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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "tasktimers.h"
#include <utils/qtcassert.h>
#include <QDateTime>
namespace ClangCodeModel::Internal {
Q_LOGGING_CATEGORY(clangdLogTiming, "qtc.clangcodemodel.clangd.timing", QtWarningMsg);
void ClangCodeModel::Internal::TaskTimer::stopTask()
{
// This can happen due to the RAII mechanism employed with SubtaskTimer.
// The subtask timers will expire immediately after, so this does not distort
// the timing data.
if (m_subtasks > 0) {
QTC_CHECK(m_timer.isValid());
m_elapsedMs += m_timer.elapsed();
m_timer.invalidate();
m_subtasks = 0;
}
m_started = false;
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": took " << m_elapsedMs
<< " ms in UI thread";
m_elapsedMs = 0;
}
void TaskTimer::startSubtask()
{
// We have some callbacks that are either synchronous or asynchronous, depending on
// dynamic conditions. In the sync case, we will have nested subtasks, in which case
// the inner ones must not collect timing data, as their code blocks are already covered.
if (++m_subtasks > 1)
return;
if (!m_started) {
QTC_ASSERT(m_elapsedMs == 0, m_elapsedMs = 0);
m_started = true;
m_finalized = false;
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": starting";
// Used by ThreadedSubtaskTimer to mark the end of the whole highlighting operation
m_startTimer.restart();
}
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": subtask started at "
<< QDateTime::currentDateTime().time().toString("hh:mm:ss.zzz");
QTC_CHECK(!m_timer.isValid());
m_timer.start();
}
void TaskTimer::stopSubtask(bool isFinalizing)
{
if (m_subtasks == 0) // See stopTask().
return;
if (isFinalizing)
m_finalized = true;
if (--m_subtasks > 0) // See startSubtask().
return;
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": subtask stopped at "
<< QDateTime::currentDateTime().time().toString("hh:mm:ss.zzz");
QTC_CHECK(m_timer.isValid());
m_elapsedMs += m_timer.elapsed();
m_timer.invalidate();
if (m_finalized)
stopTask();
}
ThreadedSubtaskTimer::ThreadedSubtaskTimer(const QString &task, const TaskTimer &taskTimer)
: m_task(task), m_taskTimer(taskTimer)
{
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": starting thread";
m_timer.start();
}
ThreadedSubtaskTimer::~ThreadedSubtaskTimer()
{
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": took " << m_timer.elapsed()
<< " ms in dedicated thread";
qCDebug(clangdLogTiming).noquote().nospace() << m_task << ": Start to end: "
<< m_taskTimer.startTimer().elapsed() << " ms";
}
} // namespace ClangCodeModel::Internal
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