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b17e0bb5ca
which was keeping stuff alive for too long.
regression from
commit 8a17b7f0a6
Author: Noel Grandin <noelgrandin@gmail.com>
Date: Thu Mar 13 18:37:54 2025 +0200
tdf#131595 Improve drawinglayer flushing mechanism.
Change-Id: I82c3e11d027b22a969d2ce786a0945fea2deb6b9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/186389
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <comphelper/configuration.hxx>
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#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
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#include <drawinglayer/geometry/viewinformation2d.hxx>
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#include <drawinglayer/primitive2d/BufferedDecompositionFlusher.hxx>
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namespace drawinglayer::primitive2d
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{
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bool BufferedDecompositionPrimitive2D::hasBuffered2DDecomposition() const
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{
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if (!mbFlushOnTimer)
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return maBuffered2DDecomposition.is();
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else
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{
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std::lock_guard Guard(maCallbackLock);
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return maBuffered2DDecomposition.is();
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}
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}
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void BufferedDecompositionPrimitive2D::setBuffered2DDecomposition(Primitive2DReference rNew)
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{
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if (!mbFlushOnTimer)
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{
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// no flush used, just set
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maBuffered2DDecomposition = std::move(rNew);
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}
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else
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{
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// decomposition changed, touch
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maLastAccess = std::chrono::steady_clock::now();
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BufferedDecompositionFlusher::update(this);
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// tdf#158913 need to secure change when flush/multithreading is in use
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std::lock_guard Guard(maCallbackLock);
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maBuffered2DDecomposition = std::move(rNew);
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}
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}
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BufferedDecompositionPrimitive2D::BufferedDecompositionPrimitive2D()
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: maBuffered2DDecomposition()
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, maCallbackLock()
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, mbFlushOnTimer(false)
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{
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}
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BufferedDecompositionPrimitive2D::~BufferedDecompositionPrimitive2D()
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{
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if (mbFlushOnTimer)
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BufferedDecompositionFlusher::remove(this);
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}
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void BufferedDecompositionPrimitive2D::get2DDecomposition(
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Primitive2DDecompositionVisitor& rVisitor,
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const geometry::ViewInformation2D& rViewInformation) const
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{
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if (!mbFlushOnTimer)
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{
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// no flush/multithreading is in use, just call
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if (!maBuffered2DDecomposition)
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maBuffered2DDecomposition = create2DDecomposition(rViewInformation);
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rVisitor.visit(maBuffered2DDecomposition);
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}
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else
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{
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// tdf#158913 need to secure 'visit' when flush/multithreading is in use,
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// so that the local non-ref-Counted instance of the decomposition gets not
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// manipulated (e.g. deleted)
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Primitive2DReference xTmp;
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{
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maLastAccess = std::chrono::steady_clock::now();
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// only hold the lock for long enough to get a valid reference
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std::lock_guard Guard(maCallbackLock);
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if (!maBuffered2DDecomposition)
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{
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maBuffered2DDecomposition = create2DDecomposition(rViewInformation);
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BufferedDecompositionFlusher::update(this);
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}
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xTmp = maBuffered2DDecomposition;
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}
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rVisitor.visit(xTmp);
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}
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}
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void BufferedDecompositionPrimitive2D::activateFlushOnTimer()
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{
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if (comphelper::IsFuzzing())
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return;
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mbFlushOnTimer = true;
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}
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} // end of namespace drawinglayer::primitive2d
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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