flightsimulatorplatfrom/pilotclient
1
0
Fork 0
mirror of https://github.com/swift-project/pilotclient.git synced 2026-03-22 23:05:36 +08:00
Code Issues Packages Projects Releases Wiki Activity

Store CDataCacheSerializer as a pointer for correct lifetime management

Browse Source
This commit is contained in:
Mat Sutcliffe
2020-03-28 22:04:14 +00:00
parent 0ee522426a
commit e8380173c9
2 changed files with 22 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
src/blackmisc/datacache.cpp
View File

@@ -68,7 +68,7 @@ namespace BlackMisc
CDataCacheRevision *m_rev = nullptr;
};
CDataCache::CDataCache() : CValueCache(1)
CDataCache::CDataCache() : CValueCache(1), m_serializer(new CDataCacheSerializer { this, revisionFileName() })
{
if (! QDir::root().mkpath(persistentStore()))
{
@@ -82,18 +82,23 @@ namespace BlackMisc
changeValuesFromRemote(values, CIdentifier());
});
connect(&m_watcher, &QFileSystemWatcher::fileChanged, this, &CDataCache::loadFromStoreAsync);
connect(&m_serializer, &CDataCacheSerializer::valuesLoadedFromStore, this, &CDataCache::changeValuesFromRemote, Qt::DirectConnection);
connect(m_serializer, &CDataCacheSerializer::valuesLoadedFromStore, this, &CDataCache::changeValuesFromRemote, Qt::DirectConnection);
if (! QFile::exists(revisionFileName())) { QFile(revisionFileName()).open(QFile::WriteOnly); }
m_serializer.loadFromStore({}, false, true); // load pinned values
m_serializer->loadFromStore({}, false, true); // load pinned values
singleShot(0, this, [this] // only start the serializer if the main thread event loop runs
{
m_serializer.start();
m_serializer->start();
m_watcher.addPath(revisionFileName());
loadFromStoreAsync();
});
}
CDataCache::~CDataCache()
{
m_serializer->quitAndWait();
}
CDataCache *CDataCache::instance()
{
static CDataCache cache;
@@ -149,12 +154,12 @@ namespace BlackMisc
void CDataCache::setTimeToLive(const QString &key, int ttl)
{
singleShot(0, &m_serializer, [this, key, ttl] { m_revision.setTimeToLive(key, ttl); });
singleShot(0, m_serializer, [this, key, ttl] { m_revision.setTimeToLive(key, ttl); });
}
void CDataCache::renewTimestamp(const QString &key, qint64 timestamp)
{
singleShot(0, &m_serializer, [this, key, timestamp] { m_revision.overrideTimestamp(key, timestamp); });
singleShot(0, m_serializer, [this, key, timestamp] { m_revision.overrideTimestamp(key, timestamp); });
}
qint64 CDataCache::getTimestampOnDisk(const QString &key)
@@ -164,12 +169,12 @@ namespace BlackMisc
void CDataCache::pinValue(const QString &key)
{
singleShot(0, &m_serializer, [this, key] { m_revision.pinValue(key); });
singleShot(0, m_serializer, [this, key] { m_revision.pinValue(key); });
}
void CDataCache::deferValue(const QString &key)
{
singleShot(0, &m_serializer, [this, key] { m_revision.deferValue(key); });
singleShot(0, m_serializer, [this, key] { m_revision.deferValue(key); });
}
void CDataCache::admitValue(const QString &key, bool triggerLoad)
@@ -180,7 +185,7 @@ namespace BlackMisc
void CDataCache::sessionValue(const QString &key)
{
singleShot(0, &m_serializer, [this, key] { m_revision.sessionValue(key); });
singleShot(0, m_serializer, [this, key] { m_revision.sessionValue(key); });
}
const QString CDataCache::relativeFilePath()
@@ -191,17 +196,17 @@ namespace BlackMisc
void CDataCache::saveToStoreAsync(const BlackMisc::CValueCachePacket &values)
{
singleShot(0, &m_serializer, [this, values]
singleShot(0, m_serializer, [this, values]
{
m_serializer.saveToStore(values.toVariantMap(), getAllValuesWithTimestamps());
m_serializer->saveToStore(values.toVariantMap(), getAllValuesWithTimestamps());
});
}
void CDataCache::loadFromStoreAsync()
{
singleShot(0, &m_serializer, [this]
singleShot(0, m_serializer, [this]
{
m_serializer.loadFromStore(getAllValuesWithTimestamps());
m_serializer->loadFromStore(getAllValuesWithTimestamps());
});
}

5
src/blackmisc/datacache.h
View File

@@ -250,6 +250,9 @@ namespace BlackMisc
Q_OBJECT
public:
//! Destructor.
virtual ~CDataCache() override;
//! Return the singleton instance.
static CDataCache *instance();
@@ -302,7 +305,7 @@ namespace BlackMisc
QFileSystemWatcher m_watcher;
CDataCacheSerializer m_serializer { this, revisionFileName() };
CDataCacheSerializer *m_serializer = nullptr;
CDataCacheRevision m_revision { persistentStore() + "/" };
friend class CDataCacheSerializer; // to access m_revision and protected members of CValueCache
};