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Diffstat (limited to 'src/mongo/db/traffic_recorder.h')
-rw-r--r-- | src/mongo/db/traffic_recorder.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/mongo/db/traffic_recorder.h b/src/mongo/db/traffic_recorder.h new file mode 100644 index 00000000000..8bd261cbfb4 --- /dev/null +++ b/src/mongo/db/traffic_recorder.h @@ -0,0 +1,79 @@ +/** + * Copyright (C) 2018-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 <boost/optional.hpp> + +#include "mongo/db/service_context.h" +#include "mongo/db/traffic_recorder_gen.h" +#include "mongo/platform/atomic_word.h" +#include "mongo/rpc/message.h" +#include "mongo/stdx/mutex.h" +#include "mongo/transport/session.h" + +namespace mongo { + +/** + * A service context level global which captures packet capture through the transport layer if it is + * enabled. The service is intended to be turned on and off via startRecordingTrafficTraffic and + * stopRecordingTrafficTraffic. + * + * The recording can have one recording running at a time and the intention is that observe() blocks + * callers for the least amount of time possible. + */ +class TrafficRecorder { +public: + static TrafficRecorder& get(ServiceContext* svc); + + TrafficRecorder(); + ~TrafficRecorder(); + + // Start and stop block until the associate operation has succeeded or failed + // + // On failure these methods throw + void start(const StartRecordingTraffic& options); + void stop(); + + void observe(const transport::SessionHandle& ts, Date_t now, const Message& message); + +private: + class TrafficRecorderSSS; + class Recording; + + std::shared_ptr<Recording> _getCurrentRecording() const; + + AtomicWord<bool> _shouldRecord; + + // The mutex only protects the last recording shared_ptr + mutable stdx::mutex _mutex; + std::shared_ptr<Recording> _recording; +}; + +} // namespace mongo |