| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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; |
| } |