diff options
Diffstat (limited to 'fbreader/src/formats/util/MergedStream.h')
-rw-r--r-- | fbreader/src/formats/util/MergedStream.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/fbreader/src/formats/util/MergedStream.h b/fbreader/src/formats/util/MergedStream.h new file mode 100644 index 0000000..3f982ee --- /dev/null +++ b/fbreader/src/formats/util/MergedStream.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2008-2012 Geometer Plus <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef __MERGEDSTREAM_H__ +#define __MERGEDSTREAM_H__ + +#include <shared_ptr.h> +#include <ZLInputStream.h> + +class MergedStream : public ZLInputStream { + +protected: + virtual shared_ptr<ZLInputStream> nextStream() = 0; + virtual void resetToStart() = 0; + +private: + bool open(); + std::size_t read(char *buffer, std::size_t maxSize); + void close(); + void seek(int offset, bool absoluteOffset); + std::size_t offset() const; + std::size_t sizeOfOpened(); + +private: + shared_ptr<ZLInputStream> myCurrentStream; + std::size_t myOffset; +}; + +#endif /* __MERGEDSTREAM_H__ */ |