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// isself.cpp
/**
* 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/>.
*
* 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 GNU Affero General 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/platform/basic.h"
#include "mongo/base/init.h"
#include "mongo/db/commands.h"
#include "mongo/db/repl/isself.h"
namespace mongo {
using std::string;
using std::stringstream;
class IsSelfCommand : public Command {
public:
IsSelfCommand() : Command("_isSelf") {}
virtual bool slaveOk() const { return true; }
virtual bool isWriteCommandForConfigServer() const { return false; }
virtual void help( stringstream &help ) const {
help << "{ _isSelf : 1 } INTERNAL ONLY";
}
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) {} // No auth required
bool run(OperationContext* txn,
const string& dbname,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
result.append( "id" , repl::instanceId );
return true;
}
};
MONGO_INITIALIZER_WITH_PREREQUISITES(RegisterIsSelfCommand, ("GenerateInstanceId"))
(InitializerContext* context) {
// Leaked intentionally: a Command registers itself when constructed
new IsSelfCommand();
return Status::OK();
}
} // namespace mongo
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