396 lines
9 KiB
C++
396 lines
9 KiB
C++
/*************************************************************************
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*
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* $RCSfile: memlckb.cxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 15:18:32 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#define _STORE_MEMLCKB_CXX_ "$Revision: 1.1.1.1 $"
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#ifndef _SAL_TYPES_H_
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#include <sal/types.h>
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#endif
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#ifndef _RTL_ALLOC_H_
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#include <rtl/alloc.h>
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#endif
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#ifndef _RTL_MEMORY_H_
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#include <rtl/memory.h>
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#endif
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#ifndef _VOS_MUTEX_HXX_
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#include <vos/mutex.hxx>
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#endif
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#ifndef _STORE_MACROS_HXX_
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#include <store/macros.hxx>
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#endif
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#ifndef _STORE_OBJECT_HXX_
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#include <store/object.hxx>
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#endif
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#ifndef _STORE_LOCKBYTE_HXX_
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#include <store/lockbyte.hxx>
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#endif
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#ifndef _STORE_MEMLCKB_HXX_
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#include <store/memlckb.hxx>
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#endif
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#ifndef _STORE_TYPES_H_
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#include <store/types.h>
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#endif
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#ifdef _USE_NAMESPACE
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using namespace store;
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#endif
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/*========================================================================
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*
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* OMemoryLockBytes internals.
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*
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*======================================================================*/
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#ifdef DEBUG
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#ifdef inline
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#undef inline
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#endif
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#define inline
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#endif /* DEBUG */
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/*========================================================================
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*
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* OMemoryLockBytes_Impl interface.
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*
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*======================================================================*/
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#ifdef _USE_NAMESPACE
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namespace store {
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#endif
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class OMemoryLockBytes_Impl
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{
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sal_uInt8 *m_pBuffer;
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sal_uInt32 m_nSize;
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public:
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OMemoryLockBytes_Impl (void);
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~OMemoryLockBytes_Impl (void);
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storeError resize (sal_uInt32 nSize);
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storeError readAt (
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sal_uInt32 nOffset,
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void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone);
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storeError writeAt (
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sal_uInt32 nOffset,
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const void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone);
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storeError stat (sal_uInt32 &rnSize);
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};
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#ifdef _USE_NAMESPACE
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}
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#endif
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/*========================================================================
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*
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* OMemoryLockBytes_Impl (inline) implementation.
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*
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*======================================================================*/
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/*
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* OMemoryLockBytes_Impl.
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*/
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inline OMemoryLockBytes_Impl::OMemoryLockBytes_Impl (void)
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: m_pBuffer (0), m_nSize (0)
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{
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}
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/*
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* ~OMemoryLockBytes_Impl.
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*/
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inline OMemoryLockBytes_Impl::~OMemoryLockBytes_Impl (void)
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{
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rtl_freeMemory (m_pBuffer);
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}
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/*
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* resize.
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*/
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inline storeError OMemoryLockBytes_Impl::resize (sal_uInt32 nSize)
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{
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if (!(nSize == m_nSize))
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{
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m_pBuffer = (sal_uInt8*)(rtl_reallocateMemory (m_pBuffer, nSize));
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if (!m_pBuffer)
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{
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m_nSize = 0;
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if (nSize > 0)
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return store_E_OutOfMemory;
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else
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return store_E_None;
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}
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if (nSize > m_nSize)
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rtl_zeroMemory (m_pBuffer + m_nSize, nSize - m_nSize);
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m_nSize = nSize;
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}
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return store_E_None;
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}
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/*
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* readAt.
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*/
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inline storeError OMemoryLockBytes_Impl::readAt (
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sal_uInt32 nOffset,
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void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone)
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{
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if (m_pBuffer)
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{
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if (!(nOffset < m_nSize))
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return store_E_None;
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nBytes = VOS_MIN(nOffset + nBytes, m_nSize) - nOffset;
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if (!(nBytes > 0))
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return store_E_None;
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rtl_copyMemory (pBuffer, m_pBuffer + nOffset, nBytes);
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rnDone = nBytes;
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}
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return store_E_None;
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}
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/*
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* writeAt.
