ObjFW  Check-in [b7097a67b6]

/*!
 * @brief Gets args and argv.
 *
 * @param argc A pointer where a pointer to argc should be stored
 * @param argv A pointer where a pointer to argv should be stored
 */
- (void)getArgumentCount: (int *OF_NONNULL *OF_NONNULL)argc
       andArgumentValues: (char *OF_NONNULL *OF_NONNULL *OF_NONNULL[])argv;

/*!
 * @brief Returns the name of the program (argv[0]).
 *
 * @return The name of the program (argv[0])
 */
- (OFString*)programName;

@interface OFObject (OFApplicationDelegate) <OFApplicationDelegate>
@end

#ifdef __cplusplus
extern "C" {
#endif
extern int of_application_main(int *OF_NONNULL, char *OF_NONNULL *OF_NONNULL[],
    Class);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

/*!
 * @brief A block for mapping objects to objects in an OFArray.
 *
 * @param object The object to map
 * @param index The index of the object to map
 * @return The object to map to
 */
typedef id OF_NONNULL (^of_array_map_block_t)(id object, size_t index);

/*!
 * @brief A block for folding an OFArray.
 *
 * @param left The object to which the object has been folded so far
 * @param right The object that should be added to the left object
 * @return The left and right side folded into one object
 */
typedef id OF_NULLABLE (^of_array_fold_block_t)(id OF_NULLABLE left, id right);
#endif

/*!
 * @class OFArray OFArray.h ObjFW/OFArray.h
 *
 * @brief An abstract class for storing objects in an array.
 */

 * @brief Creates a new OFArray with the objects from the specified C array of
 *	  the specified length.
 *
 * @param objects A C array of objects
 * @param count The length of the C array
 * @return A new autoreleased OFArray
 */
+ (instancetype)
    arrayWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
	       count: (size_t)count;

/*!
 * @brief Initializes an OFArray with the specified object.
 *
 * @param object An object
 * @return An initialized OFArray
 */

 * @brief Initializes an OFArray with the objects from the specified C array of
 *	  the specified length.
 *
 * @param objects A C array of objects
 * @param count The length of the C array
 * @return An initialized OFArray
 */
- initWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
	    count: (size_t)count;

/*!
 * @brief Returns the object at the specified index in the array.
 *
 * @warning The returned object is *not* retained and autoreleased for
 *	    performance reasons!
 *
 * @param index The index of the object to return
 * @return The object at the specified index in the array
 */
- (ObjectType)objectAtIndex: (size_t)index;
- (ObjectType)objectAtIndexedSubscript: (size_t)index;

/*!
 * @brief Copies the objects at the specified range to the specified buffer.
 *
 * @param buffer The buffer to copy the objects to
 * @param range The range to copy
 */
- (void)getObjects: (ObjectType __unsafe_unretained OF_NONNULL *OF_NONNULL)
			buffer
	   inRange: (of_range_t)range;

/*!
 * @brief Returns the objects of the array as a C array.
 *
 * @return The objects of the array as a C array
 */
- (ObjectType const __unsafe_unretained OF_NONNULL *OF_NONNULL)objects;

/*!
 * @brief Returns the index of the first object that is equivalent to the
 *	  specified object or `OF_NOT_FOUND` if it was not found.
 *
 * @param object The object whose index is returned
 * @return The index of the first object equivalent to the specified object

	size_t	      _count;
	unsigned long _mutations;
	unsigned long *_mutationsPtr;
	size_t	      _position;
}

- initWithArray: (OFArray*)data
   mutationsPtr: (unsigned long *OF_NULLABLE)mutationsPtr;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableArray.h"

#ifndef NSINTEGER_DEFINED
/* Required for array literals to work */
@compatibility_alias NSArray OFArray;
#endif

@class OFArray OF_GENERIC(ObjectType);

#ifdef OF_HAVE_BLOCKS
typedef void (^of_dictionary_enumeration_block_t)(id key, id object,
     bool *stop);
typedef bool (^of_dictionary_filter_block_t)(id key, id object);
typedef id OF_NONNULL (^of_dictionary_map_block_t)(id key, id object);
#endif

/*!
 * @class OFDictionary OFDictionary.h ObjFW/OFDictionary.h
 *
 * @brief An abstract class for storing objects in a dictionary.
 *

