ObjFW  Diff

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFWriteFailedException.h"

@interface OFTarArchive_FileReadStream: OFStream
@interface OFTarArchive_FileReadStream: OFStream <OFReadyForReadingObserving>
{
	OFTarArchiveEntry *_entry;
	OF_KINDOF(OFStream *) _stream;
	uint64_t _toRead;
	bool _atEndOfStream;
}

- (instancetype)initWithStream: (OFStream *)stream
			 entry: (OFTarArchiveEntry *)entry;
- (void)of_skip;
@end

@interface OFTarArchive_FileWriteStream: OFStream
@interface OFTarArchive_FileWriteStream: OFStream <OFReadyForWritingObserving>
{
	OFTarArchiveEntry *_entry;
	OFStream *_stream;
	OF_KINDOF(OFStream *) _stream;
	uint64_t _toWrite;
}

- (instancetype)initWithStream: (OFStream *)stream
			 entry: (OFTarArchiveEntry *)entry;
@end

	_lastReturnedStream = [[OFTarArchive_FileReadStream alloc]
	    initWithStream: _stream
		     entry: entry];

	return entry;
}

- (OFStream *)streamForReadingCurrentEntry
- (OFStream <OFReadyForReadingObserving> *)streamForReadingCurrentEntry
{
	if (_mode != OF_TAR_ARCHIVE_MODE_READ)
		@throw [OFInvalidArgumentException exception];

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

	return [[_lastReturnedStream retain] autorelease];
}

- (OFStream <OFReadyForWritingObserving> *)
- (OFStream *)streamForWritingEntry: (OFTarArchiveEntry *)entry
    streamForWritingEntry: (OFTarArchiveEntry *)entry
{
	void *pool;

	if (_mode != OF_TAR_ARCHIVE_MODE_WRITE &&
	    _mode != OF_TAR_ARCHIVE_MODE_APPEND)
		@throw [OFInvalidArgumentException exception];