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Merge pull request #768 from lioncash/string-view 

file_util, vfs: Use std::string_view where applicable
This commit is contained in:
bunnei 2018-07-22 11:32:28 -07:00 committed by GitHub
parent 3618a68f93 0081252d31
commit 5ee4c49c30
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 214 additions and 134 deletions
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82
src/common/file_util.cpp
View File

@ -792,66 +792,80 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
}
}
std::vector<std::string> SplitPathComponents(const std::string& filename) {
auto copy(filename);
std::vector<std::string> SplitPathComponents(std::string_view filename) {
std::string copy(filename);
std::replace(copy.begin(), copy.end(), '\\', '/');
std::vector<std::string> out;
std::stringstream stream(filename);
std::stringstream stream(copy);
std::string item;
while (std::getline(stream, item, '/'))
while (std::getline(stream, item, '/')) {
out.push_back(std::move(item));
}
return out;
}
std::string GetParentPath(const std::string& path) {
auto out = path;
const auto name_bck_index = out.find_last_of('\\');
const auto name_fwd_index = out.find_last_of('/');
std::string_view GetParentPath(std::string_view path) {
const auto name_bck_index = path.rfind('\\');
const auto name_fwd_index = path.rfind('/');
size_t name_index;
if (name_bck_index == std::string::npos || name_fwd_index == std::string::npos)
name_index = std::min<size_t>(name_bck_index, name_fwd_index);
else
name_index = std::max<size_t>(name_bck_index, name_fwd_index);
return out.erase(name_index);
if (name_bck_index == std::string_view::npos || name_fwd_index == std::string_view::npos) {
name_index = std::min(name_bck_index, name_fwd_index);
} else {
name_index = std::max(name_bck_index, name_fwd_index);
}
return path.substr(0, name_index);
}
std::string_view GetPathWithoutTop(std::string_view path) {
if (path.empty()) {
return path;
}
std::string GetPathWithoutTop(std::string path) {
if (path.empty())
return "";
while (path[0] == '\\' || path[0] == '/') {
path = path.substr(1);
if (path.empty())
return "";
path.remove_suffix(1);
if (path.empty()) {
return path;
}
const auto name_bck_index = path.find_first_of('\\');
const auto name_fwd_index = path.find_first_of('/');
}
const auto name_bck_index = path.find('\\');
const auto name_fwd_index = path.find('/');
return path.substr(std::min(name_bck_index, name_fwd_index) + 1);
}
std::string GetFilename(std::string path) {
std::replace(path.begin(), path.end(), '\\', '/');
auto name_index = path.find_last_of('/');
if (name_index == std::string::npos)
return "";
std::string_view GetFilename(std::string_view path) {
const auto name_index = path.find_last_of("\\/");
if (name_index == std::string_view::npos) {
return {};
}
return path.substr(name_index + 1);
}
std::string GetExtensionFromFilename(const std::string& name) {
size_t index = name.find_last_of('.');
if (index == std::string::npos)
return "";
std::string_view GetExtensionFromFilename(std::string_view name) {
const size_t index = name.rfind('.');
if (index == std::string_view::npos) {
return {};
}
return name.substr(index + 1);
}
std::string RemoveTrailingSlash(const std::string& path) {
if (path.empty())
std::string_view RemoveTrailingSlash(std::string_view path) {
if (path.empty()) {
return path;
if (path.back() == '\\' || path.back() == '/')
return path.substr(0, path.size() - 1);
}
if (path.back() == '\\' || path.back() == '/') {
path.remove_suffix(1);
return path;
}
return path;
}

