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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 <string>
#include "mongo/base/status_with.h"
#include "mongo/db/logical_session_id_gen.h"
#include "mongo/stdx/unordered_set.h"
#include "mongo/util/uuid.h"
namespace mongo {
using TxnNumber = std::int64_t;
using StmtId = std::int32_t;
// Default value for unassigned statementId.
const StmtId kUninitializedStmtId = -1;
// Used as a substitute statementId for oplog entries that were truncated and lost.
const StmtId kIncompleteHistoryStmtId = -2;
const TxnNumber kUninitializedTxnNumber = -1;
class BSONObjBuilder;
class OperationContext;
// The constant kLocalLogicalSessionTimeoutMinutesDefault comes from the generated
// header logical_session_id_gen.h.
constexpr Minutes kLogicalSessionDefaultTimeout =
Minutes(kLocalLogicalSessionTimeoutMinutesDefault);
inline bool operator==(const LogicalSessionId& lhs, const LogicalSessionId& rhs) {
auto makeEqualityLens = [](const auto& lsid) { return std::tie(lsid.getId(), lsid.getUid()); };
return makeEqualityLens(lhs) == makeEqualityLens(rhs);
}
inline bool operator!=(const LogicalSessionId& lhs, const LogicalSessionId& rhs) {
return !(lhs == rhs);
}
inline bool operator==(const LogicalSessionRecord& lhs, const LogicalSessionRecord& rhs) {
return lhs.getId() == rhs.getId();
}
inline bool operator!=(const LogicalSessionRecord& lhs, const LogicalSessionRecord& rhs) {
return !(lhs == rhs);
}
LogicalSessionId makeLogicalSessionIdForTest();
LogicalSessionRecord makeLogicalSessionRecordForTest();
struct LogicalSessionIdHash {
std::size_t operator()(const LogicalSessionId& lsid) const {
return _hasher(lsid.getId());
}
private:
UUID::Hash _hasher;
};
struct LogicalSessionRecordHash {
std::size_t operator()(const LogicalSessionRecord& lsid) const {
return _hasher(lsid.getId().getId());
}
private:
UUID::Hash _hasher;
};
inline std::ostream& operator<<(std::ostream& s, const LogicalSessionId& lsid) {
return (s << lsid.getId() << " - " << lsid.getUid());
}
inline StringBuilder& operator<<(StringBuilder& s, const LogicalSessionId& lsid) {
return (s << lsid.getId().toString() << " - " << lsid.getUid().toString());
}
inline std::ostream& operator<<(std::ostream& s, const LogicalSessionFromClient& lsid) {
return (s << lsid.getId() << " - " << (lsid.getUid() ? lsid.getUid()->toString() : ""));
}
inline StringBuilder& operator<<(StringBuilder& s, const LogicalSessionFromClient& lsid) {
return (s << lsid.getId() << " - " << (lsid.getUid() ? lsid.getUid()->toString() : ""));
}
/**
* An alias for sets of session ids.
*/
using LogicalSessionIdSet = stdx::unordered_set<LogicalSessionId, LogicalSessionIdHash>;
using LogicalSessionRecordSet = stdx::unordered_set<LogicalSessionRecord, LogicalSessionRecordHash>;
template <typename T>
using LogicalSessionIdMap = stdx::unordered_map<LogicalSessionId, T, LogicalSessionIdHash>;
} // namespace mongo
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