public void QueueCheckForFilesBeingOpen(ImmutableArray <string> newFileNames)
{
ForegroundThreadAffinitizedObject.ThisCanBeCalledOnAnyThread();
var shouldStartTask = false;
lock (_gate)
{
// If we've already decided to enumerate the full table, nothing further to do.
if (!_justEnumerateTheEntireRunningDocumentTable)
{
// If this is going to push us over our threshold for scanning the entire table then just give up
if ((_fileNamesToCheckForOpenDocuments?.Count ?? 0) + newFileNames.Length > CutoffForCheckingAllRunningDocumentTableDocuments)
{
_fileNamesToCheckForOpenDocuments = null;
_justEnumerateTheEntireRunningDocumentTable = true;
}
else
{
if (_fileNamesToCheckForOpenDocuments == null)
{
_fileNamesToCheckForOpenDocuments = new HashSet <string>(newFileNames);
}
else
{
foreach (var filename in newFileNames)
{
_fileNamesToCheckForOpenDocuments.Add(filename);
}
}
}
}
if (!_taskPending)
{
_taskPending = true;
shouldStartTask = true;
}
}
if (shouldStartTask)
{
var asyncToken = _asyncOperationListener.BeginAsyncOperation(nameof(QueueCheckForFilesBeingOpen));
Task.Run(async() =>
{
await _foregroundAffinitization.ThreadingContext.JoinableTaskFactory.SwitchToMainThreadAsync();
ProcessQueuedWorkOnUIThread();
}).CompletesAsyncOperation(asyncToken);
}
}
