GNU Radio Manual and C++ API Reference
3.7.14.0
The Free & Open Software Radio Ecosystem
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log.h
Go to the documentation of this file.
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/*
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* Copyright 2019 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GR_RUNTIME_RUNTIME_LOG_LOG_H
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#define INCLUDED_GR_RUNTIME_RUNTIME_LOG_LOG_H
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#include <
gnuradio/api.h
>
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#include <
gnuradio/log/backend.h
>
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#include <gnuradio/log/entry.h>
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#include <zmq.hpp>
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#include <atomic>
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/* #include <memory> */
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/* #include <mutex> */
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#include <set>
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#include <thread>
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namespace
gr
{
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namespace
log {
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/*! logger singleton class
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*/
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class
GR_RUNTIME_API
logger
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{
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friend
logger
&
instance
();
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private
:
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zmq::context_t ctx;
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zmq::socket_t rx_socket;
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/*! The private constructor
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*/
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logger
();
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/*! The private destructor
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*/
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~logger
() noexcept;
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/*! enqueue a message.
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* This is meant to be called asynchronously, as it's a blocking call.
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*/
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void
enqueue(entry&& what) noexcept;
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/*! worker thread
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*/
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void
work();
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private:
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std
::set<
std
::shared_ptr<
backend
> > backends;
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/*! internal message queue */
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std
::atomic<
bool
> running;
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std
::thread worker;
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public:
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/*! Log a log entry
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* \param what the entry to log.
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*/
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void
operator()(entry&& what) noexcept;
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/*! we're deleting the copy constructor on a singleton object
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*/
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logger
(
logger
&) = delete;
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/*! we're deleting the assignment operator on a singleton object
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*/
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void
operator=(
logger
const&) = delete;
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/*! register a logger
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* \param log_backend the backend to register
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*/
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void
attach(
std
::shared_ptr<
backend
> log_backend);
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/*! unregister a logger
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* \param log_backend the backend to unregister
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*/
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void
detach(
std
::shared_ptr<
backend
> log_backend);
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};
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/*! returns the global logger instance.
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Initialization on first call.
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*/
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GR_RUNTIME_API
logger
& instance();
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}
// namespace log
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}
// namespace gr
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#endif
/* INCLUDED_GR_RUNTIME_RUNTIME_LOG_LOG_H */
backend.h
gr::log::backend
Definition
backend.h:31
gr::log::logger
Definition
log.h:40
gr::log::logger::instance
friend logger & instance()
api.h
GR_RUNTIME_API
#define GR_RUNTIME_API
Definition
gnuradio-runtime/include/gnuradio/api.h:30
gr
Include this header to use the message passing features.
Definition
basic_block.h:45
std
STL namespace.
gnuradio-3.7.14.0
gnuradio-runtime
include
gnuradio
log
log.h
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