/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFData.h"
OF_ASSUME_NONNULL_BEGIN
@class OFString;
@class OFURL;
/*!
* @class OFMutableData OFMutableData.h ObjFW/OFMutableData.h
*
* @brief A class for storing and manipulating arbitrary data in an array.
*/
@interface OFMutableData: OFData
{
size_t _capacity;
}
/*!
* @brief Creates a new OFMutableData with an item size of 1.
*
* @return A new autoreleased OFMutableData
*/
+ (instancetype)data;
/*!
* @brief Creates a new OFMutableData whose items all have the same specified
* size.
*
* @param itemSize The size of a single element in the OFMutableData
* @return A new autoreleased OFMutableData
*/
+ (instancetype)dataWithItemSize: (size_t)itemSize;
/*!
* @brief Creates a new OFMutableData with enough memory to hold the specified
* number of items which all have an item size of 1.
*
* @param capacity The initial capacity for the OFMutableData
* @return A new autoreleased OFMutableData
*/
+ (instancetype)dataWithCapacity: (size_t)capacity;
/*!
* @brief Creates a new OFMutableData with enough memory to hold the specified
* number of items which all have the same specified size.
*
* @param itemSize The size of a single element in the OFMutableData
* @param capacity The initial capacity for the OFMutableData
* @return A new autoreleased OFMutableData
*/
+ (instancetype)dataWithItemSize: (size_t)itemSize
capacity: (size_t)capacity;
/*!
* @brief Initializes an already allocated OFMutableData with an item size of 1.
*
* @return An initialized OFMutableData
*/
- (instancetype)init;
/*!
* @brief Initializes an already allocated OFMutableData whose items all have
* the same size.
*
* @param itemSize The size of a single element in the OFMutableData
* @return An initialized OFMutableData
*/
- (instancetype)initWithItemSize: (size_t)itemSize;
/*!
* @brief Initializes an already allocated OFMutableData with enough memory to
* hold the the specified number of items which all have an item size of
* 1.
*
* @param capacity The initial capacity for the OFMutableData
* @return An initialized OFMutableData
*/
- (instancetype)initWithCapacity: (size_t)capacity;
/*!
* @brief Initializes an already allocated OFMutableData with enough memory to
* hold the the specified number of items which all have the same
* specified size.
*
* @param itemSize The size of a single element in the OFMutableData
* @param capacity The initial capacity for the OFMutableData
* @return An initialized OFMutableData
*/
- (instancetype)initWithItemSize: (size_t)itemSize
capacity: (size_t)capacity;
/*!
* @brief Adds an item to the OFMutableData.
*
* @param item A pointer to an arbitrary item
*/
- (void)addItem: (const void *)item;
/*!
* @brief Adds an item to the OFMutableData at the specified index.
*
* @param item A pointer to an arbitrary item
* @param index The index where the item should be added
*/
- (void)insertItem: (const void *)item
atIndex: (size_t)index;
/*!
* @brief Adds items from a C array to the OFMutableData.
*
* @param items A C array containing the items to add
* @param count The number of items to add
*/
- (void)addItems: (const void *)items
count: (size_t)count;
/*!
* @brief Adds items from a C array to the OFMutableData at the specified index.
*
* @param items A C array containing the items to add
* @param index The index where the items should be added
* @param count The number of items to add
*/
- (void)insertItems: (const void *)items
atIndex: (size_t)index
count: (size_t)count;
/*!
* @brief Increases the count by the specified number. The new items are all
* filled with null bytes.
*
* @param count The count by which to increase the count
*/
- (void)increaseCountBy: (size_t)count;
/*!
* @brief Removes the item at the specified index.
*
* @param index The index of the item to remove
*/
- (void)removeItemAtIndex: (size_t)index;
/*!
* @brief Removes the specified amount of items at the specified index.
*
* @param range The range of items to remove
*/
- (void)removeItemsInRange: (of_range_t)range;
/*!
* @brief Removes the last item.
*/
- (void)removeLastItem;
/*!
* @brief Removes all items.
*/
- (void)removeAllItems;
/*!
* @brief Converts the mutable URL to an immutable URL.
*/
- (void)makeImmutable;
@end
@interface OFMutableData (MutableRetrieving)
/* GCC does not like overriding properties with a different type. */
#if defined(__clang__) || defined(DOXYGEN)
/*!
* @brief All items of the OFMutableData as a C array.
*
* @warning The pointer is only valid until the OFMutableData is changed!
*
* Modifying the returned array directly is allowed and will change the contents
* of the data.
*/
@property (readonly, nonatomic) void *items OF_RETURNS_INNER_POINTER;
/*!
* @brief The first item of the OFMutableData or `NULL`.
*
* Modifying the returned item directly is allowed and will change the contents
* of the data.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) void *firstItem
OF_RETURNS_INNER_POINTER;
/*!
* @brief Last item of the OFMutableData or `NULL`.
*
* Modifying the returned item directly is allowed and will change the contents
* of the data.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) void *lastItem
OF_RETURNS_INNER_POINTER;
#else
- (void *)items;
- (nullable void *)firstItem;
- (nullable void *)lastItem;
#endif
/*!
* @brief Returns a specific item of the OFMutableData.
*
* Modifying the returned item directly is allowed and will change the contents
* of the data.
*
* @param index The number of the item to return
* @return The specified item of the OFMutableData
*/
- (void *)itemAtIndex: (size_t)index OF_RETURNS_INNER_POINTER;
@end
OF_ASSUME_NONNULL_END