Initial commit

backends/fs/posix-drives/posix-drives-fs-factory.h

@@ -0,0 +1,76 @@
+/* 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 POSIX_DRIVES_FILESYSTEM_FACTORY_H
+#define POSIX_DRIVES_FILESYSTEM_FACTORY_H
+
+#include "backends/fs/fs-factory.h"
+#include "backends/fs/posix-drives/posix-drives-fs.h"
+
+/**
+ * A FilesystemFactory implementation for filesystems with a special
+ * top-level directory with hard-coded entries but that otherwise
+ * implement the POSIX APIs.
+ *
+ * For used with paths like these:
+ * - 'sdcard:/games/scummvm.ini'
+ * - 'hdd1:/usr/bin'
+ */
+class DrivesPOSIXFilesystemFactory : public FilesystemFactory {
+public:
+	DrivesPOSIXFilesystemFactory() : _config(this) { }
+
+	/**
+	 * Add a drive to the top-level directory
+	 */
+	void addDrive(const Common::String &name);
+
+	/**
+	 * Configure file stream buffering
+	 *
+	 * @param bufferingMode select the buffering implementation to use
+	 * @param bufferSize the size of the IO buffer in bytes. A buffer size of 0 means the default size should be used
+	 */
+	void configureBuffering(DrivePOSIXFilesystemNode::BufferingMode bufferingMode, uint32 bufferSize);
+
+protected:
+	// FilesystemFactory API
+	AbstractFSNode *makeRootFileNode() const override;
+	AbstractFSNode *makeCurrentDirectoryFileNode() const override;
+	AbstractFSNode *makeFileNodePath(const Common::String &path) const override;
+
+	typedef Common::Array<Common::String> DrivesArray;
+	struct StaticDrivesConfig : public DrivePOSIXFilesystemNode::Config {
+		StaticDrivesConfig(const DrivesPOSIXFilesystemFactory *factory) : _factory(factory) { }
+
+		bool getDrives(AbstractFSList &list, bool hidden) const override;
+		bool isDrive(const Common::String &path) const override;
+
+		DrivesArray drives;
+
+	private:
+		const DrivesPOSIXFilesystemFactory *_factory;
+	};
+
+	StaticDrivesConfig _config;
+};
+
+#endif