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Diffstat (limited to '')
-rw-r--r-- | src/core/file_sys/vfs_layered.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/core/file_sys/vfs_layered.h b/src/core/file_sys/vfs_layered.h new file mode 100644 index 000000000..4f6e341ab --- /dev/null +++ b/src/core/file_sys/vfs_layered.h @@ -0,0 +1,52 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <memory> +#include "core/file_sys/vfs.h" + +namespace FileSys { + +// Wrapper function to allow for more efficient handling of dirs.size() == 0, 1 cases. +VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name = ""); + +// Class that stacks multiple VfsDirectories on top of each other, attempting to read from the first +// one and falling back to the one after. The highest priority directory (overwrites all others) +// should be element 0 in the dirs vector. +class LayeredVfsDirectory : public VfsDirectory { + friend VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name); + + LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name); + +public: + ~LayeredVfsDirectory() override; + + std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override; + std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override; + std::shared_ptr<VfsFile> GetFile(std::string_view name) const override; + std::shared_ptr<VfsDirectory> GetSubdirectory(std::string_view name) const override; + std::string GetFullPath() const override; + + std::vector<std::shared_ptr<VfsFile>> GetFiles() const override; + std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override; + bool IsWritable() const override; + bool IsReadable() const override; + std::string GetName() const override; + std::shared_ptr<VfsDirectory> GetParentDirectory() const override; + std::shared_ptr<VfsDirectory> CreateSubdirectory(std::string_view name) override; + std::shared_ptr<VfsFile> CreateFile(std::string_view name) override; + bool DeleteSubdirectory(std::string_view name) override; + bool DeleteFile(std::string_view name) override; + bool Rename(std::string_view name) override; + +protected: + bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override; + +private: + std::vector<VirtualDir> dirs; + std::string name; +}; + +} // namespace FileSys |