GNU Radio 3.6.4 C++ API
gr_tpb_detail.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008,2009 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 along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 #ifndef INCLUDED_GR_TPB_DETAIL_H
22 #define INCLUDED_GR_TPB_DETAIL_H
23 
24 #include <gr_core_api.h>
25 #include <gruel/thread.h>
26 #include <deque>
27 #include <gruel/pmt.h>
28 
29 class gr_block_detail;
30 
31 /*!
32  * \brief used by thread-per-block scheduler
33  */
35 
36  gruel::mutex mutex; //< protects all vars
41 
42 public:
44  : input_changed(false), output_changed(false) { }
45 
46  //! Called by us to tell all our upstream blocks that their output may have changed.
47  void notify_upstream(gr_block_detail *d);
48 
49  //! Called by us to tell all our downstream blocks that their input may have changed.
50  void notify_downstream(gr_block_detail *d);
51 
52  //! Called by us to notify both upstream and downstream
53  void notify_neighbors(gr_block_detail *d);
54 
55  //! Called by pmt msg posters
56  void notify_msg(){
57  input_cond.notify_one();
58  output_cond.notify_one();
59  }
60 
61  //! Called by us
62  void clear_changed()
63  {
65  input_changed = false;
66  output_changed = false;
67  }
68 
69 private:
70 
71  //! Used by notify_downstream
72  void set_input_changed()
73  {
75  input_changed = true;
76  input_cond.notify_one();
77  }
78 
79  //! Used by notify_upstream
80  void set_output_changed()
81  {
83  output_changed = true;
84  output_cond.notify_one();
85  }
86 
87 };
88 
89 #endif /* INCLUDED_GR_TPB_DETAIL_H */