1 2 /** 3 * Copyright (C) 2018-present MongoDB, Inc. 4 * 5 * This program is free software: you can redistribute it and/or modify 6 * it under the terms of the Server Side Public License, version 1, 7 * as published by MongoDB, Inc. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * Server Side Public License for more details. 13 * 14 * You should have received a copy of the Server Side Public License 15 * along with this program. If not, see 16 * <http://www.mongodb.com/licensing/server-side-public-license>. 17 * 18 * As a special exception, the copyright holders give permission to link the 19 * code of portions of this program with the OpenSSL library under certain 20 * conditions as described in each individual source file and distribute 21 * linked combinations including the program with the OpenSSL library. You 22 * must comply with the Server Side Public License in all respects for 23 * all of the code used other than as permitted herein. If you modify file(s) 24 * with this exception, you may extend this exception to your version of the 25 * file(s), but you are not obligated to do so. If you do not wish to do so, 26 * delete this exception statement from your version. If you delete this 27 * exception statement from all source files in the program, then also delete 28 * it in the license file. 29 */ 30 31 #pragma once 32 33 #include "mongo/stdx/unordered_map.h" 34 #include "mongo/util/net/hostandport.h" 35 36 namespace mongo { 37 namespace executor { 38 39 /** 40 * Holds connection information for a specific pool or remote host. These objects are maintained by 41 * a parent ConnectionPoolStats object and should not need to be created directly. 42 */ 43 struct ConnectionStatsPer { 44 ConnectionStatsPer(size_t nInUse, size_t nAvailable, size_t nCreated, size_t nRefreshing); 45 46 ConnectionStatsPer(); 47 48 ConnectionStatsPer& operator+=(const ConnectionStatsPer& other); 49 50 size_t inUse = 0u; 51 size_t available = 0u; 52 size_t created = 0u; 53 size_t refreshing = 0u; 54 }; 55 56 /** 57 * Aggregates connection information for the connPoolStats command. Connection pools should 58 * use the updateStatsForHost() method to append their host-specific information to this object. 59 * Total connection counts will then be updated accordingly. 60 */ 61 struct ConnectionPoolStats { 62 void updateStatsForHost(std::string pool, HostAndPort host, ConnectionStatsPer newStats); 63 64 void appendToBSON(mongo::BSONObjBuilder& result, bool forFTDC = false); 65 66 size_t totalInUse = 0u; 67 size_t totalAvailable = 0u; 68 size_t totalCreated = 0u; 69 size_t totalRefreshing = 0u; 70 71 stdx::unordered_map<std::string, ConnectionStatsPer> statsByPool; 72 stdx::unordered_map<HostAndPort, ConnectionStatsPer> statsByHost; 73 stdx::unordered_map<std::string, stdx::unordered_map<HostAndPort, ConnectionStatsPer>> 74 statsByPoolHost; 75 }; 76 77 } // namespace executor 78 } // namespace mongo 79