 *
 * @param keys An array of keys
 * @param objects An array of objects
 * @param count The number of objects in the arrays
 * @return A new autoreleased OFDictionary
 */
+ (instancetype)
    dictionaryWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
		  forKeys: (KeyType const OF_NONNULL *OF_NONNULL)keys
		    count: (size_t)count;

/*!
 * @brief Creates a new OFDictionary with the specified keys objects.
 *
 * @param firstKey The first key
 * @return A new autoreleased OFDictionary

 *	  and objects.
 *
 * @param keys An array of keys
 * @param objects An array of objects
 * @param count The number of objects in the arrays
 * @return An initialized OFDictionary
 */
- initWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
	  forKeys: (KeyType const OF_NONNULL *OF_NONNULL)keys
	    count: (size_t)count;

/*!
 * @brief Initializes an already allocated OFDictionary with the specified keys
 *	  and objects.
 *
 * @param firstKey The first key

 */
#define of_fast_enumeration_state_t NSFastEnumerationState
#ifndef NSINTEGER_DEFINED
typedef struct {
	/// Arbitrary state information for the enumeration
	unsigned long state;
	/// Pointer to a C array of objects to return
	id __unsafe_unretained OF_NULLABLE *OF_NULLABLE itemsPtr;
	/// Arbitrary state information to detect mutations
	unsigned long *OF_NULLABLE mutationsPtr;
	/// Additional arbitrary state information
	unsigned long extra[5];
} of_fast_enumeration_state_t;
#endif

/*!
 * @protocol OFFastEnumeration OFEnumerator.h ObjFW/OFEnumerator.h

 * @param state Context information for the enumeration
 * @param objects A pointer to an array where to put the objects
 * @param count The number of objects that can be stored at objects
 * @return The number of objects returned in objects or 0 when the enumeration
 *	   finished.
 */
- (int)countByEnumeratingWithState: (of_fast_enumeration_state_t*)state
			   objects: (id __unsafe_unretained OF_NONNULL
					*OF_NONNULL)objects
			     count: (int)count;
@end

OF_ASSUME_NONNULL_END

#endif
/*!
 * @brief Returns a C string describing the specified request method.
 *
 * @param method The request method which should be described as a C string
 * @return A C string describing the specified request method
 */
extern const char *OF_NULLABLE of_http_request_method_to_string(
    of_http_request_method_t method);

/*!
 * @brief Returns the request method for the specified string.
 *
 * @param string The string for which the request method should be returned
 * @return The request method for the specified string

@class OFDataArray;

@interface OFKernelEventObserver_poll: OFKernelEventObserver
{
	OFDataArray *_FDs;
	size_t _maxFD;
	id __unsafe_unretained *_FDToObject;
}
@end

OF_ASSUME_NONNULL_END

 */
struct of_list_object_t {
	/// A pointer to the next list object in the list
	of_list_object_t *next;
	/// A pointer to the previous list object in the list
	of_list_object_t *previous;
	/// The object for the list object
	id __unsafe_unretained object;
};

/*!
 * @class OFList OFList.h ObjFW/OFList.h
 *
 * @brief A class which provides easy to use double-linked lists.
 */

/*!
 * @struct of_map_table_functions_t OFMapTable.h ObjFW/OFMapTable.h
 *
 * @brief A struct describing the functions to be used by the map table.
 */
typedef struct {
	/// The function to retain keys / values
	void *OF_NONNULL (*OF_NULLABLE retain)(void *value);
	/// The function to release keys / values
	void (*OF_NULLABLE release)(void *value);
	/// The function to hash keys
	uint32_t (*OF_NULLABLE hash)(void *value);
	/// The function to compare keys / values

	bool (*OF_NULLABLE equal)(void *value1, void *value2);
} of_map_table_functions_t;

#ifdef OF_HAVE_BLOCKS
/*!
 * @brief A block for enumerating an OFMapTable.
 *
 * @param key The current key

/*!
 * @brief A block for replacing values in an OFMapTable.
 *
 * @param key The key of the value to replace
 * @param value The value to replace
 * @return The value to replace the value with
 */
typedef void *OF_NONNULL (^of_map_table_replace_block_t)(
    void *key, void *value);
#endif

@class OFMapTableEnumerator;

/*!
 * @class OFMapTable OFMapTable.h ObjFW/OFMapTable.h
 *

/*!
 * @brief A block for replacing values in an OFMutableArray.
 *
 * @param object The object to replace
 * @param index The index of the object to replace
 * @return The object to replace the object with
 */
typedef id OF_NONNULL (^of_array_replace_block_t)(id object, size_t index);
#endif

/*!
 * @class OFMutableArray OFArray.h ObjFW/OFArray.h
 *
 * @brief An abstract class for storing, adding and removing objects in an
 *	  array.

