GNU Radio 3.6.4.1 C++ API
gr_dispatcher.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005 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_DISPATCHER_H
24 #define INCLUDED_GR_DISPATCHER_H
25 
26 #include <gr_core_api.h>
27 #include <gr_select_handler.h>
28 #include <vector>
29 
30 class gr_dispatcher;
32 
35 
36 /*!
37  * \brief invoke callbacks based on select.
38  * \ingroup internal
39  *
40  * \sa gr_select_handler
41  */
43 {
44  gr_dispatcher();
46 
47  std::vector<gr_select_handler_sptr> d_handler;
48  int d_max_index;
49 
50 public:
51  ~gr_dispatcher();
52 
53  bool add_handler(gr_select_handler_sptr handler);
54  bool del_handler(gr_select_handler_sptr handler);
55  bool del_handler(gr_select_handler *handler);
56 
57  /*!
58  * \brief Event dispatching loop.
59  *
60  * Enter a polling loop that only terminates after all gr_select_handlers
61  * have been removed. \p timeout sets the timeout parameter to the select()
62  * call, measured in seconds.
63  *
64  * \param timeout maximum number of seconds to block in select.
65  */
66  void loop(double timeout=10);
67 };
68 
69 #endif /* INCLUDED_GR_DISPATCHER_H */