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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::kControl
#include "mongo/platform/basic.h"
#include "mongo/db/service_liaison_mongos.h"
#include "mongo/db/service_context.h"
#include "mongo/s/grid.h"
#include "mongo/s/query/cluster_cursor_manager.h"
#include "mongo/stdx/mutex.h"
#include "mongo/util/clock_source.h"
#include "mongo/util/log.h"
namespace mongo {
LogicalSessionIdSet ServiceLiaisonMongos::getActiveOpSessions() const {
LogicalSessionIdSet activeSessions;
invariant(hasGlobalServiceContext());
// Walk through the service context and append lsids for all currently-running ops.
for (ServiceContext::LockedClientsCursor cursor(getGlobalServiceContext());
Client* client = cursor.next();) {
stdx::lock_guard<Client> lk(*client);
auto clientOpCtx = client->getOperationContext();
// Ignore clients without currently-running operations
if (!clientOpCtx)
continue;
// Append this op ctx's session to our list, if it has one
auto lsid = clientOpCtx->getLogicalSessionId();
if (lsid) {
activeSessions.insert(*lsid);
}
}
return activeSessions;
}
LogicalSessionIdSet ServiceLiaisonMongos::getOpenCursorSessions() const {
LogicalSessionIdSet openCursorSessions;
invariant(hasGlobalServiceContext());
// Append any in-use session ids from the global cluster cursor managers.
auto cursorManager = Grid::get(getGlobalServiceContext())->getCursorManager();
cursorManager->appendActiveSessions(&openCursorSessions);
return openCursorSessions;
}
void ServiceLiaisonMongos::scheduleJob(PeriodicRunner::PeriodicJob job) {
invariant(hasGlobalServiceContext());
auto jobAnchor = getGlobalServiceContext()->getPeriodicRunner()->makeJob(std::move(job));
jobAnchor.start();
{
stdx::lock_guard<stdx::mutex> lk(_mutex);
_jobs.push_back(std::move(jobAnchor));
}
}
void ServiceLiaisonMongos::join() {
auto jobs = [&] {
stdx::lock_guard<stdx::mutex> lk(_mutex);
return std::exchange(_jobs, {});
}();
}
Date_t ServiceLiaisonMongos::now() const {
invariant(hasGlobalServiceContext());
return getGlobalServiceContext()->getFastClockSource()->now();
}
ServiceContext* ServiceLiaisonMongos::_context() {
return getGlobalServiceContext();
}
std::pair<Status, int> ServiceLiaisonMongos::killCursorsWithMatchingSessions(
OperationContext* opCtx, const SessionKiller::Matcher& matcher) {
auto cursorManager = Grid::get(getGlobalServiceContext())->getCursorManager();
return cursorManager->killCursorsWithMatchingSessions(opCtx, matcher);
}
} // namespace mongo
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