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*/
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inline storeError OMemoryLockBytes_Impl::writeAt (
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sal_uInt32 nOffset,
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const void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone)
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{
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if (m_nSize < (nOffset + nBytes))
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{
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storeError eErrCode = resize (nOffset + nBytes);
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if (eErrCode != store_E_None)
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return eErrCode;
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}
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rtl_copyMemory (m_pBuffer + nOffset, pBuffer, nBytes);
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rnDone = nBytes;
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return store_E_None;
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}
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/*
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* stat.
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*/
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inline storeError OMemoryLockBytes_Impl::stat (sal_uInt32 &rnSize)
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{
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rnSize = m_nSize;
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return store_E_None;
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}
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/*========================================================================
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*
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* OMemoryLockBytes implementation.
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*
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*======================================================================*/
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VOS_IMPLEMENT_CLASSINFO(
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VOS_CLASSNAME (OMemoryLockBytes, store),
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VOS_NAMESPACE (OMemoryLockBytes, store),
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VOS_NAMESPACE (OStoreObject, store),
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0);
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/*
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* OMemoryLockBytes.
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*/
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OMemoryLockBytes::OMemoryLockBytes (void)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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m_pImpl = new OMemoryLockBytes_Impl();
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}
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/*
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* ~OMemoryLockBytes.
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*/
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OMemoryLockBytes::~OMemoryLockBytes (void)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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delete m_pImpl;
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}
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/*
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* acquire.
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*/
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NAMESPACE_VOS(IReference)::RefCount
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SAL_CALL OMemoryLockBytes::acquire (void)
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{
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return OStoreObject::acquire();
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}
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/*
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* release.
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*/
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NAMESPACE_VOS(IReference)::RefCount
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SAL_CALL OMemoryLockBytes::release (void)
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{
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return OStoreObject::release();
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}
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/*
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* referenced.
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*/
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NAMESPACE_VOS(IReference)::RefCount
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SAL_CALL OMemoryLockBytes::referenced (void) const
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{
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return OStoreObject::referenced();
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}
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/*
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* readAt.
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*/
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storeError OMemoryLockBytes::readAt (
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sal_uInt32 nOffset,
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void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone)
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{
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// Initialize [out] param.
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rnDone = 0;
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return m_pImpl->readAt (nOffset, pBuffer, nBytes, rnDone);
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}
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/*
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* writeAt.
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*/
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storeError OMemoryLockBytes::writeAt (
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sal_uInt32 nOffset,
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const void *pBuffer,
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sal_uInt32 nBytes,
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sal_uInt32 &rnDone)
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{
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// Initialize [out] param.
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rnDone = 0;
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return m_pImpl->writeAt (nOffset, pBuffer, nBytes, rnDone);
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}
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/*
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* flush.
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*/
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storeError OMemoryLockBytes::flush (void)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return store_E_None;
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}
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/*
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* setSize.
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*/
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storeError OMemoryLockBytes::setSize (sal_uInt32 nSize)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return m_pImpl->resize (nSize);
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}
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/*
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* stat.
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*/
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storeError OMemoryLockBytes::stat (sal_uInt32 &rnSize)
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{
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// Initialize [out] param.
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rnSize = 0;
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return m_pImpl->stat (rnSize);
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}
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/*
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* lockRange.
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*/
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storeError OMemoryLockBytes::lockRange (
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sal_uInt32 nOffset, sal_uInt32 nBytes)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return store_E_None; // E_Unsupported
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}
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/*
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* unlockRange.
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*/
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storeError OMemoryLockBytes::unlockRange (
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sal_uInt32 nOffset, sal_uInt32 nBytes)
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{
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// Acquire exclusive access.
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NAMESPACE_VOS(OGuard) aGuard (m_aMutex);
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return store_E_None; // E_Unsupported
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}
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