diff options
author | Tor Lillqvist <tml@iki.fi> | 2013-02-22 18:49:53 +0200 |
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committer | Tor Lillqvist <tml@iki.fi> | 2013-02-22 18:50:41 +0200 |
commit | 393609f3f702bf5cf34e1495f32e78b75e3d5f17 (patch) | |
tree | d1e8637b28d34fabf842e39d4154eb63598a9080 /sal/rtl/byteseq.cxx | |
parent | 0208ead70a9412ccd554fcef3e9308f8ca17037b (diff) |
Bin pointless single-child directory level
Change-Id: I03de46fb6c095bb176fd25fc5f803be6d2d89bcf
Diffstat (limited to 'sal/rtl/byteseq.cxx')
-rw-r--r-- | sal/rtl/byteseq.cxx | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/sal/rtl/byteseq.cxx b/sal/rtl/byteseq.cxx new file mode 100644 index 000000000000..dfc0d96158be --- /dev/null +++ b/sal/rtl/byteseq.cxx @@ -0,0 +1,258 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 . + */ + +#include <string.h> + +#include <osl/diagnose.h> +#include <osl/interlck.h> + +#include <rtl/byteseq.h> +#include <rtl/alloc.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_THROW_EXTERN_C() +{ + 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 ) + memcpy( pNew->elements, pSequence->elements, nElements ); + + if (! osl_atomic_decrement( &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_THROW_EXTERN_C() +{ + 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) + { + memcpy( pNew->elements, pSequence->elements, nElements ); + memset( pNew->elements + nElements, 0, nSize - nElements ); + } + else + { + memcpy( pNew->elements, pSequence->elements, nSize ); + } + } + + if (! osl_atomic_decrement( &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 ) + SAL_THROW_EXTERN_C() +{ + OSL_ASSERT( pSequence ); + osl_atomic_increment( &(pSequence->nRefCount) ); +} + +//================================================================================================== +void SAL_CALL rtl_byte_sequence_release( sal_Sequence *pSequence ) + SAL_THROW_EXTERN_C() +{ + if ( pSequence != 0 ) + { + if (! osl_atomic_decrement( &(pSequence->nRefCount )) ) + { + rtl_freeMemory( pSequence ); + } + } +} + +//================================================================================================== +void SAL_CALL rtl_byte_sequence_construct( sal_Sequence **ppSequence , sal_Int32 nLength ) + SAL_THROW_EXTERN_C() +{ + 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 ) + SAL_THROW_EXTERN_C() +{ + 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 ) + SAL_THROW_EXTERN_C() +{ + rtl_byte_sequence_constructNoDefault( ppSequence , nLength ); + if ( *ppSequence != 0 ) + memcpy( (*ppSequence)->elements, pData, nLength ); +} + +//================================================================================================== +void SAL_CALL rtl_byte_sequence_assign( sal_Sequence **ppSequence , sal_Sequence *pSequence ) + SAL_THROW_EXTERN_C() +{ + 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 ) + SAL_THROW_EXTERN_C() +{ + OSL_ASSERT( pSequence1 ); + OSL_ASSERT( pSequence2 ); + if (pSequence1 == pSequence2) + { + return sal_True; + } + if (pSequence1->nElements != pSequence2->nElements) + { + return sal_False; + } + return (sal_Bool) + (memcmp( + pSequence1->elements, pSequence2->elements, pSequence1->nElements ) + == 0); +} + + +//================================================================================================== +const sal_Int8 *SAL_CALL rtl_byte_sequence_getConstArray( sal_Sequence *pSequence ) + SAL_THROW_EXTERN_C() +{ + return ((const sal_Int8*)(pSequence->elements)); +} + +//================================================================================================== +sal_Int32 SAL_CALL rtl_byte_sequence_getLength( sal_Sequence *pSequence ) + SAL_THROW_EXTERN_C() +{ + return pSequence->nElements; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |