3 * Copyright 2005 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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 2, or (at your option)
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.
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.
23 #ifndef INCLUDED_GR_MESSAGE_SOURCE_H
24 #define INCLUDED_GR_MESSAGE_SOURCE_H
26 #include <gr_sync_block.h>
27 #include <gr_message.h>
28 #include <gr_msg_queue.h>
30 class gr_message_source;
31 typedef boost::shared_ptr<gr_message_source> gr_message_source_sptr;
33 gr_message_source_sptr gr_make_message_source (size_t itemsize, int msgq_limit=0);
36 * \brief Turn received messages into a stream
39 class gr_message_source : public gr_sync_block
43 gr_msg_queue_sptr d_msgq;
44 gr_message_sptr d_msg;
45 unsigned d_msg_offset;
48 friend gr_message_source_sptr
49 gr_make_message_source(size_t itemsize, int msgq_limit);
52 gr_message_source (size_t itemsize, int msgq_limit);
55 ~gr_message_source ();
57 gr_msg_queue_sptr msgq() const { return d_msgq; }
59 int work (int noutput_items,
60 gr_vector_const_void_star &input_items,
61 gr_vector_void_star &output_items);
64 #endif /* INCLUDED_GR_MESSAGE_SOURCE_H */