diff options
Diffstat (limited to 'src/mongo/db/query/query_shape/shape_helpers.h')
| -rw-r--r-- | src/mongo/db/query/query_shape/shape_helpers.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/mongo/db/query/query_shape/shape_helpers.h b/src/mongo/db/query/query_shape/shape_helpers.h deleted file mode 100644 index 4d0fadb4a47..00000000000 --- a/src/mongo/db/query/query_shape/shape_helpers.h +++ /dev/null @@ -1,101 +0,0 @@ -/** - * Copyright (C) 2023-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. - */ - -#pragma once - -#include "mongo/bson/simple_bsonobj_comparator.h" -#include "mongo/db/query/query_shape/query_shape.h" -#include "mongo/db/query/query_shape/serialization_options.h" - -namespace mongo::shape_helpers { - -int64_t inline optionalObjSize(boost::optional<BSONObj> optionalObj) { - if (!optionalObj) - return 0; - return optionalObj->objsize(); -} - -template <typename T> -int64_t optionalSize(boost::optional<T> optionalVal) { - if (!optionalVal) - return 0; - return optionalVal->size(); -} - -template <typename T> -std::function<size_t(size_t, const T&)> sizeAccumulatorFunc() { - MONGO_UNREACHABLE; // Don't know how to compute the size of this template type. -}; - -template <> -inline std::function<size_t(size_t, const BSONObj&)> sizeAccumulatorFunc<BSONObj>() { - return [](size_t total, const BSONObj& obj) { - return total + sizeof(BSONObj) + static_cast<size_t>(obj.objsize()); - }; -} - -template <> -inline std::function<size_t(size_t, const NamespaceString&)> -sizeAccumulatorFunc<NamespaceString>() { - return [](size_t total, const NamespaceString& nss) { - // For each element, we have to track the size of the - // nss as well as the size allocated by the nss. It would be - // ideal to be able to ask the underlying namespace string for - // its capacity, but it's not something we have access to. - // Further, namespace strings appear to shrink to fit (i.e - // resize to correct size), so it may not be necessary. Should - // we also try to consider short string optimization? At the - // very least, the current approach gives us a good upper bound - // memory usage (assuming shrink to fit). - return total + sizeof(nss) + nss.size(); - }; -} - -template <typename Container> -size_t containerSize(const Container& container) { - return std::accumulate(container.begin(), - container.end(), - 0, - sizeAccumulatorFunc<typename Container::value_type>()); -} - -/** - * Serializes the given 'hintObj' in accordance with the options. Assumes the hint is correct and - * contains field names. It is possible that this hint doesn't actually represent an index, but we - * can't detect that here. - */ -BSONObj extractHintShape(BSONObj hintObj, const SerializationOptions& opts); -BSONObj extractMinOrMaxShape(BSONObj obj, const SerializationOptions& opts); - -NamespaceStringOrUUID parseNamespaceShape(BSONElement cmdNsElt); -void appendNamespaceShape(BSONObjBuilder& bob, - const NamespaceString& nss, - const SerializationOptions& opts); - -} // namespace mongo::shape_helpers |
