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TaskTree: Fix Timeout activation

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The activation of one timeout may cancel the other running
timeout. Don't remove all timeouts which are to be activated before
the activation loop. Remove and activate incrementally instead.

Change-Id: I6147fb63b6ef9d6ada034330d98d1c13419012b4
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This commit is contained in:
Jarek Kobus
2023-11-15 23:36:10 +01:00
parent 73bff6d497
commit 9d44d1899d
1 changed files with 24 additions and 25 deletions
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49
src/libs/solutions/tasking/tasktree.cpp
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@@ -2684,29 +2684,6 @@ struct TimerThreadData
// Please note the thread_local keyword below guarantees a separate instance per thread.
static thread_local TimerThreadData s_threadTimerData = {};
static QList<TimerData> prepareForActivation(int timerId)
{
const auto it = s_threadTimerData.m_timerIdToTimerData.constFind(timerId);
if (it == s_threadTimerData.m_timerIdToTimerData.cend())
return {}; // the timer was already activated
const system_clock::time_point deadline = it->m_deadline;
QList<TimerData> toActivate;
auto itMap = s_threadTimerData.m_deadlineToTimerId.cbegin();
while (itMap != s_threadTimerData.m_deadlineToTimerId.cend()) {
if (itMap.key() > deadline)
break;
const auto it = s_threadTimerData.m_timerIdToTimerData.constFind(itMap.value());
if (it != s_threadTimerData.m_timerIdToTimerData.cend()) {
toActivate.append(it.value());
s_threadTimerData.m_timerIdToTimerData.erase(it);
}
itMap = s_threadTimerData.m_deadlineToTimerId.erase(itMap);
}
return toActivate;
}
static void removeTimerId(int timerId)
{
const auto it = s_threadTimerData.m_timerIdToTimerData.constFind(timerId);
@@ -2722,8 +2699,30 @@ static void removeTimerId(int timerId)
static void handleTimeout(int timerId)
{
const QList<TimerData> toActivate = prepareForActivation(timerId);
for (const TimerData &timerData : toActivate) {
const auto itData = s_threadTimerData.m_timerIdToTimerData.constFind(timerId);
if (itData == s_threadTimerData.m_timerIdToTimerData.cend())
return; // The timer was already activated.
const auto deadline = itData->m_deadline;
while (true) {
const auto itMap = s_threadTimerData.m_deadlineToTimerId.cbegin();
if (itMap == s_threadTimerData.m_deadlineToTimerId.cend())
return;
if (itMap.key() > deadline)
return;
const auto it = s_threadTimerData.m_timerIdToTimerData.constFind(itMap.value());
if (it == s_threadTimerData.m_timerIdToTimerData.cend()) {
s_threadTimerData.m_deadlineToTimerId.erase(itMap);
QT_CHECK(false);
return;
}
const TimerData timerData = it.value();
s_threadTimerData.m_timerIdToTimerData.erase(it);
s_threadTimerData.m_deadlineToTimerId.erase(itMap);
if (timerData.m_context)
timerData.m_callback();
}