Add VfsFile and VfsDirectory classes

src/core/CMakeLists.txt

@@ -29,6 +29,8 @@ add_library(core STATIC
     file_sys/sdmc_factory.cpp
     file_sys/sdmc_factory.h
     file_sys/storage.h
+    file_sys/vfs.cpp
+    file_sys/vfs.h
     frontend/emu_window.cpp
     frontend/emu_window.h
     frontend/framebuffer_layout.cpp

src/core/file_sys/vfs.cpp

@@ -0,0 +1,7 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {}

src/core/file_sys/vfs.h

@@ -0,0 +1,72 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "boost/optional.hpp"
+#include "common/common_types.h"
+#include <string>
+#include <vector>
+
+namespace FileSys
+{
+    struct VfsDirectory;
+
+    struct VfsFile : NonCopyable
+    {
+        bool IsReady();
+        bool IsGood();
+        operator bool();
+        void ResetState();
+
+        std::string GetName();
+        u64 GetSize();
+        bool Resize(u64 new_size);
+        boost::optional<VfsDirectory> GetContainingDirectory();
+
+        bool IsWritable();
+        bool IsReadable();
+
+        std::vector<u8> ReadBytes(u64 offset, u64 length);
+        template <typename T> u64 ReadBytes(T* data, u64 offset, u64 length);
+
+        template <typename T> std::vector<T> ReadArray(u64 offset, u64 number_elements);
+        template <typename T> u64 ReadArray(T* data, u64 offset, u64 number_elements);
+
+        std::vector<u8> ReadAllBytes();
+
+        void WriteBytes(const std::vector<u8>& data, u64 offset);
+        void ReplaceBytes(const std::vector<u8>& data);
+
+        bool Rename(const std::string& name);
+    };
+
+    struct VfsDirectory : NonCopyable
+    {
+        std::vector<VfsFile> GetFiles();
+        boost::optional<VfsFile> GetFile(const std::string& name);
+
+        std::vector<VfsDirectory> GetSubdirectories();
+        boost::optional<VfsFile> GetSubdirectory(const std::string& name);
+
+        bool IsWritable();
+        bool IsReadable();
+
+        bool IsRoot();
+
+        std::string GetName();
+        u64 GetSize();
+        boost::optional<VfsDirectory> GetParentDirectory();
+
+        boost::optional<VfsDirectory> CreateSubdirectory(const std::string& name);
+        boost::optional<VfsFile> CreateFile(const std::string& name);
+
+        bool DeleteSubdirectory(const std::string& name);
+        bool DeleteFile(const std::string& name);
+
+        bool Rename(const std::string& name);
+
+        bool Copy(const std::string& src, const std::string& dest);
+    };
+}