/*
- Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-/** @file src/lib/update.h
+
+/** @file src/lib/update_checker.h
* @brief UpdateChecker class.
*/
+
#include "signaller.h"
#include <curl/curl.h>
#include <boost/signals2.hpp>
#include <boost/thread/condition.hpp>
#include <boost/thread.hpp>
+
struct update_checker_test;
+
/** Class to check for the existance of an update for DCP-o-matic on a remote server */
-class UpdateChecker : public Signaller, public boost::noncopyable
+class UpdateChecker : public Signaller
{
public:
~UpdateChecker ();
+ UpdateChecker (UpdateChecker const &);
+ UpdateChecker& operator= (UpdateChecker const &);
+
void run ();
- enum State {
+ enum class State {
YES, ///< there is an update
FAILED, ///< the check failed, so we don't know
NO, ///< there is no update
return _stable;
}
- /** @return new test version, if there is one and Config is set to look for it */
+ /** @return new test version, if there is one */
boost::optional<std::string> test () {
boost::mutex::scoped_lock lm (_data_mutex);
return _test;
}
- /** @return true if the last signal emission was the first */
- bool last_emit_was_first () const {
- boost::mutex::scoped_lock lm (_data_mutex);
- return _emits == 1;
- }
-
size_t write_callback (void *, size_t, size_t);
boost::signals2::signal<void (void)> StateChanged;
void set_state (State);
void thread ();
- char* _buffer;
- int _offset;
- CURL* _curl;
+ std::vector<char> _buffer;
+ int _offset = 0;
+ CURL* _curl = nullptr;
/** mutex to protect _state, _stable, _test and _emits */
mutable boost::mutex _data_mutex;
State _state;
boost::optional<std::string> _stable;
boost::optional<std::string> _test;
- int _emits;
- boost::thread* _thread;
+ boost::thread _thread;
boost::mutex _process_mutex;
boost::condition _condition;
- int _to_do;
- bool _terminate;
+ int _to_do = 0;
+ bool _terminate = false;
};