mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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66 lines
2.7 KiB
C++
66 lines
2.7 KiB
C++
/*
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* Copyright (c) 2019-2020 Adubbz, 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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#pragma once
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#include <stratosphere.hpp>
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namespace ams::ncm {
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class ContentMetaDatabaseImplBase : public IContentMetaDatabase {
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NON_COPYABLE(ContentMetaDatabaseImplBase);
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NON_MOVEABLE(ContentMetaDatabaseImplBase);
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protected:
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using ContentMetaKeyValueStore = ams::kvdb::MemoryKeyValueStore<ContentMetaKey>;
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protected:
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ContentMetaKeyValueStore *kvs;
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char mount_name[16];
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bool disabled;
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protected:
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ContentMetaDatabaseImplBase(ContentMetaKeyValueStore *kvs) : kvs(kvs), disabled(false) { /* ... */ }
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ContentMetaDatabaseImplBase(ContentMetaKeyValueStore *kvs, const char *mount_name) : ContentMetaDatabaseImplBase(kvs) {
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std::strcpy(this->mount_name, mount_name);
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}
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protected:
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Result EnsureEnabled() const {
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R_UNLESS(!this->disabled, ncm::ResultInvalidContentMetaDatabase());
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return ResultSuccess();
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}
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Result FindContentMetaKeyValue(ContentMetaKeyValueStore::Entry **out_entry, const ContentMetaKey &key) const {
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const auto it = this->kvs->lower_bound(key);
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R_UNLESS(it != this->kvs->end(), ncm::ResultContentMetaNotFound());
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R_UNLESS(it->GetKey().id == key.id, ncm::ResultContentMetaNotFound());
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*out_entry = it;
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return ResultSuccess();
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}
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Result GetContentMetaSize(size_t *out, const ContentMetaKey &key) const {
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R_TRY_CATCH(this->kvs->GetValueSize(out, key)) {
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R_CONVERT(kvdb::ResultKeyNotFound, ncm::ResultContentMetaNotFound())
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} R_END_TRY_CATCH;
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return ResultSuccess();
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}
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Result GetContentMetaPointer(const void **out_value_ptr, size_t *out_size, const ContentMetaKey &key) const {
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R_TRY(this->GetContentMetaSize(out_size, key));
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return this->kvs->GetValuePointer(reinterpret_cast<const ContentMetaHeader **>(out_value_ptr), key);
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}
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};
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}
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