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Diffstat (limited to 'src/mongo/util/static_observer.h')
-rw-r--r-- | src/mongo/util/static_observer.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/mongo/util/static_observer.h b/src/mongo/util/static_observer.h new file mode 100644 index 00000000000..eec10d52437 --- /dev/null +++ b/src/mongo/util/static_observer.h @@ -0,0 +1,45 @@ +/* Copyright 2015 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 <http://www.gnu.org/licenses/>. + * + * 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. + */ + +#pragma once + +#include "mongo/base/disallow_copying.h" + +namespace mongo { + + // If you create a local static instance of this class, that instance will be destroyed + // before all global static objects are destroyed, so _destroyingStatics will be set + // to true before the global static variables are destroyed. + class StaticObserver { + MONGO_DISALLOW_COPYING(StaticObserver); + public: + static bool _destroyingStatics; + StaticObserver() = default; + ~StaticObserver() { _destroyingStatics = true; } + }; + +} // namespace mongo |