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/**
* 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.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/vector_clock_metadata_hook.h"
#include <memory>
#include "mongo/db/operation_time_tracker.h"
#include "mongo/db/vector_clock.h"
namespace mongo {
namespace rpc {
namespace {
const char kOperationTimeFieldName[] = "operationTime";
}
VectorClockMetadataHook::VectorClockMetadataHook(ServiceContext* service) : _service(service) {}
Status VectorClockMetadataHook::writeRequestMetadata(OperationContext* opCtx,
BSONObjBuilder* metadataBob) {
VectorClock::get(_service)->gossipOut(opCtx, metadataBob, true /* forceInternal */);
return Status::OK();
}
Status VectorClockMetadataHook::readReplyMetadata(OperationContext* opCtx,
StringData replySource,
const BSONObj& metadataObj) {
if (!VectorClock::get(_service)->isEnabled()) {
return Status::OK();
}
if (opCtx) {
auto timeTracker = OperationTimeTracker::get(opCtx);
auto operationTime = metadataObj[kOperationTimeFieldName];
if (!operationTime.eoo()) {
tassert(4457010,
"operationTime must be a timestamp if present",
operationTime.type() == BSONType::bsonTimestamp);
timeTracker->updateOperationTime(LogicalTime(operationTime.timestamp()));
}
}
VectorClock::get(_service)->gossipIn(
opCtx, metadataObj, false /* couldBeUnauthorized */, transport::Session::kInternalClient);
return Status::OK();
}
} // namespace rpc
} // namespace mongo
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