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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.
*/
#include "mongo/platform/basic.h"
#include "mongo/base/disallow_copying.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/commands/killcursors_common.h"
#include "mongo/db/curop.h"
#include "mongo/db/cursor_manager.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/query/killcursors_request.h"
#include "mongo/db/stats/top.h"
#include "mongo/util/scopeguard.h"
namespace mongo {
class KillCursorsCmd final : public KillCursorsCmdBase {
MONGO_DISALLOW_COPYING(KillCursorsCmd);
public:
KillCursorsCmd() = default;
bool supportsReadConcern(const std::string& dbName,
const BSONObj& cmdObj,
repl::ReadConcernLevel level) const final {
// killCursors must support snapshot read concern in order to be run in transactions.
return level == repl::ReadConcernLevel::kLocalReadConcern ||
level == repl::ReadConcernLevel::kSnapshotReadConcern;
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) final {
return runImpl(opCtx, dbname, cmdObj, result);
}
private:
Status _checkAuth(Client* client, const NamespaceString& nss, CursorId id) const final {
auto opCtx = client->getOperationContext();
return CursorManager::get(opCtx)->checkAuthForKillCursors(opCtx, id);
}
Status _killCursor(OperationContext* opCtx,
const NamespaceString& nss,
CursorId id) const final {
boost::optional<AutoStatsTracker> statsTracker;
if (!nss.isCollectionlessCursorNamespace()) {
const boost::optional<int> dbProfilingLevel = boost::none;
statsTracker.emplace(opCtx,
nss,
Top::LockType::NotLocked,
AutoStatsTracker::LogMode::kUpdateTopAndCurop,
dbProfilingLevel);
}
auto cursorManager = CursorManager::get(opCtx);
return cursorManager->killCursor(opCtx, id, true /* shouldAudit */);
}
} killCursorsCmd;
} // namespace mongo
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