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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [0]
void executeOperation(int msecs)
{
QDeadlineTimer deadline(msecs);
do {
if (readFromDevice(deadline.remainingTime()))
break;
waitForReadyRead(deadline);
} while (!deadline.hasExpired());
}
//! [0]
//! [1]
using namespace std::chrono;
using namespace std::chrono_literals;
QDeadlineTimer deadline(30s);
device->waitForReadyRead(deadline);
if (deadline.remainingTime<nanoseconds>() > 300ms)
cleanup();
//! [1]
//! [2]
using namespace std::chrono;
using namespace std::chrono_literals;
auto now = steady_clock::now();
QDeadlineTimer deadline(now + 1s);
Q_ASSERT(deadline == now + 1s);
//! [2]
//! [3]
using namespace std::chrono_literals;
QDeadlineTimer deadline(250ms);
//! [3]
//! [4]
using namespace std::chrono_literals;
deadline.setRemainingTime(250ms);
//! [4]
//! [5]
mutex.tryLock(deadline.remainingTime());
//! [5]
//! [6]
qint64 realTimeLeft = deadline.deadline();
if (realTimeLeft != (std::numeric_limits<qint64>::max)()) {
realTimeLeft -= QDeadlineTimer::current().deadline();
// or:
//QElapsedTimer timer;
//timer.start();
//realTimeLeft -= timer.msecsSinceReference();
}
//! [6]
//! [7]
qint64 realTimeLeft = deadline.deadlineNSecs();
if (realTimeLeft != std::numeric_limits<qint64>::max())
realTimeLeft -= QDeadlineTimer::current().deadlineNSecs();
//! [7]
//! [8]
return lhs.deadlineNSecs() == rhs.deadlineNSecs();
//! [8]
//! [9]
return lhs.deadlineNSecs() != rhs.deadlineNSecs();
//! [9]
//! [10]
return lhs.deadlineNSecs() < rhs.deadlineNSecs();
//! [10]
//! [11]
return lhs.deadlineNSecs() <= rhs.deadlineNSecs();
//! [11]
//! [12]
return lhs.deadlineNSecs() > rhs.deadlineNSecs();
//! [12]
//! [13]
return lhs.deadlineNSecs() >= rhs.deadlineNSecs();
//! [13]
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