mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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89 lines
3.7 KiB
C++
89 lines
3.7 KiB
C++
/*
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* Copyright (c) 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 "fsa/fs_mount_utils.hpp"
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namespace ams::fs::impl {
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namespace {
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Result OpenDataStorageByDataId(std::unique_ptr<ams::fs::IStorage> *out, ncm::DataId data_id, ncm::StorageId storage_id) {
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/* Open storage using libnx bindings. */
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::FsStorage s;
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R_TRY_CATCH(fsOpenDataStorageByDataId(std::addressof(s), data_id.value, static_cast<::NcmStorageId>(storage_id))) {
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R_CONVERT(ncm::ResultContentMetaNotFound, fs::ResultTargetNotFound());
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} R_END_TRY_CATCH;
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auto storage = std::make_unique<RemoteStorage>(s);
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R_UNLESS(storage != nullptr, fs::ResultAllocationFailureInDataA());
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*out = std::move(storage);
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return ResultSuccess();
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}
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Result MountDataImpl(const char *name, ncm::DataId data_id, ncm::StorageId storage_id, void *cache_buffer, size_t cache_size, bool use_cache, bool use_data_cache, bool use_path_cache) {
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std::unique_ptr<fs::IStorage> storage;
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R_TRY(OpenDataStorageByDataId(std::addressof(storage), data_id, storage_id));
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auto fs = std::make_unique<RomFsFileSystem>();
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R_UNLESS(fs != nullptr, fs::ResultAllocationFailureInDataB());
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R_TRY(fs->Initialize(std::move(storage), cache_buffer, cache_size, use_cache));
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return fsa::Register(name, std::move(fs), nullptr, use_data_cache, use_path_cache, false);
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}
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}
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Result QueryMountDataCacheSize(size_t *out, ncm::DataId data_id, ncm::StorageId storage_id) {
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R_UNLESS(out != nullptr, fs::ResultNullptrArgument());
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std::unique_ptr<fs::IStorage> storage;
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R_TRY(OpenDataStorageByDataId(std::addressof(storage), data_id, storage_id));
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size_t size = 0;
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R_TRY(RomFsFileSystem::GetRequiredWorkingMemorySize(std::addressof(size), storage.get()));
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constexpr size_t MinimumCacheSize = 32;
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*out = std::max(size, MinimumCacheSize);
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return ResultSuccess();
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}
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Result MountData(const char *name, ncm::DataId data_id, ncm::StorageId storage_id) {
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/* Validate the mount name. */
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R_TRY(impl::CheckMountName(name));
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return MountDataImpl(name, data_id, storage_id, nullptr, 0, false, false, false);
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}
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Result MountData(const char *name, ncm::DataId data_id, ncm::StorageId storage_id, void *cache_buffer, size_t cache_size) {
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/* Validate the mount name. */
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R_TRY(impl::CheckMountName(name));
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R_UNLESS(cache_buffer != nullptr, fs::ResultNullptrArgument());
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return MountDataImpl(name, data_id, storage_id, cache_buffer, cache_size, true, false, false);
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}
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Result MountData(const char *name, ncm::DataId data_id, ncm::StorageId storage_id, void *cache_buffer, size_t cache_size, bool use_data_cache, bool use_path_cache) {
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/* Validate the mount name. */
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R_TRY(impl::CheckMountName(name));
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R_UNLESS(cache_buffer != nullptr, fs::ResultNullptrArgument());
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return MountDataImpl(name, data_id, storage_id, cache_buffer, cache_size, true, use_data_cache, use_path_cache);
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}
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}
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