/*!
 * @brief A block for replacing objects in an OFMutableDictionary.
 *
 * @param key The key of the object to replace
 * @param object The object to replace
 * @return The object to replace the object with
 */
typedef id OF_NONNULL (^of_dictionary_replace_block_t)(id key, id object);
#endif

/*!
 * @class OFMutableDictionary OFDictionary.h ObjFW/OFDictionary.h
 *
 * @brief An abstract class for storing and changing objects in a dictionary.
 */

- (of_comparison_result_t)compare: (id <OFComparing>)object;
@end

#ifdef __cplusplus
extern "C" {
#endif
extern id of_alloc_object(Class class_, size_t extraSize,
    size_t extraAlignment, void *OF_NULLABLE *OF_NULLABLE extra);
extern void OF_NO_RETURN_FUNC of_method_not_found(id self, SEL _cmd);
extern uint32_t of_hash_seed;
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFObject+Serialization.h"

/*!
 * @brief Creates a new set with the specified objects.
 *
 * @param objects An array of objects for the set
 * @param count The number of objects in the specified array
 * @return A new, autoreleased set with the specified objects
 */
+ (instancetype)setWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
			 count: (size_t)count;

/*!
 * @brief Initializes an already allocated set with the specified set.
 *
 * @param set The set to initialize the set with
 * @return An initialized set with the specified set

/*!
 * @brief Initializes an already allocated set with the specified objects.
 *
 * @param objects An array of objects for the set
 * @param count The number of objects in the specified array
 * @return An initialized set with the specified objects
 */
- initWithObjects: (ObjectType const OF_NONNULL *OF_NONNULL)objects
	    count: (size_t)count;

/*!
 * @brief Initializes an already allocated set with the specified object and
 *	  va_list.
 *
 * @param firstObject The first object for the set

extern "C" {
#endif
/*! @file */

/*!
 * @brief The standard input as an OFStream.
 */
extern OFStdIOStream *OF_NULLABLE of_stdin;

/*!
 * @brief The standard output as an OFStream.
 */
extern OFStdIOStream *OF_NULLABLE of_stdout;

/*!
 * @brief The standard error as an OFStream.
 */
extern OFStdIOStream *OF_NULLABLE of_stderr;

extern void of_log(OFConstantString*, ...);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

 * @param stream The stream on which data was read
 * @param buffer A buffer with the data that has been read
 * @param length The length of the data that has been read
 * @param exception An exception which occurred while reading or nil on success
 * @return A bool whether the same block should be used for the next read
 */
typedef bool (^of_stream_async_read_block_t)(OFStream *stream, void *buffer,
    size_t length, OFException *OF_NULLABLE exception);

/*!
 * @brief A block which is called when a line was read from the stream.
 *
 * @param stream The stream on which a line was read
 * @param line The line which has been read or nil when the end of stream
 *	       occurred
 * @param exception An exception which occurred while reading or nil on success
 * @return A bool whether the same block should be used for the next read
 */
typedef bool (^of_stream_async_read_line_block_t)(OFStream *stream,
    OFString *OF_NULLABLE line, OFException *OF_NULLABLE exception);
#endif

/*!
 * @class OFStream OFStream.h ObjFW/OFStream.h
 *
 * @brief A base class for different types of streams.
 *

 * @brief A block which is called to replace unknown XML entities in an XML
 *	  string.
 *
 * @param string The XML string which contains an unknown entity
 * @param entity The XML entity which is unknown
 * @return A replacement string for the unknown entity
 */
typedef OFString *OF_NULLABLE (^of_string_xml_unescaping_block_t)(
    OFString *string, OFString *entity);
#endif

/*!
 * @protocol OFStringXMLUnescapingDelegate OFString.h ObjFW/OFString.h
 *
 * @brief A protocol that needs to be implemented by delegates for

