mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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0105455086
subrepo: subdir: "libraries" merged: "07af583b" upstream: origin: "https://github.com/Atmosphere-NX/Atmosphere-libs" branch: "master" commit: "07af583b" git-subrepo: version: "0.4.0" origin: "https://github.com/ingydotnet/git-subrepo" commit: "5d6aba9"
343 lines
15 KiB
C++
343 lines
15 KiB
C++
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include <stratosphere/fssrv/fssrv_interface_adapters.hpp>
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namespace ams::fssrv::impl {
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FileInterfaceAdapter::FileInterfaceAdapter(std::unique_ptr<fs::fsa::IFile> &&file, std::shared_ptr<FileSystemInterfaceAdapter> &&parent, std::unique_lock<fssystem::SemaphoreAdapter> &&sema)
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: parent_filesystem(std::move(parent)), base_file(std::move(file)), open_count_semaphore(std::move(sema))
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{
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/* ... */
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}
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FileInterfaceAdapter::~FileInterfaceAdapter() {
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/* ... */
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}
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void FileInterfaceAdapter::InvalidateCache() {
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AMS_ASSERT(this->parent_filesystem->IsDeepRetryEnabled());
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std::scoped_lock<os::ReadWriteLock> scoped_write_lock(this->parent_filesystem->GetReadWriteLockForCacheInvalidation());
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this->base_file->OperateRange(nullptr, 0, fs::OperationId::InvalidateCache, 0, std::numeric_limits<s64>::max(), nullptr, 0);
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}
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Result FileInterfaceAdapter::Read(ams::sf::Out<s64> out, s64 offset, const ams::sf::OutNonSecureBuffer &buffer, s64 size, fs::ReadOption option) {
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/* TODO: N retries on ResultDataCorrupted, we may want to eventually. */
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/* TODO: Deep retry */
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R_UNLESS(offset >= 0, fs::ResultInvalidOffset());
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R_UNLESS(size >= 0, fs::ResultInvalidSize());
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size_t read_size = 0;
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R_TRY(this->base_file->Read(&read_size, offset, buffer.GetPointer(), static_cast<size_t>(size), option));
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out.SetValue(read_size);
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return ResultSuccess();
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}
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Result FileInterfaceAdapter::Write(s64 offset, const ams::sf::InNonSecureBuffer &buffer, s64 size, fs::WriteOption option) {
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/* TODO: N increases thread priority temporarily when writing. We may want to eventually. */
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R_UNLESS(offset >= 0, fs::ResultInvalidOffset());
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R_UNLESS(size >= 0, fs::ResultInvalidSize());
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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return this->base_file->Write(offset, buffer.GetPointer(), size, option);
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}
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Result FileInterfaceAdapter::Flush() {
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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return this->base_file->Flush();
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}
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Result FileInterfaceAdapter::SetSize(s64 size) {
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R_UNLESS(size >= 0, fs::ResultInvalidSize());
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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return this->base_file->SetSize(size);
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}
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Result FileInterfaceAdapter::GetSize(ams::sf::Out<s64> out) {
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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return this->base_file->GetSize(out.GetPointer());
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}
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Result FileInterfaceAdapter::OperateRange(ams::sf::Out<fs::FileQueryRangeInfo> out, s32 op_id, s64 offset, s64 size) {
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/* N includes this redundant check, so we will too. */
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R_UNLESS(out.GetPointer() != nullptr, fs::ResultNullptrArgument());
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out->Clear();
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if (op_id == static_cast<s32>(fs::OperationId::QueryRange)) {
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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fs::FileQueryRangeInfo info;
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R_TRY(this->base_file->OperateRange(&info, sizeof(info), fs::OperationId::QueryRange, offset, size, nullptr, 0));
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out->Merge(info);
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}
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return ResultSuccess();
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}
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DirectoryInterfaceAdapter::DirectoryInterfaceAdapter(std::unique_ptr<fs::fsa::IDirectory> &&dir, std::shared_ptr<FileSystemInterfaceAdapter> &&parent, std::unique_lock<fssystem::SemaphoreAdapter> &&sema)
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: parent_filesystem(std::move(parent)), base_dir(std::move(dir)), open_count_semaphore(std::move(sema))
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{
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/* ... */
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}
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DirectoryInterfaceAdapter::~DirectoryInterfaceAdapter() {
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/* ... */
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}
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Result DirectoryInterfaceAdapter::Read(ams::sf::Out<s64> out, const ams::sf::OutBuffer &out_entries) {
