[ox/fs] Add PassthroughFS

deps/ox/src/ox/fs/filesystem/passthroughfs.hpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2015 - 2018 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#if __has_include(<filesystem>)
+
+#include <filesystem>
+
+#include "filesystem.hpp"
+
+namespace ox {
+
+/**
+ *
+ */
+class PassThroughFS: public FileSystem {
+	private:
+		std::filesystem::path m_path;
+
+	public:
+		PassThroughFS() = default;
+
+		PassThroughFS(const char *dirPath);
+
+		~PassThroughFS();
+
+		Error mkdir(const char *path, bool recursive = false) override;
+
+		Error move(const char *src, const char *dest) override;
+
+		Error read(const char *path, void *buffer, std::size_t buffSize) override;
+
+		Error read(uint64_t inode, void *buffer, std::size_t size) override;
+
+		Error read(uint64_t inode, std::size_t readStart, std::size_t readSize, void *buffer, std::size_t *size) override;
+
+		template<typename F>
+		Error ls(const char *dir, F cb);
+
+		Error remove(const char *path, bool recursive = false) override;
+
+		void resize(uint64_t size, void *buffer = nullptr) override;
+
+		Error write(const char *path, void *buffer, uint64_t size, uint8_t fileType = FileType_NormalFile) override;
+
+		Error write(uint64_t inode, void *buffer, uint64_t size, uint8_t fileType = FileType_NormalFile) override;
+
+		ValErr<FileStat> stat(uint64_t inode) override;
+
+		ValErr<FileStat> stat(const char *path) override;
+
+		uint64_t spaceNeeded(uint64_t size) override;
+
+		uint64_t available() override;
+
+		uint64_t size() const override;
+
+		uint8_t *buff() override;
+
+		Error walk(Error(*cb)(uint8_t, uint64_t, uint64_t)) override;
+
+		bool valid() const override;
+
+};
+
+template<typename F>
+Error PassThroughFS::ls(const char *dir, F cb) {
+	return OxError(1);
+}
+
+}
+
+#endif