From 89e48e22ba667caad7223eaa2b6ee92868323268 Mon Sep 17 00:00:00 2001 From: Samantha Ritter Date: Fri, 2 Jun 2017 13:57:56 -0400 Subject: SERVER-28300 Implement mock libraries to test logical session cache --- src/mongo/db/sessions_collection_mock.cpp | 158 ++++++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 src/mongo/db/sessions_collection_mock.cpp (limited to 'src/mongo/db/sessions_collection_mock.cpp') diff --git a/src/mongo/db/sessions_collection_mock.cpp b/src/mongo/db/sessions_collection_mock.cpp new file mode 100644 index 00000000000..a56f6dec21a --- /dev/null +++ b/src/mongo/db/sessions_collection_mock.cpp @@ -0,0 +1,158 @@ +/** + * Copyright (C) 2017 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 . + * + * 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. + */ + +#include "mongo/db/sessions_collection_mock.h" +#include "mongo/platform/basic.h" +#include "mongo/stdx/functional.h" + +namespace mongo { + +MockSessionsCollectionImpl::MockSessionsCollectionImpl() + : _sessions(), + _fetch(stdx::bind(&MockSessionsCollectionImpl::_fetchRecord, this, stdx::placeholders::_1)), + _insert(stdx::bind(&MockSessionsCollectionImpl::_insertRecord, this, stdx::placeholders::_1)), + _refresh( + stdx::bind(&MockSessionsCollectionImpl::_refreshSessions, this, stdx::placeholders::_1)), + _remove( + stdx::bind(&MockSessionsCollectionImpl::_removeRecords, this, stdx::placeholders::_1)) {} + +void MockSessionsCollectionImpl::setFetchHook(FetchHook hook) { + _fetch = std::move(hook); +} + +void MockSessionsCollectionImpl::setInsertHook(InsertHook hook) { + _insert = std::move(hook); +} + +void MockSessionsCollectionImpl::setRefreshHook(RefreshHook hook) { + _refresh = std::move(hook); +} + +void MockSessionsCollectionImpl::setRemoveHook(RemoveHook hook) { + _remove = std::move(hook); +} + +void MockSessionsCollectionImpl::clearHooks() { + _fetch = stdx::bind(&MockSessionsCollectionImpl::_fetchRecord, this, stdx::placeholders::_1); + _insert = stdx::bind(&MockSessionsCollectionImpl::_insertRecord, this, stdx::placeholders::_1); + _refresh = + stdx::bind(&MockSessionsCollectionImpl::_refreshSessions, this, stdx::placeholders::_1); + _remove = stdx::bind(&MockSessionsCollectionImpl::_removeRecords, this, stdx::placeholders::_1); +} + +StatusWith MockSessionsCollectionImpl::fetchRecord(LogicalSessionId lsid) { + return _fetch(std::move(lsid)); +} + +Status MockSessionsCollectionImpl::insertRecord(LogicalSessionRecord record) { + return _insert(std::move(record)); +} + +MockSessionsCollectionImpl::SessionList MockSessionsCollectionImpl::refreshSessions( + SessionList sessions) { + return _refresh(std::move(sessions)); +} + +void MockSessionsCollectionImpl::removeRecords(SessionList sessions) { + _remove(std::move(sessions)); +} + +void MockSessionsCollectionImpl::add(LogicalSessionRecord record) { + stdx::unique_lock lk(_mutex); + _sessions.insert({record.getLsid(), std::move(record)}); +} + +void MockSessionsCollectionImpl::remove(LogicalSessionId lsid) { + stdx::unique_lock lk(_mutex); + _sessions.erase(lsid); +} + +bool MockSessionsCollectionImpl::has(LogicalSessionId lsid) { + stdx::unique_lock lk(_mutex); + return _sessions.find(lsid) != _sessions.end(); +} + +void MockSessionsCollectionImpl::clearSessions() { + stdx::unique_lock lk(_mutex); + _sessions.clear(); +} + +const MockSessionsCollectionImpl::SessionMap& MockSessionsCollectionImpl::sessions() const { + return _sessions; +} + +StatusWith MockSessionsCollectionImpl::_fetchRecord(LogicalSessionId lsid) { + stdx::unique_lock lk(_mutex); + + // If we do not have this record, return an error + auto it = _sessions.find(lsid); + if (it == _sessions.end()) { + return {ErrorCodes::NoSuchSession, "No matching record in the sessions collection"}; + } + + return it->second; +} + +Status MockSessionsCollectionImpl::_insertRecord(LogicalSessionRecord record) { + stdx::unique_lock lk(_mutex); + auto res = _sessions.insert({record.getLsid(), std::move(record)}); + + // We should never try to insert the same record twice. In theory this could + // happen because of a UUID conflict. + if (!res.second) { + return {ErrorCodes::DuplicateSession, "Session already exists in the sessions collection"}; + } + + return Status::OK(); +} + +MockSessionsCollectionImpl::SessionList MockSessionsCollectionImpl::_refreshSessions( + SessionList sessions) { + SessionList notFound{}; + + { + stdx::unique_lock lk(_mutex); + for (auto& lsid : sessions) { + auto it = _sessions.find(lsid); + if (it == _sessions.end()) { + notFound.push_back(lsid); + } + } + } + + return notFound; +} + +void MockSessionsCollectionImpl::_removeRecords(SessionList sessions) { + stdx::unique_lock lk(_mutex); + for (auto& lsid : sessions) { + _sessions.erase(lsid); + } +} + +} // namespace mongo -- cgit v1.2.1