/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* 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 "OFSeekableStream.h"
#import "OFKernelEventObserver.h"
#ifndef OF_AMIGAOS
# define OF_FILE_HANDLE_IS_FD
# define OF_INVALID_FILE_HANDLE (-1)
typedef int of_file_handle_t;
#else
# define OF_INVALID_FILE_HANDLE NULL
typedef struct of_file_handle *of_file_handle_t;
#endif
OF_ASSUME_NONNULL_BEGIN
@class OFURL;
/**
* @class OFFile OFFile.h ObjFW/OFFile.h
*
* @brief A class which provides methods to read and write files.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFFile: OFSeekableStream
#ifdef OF_FILE_HANDLE_IS_FD
<OFReadyForReadingObserving, OFReadyForWritingObserving>
#endif
{
of_file_handle_t _handle;
bool _atEndOfStream;
}
/**
* @brief Creates a new OFFile with the specified path and mode.
*
* @param path The path to the file to open as a string
* @param mode The mode in which the file should be opened.
* @n
* Possible modes are:
* Mode | Description
* ---------------|-------------------------------------
* `r` | Read-only
* `r+` | Read-write
* `w` | Write-only, create or truncate
* `wx` | Write-only, create or fail, exclusive
* `w+` | Read-write, create or truncate
* `w+x` | Read-write, create or fail, exclusive
* `a` | Write-only, create or append
* `a+` | Read-write, create or append
* @return A new autoreleased OFFile
*/
+ (instancetype)fileWithPath: (OFString *)path
mode: (OFString *)mode;
/**
* @brief Creates a new OFFile with the specified URL and mode.
*
* @param URL The URL to the file to open
* @param mode The mode in which the file should be opened.@n
* Possible modes are:
* Mode | Description
* ---------------|-------------------------------------
* `r` | Read-only
* `r+` | Read-write
* `w` | Write-only, create or truncate
* `wx` | Write-only, create or fail, exclusive
* `w+` | Read-write, create or truncate
* `w+x` | Read-write, create or fail, exclusive
* `a` | Write-only, create or append
* `a+` | Read-write, create or append
* @return A new autoreleased OFFile
*/
+ (instancetype)fileWithURL: (OFURL *)URL
mode: (OFString *)mode;
/**
* @brief Creates a new OFFile with the specified native file handle.
*
* @param handle A native file handle. If OF_FILE_HANDLE_IS_FD is defined, this
* is a file descriptor. The handle is closed when the OFFile
* object is deallocated!
* @return A new autoreleased OFFile
*/
+ (instancetype)fileWithHandle: (of_file_handle_t)handle;
- (instancetype)init OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFFile.
*
* @param path The path to the file to open as a string
* @param mode The mode in which the file should be opened.@n
* Possible modes are:
* Mode | Description
* ---------------|-------------------------------------
* `r` | read-only
* `rb` | read-only, binary
* `r+` | read-write
* `rb+` or `r+b` | read-write, binary
* `w` | write-only, create, truncate
* `wb` | write-only, create, truncate, binary
* `w` | read-write, create, truncate
* `wb+` or `w+b` | read-write, create, truncate, binary
* `a` | write-only, create, append
* `ab` | write-only, create, append, binary
* `a+` | read-write, create, append
* `ab+` or `a+b` | read-write, create, append, binary
* @return An initialized OFFile
*/
- (instancetype)initWithPath: (OFString *)path
mode: (OFString *)mode;
/**
* @brief Initializes an already allocated OFFile.
*
* @param URL The URL to the file to open
* @param mode The mode in which the file should be opened.@n
* Possible modes are:
* Mode | Description
* ---------------|-------------------------------------
* `r` | read-only
* `rb` | read-only, binary
* `r+` | read-write
* `rb+` or `r+b` | read-write, binary
* `w` | write-only, create, truncate
* `wb` | write-only, create, truncate, binary
* `w` | read-write, create, truncate
* `wb+` or `w+b` | read-write, create, truncate, binary
* `a` | write-only, create, append
* `ab` | write-only, create, append, binary
* `a+` | read-write, create, append
* `ab+` or `a+b` | read-write, create, append, binary
* @return An initialized OFFile
*/
- (instancetype)initWithURL: (OFURL *)URL
mode: (OFString *)mode;
/**
* @brief Initializes an already allocated OFFile.
*
* @param handle A native file handle. If OF_FILE_HANDLE_IS_FD is defined, this
* is a file descriptor. The handle is closed when the OFFile
* object is deallocated!
* @return An initialized OFFile
*/
- (instancetype)initWithHandle: (of_file_handle_t)handle
OF_DESIGNATED_INITIALIZER;
@end
OF_ASSUME_NONNULL_END