_sptr; 00030 00031 gr_threshold_ff_sptr gr_make_threshold_ff (float lo, float hi, float initial_state=0); 00032 00033 /*! 00034 * \brief Please fix my documentation 00035 * \ingroup misc_blk 00036 */ 00037 class gr_threshold_ff : public gr_sync_block 00038 { 00039 friend gr_threshold_ff_sptr gr_make_threshold_ff (float lo, float hi, float initial_state); 00040 00041 float d_lo,d_hi; // the constant 00042 float d_last_state; 00043 gr_threshold_ff (float lo, float hi, float initial_state); 00044 00045 public: 00046 float lo () const { return d_lo; } 00047 void set_lo (float lo) { d_lo = lo; } 00048 float hi () const { return d_hi; } 00049 void set_hi (float hi) { d_hi = hi; } 00050 float last_state () const { return d_last_state; } 00051 void set_last_state (float last_state) { d_last_state = last_state; } 00052 00053 int work (int noutput_items, 00054 gr_vector_const_void_star &input_items, 00055 gr_vector_void_star &output_items); 00056 }; 00057 00058 #endif