internal override object CreateInstance(Type interfaceType, ComponentContainer componentContainer, Action <string> progressCallback, ComponentDescriptor[] resolveStack)
{
//We need to seperate locking on the instance reference collection (new wrapper) and setting/add-ref-ing because otherwise we can dead-lock
SingletonComponentInstance.instanceLock.Wait();
bool MustCreate = false;
try
{
try
{
if (this.InstanceReference == null)
{
this.InstanceReference = new SingletonInstanceWrapper();
MustCreate = true;
}
this.InstanceReference.Lock.Wait();
}
finally
{
SingletonComponentInstance.instanceLock.Release();
}
if (MustCreate)
{
this.InstanceReference.SetInstance(this.DoCreateInstance(interfaceType, componentContainer, progressCallback, resolveStack));
}
return(this.InstanceReference.AddReference(componentContainer));
}
finally
{
this.InstanceReference?.Lock.Release();
}
}
internal override void Dispose(ComponentContainer componentContainer)
{
if (this.InstanceReference != null &&
this.InstanceReference.ReleaseReference(componentContainer))
{
(this.InstanceReference.Target as IDisposable)?.Dispose();
this.InstanceReference = null;
Debug.WriteLine($"Disposing singleton component instance {this.Name}");
base.Dispose(componentContainer);
}
}
