ObjFW  Artifact [a0545e5899]

Artifact a0545e58991585d92c7a8d15015891d399ad0d3360587d1adfb2194df1542774:

• File src/exceptions/OFLinkFailedException.m — 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: 1761) [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 "config.h"

#import "OFLinkFailedException.h"
#import "OFString.h"

#ifdef OF_HAVE_LINK
@implementation OFLinkFailedException
+ (instancetype)exceptionWithSourcePath: (OFString*)sourcePath
			destinationPath: (OFString*)destinationPath
				  errNo: (int)errNo
{
	return [[[self alloc] initWithSourcePath: sourcePath
				 destinationPath: destinationPath
					   errNo: errNo] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithSourcePath: (OFString*)sourcePath
     destinationPath: (OFString*)destinationPath
	       errNo: (int)errNo
{
	self = [super init];

	@try {
		_sourcePath = [sourcePath copy];
		_destinationPath = [destinationPath copy];
		_errNo = errNo;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_sourcePath release];
	[_destinationPath release];

	[super dealloc];
}

- (OFString*)description
{
	return [OFString stringWithFormat:
	    @"Failed to link file %@ to %@: %@",
	    _sourcePath, _destinationPath, of_strerror(_errNo)];
}

- (OFString*)sourcePath
{
	OF_GETTER(_sourcePath, true)
}

- (OFString*)destinationPath
{
	OF_GETTER(_destinationPath, true)
}

- (int)errNo
{
	return _errNo;
}
@end
#endif