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author | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
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committer | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
commit | 8f27e65bddd7d4b8515ce620fb485fdd78fcdf89 (patch) | |
tree | bd328a4dd4f92d32202241b5e3a7f36177792c5f /conversion/ecwmemfs.hh | |
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Initial commitv8.0
Diffstat (limited to 'conversion/ecwmemfs.hh')
-rw-r--r-- | conversion/ecwmemfs.hh | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/conversion/ecwmemfs.hh b/conversion/ecwmemfs.hh new file mode 100644 index 0000000..f61ed10 --- /dev/null +++ b/conversion/ecwmemfs.hh @@ -0,0 +1,84 @@ +/* +* This file is part of rasdaman community. +* +* Rasdaman community 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 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ + +#ifndef _ECWMEMFS_HH_ +#define _ECWMEMFS_HH_ + +#include "raslib/mddtypes.hh" + +class MemoryFileSystem + { + public: + enum m_Error + { + No_Error = 0, + Error = 1 + }; + + MemoryFileSystem(); + + ///open file an read into memory - completely + m_Error open(const char* fileName); + + ///use this memory chunk with mSize bytes length + m_Error open(const char* memorySource, r_Bytes mSize); + + ///close and deinitialise (delete only my own data) + m_Error close(); + + ///call close + ~MemoryFileSystem(); + + ///read bSize bytes into buffer, only if bSize bytes are available + m_Error read(void* buffer, r_Bytes bSize); + + ///get current position + unsigned long long tell(); + + ///go to offset bytes from begining of memory + m_Error seek(unsigned long long offset); + + ///if you use open(const* char) and the pointer is memorySrcName then no file will be read but this pointer + static const char* memorySrc; + + ///file names which point to this will not read from file system but from memorySrc + static const char* memorySrcName; + + ///the length of the memorySrc chunk must be specified in memoryLength + static r_Bytes memorySrcLength; + + private: + + ///my memory block + char* source; + ///my current position + char* current; + ///am i closed + bool closed; + ///do i own my memory data + bool owner; + ///how long is my memory data + r_Bytes length; + }; + +#endif |