114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
/*
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SessManagerImpl - global session access and lifecycle
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Copyright (C) Lumiera.org
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2008, 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 the
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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 sessmanagerimpl.cpp
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** Implemention of the Session management functions.
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** The Class SessManager is declared alongside with mobject::Session,
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** because it serves as smart ptr-to-Impl at the same time. Effectively,
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** the session manager owns the current session object and only grants
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** access via his overloaded operator->() . Because there is no operator*(),
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** no one can get at the address of the current session object. (correct?)
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**
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** @see sessionimpl.hpp
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** @see mobject::Session#current
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** @see mobject::session::SessionManager_test
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**
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*/
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#include "proc/mobject/session.hpp"
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#include "proc/mobject/session/sessionimpl.hpp"
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using boost::scoped_ptr;
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namespace mobject
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{
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namespace session
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{
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/** Besides creating the single system-wide Session manger instance,
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* creates an empty default Session as well.
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* @note any exceptions arising in the course of this will halt
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* the system (and this behaviour is desirable).
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*/
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SessManagerImpl::SessManagerImpl () throw()
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: pImpl_ (new SessionImpl)
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{
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}
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/** @note no transactional behaviour.
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* may succeed partial.
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*/
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void
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SessManagerImpl::clear ()
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{
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pImpl_->clear();
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}
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/** @note this operation is atomic and either succeeds or
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* failes completely, in which case the current session
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* remains unaltered.
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* @todo for this to work, we need to change the implementation of
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* AssetManager so support this kind of transactional switch!
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*/
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void
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SessManagerImpl::reset ()
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{
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scoped_ptr<SessionImpl> tmp (new SessionImpl);
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TODO ("reset the assets registered with AssetManager");
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// Ichthyo-intern: ticket #95
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pImpl_.swap (tmp);
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}
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void
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SessManagerImpl::load ()
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{
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UNIMPLEMENTED ("load serialized session");
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}
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/** \par Implementation details
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* We intend to have several switchable object serialisers.
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* One of these serializers should genarate a comprehensible
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* text based representation suitable for checking into
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* SCM systems.
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* Sessions can be saved into one single file or be splitted
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* to several files (master file and edl files)
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*/
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void
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SessManagerImpl::save ()
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{
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UNIMPLEMENTED ("save session (serialized)");
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}
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} // namespace mobject::session
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} // namespace mobject
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