fix use-afrer-free crash caused by QtConcurrent

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>
This commit is contained in:
Trial97
2025-12-09 23:31:01 +02:00
parent 808b09c403
commit 9cd199a49e
5 changed files with 42 additions and 43 deletions

View File

@@ -25,14 +25,14 @@ namespace MMCZip {
void ExtractZipTask::executeTask()
{
m_zip_future = QtConcurrent::run(QThreadPool::globalInstance(), [this]() { return extractZip(); });
connect(&m_zip_watcher, &QFutureWatcher<ZipResult>::finished, this, &ExtractZipTask::finish);
m_zip_watcher.setFuture(m_zip_future);
m_zipFuture = QtConcurrent::run(QThreadPool::globalInstance(), [this]() { return extractZip(); });
connect(&m_zipWatcher, &QFutureWatcher<ZipResult>::finished, this, &ExtractZipTask::finish);
m_zipWatcher.setFuture(m_zipFuture);
}
auto ExtractZipTask::extractZip() -> ZipResult
{
auto target = m_output_dir.absolutePath();
auto target = m_outputDir.absolutePath();
auto target_top_dir = QUrl::fromLocalFile(target);
QStringList extracted;
@@ -52,8 +52,9 @@ auto ExtractZipTask::extractZip() -> ZipResult
setStatus("Extracting files...");
setProgress(0, m_input.getFiles().count());
ZipResult result;
auto fileName = m_input.getZipName();
if (!m_input.parse([this, &result, &target, &target_top_dir, ext, &extracted](ArchiveReader::File* f) {
if (m_zip_future.isCanceled())
if (m_zipFuture.isCanceled())
return false;
setProgress(m_progress + 1, m_progressTotal);
QString file_name = f->filename();
@@ -104,17 +105,16 @@ auto ExtractZipTask::extractZip() -> ZipResult
return true;
})) {
FS::removeFiles(extracted);
return result.has_value() || m_zip_future.isCanceled() ? result
: ZipResult(tr("Failed to parse file %1").arg(m_input.getZipName()));
return result.has_value() ? result : ZipResult(tr("Failed to parse file %1").arg(fileName));
}
return ZipResult();
}
void ExtractZipTask::finish()
{
if (m_zip_future.isCanceled()) {
if (m_zipFuture.isCanceled()) {
emitAborted();
} else if (auto result = m_zip_future.result(); result.has_value()) {
} else if (auto result = m_zipFuture.result(); result.has_value()) {
emitFailed(result.value());
} else {
emitSucceeded();
@@ -123,8 +123,8 @@ void ExtractZipTask::finish()
bool ExtractZipTask::abort()
{
if (m_zip_future.isRunning()) {
m_zip_future.cancel();
if (m_zipFuture.isRunning()) {
m_zipFuture.cancel();
// NOTE: Here we don't do `emitAborted()` because it will be done when `m_build_zip_future` actually cancels, which may not occur
// immediately.
return true;