254 lines
7.6 KiB
C
254 lines
7.6 KiB
C
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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 Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <osl/diagnose.h>
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#include <osl/interlck.h>
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#include <rtl/byteseq.h>
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#include <rtl/alloc.h>
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#include <rtl/memory.h>
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/* static data to be referenced by all empty strings
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* the refCount is predefined to 1 and must never become 0 !
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*/
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static sal_Sequence aEmpty_rtl_ByteSeq =
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{
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1, /* sal_Int32 refCount; */
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0, /* sal_Int32 length; */
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{ 0 } /* sal_Unicode buffer[1]; */
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};
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_reference2One(
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sal_Sequence ** ppSequence )
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{
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sal_Sequence * pSequence, * pNew;
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sal_Int32 nElements;
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OSL_ENSURE( ppSequence, "### null ptr!" );
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pSequence = *ppSequence;
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if (pSequence->nRefCount > 1)
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{
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nElements = pSequence->nElements;
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if (nElements)
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{
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pNew = (sal_Sequence *)rtl_allocateMemory( SAL_SEQUENCE_HEADER_SIZE + nElements );
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if ( pNew != 0 )
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rtl_copyMemory( pNew->elements, pSequence->elements, nElements );
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if (! osl_decrementInterlockedCount( &pSequence->nRefCount ))
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rtl_freeMemory( pSequence );
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}
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else
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{
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pNew = (sal_Sequence *)rtl_allocateMemory( SAL_SEQUENCE_HEADER_SIZE );
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}
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if ( pNew != 0 )
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{
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pNew->nRefCount = 1;
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pNew->nElements = nElements;
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}
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*ppSequence = pNew;
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}
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_realloc(
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sal_Sequence ** ppSequence, sal_Int32 nSize )
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{
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sal_Sequence * pSequence, * pNew;
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sal_Int32 nElements;
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OSL_ENSURE( ppSequence, "### null ptr!" );
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pSequence = *ppSequence;
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nElements = pSequence->nElements;
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if (nElements == nSize)
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return;
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if (pSequence->nRefCount > 1) // split
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{
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pNew = (sal_Sequence *)rtl_allocateMemory( SAL_SEQUENCE_HEADER_SIZE + nSize );
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if ( pNew != 0 )
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{
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if (nSize > nElements)
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{
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rtl_copyMemory( pNew->elements, pSequence->elements, nElements );
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rtl_zeroMemory( pNew->elements + nElements, nSize - nElements );
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}
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else
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{
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rtl_copyMemory( pNew->elements, pSequence->elements, nSize );
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}
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}
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if (! osl_decrementInterlockedCount( &pSequence->nRefCount ))
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rtl_freeMemory( pSequence );
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pSequence = pNew;
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}
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else
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{
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pSequence = (sal_Sequence *)rtl_reallocateMemory(
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pSequence, SAL_SEQUENCE_HEADER_SIZE + nSize );
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}
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if ( pSequence != 0 )
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{
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pSequence->nRefCount = 1;
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pSequence->nElements = nSize;
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}
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*ppSequence = pSequence;
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_acquire( sal_Sequence *pSequence )
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{
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OSL_ASSERT( pSequence );
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osl_incrementInterlockedCount( &(pSequence->nRefCount) );
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_release( sal_Sequence *pSequence )
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{
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if ( pSequence != 0 )
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{
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if (! osl_decrementInterlockedCount( &(pSequence->nRefCount )) )
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{
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rtl_freeMemory( pSequence );
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}
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}
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_construct( sal_Sequence **ppSequence , sal_Int32 nLength )
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{
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OSL_ASSERT( ppSequence );
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if( *ppSequence )
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{
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rtl_byte_sequence_release( *ppSequence );
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*ppSequence = 0;
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}
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if( nLength )
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{
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*ppSequence = (sal_Sequence *) rtl_allocateZeroMemory( SAL_SEQUENCE_HEADER_SIZE + nLength );
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if ( *ppSequence != 0 )
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{
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(*ppSequence)->nRefCount = 1;
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(*ppSequence)->nElements = nLength;
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}
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}
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else
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{
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*ppSequence = &aEmpty_rtl_ByteSeq;
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rtl_byte_sequence_acquire( *ppSequence );
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}
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_constructNoDefault( sal_Sequence **ppSequence , sal_Int32 nLength )
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{
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OSL_ASSERT( ppSequence );
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if( *ppSequence )
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{
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rtl_byte_sequence_release( *ppSequence );
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*ppSequence = 0;
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}
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*ppSequence = (sal_Sequence *) rtl_allocateMemory( SAL_SEQUENCE_HEADER_SIZE + nLength );
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if ( *ppSequence != 0 )
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{
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(*ppSequence)->nRefCount = 1;
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(*ppSequence)->nElements = nLength;
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}
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_constructFromArray(
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sal_Sequence **ppSequence, const sal_Int8 *pData , sal_Int32 nLength )
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{
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rtl_byte_sequence_constructNoDefault( ppSequence , nLength );
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if ( *ppSequence != 0 )
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rtl_copyMemory( (*ppSequence)->elements, pData, nLength );
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}
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//==================================================================================================
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void SAL_CALL rtl_byte_sequence_assign( sal_Sequence **ppSequence , sal_Sequence *pSequence )
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{
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if ( *ppSequence != pSequence)
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{
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if( *ppSequence )
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{
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rtl_byte_sequence_release( *ppSequence );
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}
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*ppSequence = pSequence;
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rtl_byte_sequence_acquire( *ppSequence );
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}
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// else
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// nothing to do
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}
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//==================================================================================================
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sal_Bool SAL_CALL rtl_byte_sequence_equals( sal_Sequence *pSequence1 , sal_Sequence *pSequence2 )
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{
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OSL_ASSERT( pSequence1 );
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OSL_ASSERT( pSequence2 );
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if (pSequence1 == pSequence2)
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{
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return sal_True;
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}
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if (pSequence1->nElements != pSequence2->nElements)
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{
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return sal_False;
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}
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return (sal_Bool)
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(rtl_compareMemory(
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pSequence1->elements, pSequence2->elements, pSequence1->nElements )
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== 0);
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}
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//==================================================================================================
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const sal_Int8 *SAL_CALL rtl_byte_sequence_getConstArray( sal_Sequence *pSequence )
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{
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return ((const sal_Int8*)(pSequence->elements));
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}
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//==================================================================================================
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sal_Int32 SAL_CALL rtl_byte_sequence_getLength( sal_Sequence *pSequence )
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{
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return pSequence->nElements;
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}
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