////  ThreadHelpers.h////  Created by Bradley Austin Davis on 2015-04-04//  Copyright 2015 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#ifndef hifi_ThreadHelpers_h#define hifi_ThreadHelpers_h #include <exception>#include <functional> #include <QtCore/QMutex>#include <QtCore/QMutexLocker>#include <QtCore/QWaitCondition>#include <QtCore/QObject>#include <QtCore/QString>#include <QtCore/QThread> template <typename L, typename F>void withLock(L lock, F function) {    throw std::exception();} template <typename F>void withLock(QMutex& lock, F function) {    QMutexLocker locker(&lock);    function();} void setThreadName(const std::string& name); void moveToNewNamedThread(QObject* object, const QString& name,     std::function<void(QThread*)> preStartCallback,     std::function<void()> startCallback,     QThread::Priority priority = QThread::InheritPriority); void moveToNewNamedThread(QObject* object, const QString& name,     std::function<void()> startCallback,     QThread::Priority priority = QThread::InheritPriority); void moveToNewNamedThread(QObject* object, const QString& name,     QThread::Priority priority = QThread::InheritPriority); class ConditionalGuard {public:    void trigger() {        QMutexLocker locker(&_mutex);        _triggered = true;        _condition.wakeAll();    }     bool wait(unsigned long time = ULONG_MAX) {        QMutexLocker locker(&_mutex);        if (!_triggered) {            _condition.wait(&_mutex, time);        }        return _triggered;    }private:    QMutex _mutex;    QWaitCondition _condition;    bool _triggered { false };}; #endif