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QmlDesigner: Delete puppet rhi pipeline cache every now and then

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Unused pipelines are never removed from the cache, so if we don't
delete it ourselves, the cache file will keep growing indefinitely.

We now keep count of how many times we have stored the cache and
remove it after set number of times to avoid bloat.

Fixes: QDS-10075
Change-Id: I5a4d25a7e40c8ff761c6c523cb80cda3f721528f
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
(cherry picked from commit 07d0cfa1e2b5ae0d53e4a8ec3642b933928fe365)
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
This commit is contained in:
Miikka Heikkinen
2023-06-09 16:08:34 +03:00
committed by Thomas Hartmann
parent b70370281c
commit 5464d60728
1 changed files with 24 additions and 8 deletions
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32
src/tools/qml2puppet/qml2puppet/instances/qt5nodeinstanceserver.cpp
View File

@@ -217,18 +217,34 @@ void Qt5NodeInstanceServer::savePipelineCacheData()
if (!m_viewData.rhi)
return;
const QByteArray pipelineData = m_viewData.rhi->pipelineCacheData();
QByteArray pipelineData = m_viewData.rhi->pipelineCacheData();
if (pipelineData.isEmpty())
return;
m_pipelineCacheData = pipelineData;
char count = 0;
if (!m_pipelineCacheData.isEmpty())
count = m_pipelineCacheData[m_pipelineCacheData.size() - 1];
pipelineData.append(++count);
QTimer::singleShot(0, this, [this]() {
QFile file(m_pipelineCacheFile);
if (file.open(QIODevice::WriteOnly | QIODevice::Truncate))
file.write(m_pipelineCacheData);
});
const bool needWrite = m_pipelineCacheData.size() != pipelineData.size()
&& !m_pipelineCacheFile.isEmpty();
if (needWrite) {
m_pipelineCacheData = pipelineData;
QTimer::singleShot(0, this, [this]() {
QFile cacheFile(m_pipelineCacheFile);
// Cache file can grow indefinitely, so let's just purge it every so often.
// The count is stored as the last char in the data.
char count = m_pipelineCacheData[m_pipelineCacheData.size() - 1];
if (count > 25)
cacheFile.remove();
else if (cacheFile.open(QIODevice::WriteOnly | QIODevice::Truncate))
cacheFile.write(m_pipelineCacheData);
});
}
#endif
}
@@ -267,7 +283,7 @@ bool Qt5NodeInstanceServer::initRhi([[maybe_unused]] RenderViewData &viewData)
}
#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 1)
if (!m_pipelineCacheData.isEmpty())
viewData.rhi->setPipelineCacheData(m_pipelineCacheData);
viewData.rhi->setPipelineCacheData(m_pipelineCacheData.left(m_pipelineCacheData.size() - 1));
#endif
}