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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const size_t max_num_entries = out_entries.GetSize() / sizeof(fs::DirectoryEntry);
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R_UNLESS(max_num_entries >= 0, fs::ResultInvalidSize());
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/* TODO: N retries on ResultDataCorrupted, we may want to eventually. */
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return this->base_dir->Read(out.GetPointer(), reinterpret_cast<fs::DirectoryEntry *>(out_entries.GetPointer()), max_num_entries);
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}
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Result DirectoryInterfaceAdapter::GetEntryCount(ams::sf::Out<s64> out) {
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auto read_lock = this->parent_filesystem->AcquireCacheInvalidationReadLock();
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return this->base_dir->GetEntryCount(out.GetPointer());
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}
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FileSystemInterfaceAdapter::FileSystemInterfaceAdapter(std::shared_ptr<fs::fsa::IFileSystem> &&fs, bool open_limited)
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: base_fs(std::move(fs)), open_count_limited(open_limited), deep_retry_enabled(false)
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{
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/* ... */
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}
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FileSystemInterfaceAdapter::~FileSystemInterfaceAdapter() {
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/* ... */
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}
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bool FileSystemInterfaceAdapter::IsDeepRetryEnabled() const {
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return this->deep_retry_enabled;
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}
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bool FileSystemInterfaceAdapter::IsAccessFailureDetectionObserved() const {
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/* TODO: This calls into fssrv::FileSystemProxyImpl, which we don't have yet. */
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AMS_ASSERT(false);
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}
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std::optional<std::shared_lock<os::ReadWriteLock>> FileSystemInterfaceAdapter::AcquireCacheInvalidationReadLock() {
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std::optional<std::shared_lock<os::ReadWriteLock>> lock;
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if (this->deep_retry_enabled) {
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lock.emplace(this->invalidation_lock);
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}
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return lock;
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}
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os::ReadWriteLock &FileSystemInterfaceAdapter::GetReadWriteLockForCacheInvalidation() {
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return this->invalidation_lock;
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}
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Result FileSystemInterfaceAdapter::CreateFile(const fssrv::sf::Path &path, s64 size, s32 option) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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R_UNLESS(size >= 0, fs::ResultInvalidSize());
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->CreateFile(normalizer.GetPath(), size, option);
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}
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Result FileSystemInterfaceAdapter::DeleteFile(const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->DeleteFile(normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::CreateDirectory(const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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R_UNLESS(strncmp(normalizer.GetPath(), "/", 2) != 0, fs::ResultPathAlreadyExists());
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return this->base_fs->CreateDirectory(normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::DeleteDirectory(const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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R_UNLESS(strncmp(normalizer.GetPath(), "/", 2) != 0, fs::ResultDirectoryNotDeletable());
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return this->base_fs->DeleteDirectory(normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::DeleteDirectoryRecursively(const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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R_UNLESS(strncmp(normalizer.GetPath(), "/", 2) != 0, fs::ResultDirectoryNotDeletable());
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return this->base_fs->DeleteDirectoryRecursively(normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::RenameFile(const fssrv::sf::Path &old_path, const fssrv::sf::Path &new_path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer old_normalizer(old_path.str);
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PathNormalizer new_normalizer(new_path.str);
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R_UNLESS(old_normalizer.GetPath() != nullptr, old_normalizer.GetResult());
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R_UNLESS(new_normalizer.GetPath() != nullptr, new_normalizer.GetResult());
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return this->base_fs->RenameFile(old_normalizer.GetPath(), new_normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::RenameDirectory(const fssrv::sf::Path &old_path, const fssrv::sf::Path &new_path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer old_normalizer(old_path.str);
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PathNormalizer new_normalizer(new_path.str);
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R_UNLESS(old_normalizer.GetPath() != nullptr, old_normalizer.GetResult());
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R_UNLESS(new_normalizer.GetPath() != nullptr, new_normalizer.GetResult());
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const bool is_subpath = fssystem::PathTool::IsSubPath(old_normalizer.GetPath(), new_normalizer.GetPath());
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R_UNLESS(!is_subpath, fs::ResultDirectoryNotRenamable());
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return this->base_fs->RenameFile(old_normalizer.GetPath(), new_normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::GetEntryType(ams::sf::Out<u32> out, const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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static_assert(sizeof(*out.GetPointer()) == sizeof(fs::DirectoryEntryType));
