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/**
* Copyright (C) 2013 10gen 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/db/exec/mock_stage.h"
namespace mongo {
MockStage::MockStage(WorkingSet* ws) : _ws(ws) { }
PlanStage::StageState MockStage::work(WorkingSetID* out) {
if (isEOF()) { return PlanStage::IS_EOF; }
StageState state = _results.front();
_results.pop();
if (PlanStage::ADVANCED == state) {
// We advanced. Put the mock obj into the working set.
WorkingSetID id = _ws->allocate();
WorkingSetMember* member = _ws->get(id);
*member = _members.front();
_members.pop();
*out = id;
}
return state;
}
bool MockStage::isEOF() { return _results.empty(); }
void MockStage::pushBack(const PlanStage::StageState state) {
_results.push(state);
}
void MockStage::pushBack(const WorkingSetMember& member) {
_results.push(PlanStage::ADVANCED);
_members.push(member);
}
} // namespace mongo
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