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Diffstat (limited to 'jsoncpp-src-0.5.0/src/lib_json/json_internalarray.inl')
-rw-r--r-- | jsoncpp-src-0.5.0/src/lib_json/json_internalarray.inl | 448 |
1 files changed, 0 insertions, 448 deletions
diff --git a/jsoncpp-src-0.5.0/src/lib_json/json_internalarray.inl b/jsoncpp-src-0.5.0/src/lib_json/json_internalarray.inl deleted file mode 100644 index 9b985d258..000000000 --- a/jsoncpp-src-0.5.0/src/lib_json/json_internalarray.inl +++ /dev/null @@ -1,448 +0,0 @@ -// included by json_value.cpp -// everything is within Json namespace - -// ////////////////////////////////////////////////////////////////// -// ////////////////////////////////////////////////////////////////// -// ////////////////////////////////////////////////////////////////// -// class ValueInternalArray -// ////////////////////////////////////////////////////////////////// -// ////////////////////////////////////////////////////////////////// -// ////////////////////////////////////////////////////////////////// - -ValueArrayAllocator::~ValueArrayAllocator() -{ -} - -// ////////////////////////////////////////////////////////////////// -// class DefaultValueArrayAllocator -// ////////////////////////////////////////////////////////////////// -#ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR -class DefaultValueArrayAllocator : public ValueArrayAllocator -{ -public: // overridden from ValueArrayAllocator - virtual ~DefaultValueArrayAllocator() - { - } - - virtual ValueInternalArray *newArray() - { - return new ValueInternalArray(); - } - - virtual ValueInternalArray *newArrayCopy( const ValueInternalArray &other ) - { - return new ValueInternalArray( other ); - } - - virtual void destructArray( ValueInternalArray *array ) - { - delete array; - } - - virtual void reallocateArrayPageIndex( Value **&indexes, - ValueInternalArray::PageIndex &indexCount, - ValueInternalArray::PageIndex minNewIndexCount ) - { - ValueInternalArray::PageIndex newIndexCount = (indexCount*3)/2 + 1; - if ( minNewIndexCount > newIndexCount ) - newIndexCount = minNewIndexCount; - void *newIndexes = realloc( indexes, sizeof(Value*) * newIndexCount ); - if ( !newIndexes ) - throw std::bad_alloc(); - indexCount = newIndexCount; - indexes = static_cast<Value **>( newIndexes ); - } - virtual void releaseArrayPageIndex( Value **indexes, - ValueInternalArray::PageIndex indexCount ) - { - if ( indexes ) - free( indexes ); - } - - virtual Value *allocateArrayPage() - { - return static_cast<Value *>( malloc( sizeof(Value) * ValueInternalArray::itemsPerPage ) ); - } - - virtual void releaseArrayPage( Value *value ) - { - if ( value ) - free( value ); - } -}; - -#else // #ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR -/// @todo make this thread-safe (lock when accessign batch allocator) -class DefaultValueArrayAllocator : public ValueArrayAllocator -{ -public: // overridden from ValueArrayAllocator - virtual ~DefaultValueArrayAllocator() - { - } - - virtual ValueInternalArray *newArray() - { - ValueInternalArray *array = arraysAllocator_.allocate(); - new (array) ValueInternalArray(); // placement new - return array; - } - - virtual ValueInternalArray *newArrayCopy( const ValueInternalArray &other ) - { - ValueInternalArray *array = arraysAllocator_.allocate(); - new (array) ValueInternalArray( other ); // placement new - return array; - } - - virtual void destructArray( ValueInternalArray *array ) - { - if ( array ) - { - array->~ValueInternalArray(); - arraysAllocator_.release( array ); - } - } - - virtual void reallocateArrayPageIndex( Value **&indexes, - ValueInternalArray::PageIndex &indexCount, - ValueInternalArray::PageIndex minNewIndexCount ) - { - ValueInternalArray::PageIndex newIndexCount = (indexCount*3)/2 + 1; - if ( minNewIndexCount > newIndexCount ) - newIndexCount = minNewIndexCount; - void *newIndexes = realloc( indexes, sizeof(Value*) * newIndexCount ); - if ( !newIndexes ) - throw std::bad_alloc(); - indexCount = newIndexCount; - indexes = static_cast<Value **>( newIndexes ); - } - virtual void releaseArrayPageIndex( Value **indexes, - ValueInternalArray::PageIndex