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/**
* Copyright (C) 2020-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/s/mongos_server_parameters.h"
#include "mongo/base/status.h"
#include "mongo/s/mongos_server_parameters_gen.h"
#include "mongo/util/str.h"
namespace mongo {
namespace {
std::string toReadHedgingModeString(ReadHedgingMode readHedgingMode) {
return readHedgingMode == ReadHedgingMode::kOn ? "on" : "off";
}
} // namespace
AtomicWord<ReadHedgingMode> gReadHedgingMode{ReadHedgingMode::kOn};
void HedgingModeServerParameter::append(OperationContext*,
BSONObjBuilder& builder,
const std::string& name) {
builder.append(name, toReadHedgingModeString(gReadHedgingMode.load()));
}
Status HedgingModeServerParameter::setFromString(const std::string& modeStr) {
if (modeStr == "on") {
gReadHedgingMode.store(ReadHedgingMode::kOn);
} else if (modeStr == "off") {
gReadHedgingMode.store(ReadHedgingMode::kOff);
} else {
return Status{ErrorCodes::BadValue,
str::stream() << "Unrecognized readHedgingMode '" << modeStr << "'"};
}
return Status::OK();
}
} // namespace mongo
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