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/**
* Copyright (C) 2018 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kStorage
#include "mongo/db/storage/biggie/biggie_kv_engine.h"
#include "mongo/base/disallow_copying.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/snapshot_window_options.h"
#include "mongo/db/storage/biggie/biggie_recovery_unit.h"
#include "mongo/db/storage/key_string.h"
#include "mongo/db/storage/record_store.h"
#include "mongo/db/storage/sorted_data_interface.h"
#include "mongo/platform/basic.h"
#include "mongo/stdx/memory.h"
#include "mongo/util/log.h"
namespace mongo {
namespace biggie {
mongo::RecoveryUnit* KVEngine::newRecoveryUnit() {
return new RecoveryUnit(this, nullptr);
}
void KVEngine::setCachePressureForTest(int pressure) {
// TODO : implement.
}
Status KVEngine::createRecordStore(OperationContext* opCtx,
StringData ns,
StringData ident,
const CollectionOptions& options) {
log() << "Creating Ident in KVEngine with ident: " << ident;
_idents.insert(ident);
return Status::OK();
}
std::unique_ptr<::mongo::RecordStore> KVEngine::getRecordStore(OperationContext* opCtx,
StringData ns,
StringData ident,
const CollectionOptions& options) {
// TODO: deal with options.
return std::make_unique<RecordStore>(ns, ident);
}
void KVEngine::setMaster_inlock(std::unique_ptr<StringStore> newMaster) {
_master.reset(newMaster.release());
}
std::shared_ptr<StringStore> KVEngine::getMaster() const {
// TODO : later on this needs to be changed to use their copy function.
stdx::lock_guard<stdx::mutex> lk(_masterLock);
return _master;
}
std::shared_ptr<StringStore> KVEngine::getMaster_inlock() const {
return _master;
}
Status KVEngine::createSortedDataInterface(OperationContext* opCtx,
StringData ident,
const IndexDescriptor* desc) {
return Status::OK(); // I don't think we actually need to do anything here
}
mongo::SortedDataInterface* KVEngine::getSortedDataInterface(OperationContext* opCtx,
StringData ident,
const IndexDescriptor* desc) {
return new SortedDataInterface(Ordering::make(desc->keyPattern()),
desc->unique(),
ident,
desc->parentNS(),
desc->indexName());
}
class EmptyRecordCursor final : public SeekableRecordCursor {
public:
boost::optional<Record> next() final {
return {};
}
boost::optional<Record> seekExact(const RecordId& id) final {
return {};
}
void save() final {}
bool restore() final {
return true;
}
void detachFromOperationContext() final {}
void reattachToOperationContext(OperationContext* opCtx) final {}
};
} // namespace biggie
} // namespace mongo
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