Artifact 63e6e7e007316d12777f5e16f71b01a702f66c8a188df0f9b8281f31f3dfd4ab:
- File
src/exceptions/OFWriteFailedException.h
— part of check-in
[2ae01218ef]
at
2017-06-12 22:29:41
on branch trunk
— OFWriteFailedException: Add -[bytesWritten]
This allows retrieving the number of bytes already written before the
write failed, allowing to retry without writing data that has already
been written. (user: js, size: 2637) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 * Jonathan Schleifer <js@heap.zone> * * 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 "OFReadOrWriteFailedException.h" OF_ASSUME_NONNULL_BEGIN /*! * @class OFWriteFailedException \ * OFWriteFailedException.h ObjFW/OFWriteFailedException.h * * @brief An exception indicating that writing to an object failed. */ @interface OFWriteFailedException: OFReadOrWriteFailedException { size_t _bytesWritten; } /*! * The number of bytes already written before the write failed. * * This can be used to make sure that a retry does not write data already * written before. */ @property (readonly, nonatomic) size_t bytesWritten; + (instancetype)exceptionWithObject: (id)object requestedLength: (size_t)requestedLength errNo: (int)errNo OF_UNAVAILABLE; /*! * @brief Creates a new, autoreleased write failed exception. * * @param object The object from which reading or to which writing failed * @param requestedLength The requested length of the data that could not be * read / written * @param bytesWritten The amount of bytes already written before the write * failed * @param errNo The errno of the error that occurred * @return A new, autoreleased write failed exception */ + (instancetype)exceptionWithObject: (id)object requestedLength: (size_t)requestedLength bytesWritten: (size_t)bytesWritten errNo: (int)errNo; - initWithObject: (id)object requestedLength: (size_t)requestedLength errNo: (int)errNo OF_UNAVAILABLE; /*! * @brief Initializes an already allocated write failed exception. * * @param object The object from which reading or to which writing failed * @param requestedLength The requested length of the data that could not be * read / written * @param bytesWritten The amount of bytes already written before the write * failed * @param errNo The errno of the error that occurred * @return A new open file failed exception */ - initWithObject: (id)object requestedLength: (size_t)requestedLength bytesWritten: (size_t)bytesWritten errNo: (int)errNo OF_DESIGNATED_INITIALIZER; @end OF_ASSUME_NONNULL_END