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/**
* Copyright (C) 2017 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 "mongo/db/service_liason_mongod.h"
#include "mongo/db/client.h"
#include "mongo/db/cursor_manager.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/service_context.h"
#include "mongo/stdx/mutex.h"
#include "mongo/util/clock_source.h"
#include "mongo/util/periodic_runner.h"
namespace mongo {
LogicalSessionIdSet ServiceLiasonMongod::getActiveSessions() 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);
}
}
// Append any in-use session ids from the global and collection-level cursor managers
{
auto client = Client::getCurrent();
auto opCtx = client->makeOperationContext();
CursorManager::appendAllActiveSessions(opCtx.get(), &activeSessions);
}
return activeSessions;
}
void ServiceLiasonMongod::scheduleJob(PeriodicRunner::PeriodicJob job) {
invariant(hasGlobalServiceContext());
getGlobalServiceContext()->getPeriodicRunner()->scheduleJob(std::move(job));
}
void ServiceLiasonMongod::join() {
invariant(hasGlobalServiceContext());
getGlobalServiceContext()->getPeriodicRunner()->shutdown();
}
Date_t ServiceLiasonMongod::now() const {
invariant(hasGlobalServiceContext());
return getGlobalServiceContext()->getFastClockSource()->now();
}
} // namespace mongo
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