public void MergeStores()
{
var newMemoryStore = new PropertyDatabaseMemoryStore();
using (m_MemoryStore.LockUpgradeableRead())
using (m_FileStore.LockUpgradeableRead())
using (var newMemoryStoreView = (PropertyDatabaseMemoryStoreView)newMemoryStore.GetView())
{
// Merge both stores
newMemoryStoreView.MergeWith(m_FileStoreView);
newMemoryStoreView.MergeWith(m_MemoryStoreView);
// Write new memory store to file.
var tempFilePath = GetTempFilePath(m_FileStore.filePath);
newMemoryStoreView.SaveToFile(tempFilePath);
// Swap file store with new one
m_FileStore.SwapFile(tempFilePath);
// Clear the memory store after file was swapped. If you do it before, you risk
// entering a state where another thread could try to read between the moment the clear is done
// and the new file is written and opened.
m_MemoryStoreView.Clear();
}
}
public PropertyDatabaseView(PropertyDatabase propertyDatabase, PropertyDatabaseVolatileMemoryStore volatileMemoryStore, PropertyDatabaseMemoryStore memoryStore, PropertyDatabaseFileStore fileStore, PropertyStringTable stringTable, bool delayedSync)
{
m_PropertyDatabase = propertyDatabase;
m_MemoryStore = memoryStore;
m_FileStore = fileStore;
m_VolatileMemoryStoreView = (PropertyDatabaseVolatileMemoryStoreView)volatileMemoryStore.GetView();
m_MemoryStoreView = (PropertyDatabaseMemoryStoreView)memoryStore.GetView();
m_FileStoreView = (PropertyDatabaseFileStoreView)fileStore.GetView();
m_StringTableView = stringTable.GetView(delayedSync);
m_Disposed = false;
m_DelayedSync = delayedSync;
}