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/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <string>
#include "mongo/db/jsobj.h"
#include "mongo/util/background.h"
/**
* Forks off a thread to build an index.
*/
namespace mongo {
class IndexBuilder : public BackgroundJob {
public:
IndexBuilder(const std::string ns, const BSONObj index);
virtual ~IndexBuilder();
virtual void run();
virtual std::string name() const;
void build() const;
/**
* Kill all in-progress indexes matching criteria and, optionally, store them in the
* indexes list.
*/
static std::vector<BSONObj> killMatchingIndexBuilds(const BSONObj& criteria);
/**
* Retry all index builds in the list. Builds each index in a separate thread. If ns does
* not match the ns field in the indexes list, the BSONObj's ns field is changed before the
* index is built (to handle rename).
*/
static void restoreIndexes(const std::string& ns, const std::vector<BSONObj>& indexes);
private:
const std::string _ns;
const BSONObj _index;
std::string _name;
static AtomicUInt _indexBuildCount;
};
}
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