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/**
* Copyright (c) 2011 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/>.
*/
#pragma once
#include "mongo/pch.h"
#include "util/intrusive_counter.h"
namespace mongo {
class InterruptStatus;
class ExpressionContext :
public IntrusiveCounterUnsigned {
public:
virtual ~ExpressionContext();
void setDoingMerge(bool b);
void setInShard(bool b);
void setInRouter(bool b);
bool getDoingMerge() const;
bool getInShard() const;
bool getInRouter() const;
/**
Used by a pipeline to check for interrupts so that killOp() works.
@throws if the operation has been interrupted
*/
void checkForInterrupt();
ExpressionContext* clone();
static ExpressionContext *create(InterruptStatus *pStatus);
private:
ExpressionContext(InterruptStatus *pStatus);
bool doingMerge;
bool inShard;
bool inRouter;
unsigned intCheckCounter; // interrupt check counter
InterruptStatus *const pStatus;
};
}
/* ======================= INLINED IMPLEMENTATIONS ========================== */
namespace mongo {
inline void ExpressionContext::setDoingMerge(bool b) {
doingMerge = b;
}
inline void ExpressionContext::setInShard(bool b) {
inShard = b;
}
inline void ExpressionContext::setInRouter(bool b) {
inRouter = b;
}
inline bool ExpressionContext::getDoingMerge() const {
return doingMerge;
}
inline bool ExpressionContext::getInShard() const {
return inShard;
}
inline bool ExpressionContext::getInRouter() const {
return inRouter;
}
};
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