From 913896cbd99e414c325c9d47a987376ed6d9fffd Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Sat, 7 Jul 2018 20:24:51 -0700
Subject: Revert "Virtual Filesystem (#597)"

This reverts commit 77c684c1140f6bf3fb7d4560d06d2efb1a2ee5e2.
---
 src/core/file_sys/romfs_filesystem.cpp | 110 +++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 src/core/file_sys/romfs_filesystem.cpp

(limited to 'src/core/file_sys/romfs_filesystem.cpp')

diff --git a/src/core/file_sys/romfs_filesystem.cpp b/src/core/file_sys/romfs_filesystem.cpp
new file mode 100644
index 000000000..83162622b
--- /dev/null
+++ b/src/core/file_sys/romfs_filesystem.cpp
@@ -0,0 +1,110 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstring>
+#include <memory>
+#include "common/common_types.h"
+#include "common/logging/log.h"
+#include "core/file_sys/romfs_filesystem.h"
+
+namespace FileSys {
+
+std::string RomFS_FileSystem::GetName() const {
+    return "RomFS";
+}
+
+ResultVal<std::unique_ptr<StorageBackend>> RomFS_FileSystem::OpenFile(const std::string& path,
+                                                                      Mode mode) const {
+    return MakeResult<std::unique_ptr<StorageBackend>>(
+        std::make_unique<RomFS_Storage>(romfs_file, data_offset, data_size));
+}
+
+ResultCode RomFS_FileSystem::DeleteFile(const std::string& path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive ({}).", GetName());
+    // TODO(bunnei): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::RenameFile(const std::string& src_path,
+                                        const std::string& dest_path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).", GetName());
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::DeleteDirectory(const Path& path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
+                 GetName());
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
+                 GetName());
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::CreateFile(const std::string& path, u64 size) const {
+    LOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive ({}).", GetName());
+    // TODO(bunnei): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::CreateDirectory(const std::string& path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive ({}).",
+                 GetName());
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultCode RomFS_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+    LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).", GetName());
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultVal<std::unique_ptr<DirectoryBackend>> RomFS_FileSystem::OpenDirectory(
+    const std::string& path) const {
+    LOG_WARNING(Service_FS, "Opening Directory in a ROMFS archive");
+    return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>());
+}
+
+u64 RomFS_FileSystem::GetFreeSpaceSize() const {
+    LOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
+    return 0;
+}
+
+ResultVal<FileSys::EntryType> RomFS_FileSystem::GetEntryType(const std::string& path) const {
+    LOG_CRITICAL(Service_FS, "Called within an ROMFS archive (path {}).", path);
+    // TODO(wwylele): Use correct error code
+    return ResultCode(-1);
+}
+
+ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
+    LOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
+    romfs_file->Seek(data_offset + offset, SEEK_SET);
+    size_t read_length = (size_t)std::min((u64)length, data_size - offset);
+
+    return MakeResult<size_t>(romfs_file->ReadBytes(buffer, read_length));
+}
+
+ResultVal<size_t> RomFS_Storage::Write(const u64 offset, const size_t length, const bool flush,
+                                       const u8* buffer) const {
+    LOG_ERROR(Service_FS, "Attempted to write to ROMFS file");
+    // TODO(Subv): Find error code
+    return MakeResult<size_t>(0);
+}
+
+u64 RomFS_Storage::GetSize() const {
+    return data_size;
+}
+
+bool RomFS_Storage::SetSize(const u64 size) const {
+    LOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
+    return false;
+}
+
+} // namespace FileSys
-- 
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