13
src/common/file_util.h
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@ -9,6 +9,7 @@
#include <fstream>
#include <functional>
#include <string>
#include <string_view>
#include <type_traits>
#include <vector>
#include "common/common_types.h"
@ -151,22 +152,22 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
// Splits the path on '/' or '\' and put the components into a vector
// i.e. "C:\Users\Yuzu\Documents\save.bin" becomes {"C:", "Users", "Yuzu", "Documents", "save.bin" }
std::vector<std::string> SplitPathComponents(const std::string& filename);
std::vector<std::string> SplitPathComponents(std::string_view filename);
// Gets all of the text up to the last '/' or '\' in the path.
std::string GetParentPath(const std::string& path);
std::string_view GetParentPath(std::string_view path);
// Gets all of the text after the first '/' or '\' in the path.
std::string GetPathWithoutTop(std::string path);
std::string_view GetPathWithoutTop(std::string_view path);
// Gets the filename of the path
std::string GetFilename(std::string path);
std::string_view GetFilename(std::string_view path);
// Gets the extension of the filename
std::string GetExtensionFromFilename(const std::string& name);
std::string_view GetExtensionFromFilename(std::string_view name);
// Removes the final '/' or '\' if one exists
std::string RemoveTrailingSlash(const std::string& path);
std::string_view RemoveTrailingSlash(std::string_view path);
// Creates a new vector containing indices [first, last) from the original.
template <typename T>

