ObjFW  Diff

@interface OFLHAArchiveFileWriteStream: OFStream <OFReadyForWritingObserving>
{
	OFLHAArchive *_archive;
	OFMutableLHAArchiveEntry *_entry;
	OFStringEncoding _encoding;
	OFSeekableStream *_stream;
	OFStreamOffset _headerOffset;
	uint32_t _bytesWritten;
	uint64_t _bytesWritten;
	uint16_t _CRC16;
}

- (instancetype)of_initWithArchive: (OFLHAArchive *)archive
			    stream: (OFSeekableStream *)stream
			     entry: (OFLHAArchiveEntry *)entry
			  encoding: (OFStringEncoding)encoding;

}

- (size_t)lowlevelWriteBuffer: (const void *)buffer length: (size_t)length
{
	if (_stream == nil)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (UINT32_MAX - _bytesWritten < length)
	if (UINT64_MAX - _bytesWritten < length)
		@throw [OFOutOfRangeException exception];

	@try {
		[_stream writeBuffer: buffer length: length];
	} @catch (OFWriteFailedException *e) {
		OFEnsure(e.bytesWritten <= length);

		_bytesWritten += (uint32_t)e.bytesWritten;
		_bytesWritten += (uint64_t)e.bytesWritten;
		_CRC16 = OFCRC16(_CRC16, buffer, e.bytesWritten);

		if (e.errNo == EWOULDBLOCK || e.errNo == EAGAIN)
			return e.bytesWritten;

		@throw e;
	}

	_bytesWritten += (uint32_t)length;
	_bytesWritten += (uint64_t)length;
	_CRC16 = OFCRC16(_CRC16, buffer, length);

	return length;
}

- (bool)lowlevelIsAtEndOfStream
{