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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.
*/
#pragma once
#include "mongo/db/logical_time.h"
#include "mongo/db/time_proof_service.h"
#include <string>
namespace mongo {
/**
* The SignedLogicalTime class is a pair of value i.e. time and a signature i.e. _proof
* The class is immutable and is used to hold the cryptographically protected LogicalTime.
*/
class SignedLogicalTime {
public:
using TimeProof = TimeProofService::TimeProof;
SignedLogicalTime() = default;
explicit SignedLogicalTime(LogicalTime time, long long keyId)
: _time(std::move(time)), _keyId(keyId) {}
explicit SignedLogicalTime(LogicalTime time, TimeProof proof, long long keyId)
: _time(std::move(time)), _proof(std::move(proof)), _keyId(keyId) {}
LogicalTime getTime() const {
return _time;
}
boost::optional<TimeProof> getProof() const {
return _proof;
}
long long getKeyId() const {
return _keyId;
}
std::string toString() const;
static const SignedLogicalTime kUninitialized;
private:
LogicalTime _time;
boost::optional<TimeProof> _proof;
long long _keyId{0};
};
} // namespace mongo
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