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posix-fs.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef POSIX_FILESYSTEM_H
00024 #define POSIX_FILESYSTEM_H
00025 
00026 #include "backends/fs/abstract-fs.h"
00027 
00028 #ifdef MACOSX
00029 #include <sys/types.h>
00030 #endif
00031 #include <unistd.h>
00032 
00038 class POSIXFilesystemNode : public AbstractFSNode {
00039 protected:
00040     Common::String _displayName;
00041     Common::String _path;
00042     bool _isDirectory;
00043     bool _isValid;
00044 
00045     virtual AbstractFSNode *makeNode(const Common::String &path) const {
00046         return new POSIXFilesystemNode(path);
00047     }
00048 
00052     POSIXFilesystemNode() : _isDirectory(false), _isValid(false) {}
00053 
00054 public:
00060     POSIXFilesystemNode(const Common::String &path);
00061 
00062     virtual bool exists() const { return access(_path.c_str(), F_OK) == 0; }
00063     virtual Common::String getDisplayName() const { return _displayName; }
00064     virtual Common::String getName() const { return _displayName; }
00065     virtual Common::String getPath() const { return _path; }
00066     virtual bool isDirectory() const { return _isDirectory; }
00067     virtual bool isReadable() const { return access(_path.c_str(), R_OK) == 0; }
00068     virtual bool isWritable() const { return access(_path.c_str(), W_OK) == 0; }
00069 
00070     virtual AbstractFSNode *getChild(const Common::String &n) const;
00071     virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
00072     virtual AbstractFSNode *getParent() const;
00073 
00074     virtual Common::SeekableReadStream *createReadStream();
00075     virtual Common::WriteStream *createWriteStream();
00076     virtual bool create(bool isDirectoryFlag);
00077 
00078 private:
00082     virtual void setFlags();
00083 };
00084 
00085 namespace Posix {
00086 
00095 bool assureDirectoryExists(const Common::String &dir, const char *prefix = nullptr);
00096 
00097 } // End of namespace Posix
00098 
00099 #endif


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