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return this->base_fs->GetEntryType(reinterpret_cast<fs::DirectoryEntryType *>(out.GetPointer()), normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::OpenFile(ams::sf::Out<std::shared_ptr<FileInterfaceAdapter>> out, const fssrv::sf::Path &path, u32 mode) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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std::unique_lock<fssystem::SemaphoreAdapter> open_count_semaphore;
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if (this->open_count_limited) {
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/* TODO: This calls into fssrv::FileSystemProxyImpl, which we don't have yet. */
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AMS_ASSERT(false);
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}
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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/* TODO: N retries on ResultDataCorrupted, we may want to eventually. */
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std::unique_ptr<fs::fsa::IFile> file;
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R_TRY(this->base_fs->OpenFile(&file, normalizer.GetPath(), static_cast<fs::OpenMode>(mode)));
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/* TODO: This is a hack to get the mitm API to work. Better solution? */
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const auto target_object_id = file->GetDomainObjectId();
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/* TODO: N creates an nn::fssystem::AsynchronousAccessFile here. */
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std::shared_ptr<FileSystemInterfaceAdapter> shared_this = this->shared_from_this();
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std::shared_ptr<FileInterfaceAdapter> file_intf = std::make_shared<FileInterfaceAdapter>(std::move(file), std::move(shared_this), std::move(open_count_semaphore));
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R_UNLESS(file_intf != nullptr, fs::ResultAllocationFailureInFileSystemInterfaceAdapter());
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out.SetValue(std::move(file_intf), target_object_id);
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return ResultSuccess();
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}
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Result FileSystemInterfaceAdapter::OpenDirectory(ams::sf::Out<std::shared_ptr<DirectoryInterfaceAdapter>> out, const fssrv::sf::Path &path, u32 mode) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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std::unique_lock<fssystem::SemaphoreAdapter> open_count_semaphore;
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if (this->open_count_limited) {
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/* TODO: This calls into fssrv::FileSystemProxyImpl, which we don't have yet. */
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AMS_ASSERT(false);
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}
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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/* TODO: N retries on ResultDataCorrupted, we may want to eventually. */
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std::unique_ptr<fs::fsa::IDirectory> dir;
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R_TRY(this->base_fs->OpenDirectory(&dir, normalizer.GetPath(), static_cast<fs::OpenDirectoryMode>(mode)));
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/* TODO: This is a hack to get the mitm API to work. Better solution? */
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const auto target_object_id = dir->GetDomainObjectId();
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std::shared_ptr<FileSystemInterfaceAdapter> shared_this = this->shared_from_this();
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std::shared_ptr<DirectoryInterfaceAdapter> dir_intf = std::make_shared<DirectoryInterfaceAdapter>(std::move(dir), std::move(shared_this), std::move(open_count_semaphore));
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R_UNLESS(dir_intf != nullptr, fs::ResultAllocationFailureInFileSystemInterfaceAdapter());
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out.SetValue(std::move(dir_intf), target_object_id);
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return ResultSuccess();
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}
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Result FileSystemInterfaceAdapter::Commit() {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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return this->base_fs->Commit();
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}
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Result FileSystemInterfaceAdapter::GetFreeSpaceSize(ams::sf::Out<s64> out, const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->GetFreeSpaceSize(out.GetPointer(), normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::GetTotalSpaceSize(ams::sf::Out<s64> out, const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->GetTotalSpaceSize(out.GetPointer(), normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::CleanDirectoryRecursively(const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->CleanDirectoryRecursively(normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::GetFileTimeStampRaw(ams::sf::Out<fs::FileTimeStampRaw> out, const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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PathNormalizer normalizer(path.str);
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R_UNLESS(normalizer.GetPath() != nullptr, normalizer.GetResult());
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return this->base_fs->GetFileTimeStampRaw(out.GetPointer(), normalizer.GetPath());
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}
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Result FileSystemInterfaceAdapter::QueryEntry(const ams::sf::OutBuffer &out_buf, const ams::sf::InBuffer &in_buf, s32 query_id, const fssrv::sf::Path &path) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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/* TODO: Nintendo does not normalize the path. Should we? */
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char *dst = reinterpret_cast< char *>(out_buf.GetPointer());
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const char *src = reinterpret_cast<const char *>(in_buf.GetPointer());
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return this->base_fs->QueryEntry(dst, out_buf.GetSize(), src, in_buf.GetSize(), static_cast<fs::fsa::QueryId>(query_id), path.str);
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}
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}
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