mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-14 09:06:35 +00:00
94 lines
3.7 KiB
C++
94 lines
3.7 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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StorageInterfaceAdapter::StorageInterfaceAdapter(fs::IStorage *storage) : base_storage(storage) {
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/* ... */
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}
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StorageInterfaceAdapter::StorageInterfaceAdapter(std::unique_ptr<fs::IStorage> storage) : base_storage(storage.release()) {
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/* ... */
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}
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StorageInterfaceAdapter::StorageInterfaceAdapter(std::shared_ptr<fs::IStorage> &&storage) : base_storage(std::move(storage)) {
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/* ... */
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}
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StorageInterfaceAdapter::~StorageInterfaceAdapter() {
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/* ... */
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}
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std::optional<std::shared_lock<os::ReadWriteLock>> StorageInterfaceAdapter::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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Result StorageInterfaceAdapter::Read(s64 offset, const ams::sf::OutNonSecureBuffer &buffer, s64 size) {
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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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return this->base_storage->Read(offset, buffer.GetPointer(), size);
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}
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Result StorageInterfaceAdapter::Write(s64 offset, const ams::sf::InNonSecureBuffer &buffer, s64 size) {
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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->AcquireCacheInvalidationReadLock();
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return this->base_storage->Write(offset, buffer.GetPointer(), size);
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}
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Result StorageInterfaceAdapter::Flush() {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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return this->base_storage->Flush();
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}
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Result StorageInterfaceAdapter::SetSize(s64 size) {
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R_UNLESS(size >= 0, fs::ResultInvalidSize());
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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return this->base_storage->SetSize(size);
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}
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Result StorageInterfaceAdapter::GetSize(ams::sf::Out<s64> out) {
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auto read_lock = this->AcquireCacheInvalidationReadLock();
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return this->base_storage->GetSize(out.GetPointer());
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}
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Result StorageInterfaceAdapter::OperateRange(ams::sf::Out<fs::StorageQueryRangeInfo> 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->AcquireCacheInvalidationReadLock();
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fs::StorageQueryRangeInfo info;
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R_TRY(this->base_storage->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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}
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