mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-24 13:31:12 +00:00
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2019-2020 Adubbz, Atmosphère-NX
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#include <stratosphere.hpp>
|
||
|
|
|
||
|
|
namespace ams::ncm {
|
||
|
|
|
||
|
|
Result PackageSystemDowngradeTask::PreCommit() {
|
||
|
|
constexpr size_t MaxContentMetas = 0x40;
|
||
|
|
|
||
|
|
auto &data = this->GetInstallData();
|
||
|
|
|
||
|
|
/* Count the number of content meta entries. */
|
||
|
|
s32 count;
|
||
|
|
R_TRY(data.Count(std::addressof(count)));
|
||
|
|
|
||
|
|
/* Iterate over content meta. */
|
||
|
|
for (s32 i = 0; i < count; i++) {
|
||
|
|
/* Obtain the content meta. */
|
||
|
|
InstallContentMeta content_meta;
|
||
|
|
R_TRY(data.Get(std::addressof(content_meta), i));
|
||
|
|
|
||
|
|
/* Create a reader. */
|
||
|
|
const auto reader = content_meta.GetReader();
|
||
|
|
const auto key = reader.GetKey();
|
||
|
|
|
||
|
|
/* Obtain a list of suitable storage ids. */
|
||
|
|
const auto storage_list = GetStorageList(this->GetInstallStorage());
|
||
|
|
|
||
|
|
/* Iterate over storage ids. */
|
||
|
|
for (s32 i = 0; i < storage_list.Count(); i++) {
|
||
|
|
/* Open the content meta database. */
|
||
|
|
ContentMetaDatabase meta_db;
|
||
|
|
if (R_FAILED(OpenContentMetaDatabase(std::addressof(meta_db), storage_list[i]))) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* List keys matching the type and id of the install content meta key. */
|
||
|
|
ncm::ContentMetaKey keys[MaxContentMetas];
|
||
|
|
const auto count = meta_db.ListContentMeta(keys, MaxContentMetas, key.type, { key.id });
|
||
|
|
|
||
|
|
/* Remove matching keys. */
|
||
|
|
for (auto i = 0; i < count.total; i++) {
|
||
|
|
meta_db.Remove(keys[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return ResultSuccess();
|
||
|
|
}
|
||
|
|
|
||
|
|
Result PackageSystemDowngradeTask::Commit() {
|
||
|
|
R_TRY(this->PreCommit());
|
||
|
|
return InstallTaskBase::Commit();
|
||
|
|
}
|
||
|
|
|
||
|
|
Result PackageSystemDowngradeTask::PrepareContentMetaIfLatest(const ContentMetaKey &key) {
|
||
|
|
/* Get and prepare install content meta info. We aren't concerned if our key is older. */
|
||
|
|
InstallContentMetaInfo install_content_meta_info;
|
||
|
|
R_TRY(this->GetInstallContentMetaInfo(std::addressof(install_content_meta_info), key));
|
||
|
|
return this->PrepareContentMeta(install_content_meta_info, key, std::nullopt);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|