GNU Radio 3.6.4 C++ API
delay_impl.h
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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
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10  * any later version.
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12  * GNU Radio is distributed in the hope that it will be useful,
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15  * GNU General Public License for more details.
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17  * You should have received a copy of the GNU General Public License
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22 
23 #ifndef INCLUDED_GR_DELAY_IMPL_H
24 #define INCLUDED_GR_DELAY_IMPL_H
25 
26 #include <blocks/delay.h>
27 #include <gruel/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,
36  gr_vector_int &ninput_items_required);
37 
38  size_t d_itemsize;
39  int d_delta;
40  gruel::mutex d_mutex_delay;
41 
42  public:
43  delay_impl(size_t itemsize, int delay);
44  ~delay_impl();
45 
46  int dly() const { return history()-1; }
47  void set_dly(int d);
48 
49  int general_work(int noutput_items,
50  gr_vector_int &ninput_items,
51  gr_vector_const_void_star &input_items,
52  gr_vector_void_star &output_items);
53  };
54 
55  } /* namespace blocks */
56 } /* namespace gr */
57 
58 #endif /* INCLUDED_GR_DELAY_IMPL_H */