111
src/core/file_sys/vfs.cpp
View File

@ -13,7 +13,7 @@ namespace FileSys {
VfsFile::~VfsFile() = default;
std::string VfsFile::GetExtension() const {
return FileUtil::GetExtensionFromFilename(GetName());
return std::string(FileUtil::GetExtensionFromFilename(GetName()));
}
VfsDirectory::~VfsDirectory() = default;
@ -46,64 +46,80 @@ size_t VfsFile::WriteBytes(const std::vector<u8>& data, size_t offset) {
return Write(data.data(), data.size(), offset);
}
std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(const std::string& path) const {
std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(std::string_view path) const {
auto vec = FileUtil::SplitPathComponents(path);
vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
vec.end());
if (vec.empty())
if (vec.empty()) {
return nullptr;
if (vec.size() == 1)
}
if (vec.size() == 1) {
return GetFile(vec[0]);
}
auto dir = GetSubdirectory(vec[0]);
for (size_t component = 1; component < vec.size() - 1; ++component) {
if (dir == nullptr)
if (dir == nullptr) {
return nullptr;
}
dir = dir->GetSubdirectory(vec[component]);
}
if (dir == nullptr)
if (dir == nullptr) {
return nullptr;
}
return dir->GetFile(vec.back());
}
std::shared_ptr<VfsFile> VfsDirectory::GetFileAbsolute(const std::string& path) const {
if (IsRoot())
std::shared_ptr<VfsFile> VfsDirectory::GetFileAbsolute(std::string_view path) const {
if (IsRoot()) {
return GetFileRelative(path);
}
return GetParentDirectory()->GetFileAbsolute(path);
}
std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(const std::string& path) const {
std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(std::string_view path) const {
auto vec = FileUtil::SplitPathComponents(path);
vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
vec.end());
if (vec.empty())
if (vec.empty()) {
// TODO(DarkLordZach): Return this directory if path is '/' or similar. Can't currently
// because of const-ness
return nullptr;
}
auto dir = GetSubdirectory(vec[0]);
for (size_t component = 1; component < vec.size(); ++component) {
if (dir == nullptr)
if (dir == nullptr) {
return nullptr;
}
dir = dir->GetSubdirectory(vec[component]);
}
return dir;
}
std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryAbsolute(const std::string& path) const {
if (IsRoot())
std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryAbsolute(std::string_view path) const {
if (IsRoot()) {
return GetDirectoryRelative(path);
}
return GetParentDirectory()->GetDirectoryAbsolute(path);
}
std::shared_ptr<VfsFile> VfsDirectory::GetFile(const std::string& name) const {
std::shared_ptr<VfsFile> VfsDirectory::GetFile(std::string_view name) const {
const auto& files = GetFiles();
const auto iter = std::find_if(files.begin(), files.end(),
[&name](const auto& file1) { return name == file1->GetName(); });
return iter == files.end() ? nullptr : *iter;
}
std::shared_ptr<VfsDirectory> VfsDirectory::GetSubdirectory(const std::string& name) const {
std::shared_ptr<VfsDirectory> VfsDirectory::GetSubdirectory(std::string_view name) const {
const auto& subs = GetSubdirectories();
const auto iter = std::find_if(subs.begin(), subs.end(),
[&name](const auto& file1) { return name == file1->GetName(); });
@ -128,77 +144,96 @@ size_t VfsDirectory::GetSize() const {
return file_total + subdir_total;
}
std::shared_ptr<VfsFile> VfsDirectory::CreateFileRelative(const std::string& path) {
std::shared_ptr<VfsFile> VfsDirectory::CreateFileRelative(std::string_view path) {
auto vec = FileUtil::SplitPathComponents(path);
vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
