ObjFW  Artifact [195f94c4ef]

Artifact 195f94c4efdccaafe074fe0aa005cec9866b90a7a75a40477ee0d005507ed910:

• File src/exceptions/OFOpenFileFailedException.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: 2055) [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 "OFOpenFileFailedException.h"
#import "OFString.h"

@implementation OFOpenFileFailedException
+ (instancetype)exceptionWithPath: (OFString*)path
			     mode: (OFString*)mode
{
	return [[[self alloc] initWithPath: path
				      mode: mode] autorelease];
}

+ (instancetype)exceptionWithPath: (OFString*)path
			     mode: (OFString*)mode
			    errNo: (int)errNo
{
	return [[[self alloc] initWithPath: path
				      mode: mode
				     errNo: errNo] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithPath: (OFString*)path
	  mode: (OFString*)mode
{
	self = [super init];

	@try {
		_path  = [path copy];
		_mode  = [mode copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithPath: (OFString*)path
	  mode: (OFString*)mode
	 errNo: (int)errNo
{
	self = [super init];

	@try {
		_path  = [path copy];
		_mode  = [mode copy];
		_errNo = errNo;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_path release];
	[_mode release];

	[super dealloc];
}

- (OFString*)description
{
	if (_errNo != 0)
		return [OFString stringWithFormat:
		    @"Failed to open file %@ with mode %@: %@",
		    _path, _mode, of_strerror(_errNo)];
	else
		return [OFString stringWithFormat:
		    @"Failed to open file %@ with mode %@!",
		    _path, _mode];
}

- (OFString*)path
{
	OF_GETTER(_path, true)
}

- (OFString*)mode
{
	OF_GETTER(_mode, true)
}

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