public void NotifyChange(out object ioRequest, NtHandle handle, NotifyChangeFilter completionFilter, bool watchTree, int outputBufferSize, OnNotifyChangeCompleted onNotifyChangeCompleted, object context)
{
throw new NotImplementedException();
}
public NTStatus NotifyChange(out object ioRequest, object handle, NotifyChangeFilter completionFilter, bool watchTree, int outputBufferSize, OnNotifyChangeCompleted onNotifyChangeCompleted, object context)
{
byte[] buffer = new byte[outputBufferSize];
ManualResetEvent requestAddedEvent = new ManualResetEvent(false);
PendingRequest request = new PendingRequest();
Thread m_thread = new Thread(delegate()
{
request.FileHandle = (IntPtr)handle;
request.ThreadID = ThreadingHelper.GetCurrentThreadId();
m_pendingRequests.Add(request);
// The request has been added, we can now return STATUS_PENDING.
requestAddedEvent.Set();
NTStatus status = NtNotifyChangeDirectoryFile((IntPtr)handle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, out request.IOStatusBlock, buffer, (uint)buffer.Length, completionFilter, watchTree);
if (status == NTStatus.STATUS_SUCCESS)
{
int length = (int)request.IOStatusBlock.Information;
buffer = ByteReader.ReadBytes(buffer, 0, length);
}
else
{
const NTStatus STATUS_ALERTED = (NTStatus)0x00000101;
const NTStatus STATUS_OBJECT_TYPE_MISMATCH = (NTStatus)0xC0000024;
buffer = new byte[0];
if (status == STATUS_OBJECT_TYPE_MISMATCH)
{
status = NTStatus.STATUS_INVALID_HANDLE;
}
else if (status == STATUS_ALERTED)
{
status = NTStatus.STATUS_CANCELLED;
}
// If the handle is closing and we had to cancel a ChangeNotify request as part of a cleanup,
// we return STATUS_NOTIFY_CLEANUP as specified in [MS-FSA] 2.1.5.4.
if (status == NTStatus.STATUS_CANCELLED && request.Cleanup)
{
status = NTStatus.STATUS_NOTIFY_CLEANUP;
}
}
onNotifyChangeCompleted(status, buffer, context);
m_pendingRequests.Remove((IntPtr)handle, request.ThreadID);
});
m_thread.Start();
// We must wait for the request to be added in order for Cancel to function properly.
requestAddedEvent.WaitOne();
ioRequest = request;
return(NTStatus.STATUS_PENDING);
}
public NTStatus NotifyChange(out object ioRequest, object handle, NotifyChangeFilter completionFilter, bool watchTree, int outputBufferSize, OnNotifyChangeCompleted onNotifyChangeCompleted, object context)
{
ioRequest = null;
return(NTStatus.STATUS_NOT_SUPPORTED);
}
