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/*************************************************************************
*
* $RCSfile: cacheline.hxx,v $
*
* $Revision: 1.3 $
*
* last change: $Author: ssmith $ $Date: 2002-12-13 10:30:44 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef CONFIGMGR_CACHELINE_HXX
#define CONFIGMGR_CACHELINE_HXX
#ifndef CONFIGMGR_TREEADDRESS_HXX
#include "treeaddress.hxx"
#endif
#ifndef CONFIGMGR_SEGMENT_HXX
#include "segment.hxx"
#endif
#ifndef CONFIGMGR_CONFIGPATH_HXX_
#include "configpath.hxx"
#endif
#ifndef CONFIGMGR_BACKEND_REQUESTTYPES_HXX_
#include "requesttypes.hxx"
#endif
#ifndef _OSL_INTERLOCK_H_
#include <osl/interlck.h>
#endif
#ifndef _SALHELPER_SIMPLEREFERENCEOBJECT_HXX_
#include <salhelper/simplereferenceobject.hxx>
#endif
#ifndef _RTL_REF_HXX_
#include <rtl/ref.hxx>
#endif
namespace configmgr
{
////////////////////////////////////////////////////////////////////////////////
using ::rtl::OUString;
namespace data { class NodeAddress; class TreeAddress; class NodeAccess; }
////////////////////////////////////////////////////////////////////////////////
/** This object represents a cache line for a single configuration tree
*/
class CacheLine : public salhelper::SimpleReferenceObject, NotCopyable
{
public:
typedef oslInterlockedCount RefCount;
typedef configuration::Name Name;
typedef configuration::AbsolutePath Path;
// create a new CacheLine for the given component name
static rtl::Reference<CacheLine>
createNew( Name const & _aModuleName, memory::HeapManager & _rHeapImpl );
// create a new CacheLine attached to the given memory location
static rtl::Reference<CacheLine>
createAttached( Name const & _aModuleName, memory::HeapManager & _rHeapImpl,
memory::SegmentAddress const & _aLocation );
memory::Segment * getDataSegment();
memory::SegmentAddress getDataSegmentAddress() const;
bool isEmpty() const { return m_base.isNull(); }
bool hasDefaults(memory::Accessor const & _aAccessor) const;
data::TreeAddress getModuleRootAddress( ) const { return m_base; }
data::TreeAddress getPartialTree(memory::Accessor const & _aAccessor, Path const & _aTemplatePath ) const;
data::NodeAddress getNode(memory::Accessor const & _aAccessor, Path const & _aPath) const;
data::TreeAddress setComponentData( memory::UpdateAccessor& _aAccessToken,
backend::ComponentData const & _aComponentInstance,
bool _bWithDefaults
) CFG_UNO_THROW_RTE();
data::TreeAddress insertDefaults( memory::UpdateAccessor& _aAccessToken,
backend::NodeInstance const & _aDefaultInstance
) CFG_UNO_THROW_RTE();
// get the module name for this component
Name getModuleName() const;
/// add a client for this module's data
RefCount clientReferences() const { return m_nDataRefs; }
/// add a client for this modules data
RefCount clientAcquire() { return osl_incrementInterlockedCount(&m_nDataRefs); }
/// subtract a client for this modules data
RefCount clientRelease() { return osl_decrementInterlockedCount(&m_nDataRefs); }
protected:
// create a new CacheLine attached to the given memory location
explicit
CacheLine( Name const & _aModuleName, memory::HeapManager & _rHeapImpl,
memory::SegmentAddress const & _aLocation );
// create a new empty CacheLine for the given component name
explicit
CacheLine( Name const & _aModuleName, memory::HeapManager & _rHeapImpl );
data::NodeAccess internalGetNode(memory::Accessor const & _anAccessor, Path const & _rPath) const;
data::TreeAddress base() const { return m_base; }
void setBase(data::TreeAddress _base);
private:
memory::Segment m_storage;
data::TreeAddress m_base;
Name m_name;
oslInterlockedCount m_nDataRefs; /// the number of clients on this modules data
};
typedef rtl::Reference<CacheLine> CacheLineRef;
////////////////////////////////////////////////////////////////////////////////
/** This object represents a cache line and associated data for a single configuration tree
*/
class ExtendedCacheLine : public CacheLine
{
public:
// create a new CacheLine for the given component name
static rtl::Reference<ExtendedCacheLine>
createNew( Name const & _aModuleName, memory::HeapManager & _rHeapImpl );
// create a new CacheLine attached to the given memory location
static rtl::Reference<ExtendedCacheLine>
createAttached( Name const & _aModuleName, memory::HeapManager & _rHeapImpl,
memory::SegmentAddress const & _aLocation );
// management of pending changes
bool hasPending() const {return m_pPending.get() != NULL;}
void addPending(backend::ConstUpdateInstance const & _anUpdate) CFG_UNO_THROW_RTE();
std::auto_ptr<SubtreeChange> releasePending() {return m_pPending;}
private:
// create a new empty CacheLine for the given component name
explicit
ExtendedCacheLine( Name const & _aModuleName, memory::HeapManager & _rHeapImpl );
// create a new CacheLine attached to the given memory location
explicit
ExtendedCacheLine( Name const & _aModuleName, memory::HeapManager & _rHeapImpl,
memory::SegmentAddress const & _aLocation );
private:
std::auto_ptr<SubtreeChange> m_pPending;
};
typedef rtl::Reference<ExtendedCacheLine> ExtendedCacheLineRef;
////////////////////////////////////////////////////////////////////////////////
inline
memory::Segment * CacheLine::getDataSegment()
{ return &m_storage; }
////////////////////////////////////////////////////////////////////////////////
} // namespace configmgr
#endif
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