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/**
* Copyright (C) 2016 MongoDB 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 <map>
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/concurrency/lock_manager_defs.h"
#include "mongo/db/concurrency/lock_state.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/service_context.h"
namespace mongo {
using std::string;
using std::stringstream;
/**
* Admin command to display global lock information
*/
class CmdLockInfo : public Command {
public:
virtual bool slaveOk() const {
return true;
}
virtual bool slaveOverrideOk() const {
return true;
}
virtual bool adminOnly() const {
return true;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const {
return false;
}
virtual void help(stringstream& help) const {
help << "show all lock info on the server";
}
Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) final {
bool isAuthorized = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forClusterResource(), ActionType::serverStatus);
return isAuthorized ? Status::OK() : Status(ErrorCodes::Unauthorized, "Unauthorized");
}
CmdLockInfo() : Command("lockInfo") {}
bool run(OperationContext* opCtx,
const string& dbname,
BSONObj& jsobj,
string& errmsg,
BSONObjBuilder& result) {
std::map<LockerId, BSONObj> lockToClientMap;
for (ServiceContext::LockedClientsCursor cursor(opCtx->getClient()->getServiceContext());
Client* client = cursor.next();) {
invariant(client);
stdx::lock_guard<Client> lk(*client);
const OperationContext* clientOpCtx = client->getOperationContext();
// Operation context specific information
if (clientOpCtx) {
BSONObjBuilder infoBuilder;
// The client information
client->reportState(infoBuilder);
infoBuilder.append("opid", clientOpCtx->getOpID());
LockerId lockerId = clientOpCtx->lockState()->getId();
lockToClientMap.insert({lockerId, infoBuilder.obj()});
}
}
getGlobalLockManager()->getLockInfoBSON(lockToClientMap, &result);
return true;
}
} cmdLockInfo;
}
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