mirror of
https://github.com/libretro/scummvm.git
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86 lines
2.7 KiB
C++
86 lines
2.7 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 POSIX_DRIVES_FILESYSTEM_H
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#define POSIX_DRIVES_FILESYSTEM_H
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#include "backends/fs/posix/posix-fs.h"
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class StdioStream;
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/**
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* POSIX file system node where the top-level directory is a hardcoded
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* list of drives.
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*/
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class DrivePOSIXFilesystemNode : public POSIXFilesystemNode {
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protected:
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virtual AbstractFSNode *makeNode() const {
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return new DrivePOSIXFilesystemNode(_config);
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}
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AbstractFSNode *makeNode(const Common::String &path) const override {
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return new DrivePOSIXFilesystemNode(path, _config);
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}
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public:
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enum BufferingMode {
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/** IO buffering is fully disabled */
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kBufferingModeDisabled,
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/** IO buffering is enabled and uses the libc implemenation */
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kBufferingModeStdio,
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/** IO buffering is enabled and uses ScummVM's buffering stream wraappers */
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kBufferingModeScummVM
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};
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struct Config {
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// Use the default stdio buffer size
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Config() : bufferingMode(kBufferingModeStdio), bufferSize(0) { }
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virtual ~Config() { }
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virtual bool getDrives(AbstractFSList &list, bool hidden) const = 0;
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virtual bool isDrive(const Common::String &path) const = 0;
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BufferingMode bufferingMode;
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uint32 bufferSize;
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};
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DrivePOSIXFilesystemNode(const Common::String &path, const Config &config);
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DrivePOSIXFilesystemNode(const Config &config);
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// AbstractFSNode API
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Common::SeekableReadStream *createReadStream() override;
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Common::SeekableWriteStream *createWriteStream() override;
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AbstractFSNode *getChild(const Common::String &n) const override;
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bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const override;
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AbstractFSNode *getParent() const override;
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protected:
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const Config &_config;
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private:
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bool _isPseudoRoot;
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DrivePOSIXFilesystemNode *getChildWithKnownType(const Common::String &n, bool isDirectoryFlag) const;
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bool isDrive(const Common::String &path) const;
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void configureStream(StdioStream *stream);
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};
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#endif
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