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Diffstat (limited to 'nxcomp/src/BlockCache.h')
| -rw-r--r-- | nxcomp/src/BlockCache.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/nxcomp/src/BlockCache.h b/nxcomp/src/BlockCache.h new file mode 100644 index 000000000..48e586966 --- /dev/null +++ b/nxcomp/src/BlockCache.h @@ -0,0 +1,67 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifndef BlockCache_H +#define BlockCache_H + + +// Cache to hold an arbitrary-length block of bytes + +class BlockCache +{ + public: + BlockCache():buffer_(0), size_(0), checksum_(0) + { + } + ~BlockCache() + { + delete[]buffer_; + } + int compare(unsigned int size, const unsigned char *data, + int overwrite = 1); + void set(unsigned int size, const unsigned char *data); + + unsigned int getLength() const + { + return size_; + } + unsigned int getChecksum() const + { + return checksum_; + } + const unsigned char *getData() const + { + return buffer_; + } + + static unsigned int checksum(unsigned int size, const unsigned char *data); + +private: + unsigned char *buffer_; + unsigned int size_; + unsigned int checksum_; +}; + +#endif /* BlockCache_H */ |