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/**
* Copyright (C) 2021-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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.
*/
#include "mongo/db/query/plan_cache_invalidator.h"
#include "mongo/db/query/sbe_plan_cache.h"
#include "mongo/logv2/log.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kQuery
namespace mongo {
namespace {
const auto getCollectionVersionNumber =
SharedCollectionDecorations::declareDecoration<AtomicWord<size_t>>();
} // namespace
PlanCacheInvalidator::PlanCacheInvalidator(const CollectionPtr& collection,
ServiceContext* serviceContext)
: _version{getCollectionVersionNumber(collection->getSharedDecorations()).fetchAndAdd(1u)},
_uuid{collection->uuid()},
_serviceContext{serviceContext} {}
PlanCacheInvalidator::~PlanCacheInvalidator() {
try {
clearPlanCache();
} catch (const DBException& ex) {
LOGV2_WARNING(6006610, "DBException occured on clearing plan cache", "exception"_attr = ex);
} catch (const std::exception& ex) {
LOGV2_WARNING(
6006611, "Exception occured on clearing plan cache", "message"_attr = ex.what());
} catch (...) {
LOGV2_WARNING(6006612, "Unknown exception occured on clearing plan cache");
}
}
void PlanCacheInvalidator::clearPlanCache() const {
// Some unit tests cannot properly initialize CollectionQueryInfo but rely on it partially
// initialized to make PlanCacheKeys.
if (_serviceContext && _uuid) {
sbe::clearPlanCacheEntriesWith(
_serviceContext, *_uuid, _version, true /*matchSecondaryCollections*/);
}
}
} // namespace mongo
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