vfs: add vfs_cached for romfs build

This commit is contained in:
Liam 2023-06-03 08:42:52 -04:00
parent e931bb8c44
commit 790f91fcc5
4 changed files with 99 additions and 2 deletions

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@ -106,6 +106,8 @@ add_library(core STATIC
file_sys/system_archive/time_zone_binary.h
file_sys/vfs.cpp
file_sys/vfs.h
file_sys/vfs_cached.cpp
file_sys/vfs_cached.h
file_sys/vfs_concat.cpp
file_sys/vfs_concat.h
file_sys/vfs_layered.cpp

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@ -21,6 +21,7 @@
#include "core/file_sys/patch_manager.h"
#include "core/file_sys/registered_cache.h"
#include "core/file_sys/romfs.h"
#include "core/file_sys/vfs_cached.h"
#include "core/file_sys/vfs_layered.h"
#include "core/file_sys/vfs_vector.h"
#include "core/hle/service/filesystem/filesystem.h"
@ -380,11 +381,11 @@ static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType t
auto romfs_dir = FindSubdirectoryCaseless(subdir, "romfs");
if (romfs_dir != nullptr)
layers.push_back(std::move(romfs_dir));
layers.push_back(std::make_shared<CachedVfsDirectory>(romfs_dir));
auto ext_dir = FindSubdirectoryCaseless(subdir, "romfs_ext");
if (ext_dir != nullptr)
layers_ext.push_back(std::move(ext_dir));
layers_ext.push_back(std::make_shared<CachedVfsDirectory>(ext_dir));
}
// When there are no layers to apply, return early as there is no need to rebuild the RomFS

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@ -0,0 +1,63 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/file_sys/vfs_cached.h"
#include "core/file_sys/vfs_types.h"
namespace FileSys {
CachedVfsDirectory::CachedVfsDirectory(VirtualDir& source_dir)
: name(source_dir->GetName()), parent(source_dir->GetParentDirectory()) {
for (auto& dir : source_dir->GetSubdirectories()) {
dirs.emplace(dir->GetName(), std::make_shared<CachedVfsDirectory>(dir));
}
for (auto& file : source_dir->GetFiles()) {
files.emplace(file->GetName(), file);
}
}
CachedVfsDirectory::~CachedVfsDirectory() = default;
VirtualFile CachedVfsDirectory::GetFile(std::string_view file_name) const {
auto it = files.find(file_name);
if (it != files.end()) {
return it->second;
}
return nullptr;
}
VirtualDir CachedVfsDirectory::GetSubdirectory(std::string_view dir_name) const {
auto it = dirs.find(dir_name);
if (it != dirs.end()) {
return it->second;
}
return nullptr;
}
std::vector<VirtualFile> CachedVfsDirectory::GetFiles() const {
std::vector<VirtualFile> out;
for (auto& [file_name, file] : files) {
out.push_back(file);
}
return out;
}
std::vector<VirtualDir> CachedVfsDirectory::GetSubdirectories() const {
std::vector<VirtualDir> out;
for (auto& [dir_name, dir] : dirs) {
out.push_back(dir);
}
return out;
}
std::string CachedVfsDirectory::GetName() const {
return name;
}
VirtualDir CachedVfsDirectory::GetParentDirectory() const {
return parent;
}
} // namespace FileSys

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@ -0,0 +1,31 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <string_view>
#include <vector>
#include "core/file_sys/vfs.h"
namespace FileSys {
class CachedVfsDirectory : public ReadOnlyVfsDirectory {
public:
CachedVfsDirectory(VirtualDir& source_directory);
~CachedVfsDirectory() override;
VirtualFile GetFile(std::string_view file_name) const override;
VirtualDir GetSubdirectory(std::string_view dir_name) const override;
std::vector<VirtualFile> GetFiles() const override;
std::vector<VirtualDir> GetSubdirectories() const override;
std::string GetName() const override;
VirtualDir GetParentDirectory() const override;
private:
std::string name;
VirtualDir parent;
std::map<std::string, VirtualDir, std::less<>> dirs;
std::map<std::string, VirtualFile, std::less<>> files;
};
} // namespace FileSys