ObjFW  Diff

 *	  port pair.
 *
 * @param host The host to resolve
 * @param port The port for the resulting address
 * @param address A pointer to the address that should be filled with the
 *		  host / port pair
 */
+ (void)resolveAddressForHost: (OFString *)host
			 port: (uint16_t)port
		      address: (of_udp_socket_address_t *)address;

#ifdef OF_HAVE_THREADS
/*!
 * @brief Asynchronously resolves the specified host and creates an address for
 *	  the host / port pair.
 *
 * @param host The host to resolve
 * @param port The port for the resulting address
 * @param target The target on which to call the selector once the host has been
 *		 resolved
 * @param selector The selector to call on the target. The signature must be
 *		   `void (OFString *host, uint16_t port,
 *		   of_udp_socket_address_t address, OFException *exception)`.
 */
+ (void)asyncResolveAddressForHost: (OFString *)host
			      port: (uint16_t)port
			    target: (id)target
			  selector: (SEL)selector;

# ifdef OF_HAVE_BLOCKS
/*!
 * @brief Asynchronously resolves the specified host and creates an address for
 *	  the host / port pair.
 *
 * @param host The host to resolve
 * @param port The port for the resulting address
 * @param block The block to execute once the host has been resolved
 */
+ (void)asyncResolveAddressForHost: (OFString *)host
			      port: (uint16_t)port
			     block: (of_udp_socket_async_resolve_block_t)block;
# endif
#endif

/*!
 * @brief Gets the host and port for the specified address.
 *
 * @param host A pointer to an @ref 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 _Nonnull *_Nullable)host
	andPort: (uint16_t *_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.
 * @param port The port to bind to. If the port is 0, an unused port will be
 *	       chosen, which can be obtained using the return value.
 * @return The port the socket was bound to
 */
- (uint16_t)bindToHost: (OFString *)host
		  port: (uint16_t)port;

/*!
 * @brief Receives a datagram and stores it into the specified buffer.
 *
 * If the buffer is too small, the datagram is truncated.
 *
 * @param buffer The buffer to write the datagram to
 * @param length The length of the buffer
 * @param sender A pointer to an @ref of_udp_socket_address_t, which will be
 *		 set to the address of the sender
 * @return The length of the received datagram
 */
- (size_t)receiveIntoBuffer: (void *)buffer
		     length: (size_t)length
		     sender: (of_udp_socket_address_t *)sender;

/*!
 * @brief Asynchronously receives a datagram and stores it into the specified
 *	  buffer.
 *
 * If the buffer is too small, the datagram is truncated.
 *
 * @param buffer The buffer to write the datagram to
 * @param length The length of the buffer
 * @param target The target on which the selector should be called when the
 *		 datagram has been received. If the method returns true, it
 *		 will be called again with the same buffer and maximum length
 *		 when more datagrams have been received. If you want the next
 *		 method in the queue to handle the datagram received next, you
 *		 need to return false from the method.
 * @param selector The selector to call on the target. The signature must be
 *		   `bool (OFUDPSocket *socket, void *buffer, size_t length,
 *		   of_udp_socket_address_t, OFException *exception)`.
 */
- (void)asyncReceiveIntoBuffer: (void *)buffer
			length: (size_t)length
			target: (id)target
		      selector: (SEL)selector;

#ifdef OF_HAVE_BLOCKS
/*!
 * @brief Asynchronously receives a datagram and stores it into the specified
 *	  buffer.
 *
 * If the buffer is too small, the datagram is truncated.
 *
 * @param buffer The buffer to write the datagram to
 * @param length The length of the buffer
 * @param block The block to call when the datagram has been received. If the
 *		block returns true, it will be called again with the same
 *		buffer and maximum length when more datagrams have been
 *		received. If you want the next method in the queue to handle
 *		the datagram received next, you need to return false from the
 *		method.
 */
- (void)asyncReceiveIntoBuffer: (void *)buffer
			length: (size_t)length
			 block: (of_udp_socket_async_receive_block_t)block;
#endif

/*!
 * @brief Sends the specified datagram to the specified address.
 *
 * @param buffer The buffer to send as a datagram
 * @param length The length of the buffer
 * @param receiver A pointer to an @ref of_udp_socket_address_t to which the
 *		   datagram should be sent
 */
- (void)sendBuffer: (const void *)buffer
	    length: (size_t)length
	  receiver: (const of_udp_socket_address_t *)receiver;

/*!
 * @brief Cancels all pending asynchronous requests on the socket.
 */
- (void)cancelAsyncRequests;

/*!