/// <summary>
/// Method that refreshes the Cache by uploading all modified changes and then downloading the
/// server changes.
/// </summary>
public void RefreshAsync()
{
if (this.IsBusy)
{
throw CacheControllerException.CreateCacheBusyException();
}
this.refreshStats = new CacheRefreshStatistics();
this.StartAsyncWorkerManager();
// Enqueue an async operation
this._asyncWorkManager.AddWorkRequest(new AsyncWorkRequest(RefreshWorker, RefreshWorkerCompleted, null));
}
/// <summary>
/// Instantiates a new AsyncWorkerManager object that will be used for the current sync session
/// </summary>
void StartAsyncWorkerManager()
{
if (this._asyncWorkManager == null)
{
lock (this._lockObject)
{
if (this._asyncWorkManager == null)
{
this._asyncWorkManager = new AsyncWorkerManager(OnRefreshCancelled);
this._controllerBehavior.Locked = true;
// Reset Cancelled flag
this.Cancelled = false;
}
else
{
// This means two different threads raced and called RefreshAsync which wasnt caught by the IsBusy check
throw CacheControllerException.CreateCacheBusyException();
}
}
}
}
