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backends/fs/kolibrios/kolibrios-fs.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef KOLIBRIOS_FS_H
+#define KOLIBRIOS_FS_H
+
+#include "backends/fs/abstract-fs.h"
+
+/**
+ * Implementation of the ScummVM file system API based on KolibriOS.
+ *
+ * Parts of this class are documented in the base interface class, AbstractFSNode.
+ */
+class KolibriOSFilesystemNode : public AbstractFSNode {
+public:
+	/**
+	 * Creates a KolibriOSFilesystemNode for a given path.
+	 *
+	 * @param path the path the new node should point to.
+	 */
+	KolibriOSFilesystemNode(const Common::String &path);
+
+	bool exists() const override;
+	Common::U32String getDisplayName() const override { return _displayName; }
+	Common::String getName() const override { return _displayName; }
+	Common::String getPath() const override { return _path; }
+	static bool isDirectory(uint32 attrs) { return attrs & 0x18; }
+	bool isDirectory() const override { return isDirectory(_attributes); }
+	bool isReadable() const override;
+	bool isWritable() const override;
+
+	AbstractFSNode *getChild(const Common::String &n) const override;
+	bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const override;
+	AbstractFSNode *getParent() const override;
+
+	Common::SeekableReadStream *createReadStream() override;
+	Common::SeekableWriteStream *createWriteStream(bool atomic) override;
+	bool createDirectory() override;
+
+protected:
+	Common::String _displayName;
+	Common::String _path;
+	uint32 _attributes;
+	bool _isValid;
+
+	virtual AbstractFSNode *makeNode(const Common::String &path) const {
+		return new KolibriOSFilesystemNode(path);
+	}
+
+	/**
+	 * Plain constructor, for internal use only (hence protected).
+	 */
+	KolibriOSFilesystemNode() : _attributes(0), _isValid(false) {}
+
+	/**
+	 * Tests and sets the _isValid and _isDirectory flags, using the stat() function.
+	 */
+	virtual void setFlags();
+};
+
+namespace KolibriOS {
+
+/**
+ * Assure that a directory path exists.
+ *
+ * @param dir The path which is required to exist.
+ * @param prefix An (optional) prefix which should not be created if non existent.
+ *               prefix is prepended to dir if supplied.
+ * @return true in case the directory exists (or was created), false otherwise.
+ */
+bool assureDirectoryExists(const Common::String &dir, const char *prefix = nullptr);
+
+} // End of namespace KolibriOS
+
+#endif