Differences From Artifact [c22a9c9657]:
- File src/OFFile.m — part of check-in [3cba61d694] at 2017-06-03 16:58:46 on branch trunk — Make sockets work on MorphOS + libnix (user: js, size: 10382) [annotate] [blame] [check-ins using]
To Artifact [1d857a1710]:
- File
src/OFFile.m
— part of check-in
[29403cc56a]
at
2017-06-04 17:39:30
on branch trunk
— OFFile: Better abstraction of file handle
As a nice side effect, this adds a designated initializer to OFFile. (user: js, size: 10096) [annotate] [blame] [check-ins using]
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return -1;
}
#else
static int
parseMode(const char *mode, bool *append)
{
if (strcmp(mode, "r") == 0)
return MODE_OLDFILE;
if (strcmp(mode, "w") == 0)
return MODE_NEWFILE;
if (strcmp(mode, "wx") == 0)
return MODE_NEWFILE;
if (strcmp(mode, "a") == 0) {
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return -1;
}
#else
static int
parseMode(const char *mode, bool *append)
{
*append = false;
if (strcmp(mode, "r") == 0)
return MODE_OLDFILE;
if (strcmp(mode, "w") == 0)
return MODE_NEWFILE;
if (strcmp(mode, "wx") == 0)
return MODE_NEWFILE;
if (strcmp(mode, "a") == 0) {
|
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+ (instancetype)fileWithPath: (OFString *)path
mode: (OFString *)mode
{
return [[[self alloc] initWithPath: path
mode: mode] autorelease];
}
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+ (instancetype)fileWithPath: (OFString *)path
mode: (OFString *)mode
{
return [[[self alloc] initWithPath: path
mode: mode] autorelease];
}
+ (instancetype)fileWithHandle: (of_file_handle_t)handle
{
return [[[self alloc] initWithHandle: handle] autorelease];
}
- init
{
OF_INVALID_INIT_METHOD
}
- initWithPath: (OFString *)path
mode: (OFString *)mode
{
of_file_handle_t handle;
@try {
void *pool = objc_autoreleasePoolPush();
int flags;
#if !defined(OF_MORPHOS) || defined(OF_IXEMUL)
if ((flags = parseMode([mode UTF8String])) == -1)
@throw [OFInvalidArgumentException exception];
flags |= O_CLOEXEC;
# if defined(OF_WINDOWS)
if ((handle = _wopen([path UTF16String], flags,
_S_IREAD | _S_IWRITE)) == -1)
# elif defined(OF_HAVE_OFF64_T)
if ((handle = open64([path cStringWithEncoding:
[OFLocalization encoding]], flags, 0666)) == -1)
# else
if ((handle = open([path cStringWithEncoding:
[OFLocalization encoding]], flags, 0666)) == -1)
# endif
@throw [OFOpenItemFailedException
exceptionWithPath: path
mode: mode
errNo: errno];
#else
if ((flags = parseMode([mode UTF8String],
&handle.append)) == -1)
@throw [OFInvalidArgumentException exception];
if ((handle.handle = Open([path cStringWithEncoding:
[OFLocalization encoding]], flags)) == 0)
@throw [OFOpenItemFailedException
exceptionWithPath: path
mode: mode];
if (handle.append) {
if (Seek64(handle.handle, 0, OFFSET_END) == -1) {
Close(handle.handle);
@throw [OFOpenItemFailedException
exceptionWithPath: path
mode: mode];
}
}
#endif
objc_autoreleasePoolPop(pool);
} @catch (id e) {
[self release];
@throw e;
}
@try {
self = [self initWithHandle: handle];
} @catch (id e) {
#if !defined(OF_MORPHOS) || defined(OF_IXEMUL)
close(handle);
#else
Close(handle.handle);
#endif
@throw e;
}
return self;
}
- initWithHandle: (of_file_handle_t)handle
{
self = [super init];
_handle = handle;
return self;
}
- (bool)lowlevelIsAtEndOfStream
{
if (!OF_FILE_HANDLE_IS_VALID(_handle))
return true;
return _atEndOfStream;
}
- (size_t)lowlevelReadIntoBuffer: (void *)buffer
length: (size_t)length
{
ssize_t ret;
if (!OF_FILE_HANDLE_IS_VALID(_handle) || _atEndOfStream)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: length];
#if defined(OF_WINDOWS)
if (length > UINT_MAX)
@throw [OFOutOfRangeException exception];
if ((ret = read(_handle, buffer, (unsigned int)length)) < 0)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: length
errNo: errno];
#elif defined(OF_MORPHOS) && !defined(OF_IXEMUL)
if (length > LONG_MAX)
@throw [OFOutOfRangeException exception];
if ((ret = Read(_handle.handle, buffer, length)) < 0)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: length];
#else
if ((ret = read(_handle, buffer, 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 (!OF_FILE_HANDLE_IS_VALID(_handle) || _atEndOfStream)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length];
#if defined(OF_WINDOWS)
if (length > INT_MAX)
@throw [OFOutOfRangeException exception];
if (write(_handle, buffer, (int)length) != (int)length)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length
errNo: errno];
#elif defined(OF_MORPHOS) && !defined(OF_IXEMUL)
if (length > LONG_MAX)
@throw [OFOutOfRangeException exception];
if (_handle.append) {
if (Seek64(_handle.handle, 0, OFFSET_END) == -1)
@throw [OFWriteFailedException
exceptionWithObject: self
requestedLength: length];
}
if (Write(_handle.handle, (void *)buffer, length) != (LONG)length)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length];
#else
if (length > SSIZE_MAX)
@throw [OFOutOfRangeException exception];
if (write(_handle, buffer, length) != (ssize_t)length)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length
errNo: errno];
#endif
}
- (of_offset_t)lowlevelSeekToOffset: (of_offset_t)offset
whence: (int)whence
{
of_offset_t ret;
if (!OF_FILE_HANDLE_IS_VALID(_handle))
@throw [OFSeekFailedException exceptionWithStream: self
offset: offset
whence: whence];
#if !defined(OF_MORPHOS) || defined(OF_IXEMUL)
# if defined(OF_WINDOWS)
ret = _lseeki64(_handle, offset, whence);
# elif defined(OF_HAVE_OFF64_T)
ret = lseek64(_handle, offset, whence);
# else
ret = lseek(_handle, offset, whence);
# endif
if (ret == -1)
@throw [OFSeekFailedException exceptionWithStream: self
offset: offset
whence: whence
errNo: errno];
#else
switch (whence) {
case SEEK_SET:
ret = Seek64(_handle.handle, offset, OFFSET_BEGINNING);
break;
case SEEK_CUR:
ret = Seek64(_handle.handle, offset, OFFSET_CURRENT);
break;
case SEEK_END:
ret = Seek64(_handle.handle, offset, OFFSET_END);
break;
default:
ret = -1;
break;
}
if (ret == -1)
@throw [OFSeekFailedException exceptionWithStream: self
offset: offset
whence: whence];
#endif
_atEndOfStream = false;
return ret;
}
#ifdef OF_FILE_HANDLE_IS_FD
- (int)fileDescriptorForReading
{
return _handle;
}
- (int)fileDescriptorForWriting
{
return _handle;
}
#endif
- (void)close
{
if (OF_FILE_HANDLE_IS_VALID(_handle))
#if !defined(OF_MORPHOS) || defined(OF_IXEMUL)
close(_handle);
#else
Close(_handle.handle);
#endif
_handle = OF_INVALID_FILE_HANDLE;
[super close];
}
- (void)dealloc
{
[self close];
[super dealloc];
}
@end
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