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authorLucas de Castro Borges <lucas@gnuabordo.com.br>2025-02-11 15:07:35 -0300
committerLucas de Castro Borges <lucas@gnuabordo.com.br>2025-02-11 15:07:35 -0300
commit4cb8841196d0625dfa3825aa326f071cd27c7b8b (patch)
tree1682a647d4463397c119183369ae6f750d5fdcff /src/mongo/executor/connection_pool_controllers.h
parentaa03c6362cbaa767638e6eed9b031d86dd2643d1 (diff)
parent8f0827553e09872941945a093b647a4211a9db7f (diff)
Update upstream source from tag 'upstream/6.0.0'master
Update to upstream version '6.0.0' with Debian dir 5604a80ec1c96ca76f25f40d78e6ef855abec322
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1 files changed, 0 insertions, 107 deletions
diff --git a/src/mongo/executor/connection_pool_controllers.h b/src/mongo/executor/connection_pool_controllers.h
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-/**
- * 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 <functional>
-#include <string>
-
-#include "mongo/base/string_data.h"
-#include "mongo/executor/connection_pool.h"
-#include "mongo/executor/connection_pool_stats.h"
-#include "mongo/platform/mutex.h"
-#include "mongo/stdx/unordered_map.h"
-#include "mongo/util/duration.h"
-#include "mongo/util/net/hostandport.h"
-
-namespace mongo::executor {
-/**
- * This file is intended for simple implementations of ConnectionPool::ControllerInterface that
- * might be shared between different libraries. Currently, it contains only one such implementation,
- * the DyamicLimitController below.
- */
-
-/**
- * A simple controller that allows for the maximum and minimum pool size to have dynamic values.
- * At construction, provide callables that return the current maximum and minimum sizes to be used
- * by the pool.
- *
- * Currently, the callables that provide the max and min are stateless and don't inspect any data
- * about the pool. The other pool parameters (maxConnecting, host/pending/refresh timeouts) are
- * simply taken from the Optoins the relevant ConnectionPool was started with. However, this
- * type is intended to be easily extensible to add these features in the future if needed.
- */
-class DynamicLimitController final : public ConnectionPool::ControllerInterface {
-public:
- DynamicLimitController(std::function<size_t()> minLoader,
- std::function<size_t()> maxLoader,
- StringData name)
- : _minLoader(std::move(minLoader)),
- _maxLoader(std::move(maxLoader)),
- _name(std::move(name)) {}
-
- void init(ConnectionPool* parent) override;
-
- void addHost(PoolId id, const HostAndPort& host) override;
- HostGroupState updateHost(PoolId id, const HostState& stats) override;
- void removeHost(PoolId id) override;
-
- ConnectionControls getControls(PoolId id) override;
-
- Milliseconds hostTimeout() const override {
- return getPoolOptions().hostTimeout;
- }
-
- Milliseconds pendingTimeout() const override {
- return getPoolOptions().refreshTimeout;
- }
-
- Milliseconds toRefreshTimeout() const override {
- return getPoolOptions().refreshRequirement;
- }
-
- StringData name() const override {
- return _name;
- }
-
- void updateConnectionPoolStats(ConnectionPoolStats* cps) const override {}
-
-private:
- struct PoolData {
- HostAndPort host;
- size_t target = 0;
- };
-
- std::function<size_t()> _minLoader;
- std::function<size_t()> _maxLoader;
- std::string _name;
- Mutex _mutex = MONGO_MAKE_LATCH("DynamicLimitController::_mutex");
- stdx::unordered_map<PoolId, PoolData> _poolData;
-};
-} // namespace mongo::executor