Atmosphere/stratosphere/ncm/source/ncm_content_meta_database_impl_base.hpp
2020-03-02 23:41:48 +11:00

53 lines
2.1 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/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::ncm {
class ContentMetaDatabaseImplBase : public IContentMetaDatabase {
NON_COPYABLE(ContentMetaDatabaseImplBase);
NON_MOVEABLE(ContentMetaDatabaseImplBase);
protected:
using ContentMetaKeyValueStore = ams::kvdb::MemoryKeyValueStore<ContentMetaKey>;
protected:
ContentMetaKeyValueStore *kvs;
char mount_name[16];
bool disabled;
protected:
ContentMetaDatabaseImplBase(ContentMetaKeyValueStore *kvs) : kvs(kvs), disabled(false) { /* ... */ }
ContentMetaDatabaseImplBase(ContentMetaKeyValueStore *kvs, const char *mount_name) : ContentMetaDatabaseImplBase(kvs) {
std::strcpy(this->mount_name, mount_name);
}
protected:
Result EnsureEnabled() {
R_UNLESS(!this->disabled, ncm::ResultInvalidContentMetaDatabase());
return ResultSuccess();
}
Result FindContentMetaKeyValue(ContentMetaKeyValueStore::Entry **out_entry, const ContentMetaKey &key) {
const auto it = this->kvs->lower_bound(key);
R_UNLESS(it != this->kvs->end(), ncm::ResultContentMetaNotFound());
R_UNLESS(it->GetKey().id == key.id, ncm::ResultContentMetaNotFound());
*out_entry = it;
return ResultSuccess();
}
};
}