private static String PollTaskForResult(IXenConnection connection, ref Session session,
HTTP.FuncBool cancellingDelegate, XenRef <Task> task)
{
//Program.AssertOffEventThread();
task_status_type status;
do
{
if (cancellingDelegate != null && cancellingDelegate())
{
throw new XenAdmin.CancelledException();
}
System.Threading.Thread.Sleep(500);
status = (task_status_type)Task.DoWithSessionRetry(connection, ref session,
(Task.TaskStatusOp)Task.get_status, task.opaque_ref);
}while (status == task_status_type.pending || status == task_status_type.cancelling);
if (cancellingDelegate != null && cancellingDelegate())
{
throw new XenAdmin.CancelledException();
}
if (status == task_status_type.failure)
{
throw new Failure(Task.get_error_info(session, task));
}
else
{
return(Task.get_result(session, task));
}
}
private static String PollTaskForResult(IXenConnection connection, ref Session session,
HTTP.FuncBool cancellingDelegate, XenRef<Task> task, bool timeout = false)
{
//Program.AssertOffEventThread();
task_status_type status;
int tries = POLL_FOR_TASK_RESULT_TIMEOUT / POLL_FOR_TASK_RESULT_SLEEP_INTERVAL;
do
{
if (cancellingDelegate != null && cancellingDelegate())
throw new XenAdmin.CancelledException();
System.Threading.Thread.Sleep(POLL_FOR_TASK_RESULT_SLEEP_INTERVAL);
tries--;
status = (task_status_type)Task.DoWithSessionRetry(connection, ref session,
(Task.TaskStatusOp)Task.get_status, task.opaque_ref);
}
while ((status == task_status_type.pending || status == task_status_type.cancelling) && (!timeout || tries > 0));
if (cancellingDelegate != null && cancellingDelegate())
throw new XenAdmin.CancelledException();
if (status == task_status_type.failure)
{
throw new Failure(Task.get_error_info(session, task));
}
else
{
return Task.get_result(session, task);
}
}