/usr/include/tnt/backgroundworker.h is in libtntnet-dev 2.2.1-3+b1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 | /*
* Copyright (C) 2011 Tommi Maekitalo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TNT_BACKGROUNDWORKER_H
#define TNT_BACKGROUNDWORKER_H
#include <cxxtools/refcounted.h>
#include <cxxtools/smartptr.h>
#include <cxxtools/threadpool.h>
#include <cxxtools/condition.h>
#include <cxxtools/mutex.h>
#include <cxxtools/timespan.h>
#include <cxxtools/clock.h>
#include <list>
namespace tnt
{
class BackgroundTask : public cxxtools::AtomicRefCounted
{
friend class BackgroundWorker;
public:
typedef cxxtools::SmartPtr<BackgroundTask> Pointer;
BackgroundTask(const cxxtools::Timespan& livetime = cxxtools::Timespan(0, 0))
: _progress(0),
_id(_nextId++),
_livetime(livetime),
_jobReady(0)
{ }
virtual ~BackgroundTask()
{ }
unsigned id() const
{ return _id; }
unsigned progress() const;
bool ready() const
{ return progress() >= 100; }
const cxxtools::DateTime& timeoutTime() const
{ return _timeoutTime; }
const cxxtools::Timespan& livetime() const
{ return _livetime; }
void livetime(const cxxtools::Timespan& livetime);
void updateProgress(unsigned p);
virtual void execute() = 0;
private:
void doTask();
unsigned _progress;
unsigned _id;
static unsigned _nextId;
cxxtools::DateTime _timeoutTime;
cxxtools::Timespan _livetime;
mutable cxxtools::Mutex _mutex;
cxxtools::Condition* _jobReady;
};
class BackgroundWorker
{
BackgroundWorker();
~BackgroundWorker();
public:
static BackgroundWorker& it();
unsigned runTask(BackgroundTask::Pointer task);
BackgroundTask::Pointer getTask(unsigned id) const;
void removeTask(unsigned id);
private:
mutable cxxtools::Mutex _mutex;
cxxtools::Condition _jobReady;
cxxtools::ThreadPool _threadPool;
bool _running;
void timeoutCheckerFunc();
typedef std::list<BackgroundTask::Pointer> Tasks;
Tasks tasks;
};
}
#endif // TNT_BACKGROUNDWORKER_H
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