ObjFW  Artifact [ceef029863]

Artifact ceef02986381633ce466a05867bca18e53592810286bfb259a898c6acc69c86e:

• File src/exceptions/OFChangeCurrentDirectoryPathFailedException.h — part of check-in [62e2de30b9] at 2015-02-16 08:39:17 on branch trunk — Explicitly pass errno to exceptions

  The old behaviour where the exception would access errno directly on
  creation of the exception was very fragile. The two main problems with
  it were that sometimes it would pick up an errno even though none had
  been set and in other cases that when the exception was created errno
  had already been overridden.

  This also greatly increases errno handling on Win32, especially in
  conjunction with sockets. It can still be improved further, though. (user: js, size: 2192) [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"

/*!
 * @class OFChangeCurrentDirectoryPathFailedException \
 *	  OFChangeCurrentDirectoryPathFailedException.h \
 *	  ObjFW/OFChangeCurrentDirectoryPathFailedException.h
 *
 * @brief An exception indicating that changing the current directory path
 *	  failed.
 */
@interface OFChangeCurrentDirectoryPathFailedException: OFException
{
	OFString *_path;
	int _errNo;
}

#ifdef OF_HAVE_PROPERTIES
@property (readonly, copy) OFString *path;
@property (readonly) int errNo;
#endif

/*!
 * @brief Creates a new, autoreleased change current directory path failed
 *	  exception.
 *
 * @param path The path of the directory to which the current path could not be
 *	       changed
 * @param errNo The errno of the error
 * @return A new, autoreleased change current directory path failed exception
 */
+ (instancetype)exceptionWithPath: (OFString*)path
			    errNo: (int)errNo;

/*!
 * @brief Initializes an already allocated change directory failed exception.
 *
 * @param path The path of the directory to which the current path could not be
 *	       changed
 * @param errNo The errno of the error
 * @return An initialized change current directory path failed exception
 */
- initWithPath: (OFString*)path
	 errNo: (int)errNo;

/*!
 * @brief Returns the path of the directory to which the current path could not
 *	  be changed.
 *
 * @return The path of the directory to which the current path could not be
 *	   changed
 */
- (OFString*)path;

/*!
 * @brief Returns the errno from when the exception was created.
 *
 * @return The errno from when the exception was created
 */
- (int)errNo;
@end