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// SPDX-FileCopyrightText: 2021 Daniel Vrátil <dvratil@kde.org>
//
// SPDX-License-Identifier: MIT
#include "qcorotask.h"
#include "qcorotimer.h"
#include <QCoreApplication>
#include <QTimer>
#include <chrono>
#include <iostream>
using namespace std::chrono_literals;
QCoro::Task<QString> generateRandomString() {
std::cout << "GenerateRandomString started" << std::endl;
QTimer timer;
timer.start(1s);
std::cout << "GenerateRandomString \"generating\"..." << std::endl;
co_await timer;
std::cout << "GenerateRandomString finished \"generating\"" << std::endl;
std::cout << "GenerateRandomString co_returning to caller" << std::endl;
co_return QStringLiteral("RandomString!");
}
QCoro::Task<qsizetype> generateRandomNumber() {
std::cout << "GenerateRandomNumber started" << std::endl;
std::cout << "GenerateRandomNumber co_awaiting on generateRandomString()" << std::endl;
const QString string = co_await generateRandomString();
std::cout << "GenerateRandomNumber successfully co_awaited on generateRandomString() and "
"co_returns result"
<< std::endl;
co_return string.size();
}
QCoro::Task<> logRandomNumber() {
std::cout << "LogRandomNumber started" << std::endl;
std::cout << "LogRandomNumber co_awaiting on generateRandomNumber()" << std::endl;
const int number = co_await generateRandomNumber();
std::cout << "Random number for today is: " << number << std::endl;
qApp->quit();
}
int main(int argc, char **argv) {
QCoreApplication app{argc, argv};
QTimer::singleShot(0, qApp, logRandomNumber);
return app.exec();
}
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