GNU Radio 3.6.5.1 C++ API
message_source_impl.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005,2013 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
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_MESSAGE_SOURCE_IMPL_H
24 #define INCLUDED_GR_MESSAGE_SOURCE_IMPL_H
25 
26 #include <blocks/message_source.h>
27 #include <gr_message.h>
28 
29 namespace gr {
30  namespace blocks {
31 
33  {
34  private:
35  size_t d_itemsize;
36  gr_msg_queue_sptr d_msgq;
37  gr_message_sptr d_msg;
38  unsigned d_msg_offset;
39  bool d_eof;
40 
41  public:
42  message_source_impl(size_t itemsize, int msgq_limit);
43  message_source_impl(size_t itemsize, gr_msg_queue_sptr msgq);
45 
46  gr_msg_queue_sptr msgq() const { return d_msgq; }
47 
48  int work(int noutput_items,
49  gr_vector_const_void_star &input_items,
50  gr_vector_void_star &output_items);
51  };
52 
53  } /* namespace blocks */
54 } /* namespace gr */
55 
56 #endif /* INCLUDED_GR_MESSAGE_SOURCE_IMPL_H */