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