vec.end());
if (vec.empty())
if (vec.empty()) {
return nullptr;
if (vec.size() == 1)
}
if (vec.size() == 1) {
return CreateFile(vec[0]);
}
auto dir = GetSubdirectory(vec[0]);
if (dir == nullptr) {
dir = CreateSubdirectory(vec[0]);
if (dir == nullptr)
if (dir == nullptr) {
return nullptr;
}
}
return dir->CreateFileRelative(FileUtil::GetPathWithoutTop(path));
}
std::shared_ptr<VfsFile> VfsDirectory::CreateFileAbsolute(const std::string& path) {
if (IsRoot())
std::shared_ptr<VfsFile> VfsDirectory::CreateFileAbsolute(std::string_view path) {
if (IsRoot()) {
return CreateFileRelative(path);
}
return GetParentDirectory()->CreateFileAbsolute(path);
}
std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryRelative(const std::string& path) {
std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryRelative(std::string_view path) {
auto vec = FileUtil::SplitPathComponents(path);
vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
vec.end());
if (vec.empty())
if (vec.empty()) {
return nullptr;
if (vec.size() == 1)
}
if (vec.size() == 1) {
return CreateSubdirectory(vec[0]);
}
auto dir = GetSubdirectory(vec[0]);
if (dir == nullptr) {
dir = CreateSubdirectory(vec[0]);
if (dir == nullptr)
if (dir == nullptr) {
return nullptr;
}
}
return dir->CreateDirectoryRelative(FileUtil::GetPathWithoutTop(path));
}
std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryAbsolute(const std::string& path) {
if (IsRoot())
std::shared_ptr<VfsDirectory> VfsDirectory::CreateDirectoryAbsolute(std::string_view path) {
if (IsRoot()) {
return CreateDirectoryRelative(path);
}
return GetParentDirectory()->CreateDirectoryAbsolute(path);
}
bool VfsDirectory::DeleteSubdirectoryRecursive(const std::string& name) {
bool VfsDirectory::DeleteSubdirectoryRecursive(std::string_view name) {
auto dir = GetSubdirectory(name);
if (dir == nullptr)
if (dir == nullptr) {
return false;
}
bool success = true;
for (const auto& file : dir->GetFiles()) {
if (!DeleteFile(file->GetName()))
if (!DeleteFile(file->GetName())) {
success = false;
}
}
for (const auto& sdir : dir->GetSubdirectories()) {
if (!dir->DeleteSubdirectoryRecursive(sdir->GetName()))
if (!dir->DeleteSubdirectoryRecursive(sdir->GetName())) {
success = false;
}
}
return success;
}
bool VfsDirectory::Copy(const std::string& src, const std::string& dest) {
bool VfsDirectory::Copy(std::string_view src, std::string_view dest) {
const auto f1 = GetFile(src);
auto f2 = CreateFile(dest);
if (f1 == nullptr || f2 == nullptr)
if (f1 == nullptr || f2 == nullptr) {
return false;
}
if (!f2->Resize(f1->GetSize())) {
DeleteFile(dest);
@ -216,23 +251,23 @@ bool ReadOnlyVfsDirectory::IsReadable() const {
return true;
}
std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectory::CreateSubdirectory(const std::string& name) {
std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectory::CreateSubdirectory(std::string_view name) {
return nullptr;
}
std::shared_ptr<VfsFile> ReadOnlyVfsDirectory::CreateFile(const std::string& name) {
std::shared_ptr<VfsFile> ReadOnlyVfsDirectory::CreateFile(std::string_view name) {
return nullptr;
}
bool ReadOnlyVfsDirectory::DeleteSubdirectory(const std::string& name) {
bool ReadOnlyVfsDirectory::DeleteSubdirectory(std::string_view name) {
return false;
}
bool ReadOnlyVfsDirectory::DeleteFile(const std::string& name) {
bool ReadOnlyVfsDirectory::DeleteFile(std::string_view name) {
return false;
}
bool ReadOnlyVfsDirectory::Rename(const std::string& name) {
bool ReadOnlyVfsDirectory::Rename(std::string_view name) {
return false;
}
} // namespace FileSys