 * @brief A block which is called when the socket connected.
 *
 * @param socket The socket which connected
 * @param exception An exception which occurred while connecting the socket or
 *		    nil on success
 */
typedef void (^of_tcp_socket_async_connect_block_t)(OFTCPSocket *socket,
    OFException *OF_NULLABLE exception);

/*!
 * @brief A block which is called when the socket accepted a connection.
 *
 * @param socket The socket which accepted the connection
 * @param acceptedSocket The socket which has been accepted
 * @param exception An exception which occurred while accepting the socket or
 *		    nil on success
 * @return A bool whether the same block should be used for the next incoming
 *	   connection
 */
typedef bool (^of_tcp_socket_async_accept_block_t)(OFTCPSocket *socket,
    OFTCPSocket *acceptedSocket, OFException *OF_NULLABLE exception);
#endif

/*!
 * @class OFTCPSocket OFTCPSocket.h ObjFW/OFTCPSocket.h
 *
 * @brief A class which provides functions to create and use TCP sockets.
 *

 */
- (bool)isTCPNoDelayEnabled;
@end

#ifdef __cplusplus
extern "C" {
#endif
extern Class OF_NULLABLE of_tls_socket_class;
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#if defined(OF_HAVE_THREADS) && defined(OF_HAVE_BLOCKS)
/*!
 * @brief A block to be executed in a new thread.
 *
 * @return The object which should be returned when the thread is joined
 */
typedef id OF_NULLABLE (^of_thread_block_t)(void);
#endif

/*!
 * @class OFThread OFThread.h ObjFW/OFThread.h
 *
 * @brief A class which provides portable threads.
 *

 * @param port The port of the host / port pair
 * @param address The address of the resolved host / port pair
 * @param exception An exception which occurred while resolving or nil on
 *		    success
 */
typedef void (^of_udp_socket_async_resolve_block_t)(OFString *host,
    uint16_t port, of_udp_socket_address_t address,
    OFException *OF_NULLABLE exception);

/*!
 * @brief A block which is called when a packet has been received.
 *
 * @param socket The UDP which received a packet
 * @param buffer The buffer the packet has been written to
 * @param length The length of the packet
 * @param sender The address of the sender of the packet
 * @param exception An exception which occurred while receiving or nil on
 *		    success
 * @return A bool whether the same block should be used for the next receive
 */
typedef bool (^of_udp_socket_async_receive_block_t)(OFUDPSocket *socket,
    void *buffer, size_t length, of_udp_socket_address_t sender,
    OFException *OF_NULLABLE exception);
#endif

/*!
 * @class OFUDPSocket OFUDPSocket.h ObjFW/OFUDPSocket.h
 *
 * @brief A class which provides functions to create and use UDP sockets.
 *

 *
 * @param host A pointer to an OFString*. If it is not NULL, it will be set to
 *	       the host of the host / port pair.
 * @param port A pointer to an uint16_t. If it is not NULL, the port of the
 *	       host / port pair will be written to it.
 * @param address The address for which the host and port should be retrieved
 */
+ (void)getHost: (OFString *__autoreleasing OF_NONNULL *OF_NULLABLE)host
	andPort: (uint16_t *OF_NULLABLE)port
     forAddress: (of_udp_socket_address_t*)address;

/*!
 * @brief Binds the socket to the specified host and port.
 *
 * @param host The host to bind to. Use `@"0.0.0.0"` for IPv4 or `@"::"` for
 *	       IPv6 to bind to all.

 *		     the specified tag
 * @param tag The tag to look for
 * @param data A pointer to a pointer that should be set to the start of the
 *	       extra field with the specified tag
 * @param size A pointer to an uint16_t that should be set to the size
 */
extern void of_zip_archive_entry_extra_field_find(OFDataArray *extraField,
    uint16_t tag, uint8_t *OF_NONNULL *OF_NONNULL data, uint16_t *size);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#ifdef OF_HAVE_OSATOMIC
# include <libkern/OSAtomic.h>
#endif

OF_ASSUME_NONNULL_BEGIN

static OF_INLINE int
of_atomic_int_add(volatile int *OF_NONNULL p, int i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p += i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_add_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	if (sizeof(int) == 4)

	return OSAtomicAdd32Barrier(i, p);
#else
# error of_atomic_int_add not implemented!
#endif
}

static OF_INLINE int32_t
of_atomic_int32_add(volatile int32_t *OF_NONNULL p, int32_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p += i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_add_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	__asm__ __volatile__ (

	return OSAtomicAdd32Barrier(i, p);
#else
# error of_atomic_int32_add not implemented!
#endif
}

static OF_INLINE void*
of_atomic_ptr_add(void *volatile OF_NULLABLE *OF_NONNULL p, intptr_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*(char* volatile*)p += i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_add_and_fetch(p, (void*)i);
#elif defined(OF_X86_64_ASM)
	__asm__ __volatile__ (

