gr-baz Package
gr_message_sink.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_MESSAGE_SINK_H
24 #define INCLUDED_GR_MESSAGE_SINK_H
25 
26 #include <gr_core_api.h>
27 #include <gr_sync_block.h>
28 #include <gr_message.h>
29 #include <gr_msg_queue.h>
30 
31 class gr_message_sink;
33 
35  gr_msg_queue_sptr msgq,
36  bool dont_block);
37 
38 /*!
39  * \brief Gather received items into messages and insert into msgq
40  * \ingroup sink_blk
41  */
43 {
44  private:
45  size_t d_itemsize;
46  gr_msg_queue_sptr d_msgq;
47  bool d_dont_block;
48 
50  gr_make_message_sink(size_t itemsize, gr_msg_queue_sptr msgq, bool dont_block);
51 
52  protected:
53  gr_message_sink (size_t itemsize, gr_msg_queue_sptr msgq, bool dont_block);
54 
55  public:
56  ~gr_message_sink ();
57 
58  int work (int noutput_items,
59  gr_vector_const_void_star &input_items,
60  gr_vector_void_star &output_items);
61 };
62 
63 #endif /* INCLUDED_GR_MESSAGE_SINK_H */