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/**
* Copyright (C) 2021-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/db/repl/initial_syncer_factory.h"
namespace mongo {
namespace repl {
const auto serviceInitialSyncerFactory =
ServiceContext::declareDecoration<std::unique_ptr<InitialSyncerFactory>>();
ServiceContext::ConstructorActionRegisterer initialSyncerFactoryRegisterer{
"InitialSyncerFactoryRegisterer", [](ServiceContext* svcCtx) {
auto initialSyncerFactory = std::make_unique<InitialSyncerFactory>();
InitialSyncerFactory::set(svcCtx, std::move(initialSyncerFactory));
}};
InitialSyncerFactory* InitialSyncerFactory::get(ServiceContext* svcCtx) {
return serviceInitialSyncerFactory(svcCtx).get();
}
void InitialSyncerFactory::set(ServiceContext* svcCtx,
std::unique_ptr<InitialSyncerFactory> newInitialSyncerFactory) {
invariant(newInitialSyncerFactory);
auto& initialSyncerFactory = serviceInitialSyncerFactory(svcCtx);
initialSyncerFactory = std::move(newInitialSyncerFactory);
}
StatusWith<std::shared_ptr<InitialSyncerInterface>> InitialSyncerFactory::makeInitialSyncer(
const std::string& initialSyncMethod,
InitialSyncerInterface::Options opts,
std::unique_ptr<DataReplicatorExternalState> dataReplicatorExternalState,
ThreadPool* writerPool,
StorageInterface* storage,
ReplicationProcess* replicationProcess,
const InitialSyncerInterface::OnCompletionFn& onCompletion) {
auto fn = _createInitialSyncerFunctionMap.find(initialSyncMethod);
if (fn == _createInitialSyncerFunctionMap.end()) {
return {ErrorCodes::NotImplemented,
str::stream() << "The initial sync method " << initialSyncMethod
<< " is not available."};
}
return fn->second(opts,
std::move(dataReplicatorExternalState),
writerPool,
storage,
replicationProcess,
onCompletion);
}
void InitialSyncerFactory::runCrashRecovery() {
// We run crash recovery for all initial sync classes, regardless of which one we are configured
// to use. Only one of them should actually do anything.
for (auto& crashRecoveryFunction : _crashRecoveryFunctions) {
crashRecoveryFunction();
}
}
void InitialSyncerFactory::registerInitialSyncer(
const std::string& initialSyncMethod,
CreateInitialSyncerFunction createInitialSyncerFunction,
InitialSyncCrashRecoveryFunction crashRecoveryFunction) {
invariant(_createInitialSyncerFunctionMap.find(initialSyncMethod) ==
_createInitialSyncerFunctionMap.end());
_createInitialSyncerFunctionMap[initialSyncMethod] = createInitialSyncerFunction;
// Not all initial syncers have a crash recovery function.
if (crashRecoveryFunction) {
_crashRecoveryFunctions.emplace_back(crashRecoveryFunction);
}
}
} // namespace repl
} // namespace mongo
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