Ichthyostega
0ea37402d2
lib::Depend<TY> works as drop-in replacement for lib::Singleton<TY> This changeset removes the convoluted special cases like SingletonSub and MockInjector.
98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
/*
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REAL-CLOCK.hpp - convenience front-end to access the system clock
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Copyright (C) Lumiera.org
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2012, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file real-clock.hpp
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** Front-end for simplified access to the current wall clock time.
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** The implementation relies on Lumiera backend functions to access the
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** system clock with a sufficient level of precision. The result is
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** delivered in lumiera's internal \link lib::time::Time time format \endlink
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**
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** @todo WIP-WIP-WIP 3/2012
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** @todo this might be a good candidate also to provide some kind of
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** translation service, i.e. a grid to anchor a logical time value
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** with actual running wall clock time.
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** @todo not clear if this becomes some kind of central service (singleton)
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** or just a bunch of library routines
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**
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** @see lib/time/timevalue.hpp
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*/
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#ifndef BACKEND_REAL_CLOCK_H
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#define BACKEND_REAL_CLOCK_H
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#include "lib/error.hpp"
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//#include "lib/handle.hpp"
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#include "lib/time/timevalue.hpp"
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//#include "lib/depend.hpp"
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//#include "proc/engine/buffer-provider.hpp"
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//#include "lib/iter-source.hpp"
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//#include "lib/sync.hpp"
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//#include <boost/noncopyable.hpp>
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//#include <string>
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//#include <vector>
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//#include <tr1/memory>
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//#include <boost/scoped_ptr.hpp>
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//namespace lib {
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//namespace time{
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// class Quantiser;
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// typedef std::tr1::shared_ptr<const Quantiser> PQuant;
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//}}
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namespace backend {
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using lib::time::Time;
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using lib::time::TimeValue;
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//using std::string;
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//using std::vector;
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//using std::tr1::shared_ptr;
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//using boost::scoped_ptr;
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/**
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* Convenience frontend to access the current wall clock time
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*/
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class RealClock
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{
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public:
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static Time
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now()
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{
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return Time(_readSystemTime());
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}
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private:
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static TimeValue _readSystemTime();
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};
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} // namespace backend
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#endif
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