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Maemo: Fix "race condition" in singleton access.

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This commit is contained in:
ck
2009-12-16 16:05:01 +01:00
parent de64a463f8
commit 6882c3cc9f
2 changed files with 7 additions and 13 deletions
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18
src/plugins/qt4projectmanager/qt-maemo/maemodeviceconfigurations.cpp
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@@ -87,7 +87,8 @@ MaemoDeviceConfigurations::DeviceConfig::DeviceConfig(const QString &name)
{
}
MaemoDeviceConfigurations::DeviceConfig::DeviceConfig(const QSettings &settings)
MaemoDeviceConfigurations::DeviceConfig::DeviceConfig(const QSettings &settings,
quint64 &nextId)
: name(settings.value(NameKey).toString()),
type(static_cast<DeviceType>(settings.value(TypeKey, Physical).toInt())),
host(settings.value(HostKey).toString()),
@@ -97,11 +98,10 @@ MaemoDeviceConfigurations::DeviceConfig::DeviceConfig(const QSettings &settings)
pwd(settings.value(PasswordKey).toString()),
keyFile(settings.value(KeyFileKey).toString()),
timeout(settings.value(TimeoutKey, 30).toInt()),
internalId(settings.value(InternalIdKey, MaemoDeviceConfigurations::instance().m_nextId).toInt())
internalId(settings.value(InternalIdKey, nextId).toInt())
{
if (internalId == MaemoDeviceConfigurations::instance().m_nextId)
++MaemoDeviceConfigurations::instance().m_nextId;
qDebug("%s: name = %s, id = %llu", Q_FUNC_INFO, qPrintable(name), internalId);
if (internalId == nextId)
++nextId;
}
MaemoDeviceConfigurations::DeviceConfig::DeviceConfig()
@@ -146,7 +146,6 @@ void MaemoDeviceConfigurations::save()
{
QSettings *settings = Core::ICore::instance()->settings();
settings->beginGroup(SettingsGroup);
qDebug("Writing next id: %llu", m_nextId);
settings->setValue(IdCounterKey, m_nextId);
settings->beginWriteArray(ConfigListKey, m_devConfigs.count());
for (int i = 0; i < m_devConfigs.count(); ++i) {
@@ -169,11 +168,10 @@ void MaemoDeviceConfigurations::load()
QSettings *settings = Core::ICore::instance()->settings();
settings->beginGroup(SettingsGroup);
m_nextId = settings->value(IdCounterKey, 1).toULongLong();
qDebug("Read next id: %llu", m_nextId);
int count = settings->beginReadArray(ConfigListKey);
for (int i = 0; i < count; ++i) {
settings->setArrayIndex(i);
m_devConfigs.append(DeviceConfig(*settings));
m_devConfigs.append(DeviceConfig(*settings, m_nextId));
}
settings->endArray();
settings->endGroup();
@@ -181,21 +179,17 @@ void MaemoDeviceConfigurations::load()
MaemoDeviceConfigurations::DeviceConfig MaemoDeviceConfigurations::find(const QString &name) const
{
qDebug("%s: Looking for name %s", Q_FUNC_INFO, qPrintable(name));
QList<DeviceConfig>::ConstIterator resultIt =
std::find_if(m_devConfigs.constBegin(), m_devConfigs.constEnd(),
DevConfNameMatcher(name));
qDebug("Found: %d", resultIt != m_devConfigs.constEnd());
return resultIt == m_devConfigs.constEnd() ? DeviceConfig() : *resultIt;
}
MaemoDeviceConfigurations::DeviceConfig MaemoDeviceConfigurations::find(int id) const
{
qDebug("%s: Looking for id %d", Q_FUNC_INFO, id);
QList<DeviceConfig>::ConstIterator resultIt =
std::find_if(m_devConfigs.constBegin(), m_devConfigs.constEnd(),
DevConfIdMatcher(id));
qDebug("Found: %d", resultIt != m_devConfigs.constEnd());
return resultIt == m_devConfigs.constEnd() ? DeviceConfig() : *resultIt;
}