ObjFW  Artifact [eae71b417b]

Artifact eae71b417bdc431370374f26bb8a43a78946af5376f505319dae33c86a02015b:

• File src/exceptions/OFBindFailedException.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: 1724) [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 "OFBindFailedException.h"
#import "OFString.h"

@implementation OFBindFailedException
+ (instancetype)exceptionWithHost: (OFString*)host
			     port: (uint16_t)port
			   socket: (id)socket
			    errNo: (int)errNo
{
	return [[[self alloc] initWithHost: host
				      port: port
				    socket: socket
				     errNo: errNo] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithHost: (OFString*)host
	  port: (uint16_t)port
	socket: (id)socket
	 errNo: (int)errNo
{
	self = [super init];

	@try {
		_host = [host copy];
		_port = port;
		_socket = [socket retain];
		_errNo = errNo;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_host release];
	[_socket release];

	[super dealloc];
}

- (OFString*)description
{
	return [OFString stringWithFormat:
	    @"Binding to port %" @PRIu16 @" on host %@ failed in socket of "
	    @"type %@: %@",
	    _port, _host, [_socket class], of_strerror(_errNo)];
}

- (OFString*)host
{
	OF_GETTER(_host, true)
}

- (uint16_t)port
{
	return _port;
}

- (id)socket
{
	OF_GETTER(_socket, true)
}

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