/usr/include/gnuradio/swig/msg_queue.i is in gnuradio-dev 3.7.9.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | /* -*- c++ -*- */
/*
* Copyright 2005,2009-2011,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
namespace gr {
/*!
* \brief thread-safe message queue
*/
class msg_queue : public gr::msg_handler
{
public:
typedef boost::shared_ptr<msg_queue> sptr;
static sptr make(unsigned int limit=0);
msg_queue(unsigned int limit);
~msg_queue();
//! Generic msg_handler method: insert the message.
//void handle(gr::message::sptr msg) { insert_tail (msg); }
/*!
* \brief Insert message at tail of queue.
* \param msg message
*
* Block if queue if full.
*/
//void insert_tail(gr::message::sptr msg);
/*!
* \brief Delete message from head of queue and return it.
* Block if no message is available.
*/
//gr::message::sptr delete_head();
/*!
* \brief If there's a message in the q, delete it and return it.
* If no message is available, return 0.
*/
gr::message::sptr delete_head_nowait();
//! is the queue empty?
bool empty_p() const;
//! is the queue full?
bool full_p() const;
//! return number of messages in queue
unsigned int count() const;
//! Delete all messages from the queue
void flush();
};
}
/*
* The following kludge-o-rama releases the Python global interpreter
* lock around these potentially blocking calls. We don't want
* libgnuradio-runtime to be dependent on Python, thus we create these
* functions that serve as replacements for the normal C++ delete_head
* and insert_tail methods. The %pythoncode smashes these new C++
* functions into the gr.msg_queue wrapper class, so that everything
* appears normal. (An evil laugh is heard in the distance...)
*/
#ifdef SWIGPYTHON
%inline %{
gr::message::sptr py_msg_queue__delete_head(gr::msg_queue::sptr q) {
gr::message::sptr msg;
GR_PYTHON_BLOCKING_CODE(
msg = q->delete_head();
)
return msg;
}
void py_msg_queue__insert_tail(gr::msg_queue::sptr q, gr::message::sptr msg) {
GR_PYTHON_BLOCKING_CODE(
q->insert_tail(msg);
)
}
%}
// smash in new python delete_head and insert_tail methods...
%template(msg_queue_sptr) boost::shared_ptr<gr::msg_queue>;
%pythoncode %{
msg_queue_sptr.delete_head = py_msg_queue__delete_head
msg_queue_sptr.insert_tail = py_msg_queue__insert_tail
msg_queue_sptr.handle = py_msg_queue__insert_tail
msg_queue = msg_queue.make
%}
#endif // SWIGPYTHON
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