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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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kReplication
#include "mongo/platform/basic.h"
#include "mongo/db/repl/repl_client_info.h"
#include "mongo/db/client.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/repl/replication_coordinator.h"
#include "mongo/util/decorable.h"
#include "mongo/util/log.h"
namespace mongo {
namespace repl {
const Client::Decoration<ReplClientInfo> ReplClientInfo::forClient =
Client::declareDecoration<ReplClientInfo>();
void ReplClientInfo::setLastOp(const OpTime& ot) {
invariant(ot >= _lastOp);
_lastOp = ot;
}
void ReplClientInfo::setLastOpToSystemLastOpTime(OperationContext* opCtx) {
auto replCoord = repl::ReplicationCoordinator::get(opCtx->getServiceContext());
if (replCoord->isReplEnabled() && opCtx->writesAreReplicated()) {
auto systemOpTime = replCoord->getMyLastAppliedOpTime();
// If the system optime has gone backwards, that must mean that there was a rollback.
// This is safe, but the last op for a Client should never go backwards, so just leave
// the last op for this Client as it was.
if (systemOpTime >= _lastOp) {
_lastOp = systemOpTime;
} else {
log() << "Not setting the last OpTime for this Client from " << _lastOp
<< " to the current system time of " << systemOpTime
<< " as that would be moving the OpTime backwards. This should only happen if "
"there was a rollback recently";
}
}
}
} // namespace repl
} // namespace mongo
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