mirror of
https://github.com/scummvm/scummvm.git
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141 lines
3.8 KiB
C++
141 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef LIBRETRO_FILESYSTEM_H
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#define LIBRETRO_FILESYSTEM_H
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#include "backends/fs/abstract-fs.h"
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#ifdef MACOSX
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#include <sys/types.h>
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#endif
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#include <unistd.h>
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#ifdef PLAYSTATION3
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#define FORBIDDEN_SYMBOL_ALLOW_ALL
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#define F_OK 0 /* test for existence of file */
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#define W_OK 0x02 /* test for write permission */
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#define R_OK 0x04 /* test for read permission */
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#ifndef S_ISDIR
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#define S_ISDIR(x) (x & 0040000)
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#endif
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static inline int access(const char *pn, int mode) {
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warning("access: pn %s\n", pn);
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int fd = open(pn, O_RDONLY);
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if (fd < 0)
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return -1;
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// XXX lie about it, for now..
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close(fd);
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return 0;
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}
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static inline char *getenv(const char *name) {
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return 0;
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}
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#endif
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/**
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* Implementation of the ScummVM file system API based on LibRetro.
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*
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* Parts of this class are documented in the base interface class, AbstractFSNode.
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*/
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class LibRetroFilesystemNode : public AbstractFSNode {
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protected:
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Common::String _displayName;
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Common::String _path;
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bool _isDirectory;
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bool _isValid;
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virtual AbstractFSNode *makeNode(const Common::String &path) const {
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return new LibRetroFilesystemNode(path);
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}
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/**
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* Plain constructor, for internal use only (hence protected).
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*/
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LibRetroFilesystemNode() : _isDirectory(false), _isValid(false) {}
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public:
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/**
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* Creates a LibRetroFilesystemNode for a given path.
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*
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* @param path the path the new node should point to.
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*/
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LibRetroFilesystemNode(const Common::String &path);
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virtual bool exists() const {
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return access(_path.c_str(), F_OK) == 0;
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}
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virtual Common::U32String getDisplayName() const {
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return _displayName;
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}
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virtual Common::String getName() const {
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return _displayName;
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}
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virtual Common::String getPath() const {
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return _path;
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}
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virtual bool isDirectory() const {
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return _isDirectory;
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}
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virtual bool isReadable() const {
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return access(_path.c_str(), R_OK) == 0;
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}
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virtual bool isWritable() const {
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return access(_path.c_str(), W_OK) == 0;
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}
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virtual AbstractFSNode *getChild(const Common::String &n) const;
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virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
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virtual AbstractFSNode *getParent() const;
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virtual Common::SeekableReadStream *createReadStream();
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virtual Common::SeekableWriteStream *createWriteStream();
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virtual bool createDirectory();
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private:
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/**
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* Tests and sets the _isValid and _isDirectory flags, using the stat() function.
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*/
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virtual void setFlags();
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};
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#ifndef __ANDROID__ //In this case definition in backends/fs/posix/posix-fs.h is used
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namespace Posix {
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/**
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* Assure that a directory path exists.
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*
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* @param dir The path which is required to exist.
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* @param prefix An (optional) prefix which should not be created if non existent.
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* prefix is prepended to dir if supplied.
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* @return true in case the directoy exists (or was created), false otherwise.
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*/
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bool assureDirectoryExists(const Common::String &dir, const char *prefix = nullptr);
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} // End of namespace Posix
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#endif
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#endif
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