ObjFW  Artifact [8ed051874b]

Artifact 8ed051874b4c07284bb98e4a938397932696111a31b64f9d7dbfe59316f4c83f:

• File src/exceptions/OFAcceptFailedException.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: 1921) [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"

#ifndef OF_HAVE_SOCKETS
# error No sockets available!
#endif

/*!
 * @class OFAcceptFailedException \
 *	  OFAcceptFailedException.h ObjFW/OFAcceptFailedException.h
 *
 * @brief An exception indicating that accepting a connection failed.
 */
@interface OFAcceptFailedException: OFException
{
	id _socket;
	int _errNo;
}

#ifdef OF_HAVE_PROPERTIES
@property (readonly, retain) id socket;
@property (readonly) int errNo;
#endif

/*!
 * @brief Creates a new, autoreleased accept failed exception.
 *
 * @param socket The socket which could not accept a connection
 * @param errNo The errno for the error
 * @return A new, autoreleased accept failed exception
 */
+ (instancetype)exceptionWithSocket: (id)socket
			      errNo: (int)errNo;

/*!
 * @brief Initializes an already allocated accept failed exception.
 *
 * @param socket The socket which could not accept a connection
 * @param errNo The errno for the error
 * @return An initialized accept failed exception
 */
- initWithSocket: (id)socket
	   errNo: (int)errNo;

/*!
 * @brief Returns the socket which could not accept a connection.
 *
 * @return The socket which could not accept a connection
 */
- (id)socket;

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