Artifact a34749abe1f7480f03ca78803b85d02b10a2c061d39d5d4997bdef2858a7714d:
- File
src/OFFile.m
— part of check-in
[2a27cf3000]
at
2016-01-03 00:41:26
on branch trunk
— Update copyright
While at it, also update the mail address. (user: js, size: 6610) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * 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. */ #include "config.h" #include <errno.h> #include <fcntl.h> #include <unistd.h> #include "platform.h" #ifdef OF_WII # define BOOL OGC_BOOL # include <fat.h> # undef BOOL #endif #ifdef OF_NINTENDO_DS # include <stdbool.h> # include <filesystem.h> #endif #import "OFFile.h" #import "OFString.h" #import "OFSystemInfo.h" #import "OFInitializationFailedException.h" #import "OFInvalidArgumentException.h" #import "OFOpenItemFailedException.h" #import "OFOutOfRangeException.h" #import "OFReadFailedException.h" #import "OFSeekFailedException.h" #import "OFWriteFailedException.h" #ifdef OF_WINDOWS # include <windows.h> #endif #ifndef O_BINARY # define O_BINARY 0 #endif #ifndef O_CLOEXEC # define O_CLOEXEC 0 #endif #ifndef O_EXLOCK # define O_EXLOCK 0 #endif #ifndef S_IRGRP # define S_IRGRP 0 #endif #ifndef S_IROTH # define S_IROTH 0 #endif #ifndef S_IWGRP # define S_IWGRP 0 #endif #ifndef S_IWOTH # define S_IWOTH 0 #endif #define DEFAULT_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH static int parseMode(const char *mode) { if (strcmp(mode, "r") == 0) return O_RDONLY; if (strcmp(mode, "w") == 0) return O_WRONLY | O_CREAT | O_TRUNC; if (strcmp(mode, "wx") == 0) return O_WRONLY | O_CREAT | O_EXCL | O_EXLOCK; if (strcmp(mode, "a") == 0) return O_WRONLY | O_CREAT | O_APPEND; if (strcmp(mode, "rb") == 0) return O_RDONLY | O_BINARY; if (strcmp(mode, "wb") == 0) return O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; if (strcmp(mode, "wbx") == 0) return O_WRONLY | O_CREAT | O_EXCL | O_EXLOCK; if (strcmp(mode, "ab") == 0) return O_WRONLY | O_CREAT | O_APPEND | O_BINARY; if (strcmp(mode, "r+") == 0) return O_RDWR; if (strcmp(mode, "w+") == 0) return O_RDWR | O_CREAT | O_TRUNC; if (strcmp(mode, "a+") == 0) return O_RDWR | O_CREAT | O_APPEND; if (strcmp(mode, "r+b") == 0 || strcmp(mode, "rb+") == 0) return O_RDWR | O_BINARY; if (strcmp(mode, "w+b") == 0 || strcmp(mode, "wb+") == 0) return O_RDWR | O_CREAT | O_TRUNC | O_BINARY; if (strcmp(mode, "w+bx") == 0 || strcmp(mode, "wb+x") == 0) return O_RDWR | O_CREAT | O_EXCL | O_EXLOCK; if (strcmp(mode, "ab+") == 0 || strcmp(mode, "a+b") == 0) return O_RDWR | O_CREAT | O_APPEND | O_BINARY; return -1; } @implementation OFFile + (void)initialize { if (self != [OFFile class]) return; #ifdef OF_WII if (!fatInitDefault()) @throw [OFInitializationFailedException exceptionWithClass: self]; #endif #ifdef OF_NINTENDO_DS if (!nitroFSInit(NULL)) @throw [OFInitializationFailedException exceptionWithClass: self]; #endif } + (instancetype)fileWithPath: (OFString*)path mode: (OFString*)mode { return [[[self alloc] initWithPath: path mode: mode] autorelease]; } + (instancetype)fileWithFileDescriptor: (int)filedescriptor { return [[[self alloc] initWithFileDescriptor: filedescriptor] autorelease]; } - init { OF_INVALID_INIT_METHOD } - initWithPath: (OFString*)path mode: (OFString*)mode { self = [super init]; @try { int flags; if ((flags = parseMode([mode UTF8String])) == -1) @throw [OFInvalidArgumentException exception]; flags |= O_CLOEXEC; #if defined(OF_WINDOWS) if ((_fd = _wopen([path UTF16String], flags, DEFAULT_MODE)) == -1) #elif defined(OF_HAVE_OFF64_T) if ((_fd = open64([path cStringWithEncoding: [OFSystemInfo native8BitEncoding]], flags, DEFAULT_MODE)) == -1) #else if ((_fd = open([path cStringWithEncoding: [OFSystemInfo native8BitEncoding]], flags, DEFAULT_MODE)) == -1) #endif @throw [OFOpenItemFailedException exceptionWithPath: path mode: mode errNo: errno]; } @catch (id e) { [self release]; @throw e; } return self; } - initWithFileDescriptor: (int)fd { self = [super init]; _fd = fd; return self; } - (bool)lowlevelIsAtEndOfStream { if (_fd == -1) return true; return _atEndOfStream; } - (size_t)lowlevelReadIntoBuffer: (void*)buffer length: (size_t)length { ssize_t ret; if (_fd == -1 || _atEndOfStream) @throw [OFReadFailedException exceptionWithObject: self requestedLength: length]; #ifndef OF_WINDOWS if ((ret = read(_fd, buffer, length)) < 0) @throw [OFReadFailedException exceptionWithObject: self requestedLength: length errNo: errno]; #else if (length > UINT_MAX) @throw [OFOutOfRangeException exception]; if ((ret = read(_fd, buffer, (unsigned int)length)) < 0) @throw [OFReadFailedException exceptionWithObject: self requestedLength: length errNo: errno]; #endif if (ret == 0) _atEndOfStream = true; return ret; } - (void)lowlevelWriteBuffer: (const void*)buffer length: (size_t)length { if (_fd == -1 || _atEndOfStream) @throw [OFWriteFailedException exceptionWithObject: self requestedLength: length]; #ifndef OF_WINDOWS if (length > SSIZE_MAX) @throw [OFOutOfRangeException exception]; if (write(_fd, buffer, length) != (ssize_t)length) @throw [OFWriteFailedException exceptionWithObject: self requestedLength: length errNo: errno]; #else if (length > INT_MAX) @throw [OFOutOfRangeException exception]; if (write(_fd, buffer, (int)length) != (int)length) @throw [OFWriteFailedException exceptionWithObject: self requestedLength: length errNo: errno]; #endif } - (of_offset_t)lowlevelSeekToOffset: (of_offset_t)offset whence: (int)whence { #if defined(OF_WINDOWS) of_offset_t ret = _lseeki64(_fd, offset, whence); #elif defined(OF_HAVE_OFF64_T) of_offset_t ret = lseek64(_fd, offset, whence); #else of_offset_t ret = lseek(_fd, offset, whence); #endif if (ret == -1) @throw [OFSeekFailedException exceptionWithStream: self offset: offset whence: whence errNo: errno]; _atEndOfStream = false; return ret; } - (int)fileDescriptorForReading { return _fd; } - (int)fileDescriptorForWriting { return _fd; } - (void)close { if (_fd != -1) close(_fd); _fd = -1; } - (void)dealloc { if (_fd != -1) close(_fd); [super dealloc]; } @end