/**
* Try to cancel an async put request.
*/
private void PutCancellationHandler(object _putNode, bool canceling)
{
LinkedListNode <AsyncPut> putNode = (LinkedListNode <AsyncPut>)_putNode;
AsyncPut put = null;
lock (theLock) {
if (!putNode.Value.done)
{
asyncPuts.Remove(putNode);
put = putNode.Value;
put.done = true;
}
}
if (put != null)
{
// Dispose resources associated with this async put request.
put.Dispose(canceling);
// Complete the underlying task properly.
if (canceling)
{
put.SetCanceled();
}
else
{
put.SetResult(false);
}
}
}
/**
* Try to cancel an asynchronous put represented by its task.
*/
private bool CancelPutByTask(Task <bool> putTask)
{
AsyncPut put = null;
lock (theLock) {
foreach (AsyncPut _put in asyncPuts)
{
if (_put.Task == putTask)
{
put = _put;
asyncPuts.Remove(_put);
break;
}
}
}
if (put != null)
{
put.Dispose();
put.SetCanceled();
}
return(put != null);
}