ObjFW  Artifact [822684a5ba]

Artifact 822684a5ba01fafc139994c31d589cb988ab1e53a6d1df1bca62d694ff478c74:

• File src/exceptions/OFChangePermissionsFailedException.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: 2286) [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.
 */

#include <sys/types.h>

#import "OFException.h"

/*!
 * @class OFChangePermissionsFailedException \
 *	  OFChangePermissionsFailedException.h \
 *	  ObjFW/OFChangePermissionsFailedException.h
 *
 * @brief An exception indicating that changing the permissions of an item
 *	  failed.
 */
@interface OFChangePermissionsFailedException: OFException
{
	OFString *_path;
	mode_t _permissions;
	int _errNo;
}

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

/*!
 * @brief Creates a new, autoreleased change permissions failed exception.
 *
 * @param path The path of the item
 * @param permissions The new permissions for the item
 * @param errNo The errno of the error
 * @return A new, autoreleased change permissions failed exception
 */
+ (instancetype)exceptionWithPath: (OFString*)path
		      permissions: (mode_t)permissions
			    errNo: (int)errNo;

/*!
 * @brief Initializes an already allocated change permissions failed exception.
 *
 * @param path The path of the item
 * @param permissions The new permissions for the item
 * @param errNo The errno of the error
 * @return An initialized change permissions failed exception
 */
- initWithPath: (OFString*)path
   permissions: (mode_t)permissions
	 errNo: (int)errNo;

/*!
 * @brief Returns the path of the item.
 *
 * @return The path of the item
 */
- (OFString*)path;

/*!
 * @brief Returns the new permissions for the item.
 *
 * @return The new permissions for the item
 */
- (mode_t)permissions;

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