foundationdb/fdbclient/ClientKnobCollection.h
2021-06-02 23:40:52 -07:00

73 lines
2.6 KiB
C++

/*
* ClientKnobCollection.h
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
class ClientKnobCollection : public IKnobCollection {
FlowKnobs flowKnobs;
ClientKnobs clientKnobs;
public:
ClientKnobCollection(bool randomize = false, bool isSimulated = false) { initialize(randomize, isSimulated); }
void initialize(bool randomize = false, bool isSimulated = false) override {
flowKnobs.initialize(randomize, isSimulated);
clientKnobs.initialize(randomize);
}
void reset(bool randomize = false, bool isSimulated = false) override {
flowKnobs.reset(randomize, isSimulated);
clientKnobs.reset(randomize);
}
FlowKnobs const& getFlowKnobs() const override { return flowKnobs; }
FlowKnobs& getMutableFlowKnobs() { return flowKnobs; }
ClientKnobs const& getClientKnobs() const override { return clientKnobs; }
ClientKnobs& getMutableClientKnobs() { return clientKnobs; }
ServerKnobs const& getServerKnobs() const override { throw internal_error(); }
TestKnobs const& getTestKnobs() const override { throw internal_error(); }
KnobValue parseKnobValue(std::string const& knobName, std::string const& knobValue) const override {
auto parsedKnobValue = flowKnobs.parseKnobValue(knobName, knobValue);
if (!std::holds_alternative<NoKnobFound>(parsedKnobValue)) {
return KnobValueRef::create(parsedKnobValue);
}
parsedKnobValue = clientKnobs.parseKnobValue(knobName, knobValue);
if (!std::holds_alternative<NoKnobFound>(parsedKnobValue)) {
return KnobValueRef::create(parsedKnobValue);
}
throw invalid_option();
}
void setKnob(std::string const& knobName, KnobValueRef const& knobValue) override {
// Assert because we should validate inputs beforehand
ASSERT(knobValue.setKnob(knobName, flowKnobs) || knobValue.setKnob(knobName, clientKnobs));
}
};
std::unique_ptr<IKnobCollection> createClientKnobs(bool randomize = false, bool isSimulated = false) {
return std::make_unique<ClientKnobCollection>(randomize, isSimulated);
}