# endif
#else
# error of_atomic_ptr_add not implemented!
#endif
}

static OF_INLINE int
of_atomic_int_sub(volatile int *OF_NONNULL p, int i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p -= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_sub_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	if (sizeof(int) == 4)

	return OSAtomicAdd32Barrier(-i, p);
#else
# error of_atomic_int_sub not implemented!
#endif
}

static OF_INLINE int32_t
of_atomic_int32_sub(volatile int32_t *OF_NONNULL p, int32_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p -= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_sub_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	__asm__ __volatile__ (

	return OSAtomicAdd32Barrier(-i, p);
#else
# error of_atomic_int32_sub not implemented!
#endif
}

static OF_INLINE void*
of_atomic_ptr_sub(void *volatile OF_NULLABLE *OF_NONNULL p, intptr_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*(char* volatile*)p -= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_sub_and_fetch(p, (void*)i);
#elif defined(OF_X86_64_ASM)
	__asm__ __volatile__ (

# endif
#else
# error of_atomic_ptr_sub not implemented!
#endif
}

static OF_INLINE int
of_atomic_int_inc(volatile int *OF_NONNULL p)
{
#if !defined(OF_HAVE_THREADS)
	return ++*p;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_add_and_fetch(p, 1);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	int i;

	return OSAtomicIncrement32Barrier(p);
#else
# error of_atomic_int_inc not implemented!
#endif
}

static OF_INLINE int32_t
of_atomic_int32_inc(volatile int32_t *OF_NONNULL p)
{
#if !defined(OF_HAVE_THREADS)
	return ++*p;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_add_and_fetch(p, 1);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	int32_t i;

	return OSAtomicIncrement32Barrier(p);
#else
# error of_atomic_int32_inc not implemented!
#endif
}

static OF_INLINE int
of_atomic_int_dec(volatile int *OF_NONNULL p)
{
#if !defined(OF_HAVE_THREADS)
	return --*p;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_sub_and_fetch(p, 1);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	int i;

	return OSAtomicDecrement32Barrier(p);
#else
# error of_atomic_int_dec not implemented!
#endif
}

static OF_INLINE int32_t
of_atomic_int32_dec(volatile int32_t *OF_NONNULL p)
{
#if !defined(OF_HAVE_THREADS)
	return --*p;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_sub_and_fetch(p, 1);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	int32_t i;

	return OSAtomicDecrement32Barrier(p);
#else
# error of_atomic_int32_dec not implemented!
#endif
}

static OF_INLINE unsigned int
of_atomic_int_or(volatile unsigned int *OF_NONNULL p, unsigned int i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p |= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_or_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	if (sizeof(int) == 4)

	return OSAtomicOr32Barrier(i, p);
#else
# error of_atomic_int_or not implemented!
#endif
}

static OF_INLINE uint32_t
of_atomic_int32_or(volatile uint32_t *OF_NONNULL p, uint32_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p |= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_or_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	__asm__ __volatile__ (

	return OSAtomicOr32Barrier(i, p);
#else
# error of_atomic_int32_or not implemented!
#endif
}

static OF_INLINE unsigned int
of_atomic_int_and(volatile unsigned int *OF_NONNULL p, unsigned int i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p &= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_and_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	if (sizeof(int) == 4)

	return OSAtomicAnd32Barrier(i, p);
#else
# error of_atomic_int_and not implemented!
#endif
}

static OF_INLINE uint32_t
of_atomic_int32_and(volatile uint32_t *OF_NONNULL p, uint32_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p &= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_and_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	__asm__ __volatile__ (

	return OSAtomicAnd32Barrier(i, p);
#else
# error of_atomic_int32_and not implemented!
#endif
}

static OF_INLINE unsigned int
of_atomic_int_xor(volatile unsigned int *OF_NONNULL p, unsigned int i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p ^= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_xor_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	if (sizeof(int) == 4)

	return OSAtomicXor32Barrier(i, p);
#else
# error of_atomic_int_xor not implemented!
#endif
}

