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/**
* Copyright (C) 2015 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kQuery
#include "mongo/platform/basic.h"
#include "mongo/db/exec/plan_stage.h"
#include "mongo/db/exec/scoped_timer.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/service_context.h"
namespace mongo {
PlanStage::StageState PlanStage::work(WorkingSetID* out) {
invariant(_opCtx);
ScopedTimer timer(getClock(), &_commonStats.executionTimeMillis);
++_commonStats.works;
StageState workResult = doWork(out);
if (StageState::ADVANCED == workResult) {
++_commonStats.advanced;
} else if (StageState::NEED_TIME == workResult) {
++_commonStats.needTime;
} else if (StageState::NEED_YIELD == workResult) {
++_commonStats.needYield;
}
return workResult;
}
void PlanStage::saveState() {
++_commonStats.yields;
for (auto&& child : _children) {
child->saveState();
}
doSaveState();
}
void PlanStage::restoreState() {
++_commonStats.unyields;
for (auto&& child : _children) {
child->restoreState();
}
doRestoreState();
}
void PlanStage::invalidate(OperationContext* txn, const RecordId& dl, InvalidationType type) {
++_commonStats.invalidates;
for (auto&& child : _children) {
child->invalidate(txn, dl, type);
}
doInvalidate(txn, dl, type);
}
void PlanStage::detachFromOperationContext() {
invariant(_opCtx);
_opCtx = nullptr;
for (auto&& child : _children) {
child->detachFromOperationContext();
}
doDetachFromOperationContext();
}
void PlanStage::reattachToOperationContext(OperationContext* opCtx) {
invariant(_opCtx == nullptr);
_opCtx = opCtx;
for (auto&& child : _children) {
child->reattachToOperationContext(opCtx);
}
doReattachToOperationContext();
}
ClockSource* PlanStage::getClock() const {
return _opCtx->getServiceContext()->getFastClockSource();
}
} // namespace mongo
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