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#import "OFBigDataArray.h"
#import "OFSystemInfo.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
@implementation OFBigDataArray
- init
{
return [self initWithItemSize: 1
capacity: 0];
}
- initWithItemSize: (size_t)itemSize
{
return [self initWithItemSize: itemSize
capacity: 0];
}
- initWithItemSize: (size_t)itemSize
capacity: (size_t)capacity
{
self = [super init];
@try {
size_t size, lastPageByte;
if (itemSize == 0)
@throw [OFInvalidArgumentException exception];
if (capacity > SIZE_MAX / itemSize)
@throw [OFOutOfRangeException exception];
lastPageByte = [OFSystemInfo pageSize] - 1;
size = (capacity * itemSize + lastPageByte) & ~lastPageByte;
if (size == 0)
size = lastPageByte + 1;
_items = [self allocMemoryWithSize: size];
_itemSize = itemSize;
_capacity = size / itemSize;
_size = size;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)addItem: (const void*)item
{
if (SIZE_MAX - _count < 1 || _count + 1 > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + 1 > _capacity) {
size_t size, lastPageByte;
lastPageByte = [OFSystemInfo pageSize] - 1;
size = ((_count + 1) * _itemSize + lastPageByte) &
~lastPageByte;
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
memcpy(_items + _count * _itemSize, item, _itemSize);
_count++;
}
- (void)addItems: (const void*)items
count: (size_t)count
{
if (count > SIZE_MAX - _count || _count + count > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + count > _capacity) {
size_t size, lastPageByte;
lastPageByte = [OFSystemInfo pageSize] - 1;
size = ((_count + count) * _itemSize + lastPageByte) &
~lastPageByte;
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
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#import "OFBigDataArray.h"
#import "OFSystemInfo.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
#import "macros.h"
@implementation OFBigDataArray
- init
{
return [self initWithItemSize: 1
capacity: 0];
}
- initWithItemSize: (size_t)itemSize
{
return [self initWithItemSize: itemSize
capacity: 0];
}
- initWithItemSize: (size_t)itemSize
capacity: (size_t)capacity
{
self = [super init];
@try {
size_t size, pageSize;
if (itemSize == 0)
@throw [OFInvalidArgumentException exception];
if (capacity > SIZE_MAX / itemSize)
@throw [OFOutOfRangeException exception];
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, capacity * itemSize);
if (size == 0)
size = pageSize;
_items = [self allocMemoryWithSize: size];
_itemSize = itemSize;
_capacity = size / itemSize;
_size = size;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)addItem: (const void*)item
{
if (SIZE_MAX - _count < 1 || _count + 1 > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + 1 > _capacity) {
size_t size, pageSize;
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, (_count + 1) * _itemSize);
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
memcpy(_items + _count * _itemSize, item, _itemSize);
_count++;
}
- (void)addItems: (const void*)items
count: (size_t)count
{
if (count > SIZE_MAX - _count || _count + count > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + count > _capacity) {
size_t size, pageSize;
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, (_count + count) * _itemSize);
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
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count: (size_t)count
{
if (count > SIZE_MAX - _count || index > _count ||
_count + count > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + count > _capacity) {
size_t size, lastPageByte;
lastPageByte = [OFSystemInfo pageSize] - 1;
size = ((_count + count) * _itemSize + lastPageByte) &
~lastPageByte;
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
memmove(_items + (index + count) * _itemSize,
_items + index * _itemSize, (_count - index) * _itemSize);
memcpy(_items + index * _itemSize, items, count * _itemSize);
_count += count;
}
- (void)removeItemsInRange: (of_range_t)range
{
size_t lastPageByte, size;
if (range.length > SIZE_MAX - range.location ||
range.location + range.length > _count)
@throw [OFOutOfRangeException exception];
memmove(_items + range.location * _itemSize,
_items + (range.location + range.length) * _itemSize,
(_count - range.location - range.length) * _itemSize);
_count -= range.length;
lastPageByte = [OFSystemInfo pageSize] - 1;
size = (_count * _itemSize + lastPageByte) & ~lastPageByte;
if (_size != size && size > lastPageByte) {
@try {
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
} @catch (OFOutOfMemoryException *e) {
/* We don't care, as we only made it smaller */
}
}
}
- (void)removeLastItem
{
size_t lastPageByte, size;
if (_count == 0)
return;
_count--;
lastPageByte = [OFSystemInfo pageSize] - 1;
size = (_count * _itemSize + lastPageByte) & ~lastPageByte;
if (_size != size && size > lastPageByte) {
@try {
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
} @catch (OFOutOfMemoryException *e) {
/* We don't care, as we only made it smaller */
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count: (size_t)count
{
if (count > SIZE_MAX - _count || index > _count ||
_count + count > SIZE_MAX / _itemSize)
@throw [OFOutOfRangeException exception];
if (_count + count > _capacity) {
size_t size, pageSize;
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, (_count + count) * _itemSize);
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
}
memmove(_items + (index + count) * _itemSize,
_items + index * _itemSize, (_count - index) * _itemSize);
memcpy(_items + index * _itemSize, items, count * _itemSize);
_count += count;
}
- (void)removeItemsInRange: (of_range_t)range
{
size_t pageSize, size;
if (range.length > SIZE_MAX - range.location ||
range.location + range.length > _count)
@throw [OFOutOfRangeException exception];
memmove(_items + range.location * _itemSize,
_items + (range.location + range.length) * _itemSize,
(_count - range.location - range.length) * _itemSize);
_count -= range.length;
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, _count * _itemSize);
if (_size != size && size >= pageSize) {
@try {
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
} @catch (OFOutOfMemoryException *e) {
/* We don't care, as we only made it smaller */
}
}
}
- (void)removeLastItem
{
size_t pageSize, size;
if (_count == 0)
return;
_count--;
pageSize = [OFSystemInfo pageSize];
size = OF_ROUND_UP_POW2(pageSize, _count * _itemSize);
if (_size != size && size >= pageSize) {
@try {
_items = [self resizeMemory: _items
size: size];
_capacity = size / _itemSize;
_size = size;
} @catch (OFOutOfMemoryException *e) {
/* We don't care, as we only made it smaller */
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