indexCount ) - { - if ( indexes ) - free( indexes ); - } - - virtual Value *allocateArrayPage() - { - return static_cast<Value *>( pagesAllocator_.allocate() ); - } - - virtual void releaseArrayPage( Value *value ) - { - if ( value ) - pagesAllocator_.release( value ); - } -private: - BatchAllocator<ValueInternalArray,1> arraysAllocator_; - BatchAllocator<Value,ValueInternalArray::itemsPerPage> pagesAllocator_; -}; -#endif // #ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR - -static ValueArrayAllocator *&arrayAllocator() -{ - static DefaultValueArrayAllocator defaultAllocator; - static ValueArrayAllocator *arrayAllocator = &defaultAllocator; - return arrayAllocator; -} - -static struct DummyArrayAllocatorInitializer { - DummyArrayAllocatorInitializer() - { - arrayAllocator(); // ensure arrayAllocator() statics are initialized before main(). - } -} dummyArrayAllocatorInitializer; - -// ////////////////////////////////////////////////////////////////// -// class ValueInternalArray -// ////////////////////////////////////////////////////////////////// -bool -ValueInternalArray::equals( const IteratorState &x, - const IteratorState &other ) -{ - return x.array_ == other.array_ - && x.currentItemIndex_ == other.currentItemIndex_ - && x.currentPageIndex_ == other.currentPageIndex_; -} - - -void -ValueInternalArray::increment( IteratorState &it ) -{ - JSON_ASSERT_MESSAGE( it.array_ && - (it.currentPageIndex_ - it.array_->pages_)*itemsPerPage + it.currentItemIndex_ - != it.array_->size_, - "ValueInternalArray::increment(): moving iterator beyond end" ); - ++(it.currentItemIndex_); - if ( it.currentItemIndex_ == itemsPerPage ) - { - it.currentItemIndex_ = 0; - ++(it.currentPageIndex_); - } -} - - -void -ValueInternalArray::decrement( IteratorState &it ) -{ - JSON_ASSERT_MESSAGE( it.array_ && it.currentPageIndex_ == it.array_->pages_ - && it.currentItemIndex_ == 0, - "ValueInternalArray::decrement(): moving iterator beyond end" ); - if ( it.currentItemIndex_ == 0 ) - { - it.currentItemIndex_ = itemsPerPage-1; - --(it.currentPageIndex_); - } - else - { - --(it.currentItemIndex_); - } -} - - -Value & -ValueInternalArray::unsafeDereference( const IteratorState &it ) -{ - return (*(it.currentPageIndex_))[it.currentItemIndex_]; -} - - -Value & -ValueInternalArray::dereference( const IteratorState &it ) -{ - JSON_ASSERT_MESSAGE( it.array_ && - (it.currentPageIndex_ - it.array_->pages_)*itemsPerPage + it.currentItemIndex_ - < it.array_->size_, - "ValueInternalArray::dereference(): dereferencing invalid iterator" ); - return unsafeDereference( it ); -} - -void -ValueInternalArray::makeBeginIterator( IteratorState &it ) const -{ - it.array_ = const_cast<ValueInternalArray *>( this ); - it.currentItemIndex_ = 0; - it.currentPageIndex_ = pages_; -} - - -void -ValueInternalArray::makeIterator( IteratorState &it, ArrayIndex index ) const -{ - it.array_ = const_cast<ValueInternalArray *>( this ); - it.currentItemIndex_ = index % itemsPerPage; - it.currentPageIndex_ = pages_ + index / itemsPerPage; -} - - -void -ValueInternalArray::makeEndIterator( IteratorState &it ) const -{ - makeIterator( it, size_ ); -} - - -ValueInternalArray::ValueInternalArray() - : pages_( 0 ) - , size_( 0 ) - , pageCount_( 0 ) -{ -} - - -ValueInternalArray::ValueInternalArray( const ValueInternalArray &other ) - : pages_( 0 ) - , pageCount_( 0 ) - , size_( other.size_ ) -{ - PageIndex minNewPages = other.size_ / itemsPerPage; - arrayAllocator()->reallocateArrayPageIndex( pages_, pageCount_, minNewPages ); - JSON_ASSERT_MESSAGE( pageCount_ >= minNewPages, - "ValueInternalArray::reserve(): bad reallocation" ); - IteratorState itOther; - other.makeBeginIterator( itOther ); - Value *value; - for ( ArrayIndex index = 0; index < size_; ++index, increment(itOther) ) - { - if ( index % itemsPerPage == 0 ) - { - PageIndex pageIndex = index / itemsPerPage; - value = arrayAllocator()->allocateArrayPage(); - pages_[pageIndex] = value; - } - new (value) Value( dereference( itOther ) ); - } -} - - -ValueInternalArray & -ValueInternalArray::operator =( const ValueInternalArray &other ) -{ - ValueInternalArray temp( other ); - swap( temp ); - return *this; -} - - -ValueInternalArray::~ValueInternalArray() -{ - // destroy all constructed items - IteratorState it; - IteratorState itEnd; - makeBeginIterator( it); - makeEndIterator( itEnd ); - for ( ; !equals(it,itEnd); increment(it) ) - { - Value *value = &dereference(it); - value->~Value(); - } - // release all pages - PageIndex lastPageIndex = size_ / itemsPerPage; - for ( PageIndex pageIndex = 0; pageIndex < lastPageIndex; ++pageIndex ) - arrayAllocator()->releaseArrayPage( pages_[pageIndex] ); - // release pages index - arrayAllocator()->releaseArrayPageIndex( pages_, pageCount_ ); -} - - -void -ValueInternalArray::swap( ValueInternalArray &other ) -{ - Value **tempPages = pages_; - pages_ = other.pages_; - other.pages_ = tempPages; - ArrayIndex tempSize = size_; - size_ = other.size_; - other.size_ = tempSize; - PageIndex tempPageCount = pageCount_; - pageCount_ = other.pageCount_; - other.pageCount_ = tempPageCount; -} - -void -ValueInternalArray::clear() -{ - ValueInternalArray dummy; - swap( dummy ); -} - - -void -ValueInternalArray::resize( ArrayIndex newSize ) -{ - if ( newSize == 0 ) - clear(); - else if ( newSize < size_ ) - { - IteratorState it; - IteratorState itEnd; - makeIterator( it, newSize ); - makeIterator( itEnd, size_ ); - for ( ; !equals(it,itEnd); increment(it) ) - { - Value *value = &dereference(it); - value->~Value(); - } - PageIndex pageIndex = (newSize + itemsPerPage - 1) / itemsPerPage; - PageIndex lastPageIndex = size_ / itemsPerPage; - for ( ; pageIndex < lastPageIndex; ++pageIndex ) - arrayAllocator()->releaseArrayPage( pages_[pageIndex] ); - size_ = newSize; - } - else if ( newSize > size_ ) - resolveReference( newSize ); -} - - -void -ValueInternalArray::makeIndexValid( ArrayIndex index ) -{ - // Need to enlarge page index ? - if ( index >= pageCount_ * itemsPerPage ) - { - PageIndex minNewPages = (index + 1) / itemsPerPage; - arrayAllocator()->reallocateArrayPageIndex( pages_, pageCount_, minNewPages ); - JSON_ASSERT_MESSAGE( pageCount_ >= minNewPages, "ValueInternalArray::reserve(): bad reallocation" ); - } - - // Need to allocate new pages ? - ArrayIndex nextPageIndex = - (size_ % itemsPerPage) != 0 ? size_ - (size_%itemsPerPage) + itemsPerPage - : size_; - if ( nextPageIndex <= index ) - { - PageIndex pageIndex = nextPageIndex / itemsPerPage; - PageIndex pageToAllocate = (index - nextPageIndex) / itemsPerPage + 1; - for ( ; pageToAllocate-- > 0; ++pageIndex ) - pages_[pageIndex] = arrayAllocator()->allocateArrayPage(); - } - - // Initialize all new entries - IteratorState it; - IteratorState itEnd; - makeIterator( it, size_ ); - size_ = index + 1; - makeIterator( itEnd, size_ ); - for ( ; !equals(it,itEnd); increment(it) ) - { - Value *value = &dereference(it); - new (value) Value(); // Construct a default value using placement new - } -} - -Value & -ValueInternalArray::resolveReference( ArrayIndex index ) -{ - if ( index >= size_ ) - makeIndexValid( index ); - return pages_[index/itemsPerPage][index%itemsPerPage]; -} - -Value * -ValueInternalArray::find( ArrayIndex index ) const -{ - if ( index >= size_ ) - return 0; - return &(pages_[index/itemsPerPage][index%itemsPerPage]); -} - -ValueInternalArray::ArrayIndex -ValueInternalArray::size() const -{ - return size_; -} - -int -ValueInternalArray::distance( const IteratorState &x, const IteratorState &y ) -{ - return indexOf(y) - indexOf(x); -} - - -ValueInternalArray::ArrayIndex -ValueInternalArray::indexOf( const IteratorState &iterator ) -{ - if ( !iterator.array_ ) - return ArrayIndex(-1); - return ArrayIndex( - (iterator.currentPageIndex_ - iterator.array_->pages_) * itemsPerPage - + iterator.currentItemIndex_ ); -} - - -int -ValueInternalArray::compare( const ValueInternalArray &other ) const -{ - int sizeDiff( size_ - other.size_ ); - if ( sizeDiff != 0 ) - return sizeDiff; - - for ( ArrayIndex index =0; index < size_; ++index ) - { - int diff = pages_[index/itemsPerPage][index%itemsPerPage].compare( - other.pages_[index/itemsPerPage][index%itemsPerPage] ); - if ( diff != 0 ) - return diff; - } - return 0; -} |