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/*
* Copyright (c) 2008-2021 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.
*
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/*
* 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.
*
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*
* For security reasons, serialization and deserialization is only implemented
* for OFData with item size 1.
*/
@interface OFData: OFObject <OFCopying, OFMutableCopying, OFComparing,
OFSerialization, OFMessagePackRepresentation>
{
unsigned char *_items;
size_t _count, _itemSize;
bool _freeWhenDone;
@private
OFData *_parentData;
OF_RESERVE_IVARS(OFData, 4)
}
/**
* @brief The size of a single item in the OFData in bytes.
*/
@property (readonly, nonatomic) size_t itemSize;
/**
* @brief The number of items in the OFData.
*/
@property (readonly, nonatomic) size_t count;
/**
* @brief All elements of the OFData as a C array.
*
* @warning The pointer is only valid until the OFData is changed!
*/
@property (readonly, nonatomic) const void *items OF_RETURNS_INNER_POINTER;
/**
* @brief The first item of the OFData or `NULL`.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) const void *firstItem
OF_RETURNS_INNER_POINTER;
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*
* For security reasons, serialization and deserialization is only implemented
* for OFData with item size 1.
*/
@interface OFData: OFObject <OFCopying, OFMutableCopying, OFComparing,
OFSerialization, OFMessagePackRepresentation>
{
unsigned char *_Nullable _items;
size_t _count, _itemSize;
bool _freeWhenDone;
@private
OFData *_Nullable _parentData;
OF_RESERVE_IVARS(OFData, 4)
}
/**
* @brief The size of a single item in the OFData in bytes.
*/
@property (readonly, nonatomic) size_t itemSize;
/**
* @brief The number of items in the OFData.
*/
@property (readonly, nonatomic) size_t count;
/**
* @brief All elements of the OFData as a C array.
*
* @warning The pointer is only valid until the OFData is changed!
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) const void *items
OF_RETURNS_INNER_POINTER;
/**
* @brief The first item of the OFData or `NULL`.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) const void *firstItem
OF_RETURNS_INNER_POINTER;
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+ (instancetype)dataWithItems: (const void *)items
count: (size_t)count
itemSize: (size_t)itemSize;
/**
* @brief Creates a new OFData with the specified `count` items of size 1 by
* taking over ownership of the specified items pointer.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithItemsNoCopy: (void *)items
count: (size_t)count
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Creates a new OFData with the specified `count` items of the
* specified size by taking ownership of the specified items pointer.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return A new autoreleased OFData
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+ (instancetype)dataWithItems: (const void *)items
count: (size_t)count
itemSize: (size_t)itemSize;
/**
* @brief Creates a new OFData with the specified `count` items of size 1 by
* taking over ownership of the specified items pointer.
*
* If initialization fails for whatever reason, the passed memory is *not*
* free'd if `freeWhenDone` is true.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithItemsNoCopy: (void *)items
count: (size_t)count
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Creates a new OFData with the specified `count` items of the
* specified size by taking ownership of the specified items pointer.
*
* If initialization fails for whatever reason, the passed memory is *not*
* free'd if `freeWhenDone` is true.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return A new autoreleased OFData
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* @param URL The URL to the contents for the OFData
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithContentsOfURL: (OFURL *)URL;
/**
* @brief Creates a new OFData with an item size of 1, containing the data of
* the string representation.
*
* @param string The string representation of the data
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithStringRepresentation: (OFString *)string;
/**
* @brief Creates a new OFData with an item size of 1, containing the data of
* the Base64-encoded string.
*
* @param string The string with the Base64-encoded data
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithBase64EncodedString: (OFString *)string;
/**
* @brief Initialized an already allocated OFData with the specified `count`
* items of size 1.
*
* @param items The items to store in the OFData
* @param count The number of items
* @return An initialized OFData
*/
- (instancetype)initWithItems: (const void *)items count: (size_t)count;
/**
* @brief Initialized an already allocated OFData with the specified `count`
* items of the specified size.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @return An initialized OFData
*/
- (instancetype)initWithItems: (const void *)items
count: (size_t)count
itemSize: (size_t)itemSize;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of size 1 by taking over ownership of the specified items
* pointer.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return An initialized OFData
*/
- (instancetype)initWithItemsNoCopy: (void *)items
count: (size_t)count
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of the specified size by taking ownership of the specified
* items pointer.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return An initialized OFData
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* @param URL The URL to the contents for the OFData
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithContentsOfURL: (OFURL *)URL;
/**
* @brief Creates a new OFData with an item size of 1, containing the data of
* the hex string representation.
*
* @param string The hex string representation of the data
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithStringRepresentation: (OFString *)string;
/**
* @brief Creates a new OFData with an item size of 1, containing the data of
* the Base64-encoded string.
*
* @param string The string with the Base64-encoded data
* @return A new autoreleased OFData
*/
+ (instancetype)dataWithBase64EncodedString: (OFString *)string;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of size 1.
*
* @param items The items to store in the OFData
* @param count The number of items
* @return An initialized OFData
*/
- (instancetype)initWithItems: (const void *)items count: (size_t)count;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of the specified size.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @return An initialized OFData
*/
- (instancetype)initWithItems: (const void *)items
count: (size_t)count
itemSize: (size_t)itemSize;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of size 1 by taking over ownership of the specified items
* pointer.
*
* If initialization fails for whatever reason, the passed memory is *not*
* free'd if `freeWhenDone` is true.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return An initialized OFData
*/
- (instancetype)initWithItemsNoCopy: (void *)items
count: (size_t)count
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Initializes an already allocated OFData with the specified `count`
* items of the specified size by taking ownership of the specified
* items pointer.
*
* If initialization fails for whatever reason, the passed memory is *not*
* free'd if `freeWhenDone` is true.
*
* @param items The items to store in the OFData
* @param count The number of items
* @param itemSize The item size of a single item in bytes
* @param freeWhenDone Whether to free the pointer when it is no longer needed
* by the OFData
* @return An initialized OFData
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* @param URL The URL to the contents for the OFData
* @return A new autoreleased OFData
*/
- (instancetype)initWithContentsOfURL: (OFURL *)URL;
/**
* @brief Initializes an already allocated OFData with an item size of 1,
* containing the data of the string representation.
*
* @param string The string representation of the data
* @return A new autoreleased OFData
*/
- (instancetype)initWithStringRepresentation: (OFString *)string;
/**
* @brief Initializes an already allocated OFData with an item size of 1,
* containing the data of the Base64-encoded string.
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* @param URL The URL to the contents for the OFData
* @return A new autoreleased OFData
*/
- (instancetype)initWithContentsOfURL: (OFURL *)URL;
/**
* @brief Initializes an already allocated OFData with an item size of 1,
* containing the data of the hex string representation.
*
* @param string The hex string representation of the data
* @return A new autoreleased OFData
*/
- (instancetype)initWithStringRepresentation: (OFString *)string;
/**
* @brief Initializes an already allocated OFData with an item size of 1,
* containing the data of the Base64-encoded string.
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