private bool ScheduleSubDirectoryTransfer(
SubDirectoryTransfer subDirectoryTransfer,
CancellationToken cancellationToken,
Action persistDirTransfer,
int timeOut)
{
Interlocked.Increment(ref this.outstandingTasks);
Task directoryListTask = null;
try
{
directoryListTask = DirectoryListingScheduler.Instance().Schedule(
subDirectoryTransfer,
cancellationToken,
persistDirTransfer,
timeOut);
}
catch (OperationCanceledException)
{
// Ignore exception
}
catch (ObjectDisposedException)
{
// Ignore exception
}
this.WaitOnSubDirectoryListTask(directoryListTask, subDirectoryTransfer);
return(null != directoryListTask);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (null != this.subDirTransfersCompleteSource)
{
this.subDirTransfersCompleteSource.Task.Wait();
}
if (null != this.transfersCompleteSource)
{
this.transfersCompleteSource.Task.Wait();
}
if (null != this.cancellationTokenSource)
{
this.cancellationTokenSource.Dispose();
this.cancellationTokenSource = null;
}
if (null != this.progressUpdateLock)
{
this.progressUpdateLock.Dispose();
this.progressUpdateLock = null;
}
if (null != this.maxConcurrencyControl)
{
this.maxConcurrencyControl.Dispose();
this.maxConcurrencyControl = null;
}
if (null != this.newAddSubDirResetEventSlim)
{
this.newAddSubDirResetEventSlim.Dispose();
this.newAddSubDirResetEventSlim = null;
}
if (null != this.directoryListingScheduler)
{
this.directoryListingScheduler.Dispose();
this.directoryListingScheduler = null;
}
if (null != this.azureFileDirectorySDDLCache)
{
this.azureFileDirectorySDDLCache.Dispose();
this.azureFileDirectorySDDLCache = null;
}
}
base.Dispose(disposing);
}
private void ResetExecutionStatus()
{
if (null != this.cancellationTokenSource)
{
this.cancellationTokenSource.Dispose();
}
if (null != this.newAddSubDirResetEventSlim)
{
this.newAddSubDirResetEventSlim.Dispose();
}
if (null != directoryListingScheduler)
{
this.directoryListingScheduler.Dispose();
}
this.newAddSubDirResetEventSlim = new ManualResetEventSlim();
this.cancellationTokenSource = new CancellationTokenSource();
this.transfersCompleteSource = new TaskCompletionSource <object>();
this.subDirTransfersCompleteSource = new TaskCompletionSource <object>();
int maxListingThreadCount = 0;
if (TransferManager.Configurations.MaxListingConcurrency.HasValue)
{
maxListingThreadCount = TransferManager.Configurations.MaxListingConcurrency.Value;
}
else
{
#if DOTNET5_4
maxListingThreadCount = 6;
#else
maxListingThreadCount = 2;
#endif
if ((this.Destination.Type == TransferLocationType.LocalDirectory) || (this.Source.Type == TransferLocationType.LocalDirectory))
{
#if DOTNET5_4
maxListingThreadCount = 4;
#else
maxListingThreadCount = 2;
#endif
}
}
directoryListingScheduler = new DirectoryListingScheduler(maxListingThreadCount);
}
public static DirectoryListingScheduler Instance()
{
if (null == SchedulerInstance)
{
lock (SingletonLock)
{
if (null == SchedulerInstance)
{
SchedulerInstance = new DirectoryListingScheduler();
}
}
}
return(SchedulerInstance);
}