ObjFW  Diff

- (void)readIntoBuffer: (void *)buffer
	   exactLength: (size_t)length
{
	size_t readLength = 0;

	while (readLength < length) {
		if (self.atEndOfStream)
			@throw [OFTruncatedDataException exception];

		readLength += [self readIntoBuffer: (char *)buffer + readLength
					    length: length - readLength];
	}
}

- (OFData *)readDataUntilEndOfStream
{
	OFMutableData *data = [OFMutableData data];
	size_t pageSize = [OFSystemInfo pageSize];
	char *buffer = [self allocMemoryWithSize: pageSize];

	@try {
		while (!self.atEndOfStream) {
			size_t length;

			length = [self readIntoBuffer: buffer
					       length: pageSize];
			[data addItems: buffer
				 count: length];
		}

}

- (OFString *)readLineWithEncoding: (of_string_encoding_t)encoding
{
	OFString *line = nil;

	while ((line = [self tryReadLineWithEncoding: encoding]) == nil)
		if (self.atEndOfStream)
			return nil;

	return line;
}

#ifdef OF_HAVE_SOCKETS
- (void)asyncReadLine

}

- (OFString *)readTillDelimiter: (OFString *)delimiter
		       encoding: (of_string_encoding_t)encoding
{
	OFString *ret = nil;


	while ((ret = [self tryReadTillDelimiter: delimiter
					encoding: encoding]) == nil)
		if (self.atEndOfStream)
			return nil;

	return ret;
}

- (OFString *)tryReadTillDelimiter: (OFString *)delimiter
{

	void *pool;
	size_t length;

	if (data == nil)
		@throw [OFInvalidArgumentException exception];

	pool = objc_autoreleasePoolPush();
	length = data.count * data.itemSize;

	[self writeBuffer: data.items
		   length: length];

	objc_autoreleasePoolPop(pool);

	return length;
}

{
	char *UTF8String;
	int length;

	if (format == nil)
		@throw [OFInvalidArgumentException exception];

	if ((length = of_vasprintf(&UTF8String, format.UTF8String,
	    arguments)) == -1)
		@throw [OFInvalidFormatException exception];

	@try {
		[self writeBuffer: UTF8String
			   length: length];
	} @finally {

{
#if defined(HAVE_FCNTL)
	bool readImplemented = false, writeImplemented = false;

	@try {
		int readFlags;

		readFlags = fcntl(((id <OFReadyForReadingObserving>)self)
		    .fileDescriptorForReading, F_GETFL, 0);

		readImplemented = true;

		if (readFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithObject: self
					  errNo: errno];

		if (enable)
			readFlags &= ~O_NONBLOCK;
		else
			readFlags |= O_NONBLOCK;

		if (fcntl(((id <OFReadyForReadingObserving>)self)
		    .fileDescriptorForReading, F_SETFL, readFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithObject: self
					  errNo: errno];
	} @catch (OFNotImplementedException *e) {
	}

	@try {
		int writeFlags;

		writeFlags = fcntl(((id <OFReadyForWritingObserving>)self)
		    .fileDescriptorForWriting, F_GETFL, 0);

		writeImplemented = true;

		if (writeFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithObject: self
					  errNo: errno];

		if (enable)
			writeFlags &= ~O_NONBLOCK;
		else
			writeFlags |= O_NONBLOCK;

		if (fcntl(((id <OFReadyForWritingObserving>)self)
		    .fileDescriptorForWriting, F_SETFL, writeFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithObject: self
					  errNo: errno];
	} @catch (OFNotImplementedException *e) {
	}

	if (!readImplemented && !writeImplemented)