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-/*************************************************************************
- * Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
- * *
- * This file is part of The Dimension Library. *
- * *
- * The Dimension 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 3 of the *
- * License, or (at your option) any later version. *
- * *
- * The Dimension 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 program. If not, see *
- * <http://www.gnu.org/licenses/>. *
- *************************************************************************/
-
-// dmnsn_progress* wrapper.
-
-#ifndef DIMENSIONXX_PROGRESS_HPP
-#define DIMENSIONXX_PROGRESS_HPP
-
-#include <tr1/memory> // For tr1::shared_ptr
-#include <list>
-
-namespace Dimension
-{
- // Base class for persisting objects
- class Persist_Base
- {
- public:
- virtual ~Persist_Base() = 0;
-
- protected:
- Persist_Base() { }
-
- private:
- // Copying prohibited
- Persist_Base(const Persist_Base&);
- Persist_Base& operator=(const Persist_Base&);
- };
-
- // Class for persisting objects
- template <typename T>
- class Persist : public Persist_Base
- {
- public:
- Persist(T* t) : m_t(t) { }
- virtual ~Persist() { delete m_t; }
-
- T* persisted() const { return m_t; }
-
- private:
- T* m_t;
- };
-
- // Class for persisting many objects
- class Persister
- {
- public:
- // Persister();
- // Persister(const Persister& persister);
- // ~Persister();
-
- // Persister& operator=(const Persister& persister);
-
- template <typename T>
- void persist(T* t);
-
- // Access the first persisted element
- template <typename T>
- Persist<T>& first();
-
- private:
- // Copy-assignment prohibited
- Persister& operator=(const Persister&);
-
- std::list<std::tr1::shared_ptr<Persist_Base> > m_persists;
- };
-
- // dmnsn_progress* wrapper class to represent an asynchronous worker thread
- class Progress
- {
- public:
- explicit Progress(dmnsn_progress* progress);
- Progress(dmnsn_progress* progress, const Persister& persister);
- // Progress(const Progress& progress);
-
- // Finishes the job without throwing
- ~Progress();
-
- double progress() const;
- void wait(double progress) const;
-
- void new_element(unsigned int total);
- void increment();
- void done();
-
- // Wait for job to finish, throwing if the job failed
- void finish();
-
- // Access the set of persisted objects
- Persister& persister();
-
- // Access the wrapped C object.
- dmnsn_progress* dmnsn();
- const dmnsn_progress* dmnsn() const;
-
- private:
- // Copy assignment prohibited
- Progress& operator=(const Progress&);
-
- std::tr1::shared_ptr<dmnsn_progress*> m_progress;
- Persister m_persister;
- };
-
- template <typename T>
- void
- Persister::persist(T* t)
- {
- m_persists.push_back(std::tr1::shared_ptr<Persist_Base>(new Persist<T>(t)));
- }
-
- template <typename T>
- Persist<T>&
- Persister::first()
- {
- return dynamic_cast<Persist<T>&>(*m_persists.front());
- }
-}
-
-#endif /* DIMENSIONXX_PROGRESS_HPP */