57
src/core/file_sys/vfs.h
View File

@ -6,11 +6,11 @@
#include <memory>
#include <string>
#include <string_view>
#include <type_traits>
#include <vector>
#include "boost/optional.hpp"
#include "common/common_types.h"
#include "common/file_util.h"
namespace FileSys {
struct VfsFile;
@ -112,7 +112,7 @@ struct VfsFile : NonCopyable {
}
// Renames the file to name. Returns whether or not the operation was successsful.
virtual bool Rename(const std::string& name) = 0;
virtual bool Rename(std::string_view name) = 0;
};
// A class representing a directory in an abstract filesystem.
@ -121,27 +121,27 @@ struct VfsDirectory : NonCopyable {
// Retrives the file located at path as if the current directory was root. Returns nullptr if
// not found.
virtual std::shared_ptr<VfsFile> GetFileRelative(const std::string& path) const;
virtual std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const;
// Calls GetFileRelative(path) on the root of the current directory.
virtual std::shared_ptr<VfsFile> GetFileAbsolute(const std::string& path) const;
virtual std::shared_ptr<VfsFile> GetFileAbsolute(std::string_view path) const;
// Retrives the directory located at path as if the current directory was root. Returns nullptr
// if not found.
virtual std::shared_ptr<VfsDirectory> GetDirectoryRelative(const std::string& path) const;
virtual std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const;
// Calls GetDirectoryRelative(path) on the root of the current directory.
virtual std::shared_ptr<VfsDirectory> GetDirectoryAbsolute(const std::string& path) const;
virtual std::shared_ptr<VfsDirectory> GetDirectoryAbsolute(std::string_view path) const;
// Returns a vector containing all of the files in this directory.
virtual std::vector<std::shared_ptr<VfsFile>> GetFiles() const = 0;
// Returns the file with filename matching name. Returns nullptr if directory dosen't have a
// file with name.
virtual std::shared_ptr<VfsFile> GetFile(const std::string& name) const;
virtual std::shared_ptr<VfsFile> GetFile(std::string_view name) const;
// Returns a vector containing all of the subdirectories in this directory.
virtual std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const = 0;
// Returns the directory with name matching name. Returns nullptr if directory dosen't have a
// directory with name.
virtual std::shared_ptr<VfsDirectory> GetSubdirectory(const std::string& name) const;
virtual std::shared_ptr<VfsDirectory> GetSubdirectory(std::string_view name) const;
// Returns whether or not the directory can be written to.
virtual bool IsWritable() const = 0;
@ -161,53 +161,56 @@ struct VfsDirectory : NonCopyable {
// Creates a new subdirectory with name name. Returns a pointer to the new directory or nullptr
// if the operation failed.
virtual std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) = 0;
virtual std::shared_ptr<VfsDirectory> CreateSubdirectory(std::string_view name) = 0;
// Creates a new file with name name. Returns a pointer to the new file or nullptr if the
// operation failed.
virtual std::shared_ptr<VfsFile> CreateFile(const std::string& name) = 0;
virtual std::shared_ptr<VfsFile> CreateFile(std::string_view name) = 0;
// Creates a new file at the path relative to this directory. Also creates directories if
// they do not exist and is supported by this implementation. Returns nullptr on any failure.
virtual std::shared_ptr<VfsFile> CreateFileRelative(const std::string& path);
virtual std::shared_ptr<VfsFile> CreateFileRelative(std::string_view path);
// Creates a new file at the path relative to root of this directory. Also creates directories
// if they do not exist and is supported by this implementation. Returns nullptr on any failure.
virtual std::shared_ptr<VfsFile> CreateFileAbsolute(const std::string& path);
virtual std::shared_ptr<VfsFile> CreateFileAbsolute(std::string_view path);
// Creates a new directory at the path relative to this directory. Also creates directories if
// they do not exist and is supported by this implementation. Returns nullptr on any failure.
virtual std::shared_ptr<VfsDirectory> CreateDirectoryRelative(const std::string& path);
virtual std::shared_ptr<VfsDirectory> CreateDirectoryRelative(std::string_view path);
// Creates a new directory at the path relative to root of this directory. Also creates
// directories if they do not exist and is supported by this implementation. Returns nullptr on
// any failure.
virtual std::shared_ptr<VfsDirectory> CreateDirectoryAbsolute(const std::string& path);
virtual std::shared_ptr<VfsDirectory> CreateDirectoryAbsolute(std::string_view path);
// Deletes the subdirectory with name and returns true on success.
virtual bool DeleteSubdirectory(const std::string& name) = 0;
virtual bool DeleteSubdirectory(std::string_view name) = 0;
// Deletes all subdirectories and files of subdirectory with name recirsively and then deletes
// the subdirectory. Returns true on success.
virtual bool DeleteSubdirectoryRecursive(const std::string& name);
virtual bool DeleteSubdirectoryRecursive(std::string_view name);
// Returnes whether or not the file with name name was deleted successfully.
virtual bool DeleteFile(const std::string& name) = 0;
virtual bool DeleteFile(std::string_view name) = 0;
// Returns whether or not this directory was renamed to name.
virtual bool Rename(const std::string& name) = 0;
virtual bool Rename(std::string_view name) = 0;
// Returns whether or not the file with name src was successfully copied to a new file with name
// dest.
virtual bool Copy(const std::string& src, const std::string& dest);
virtual bool Copy(std::string_view src, std::string_view dest);
// Interprets the file with name file instead as a directory of type directory.
// The directory must have a constructor that takes a single argument of type
// std::shared_ptr<VfsFile>. Allows to reinterpret container files (i.e NCA, zip, XCI, etc) as a
// subdirectory in one call.
template <typename Directory>
bool InterpretAsDirectory(const std::string& file) {
bool InterpretAsDirectory(std::string_view file) {
auto file_p = GetFile(file);
if (file_p == nullptr)
if (file_p == nullptr) {
return false;
return ReplaceFileWithSubdirectory(file, std::make_shared<Directory>(file_p));
}
return ReplaceFileWithSubdirectory(file_p, std::make_shared<Directory>(file_p));
}
protected:
@ -221,10 +224,10 @@ protected:
struct ReadOnlyVfsDirectory : public VfsDirectory {
bool IsWritable() const override;
bool IsReadable() const override;
std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
bool DeleteSubdirectory(const std::string& name) override;
bool DeleteFile(const std::string& name) override;
bool Rename(const std::string& name) 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;
};
} // namespace FileSys

