/*
* Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
*
* 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;
OF_RESERVE_IVARS(OFMutableData, 4)
}
/**
* @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 OF_NULLABLE_PROPERTY (readonly, nonatomic) void *mutableItems
OF_RETURNS_INNER_POINTER;
/**
* @brief The first item of the OFMutableData or `NULL`.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) void *mutableFirstItem
OF_RETURNS_INNER_POINTER;
/**
* @brief The last item of the OFMutableData or `NULL`.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) void *mutableLastItem
OF_RETURNS_INNER_POINTER;
/**
* @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 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 *)mutableItemAtIndex: (size_t)index OF_RETURNS_INNER_POINTER;
/**
* @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: (OFRange)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
OF_ASSUME_NONNULL_END