278f92b189
* lang/qt/src/Makefile.am: Add new files. * lang/qt/src/cleaner.cpp, lang/qt/src/cleaner.h: New. * lang/qt/src/util.cpp (PartialFileGuard::~PartialFileGuard): Call Cleaner::removeFile instead of removeFile. * lang/qt/src/util.cpp, lang/qt/src/util.h (removeFile): Remove. -- If the initial attempt to remove the file fails then a Cleaner is created that tries to remove the file at regular intervals (10 s) and on destruction (which happens on application shutdown). GnuPG-bug-id: 6584
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/*
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cleaner.cpp
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This file is part of qgpgme, the Qt API binding for gpgme
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Copyright (c) 2023 g10 Code GmbH
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Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
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QGpgME is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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QGpgME is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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In addition, as a special exception, the copyright holders give
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permission to link the code of this program with any edition of
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the Qt library by Trolltech AS, Norway (or with modified versions
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of Qt that use the same license as Qt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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Qt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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your version.
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*/
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#include "cleaner.h"
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#include <qgpgme_debug.h>
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#include <QCoreApplication>
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#include <QFile>
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#include <chrono>
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static const auto timeout = std::chrono::seconds{10};
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static bool remove_file(const QString &filePath)
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{
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if (filePath.isEmpty()) {
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qCWarning(QGPGME_LOG) << __func__ << "- called with empty file path";
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return true;
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}
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if (QFile::exists(filePath)) {
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qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath;
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if (!QFile::remove(filePath)) {
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qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath << "failed";
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return false;
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}
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} else {
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qCDebug(QGPGME_LOG) << __func__ << "- File" << filePath << "doesn't exist";
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}
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return true;
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}
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void Cleaner::removeFile(const QString &filePath)
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{
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if (!remove_file(filePath)) {
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// use invokeMethod because we might not be called from the GUI thread
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// but we want to delegate the Cleaner's clean-up to the application instance
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QMetaObject::invokeMethod(qApp, [filePath]() {
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new Cleaner{filePath, qApp};
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}, Qt::QueuedConnection);
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}
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}
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Cleaner::Cleaner(const QString &filePath, QObject *parent)
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: QObject{parent}
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, mFilePath{filePath}
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{
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qCDebug(QGPGME_LOG) << this << __func__ << filePath;
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mTimer.setSingleShot(true);
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mTimer.callOnTimeout([this]() {
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if (remove_file(mFilePath)) {
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mFilePath.clear();
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deleteLater();
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} else {
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mTimer.start(timeout);
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}
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});
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mTimer.start(timeout);
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}
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Cleaner::~Cleaner()
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{
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qCDebug(QGPGME_LOG) << this << __func__;
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if (!mFilePath.isEmpty()) {
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remove_file(mFilePath);
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}
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}
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#include "cleaner.moc"
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