ObjFW  Artifact [df44efa856]

Artifact df44efa856db2093e7e9361d9f1ce28cff752ddc731272cd019f4331d422d44a:

• File src/exceptions/OFSeekFailedException.h — part of check-in [48980f2297] at 2015-11-29 11:43:05 on branch trunk — Make properties a requirement and clean up code

  This increases the required GCC version from 4.0 to 4.6 (exception:
  Apple GCC, which already supports this with >= 4.0 starting with OS X
  10.5). Since even GCC 4.6 is really old by now, there is no point in
  still supporting something even older and making the code ugly because
  of that. While some hardware and OS support was dropped from GCC 4.6
  compared to GCC 4.0, there is nothing in there that would be an
  interesting target with the exception of BeOS maybe - but a port to BeOS
  can also be achieved using the Haiku support. The other dropped OSes are
  mostly old versions of OSes while newer ones are still being supported
  (and those newer versions of those OSes still support the same
  hardware). (user: js, size: 2215) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * 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 "OFException.h"
#import "OFSeekableStream.h"

/*!
 * @class OFSeekFailedException \
 *	  OFSeekFailedException.h ObjFW/OFSeekFailedException.h
 *
 * @brief An exception indicating that seeking in a stream failed.
 */
@interface OFSeekFailedException: OFException
{
	OFSeekableStream *_stream;
	of_offset_t _offset;
	int _whence, _errNo;
}

/*!
 * The stream for which seeking failed.
 */
@property (readonly, retain) OFSeekableStream *stream;

/*!
 * The offset to which seeking failed.
 */
@property (readonly) of_offset_t offset;

/*!
 * To what the offset is relative.
 */
@property (readonly) int whence;

/*!
 * The errno of the error that occurred.
 */
@property (readonly) int errNo;

/*!
 * @brief Creates a new, autoreleased seek failed exception.
 *
 * @param stream The stream for which seeking failed
 * @param offset The offset to which seeking failed
 * @param whence To what the offset is relative
 * @param errNo The errno of the error that occurred
 * @return A new, autoreleased seek failed exception
 */
+ (instancetype)exceptionWithStream: (OFSeekableStream*)stream
			     offset: (of_offset_t)offset
			     whence: (int)whence
			      errNo: (int)errNo;

/*!
 * @brief Initializes an already allocated seek failed exception.
 *
 * @param stream The stream for which seeking failed
 * @param offset The offset to which seeking failed
 * @param whence To what the offset is relative
 * @param errNo The errno of the error that occurred
 * @return An initialized seek failed exception
 */
- initWithStream: (OFSeekableStream*)stream
	  offset: (of_offset_t)offset
	  whence: (int)whence
	   errNo: (int)errNo;
@end