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Access test results list from multiple threads in a safe way

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This had lead to crashes when executing projects with some more
tests or more test output. Now it's using a mutex to avoid
concurrent access.
This commit is contained in:
Christian Stenger
2014-11-20 13:57:41 +01:00
parent 036c648650
commit eb073616fb
2 changed files with 18 additions and 0 deletions
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16
plugins/autotest/testresultmodel.cpp
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@@ -36,6 +36,7 @@ TestResultModel::TestResultModel(QObject *parent) :
TestResultModel::~TestResultModel()
{
QWriteLocker lock(&m_rwLock);
m_testResults.clear();
}
@@ -53,6 +54,7 @@ QModelIndex TestResultModel::parent(const QModelIndex &) const
int TestResultModel::rowCount(const QModelIndex &parent) const
{
// do not use the QReadLocker here or this will produce a deadlock
return parent.isValid() ? 0 : m_testResults.size();
}
@@ -80,6 +82,7 @@ static QIcon testResultIcon(ResultType result) {
QVariant TestResultModel::data(const QModelIndex &index, int role) const
{
QReadLocker lock(&m_rwLock);
if (!index.isValid() || index.row() >= m_testResults.count() || index.column() != 0)
return QVariant();
if (role == Qt::DisplayRole) {
@@ -106,8 +109,12 @@ QVariant TestResultModel::data(const QModelIndex &index, int role) const
void TestResultModel::addTestResult(const TestResult &testResult)
{
QReadLocker rLock(&m_rwLock);
beginInsertRows(QModelIndex(), m_testResults.size(), m_testResults.size());
rLock.unlock();
QWriteLocker wLock(&m_rwLock);
m_testResults.append(testResult);
wLock.unlock();
int count = m_testResultCount.value(testResult.result(), 0);
m_testResultCount.insert(testResult.result(), ++count);
endInsertRows();
@@ -116,10 +123,14 @@ void TestResultModel::addTestResult(const TestResult &testResult)
void TestResultModel::clearTestResults()
{
QReadLocker rLock(&m_rwLock);
if (m_testResults.size() == 0)
return;
beginRemoveRows(QModelIndex(), 0, m_testResults.size() - 1);
rLock.unlock();
QWriteLocker wLock(&m_rwLock);
m_testResults.clear();
wLock.unlock();
m_testResultCount.clear();
m_lastMaxWidthIndex = 0;
m_maxWidthOfFileName = 0;
@@ -132,12 +143,15 @@ TestResult TestResultModel::testResult(const QModelIndex &index) const
{
if (!index.isValid())
return TestResult(QString(), QString());
QReadLocker lock(&m_rwLock);
return m_testResults.at(index.row());
}
int TestResultModel::maxWidthOfFileName(const QFont &font)
{
QReadLocker lock(&m_rwLock);
int count = m_testResults.size();
lock.unlock();
if (count == 0)
return 0;
if (m_maxWidthOfFileName > 0 && font == m_measurementFont && m_lastMaxWidthIndex == count - 1)
@@ -147,7 +161,9 @@ int TestResultModel::maxWidthOfFileName(const QFont &font)
m_measurementFont = font;
for (int i = m_lastMaxWidthIndex; i < count; ++i) {
lock.relock();
QString filename = m_testResults.at(i).fileName();
lock.unlock();
const int pos = filename.lastIndexOf(QLatin1Char('/'));
if (pos != -1)
filename = filename.mid(pos +1);