static OF_INLINE uint32_t
of_atomic_int32_xor(volatile uint32_t *OF_NONNULL p, uint32_t i)
{
#if !defined(OF_HAVE_THREADS)
	return (*p ^= i);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
	return __sync_xor_and_fetch(p, i);
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
	__asm__ __volatile__ (

	return OSAtomicXor32Barrier(i, p);
#else
# error of_atomic_int32_xor not implemented!
#endif
}

static OF_INLINE bool
of_atomic_int_cmpswap(volatile int *OF_NONNULL p, int o, int n)
{
#if !defined(OF_HAVE_THREADS)
	if (*p == o) {
		*p = n;
		return true;
	}

	return OSAtomicCompareAndSwapIntBarrier(o, n, p);
#else
# error of_atomic_int_cmpswap not implemented!
#endif
}

static OF_INLINE bool
of_atomic_int32_cmpswap(volatile int32_t *OF_NONNULL p, int32_t o, int32_t n)
{
#if !defined(OF_HAVE_THREADS)
	if (*p == o) {
		*p = n;
		return true;
	}

	return OSAtomicCompareAndSwap32Barrier(o, n, p);
#else
# error of_atomic_int32_cmpswap not implemented!
#endif
}

static OF_INLINE bool
of_atomic_ptr_cmpswap(void *volatile OF_NULLABLE *OF_NONNULL p,
    void *OF_NULLABLE o, void *OF_NULLABLE n)
{
#if !defined(OF_HAVE_THREADS)
	if (*p == o) {
		*p = n;
		return true;
	}

#import "macros.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern id objc_constructInstance(Class OF_NULLABLE, void *OF_NULLABLE);
extern void* objc_destructInstance(id);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#else
# define OF_GENERIC(...)
#endif

#if __has_feature(nullability)
# define OF_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin")
# define OF_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end")
# define OF_NONNULL __nonnull
# define OF_NULLABLE __nullable
#else
# define OF_ASSUME_NONNULL_BEGIN
# define OF_ASSUME_NONNULL_END
# define OF_NONNULL
# define OF_NULLABLE
# define nonnull
# define nullable
#endif

#if __has_feature(objc_kindof)
# define OF_KINDOF(cls) __kindof cls
#else

#import "macros.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int of_asprintf(
    char *OF_NULLABLE *OF_NONNULL, const char *OF_NONNULL, ...);
extern int of_vasprintf(
    char *OF_NULLABLE *OF_NONNULL, const char *OF_NONNULL, va_list);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

 *	       struct
 * @param protocol The protocol that should be inserted into the resulting
 *		   address struct
 *
 * @return An array of results. The list is terminated by NULL and should be
 *	   free'd after use.
 */
extern of_resolver_result_t *OF_NULLABLE *OF_NONNULL
    of_resolve_host(OFString *host, uint16_t port, int protocol);

/*!
 * @brief Converts the specified address to a string and port pair.
 *
 * @param address The address to convert to a string
 * @param addressLength The length of the address to convert to a string
 * @param host A pointer to an OFString* which should be set to the host of the
 *	       address or NULL if the host is not needed
 * @param port A pointer to an uint16_t which should be set to the port of the
 *	       address or NULL if the port is not needed
 */
extern void of_address_to_string_and_port(struct sockaddr *address,
    socklen_t addressLength,
    OFString *__autoreleasing OF_NONNULL *OF_NULLABLE host,
    uint16_t *OF_NULLABLE port);

/*!
 * @brief Frees the results returned by @ref of_resolve_host.
 *
 * @param results The results returned by @ref of_resolve_host
 */
extern void of_resolver_free(
    of_resolver_result_t *OF_NULLABLE *OF_NONNULL results);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

struct objc_selector {
	uintptr_t uid;
	const char *types;
};

struct objc_super {
	id OBJC_UNSAFE_UNRETAINED self;
	Class cls;
};

struct objc_method {
	struct objc_selector sel;
	IMP imp;
};

#else
} Protocol;
#endif

struct objc_protocol_list {
	struct objc_protocol_list *next;
	long count;
	Protocol *OBJC_UNSAFE_UNRETAINED list[1];
};

#ifdef __cplusplus
extern "C" {
#endif
extern SEL sel_registerName(const char*);
extern const char* sel_getName(SEL);