2
src/core/file_sys/vfs_offset.cpp
View File

@ -80,7 +80,7 @@ size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, size_t r_offset) {
return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset);
}
bool OffsetVfsFile::Rename(const std::string& name) {
bool OffsetVfsFile::Rename(std::string_view name) {
return file->Rename(name);
}

5
src/core/file_sys/vfs_offset.h
View File

@ -4,6 +4,9 @@
#pragma once
#include <memory>
#include <string_view>
#include "core/file_sys/vfs.h"
namespace FileSys {
@ -30,7 +33,7 @@ struct OffsetVfsFile : public VfsFile {
bool WriteByte(u8 data, size_t offset) override;
size_t WriteBytes(const std::vector<u8>& data, size_t offset) override;
bool Rename(const std::string& name) override;
bool Rename(std::string_view name) override;
size_t GetOffset() const;

57
src/core/file_sys/vfs_real.cpp
View File

@ -72,12 +72,15 @@ size_t RealVfsFile::Write(const u8* data, size_t length, size_t offset) {
return backing.WriteBytes(data, length);
}
bool RealVfsFile::Rename(const std::string& name) {
const auto out = FileUtil::Rename(GetName(), name);
path = parent_path + DIR_SEP + name;
bool RealVfsFile::Rename(std::string_view name) {
std::string name_str(name.begin(), name.end());
const auto out = FileUtil::Rename(GetName(), name_str);
path = (parent_path + DIR_SEP).append(name);
path_components = parent_components;
path_components.push_back(name);
path_components.push_back(std::move(name_str));
backing = FileUtil::IOFile(path, PermissionsToCharArray(perms).c_str());
return out;
}
@ -135,36 +138,54 @@ std::shared_ptr<VfsDirectory> RealVfsDirectory::GetParentDirectory() const {
return std::make_shared<RealVfsDirectory>(parent_path, perms);
}
std::shared_ptr<VfsDirectory> RealVfsDirectory::CreateSubdirectory(const std::string& name) {
if (!FileUtil::CreateDir(path + DIR_SEP + name))
std::shared_ptr<VfsDirectory> RealVfsDirectory::CreateSubdirectory(std::string_view name) {
const std::string subdir_path = (path + DIR_SEP).append(name);
if (!FileUtil::CreateDir(subdir_path)) {
return nullptr;
subdirectories.emplace_back(std::make_shared<RealVfsDirectory>(path + DIR_SEP + name, perms));
}
subdirectories.emplace_back(std::make_shared<RealVfsDirectory>(subdir_path, perms));
return subdirectories.back();
}
std::shared_ptr<VfsFile> RealVfsDirectory::CreateFile(const std::string& name) {
if (!FileUtil::CreateEmptyFile(path + DIR_SEP + name))
std::shared_ptr<VfsFile> RealVfsDirectory::CreateFile(std::string_view name) {
const std::string file_path = (path + DIR_SEP).append(name);
if (!FileUtil::CreateEmptyFile(file_path)) {
return nullptr;
files.emplace_back(std::make_shared<RealVfsFile>(path + DIR_SEP + name, perms));
}
files.emplace_back(std::make_shared<RealVfsFile>(file_path, perms));
return files.back();
}
bool RealVfsDirectory::DeleteSubdirectory(const std::string& name) {
return FileUtil::DeleteDirRecursively(path + DIR_SEP + name);
bool RealVfsDirectory::DeleteSubdirectory(std::string_view name) {
const std::string subdir_path = (path + DIR_SEP).append(name);
return FileUtil::DeleteDirRecursively(subdir_path);
}
bool RealVfsDirectory::DeleteFile(const std::string& name) {
auto file = GetFile(name);
if (file == nullptr)
bool RealVfsDirectory::DeleteFile(std::string_view name) {
const auto file = GetFile(name);
if (file == nullptr) {
return false;
}
files.erase(std::find(files.begin(), files.end(), file));
auto real_file = std::static_pointer_cast<RealVfsFile>(file);
real_file->Close();
return FileUtil::Delete(path + DIR_SEP + name);
const std::string file_path = (path + DIR_SEP).append(name);
return FileUtil::Delete(file_path);
}
bool RealVfsDirectory::Rename(const std::string& name) {
return FileUtil::Rename(path, parent_path + DIR_SEP + name);
bool RealVfsDirectory::Rename(std::string_view name) {
const std::string new_name = (parent_path + DIR_SEP).append(name);
return FileUtil::Rename(path, new_name);
}
bool RealVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {

14
src/core/file_sys/vfs_real.h
View File

@ -4,6 +4,8 @@
#pragma once
#include <string_view>
#include "common/file_util.h"
#include "core/file_sys/mode.h"
#include "core/file_sys/vfs.h"
@ -24,7 +26,7 @@ struct RealVfsFile : public VfsFile {
bool IsReadable() const override;
size_t Read(u8* data, size_t length, size_t offset) const override;
size_t Write(const u8* data, size_t length, size_t offset) override;
bool Rename(const std::string& name) override;
bool Rename(std::string_view name) override;
private:
bool Close();
@ -47,11 +49,11 @@ struct RealVfsDirectory : public VfsDirectory {
bool IsReadable() const override;
std::string GetName() const override;
std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
bool DeleteSubdirectory(const std::string& name) override;
bool DeleteFile(const std::string& name) override;
bool Rename(const std::string& name) 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;

2
src/core/hle/service/filesystem/filesystem.cpp
View File

@ -24,7 +24,7 @@ namespace Service::FileSystem {
constexpr u64 EMULATED_SD_REPORTED_SIZE = 32000000000;
static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
const std::string& dir_name) {
std::string_view dir_name) {
if (dir_name.empty() || dir_name == "." || dir_name == "/" || dir_name == "\\")
return base;

3
src/core/loader/loader.cpp
View File

@ -49,7 +49,8 @@ FileType GuessFromFilename(const std::string& name) {
if (name == "main")
return FileType::DeconstructedRomDirectory;
const std::string extension = Common::ToLower(FileUtil::GetExtensionFromFilename(name));
const std::string extension =
Common::ToLower(std::string(FileUtil::GetExtensionFromFilename(name)));
if (extension == "elf")
return FileType::ELF;