overte/libraries/shared/src/StatTracker.h
2017-09-27 09:33:10 -07:00

48 lines
1.2 KiB
C++

//
// Created by Ryan Huffman on 2016-12-14
// Copyright 2013-2016 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#pragma once
#include <QtCore/QString>
#include <QtCore/QVariant>
#include <QtCore/QSet>
#include <QtCore/QVariantMap>
#include <mutex>
#include "DependencyManager.h"
#include "Trace.h"
using EditStatFunction = std::function<QVariant(QVariant currentValue)>;
class StatTracker : public Dependency {
public:
StatTracker();
QVariant getStat(const QString& name);
void setStat(const QString& name, int64_t value);
void updateStat(const QString& name, int64_t mod);
void incrementStat(const QString& name);
void decrementStat(const QString& name);
private:
using Mutex = std::mutex;
using Lock = std::lock_guard<Mutex>;
Mutex _statsLock;
QHash<QString, int64_t> _stats;
};
class CounterStat {
public:
CounterStat(QString name) : _name(name) {
DependencyManager::get<StatTracker>()->incrementStat(_name);
}
~CounterStat() {
DependencyManager::get<StatTracker>()->decrementStat(_name);
}
private:
QString _name;
};