GNU Radio 3.6.1 C++ API
gr_threshold_ff.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004 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,
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21  */
22 
23 #ifndef INCLUDED_GR_THRESHOLD_FF_H
24 #define INCLUDED_GR_THRESHOLD_FF_H
25 
26 #include <gr_core_api.h>
27 #include <gr_sync_block.h>
28 
29 class gr_threshold_ff;
31 
32 GR_CORE_API gr_threshold_ff_sptr gr_make_threshold_ff (float lo, float hi, float initial_state=0);
33 
34 /*!
35  * \brief Please fix my documentation
36  * \ingroup misc_blk
37  */
39 {
40  friend GR_CORE_API gr_threshold_ff_sptr gr_make_threshold_ff (float lo, float hi, float initial_state);
41 
42  float d_lo,d_hi; // the constant
43  float d_last_state;
44  gr_threshold_ff (float lo, float hi, float initial_state);
45 
46  public:
47  float lo () const { return d_lo; }
48  void set_lo (float lo) { d_lo = lo; }
49  float hi () const { return d_hi; }
50  void set_hi (float hi) { d_hi = hi; }
51  float last_state () const { return d_last_state; }
52  void set_last_state (float last_state) { d_last_state = last_state; }
53 
54  int work (int noutput_items,
55  gr_vector_const_void_star &input_items,
56  gr_vector_void_star &output_items);
57 };
58 
59 #endif