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/********************* */
/*! \file smt_statistics_registry.h
** \verbatim
** Top contributors (to current version):
** Tim King, Paul Meng
** This file is part of the CVC4 project.
** Copyright (c) 2009-2017 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Accessor for the SmtEngine's StatisticsRegistry.
**
** Accessor for the SmtEngine's StatisticsRegistry.
**/
#include "cvc4_private.h"
#pragma once
#include "util/statistics_registry.h"
namespace CVC4 {
/**
* This returns the StatisticsRegistry attached to the currently in scope
* SmtEngine. This is a synonym for smt::SmtScope::currentStatisticsRegistry().
*/
StatisticsRegistry* smtStatisticsRegistry();
/**
* To use a statistic, you need to declare it, initialize it in your
* constructor, register it in your constructor, and deregister it in
* your destructor. Instead, this macro does it all for you (and
* therefore also keeps the statistic type, field name, and output
* string all in the same place in your class's header. Its use is
* like in this example, which takes the place of the declaration of a
* statistics field "d_checkTimer":
*
* KEEP_STATISTIC(TimerStat, d_checkTimer, "theory::uf::checkTime");
*
* If any args need to be passed to the constructor, you can specify
* them after the string.
*
* The macro works by creating a nested class type, derived from the
* statistic type you give it, which declares a registry-aware
* constructor/destructor pair.
*/
#define KEEP_STATISTIC(_StatType, _StatField, _StatName, _CtorArgs...) \
struct Statistic_##_StatField : public _StatType { \
Statistic_##_StatField() : _StatType(_StatName, ## _CtorArgs) { \
smtStatisticsRegistry()->registerStat(this); \
} \
~Statistic_##_StatField() { \
smtStatisticsRegistry()->unregisterStat(this); \
} \
} _StatField
}/* CVC4 namespace */
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