GNU Radio Manual and C++ API Reference  3.7.9.2
The Free & Open Software Radio Ecosystem
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
message_source.h
Go to the documentation of this file.
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,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_GR_MESSAGE_SOURCE_H
24 #define INCLUDED_GR_MESSAGE_SOURCE_H
25 
26 #include <gnuradio/blocks/api.h>
27 #include <gnuradio/sync_block.h>
28 #include <gnuradio/msg_queue.h>
29 
30 namespace gr {
31  namespace blocks {
32 
33  /*!
34  * \brief Turn received messages into a stream
35  * \ingroup message_tools_blk
36  */
37  class BLOCKS_API message_source : virtual public sync_block
38  {
39  public:
40  // gr::blocks::message_source::sptr
41  typedef boost::shared_ptr<message_source> sptr;
42 
43  static sptr make(size_t itemsize, int msgq_limit=0);
44  static sptr make(size_t itemsize, gr::msg_queue::sptr msgq);
45  static sptr make(size_t itemsize, gr::msg_queue::sptr msgq,
46  const std::string& lengthtagname);
47 
48  virtual gr::msg_queue::sptr msgq() const = 0;
49  };
50 
51  } /* namespace blocks */
52 } /* namespace gr */
53 
54 #endif /* INCLUDED_GR_MESSAGE_SOURCE_H */
Turn received messages into a stream.
Definition: message_source.h:37
boost::shared_ptr< msg_queue > sptr
Definition: msg_queue.h:47
Include this header to use the message passing features.
Definition: logger.h:131
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
boost::shared_ptr< message_source > sptr
Definition: message_source.h:41
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
BLOCKS_API size_t itemsize(vector_type type)