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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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kStorage
#include "mongo/platform/basic.h"
#include "mongo/base/init.h"
#include "mongo/bson/timestamp.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/test_commands_enabled.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/logical_clock.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/repl/replication_coordinator.h"
#include "mongo/db/service_context.h"
#include "mongo/db/storage/snapshot_manager.h"
namespace mongo {
class CmdMakeSnapshot final : public BasicCommand {
public:
CmdMakeSnapshot() : BasicCommand("makeSnapshot") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
virtual bool adminOnly() const {
return true;
}
// No auth needed because it only works when enabled via command line.
virtual Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const {
return Status::OK();
}
std::string help() const override {
return "Creates a new named snapshot";
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) {
auto snapshotManager = getGlobalServiceContext()->getStorageEngine()->getSnapshotManager();
if (!snapshotManager) {
uasserted(ErrorCodes::CommandNotSupported, "");
}
Lock::GlobalLock lk(opCtx, MODE_IX);
auto name = LogicalClock::getClusterTimeForReplicaSet(opCtx).asTimestamp();
result.append("name", static_cast<long long>(name.asULL()));
return true;
}
};
MONGO_REGISTER_TEST_COMMAND(CmdMakeSnapshot);
class CmdSetCommittedSnapshot final : public BasicCommand {
public:
CmdSetCommittedSnapshot() : BasicCommand("setCommittedSnapshot") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
virtual bool adminOnly() const {
return true;
}
// No auth needed because it only works when enabled via command line.
virtual Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const {
return Status::OK();
}
std::string help() const override {
return "Sets the snapshot for {readConcern: {level: 'majority'}}";
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) {
auto snapshotManager = getGlobalServiceContext()->getStorageEngine()->getSnapshotManager();
if (!snapshotManager) {
uasserted(ErrorCodes::CommandNotSupported, "");
}
Lock::GlobalLock lk(opCtx, MODE_IX);
auto timestamp = Timestamp(cmdObj.firstElement().Long());
snapshotManager->setCommittedSnapshot(timestamp);
return true;
}
};
MONGO_REGISTER_TEST_COMMAND(CmdSetCommittedSnapshot);
}
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