public static void PerformAsyncProgress <T1, T2>(this T1 cmdlet, IProgressKeeper keeper, IList <Task <T2> > taskList,
Func <T2, ErrorRecord> actionOnError,
int threadSleep = 100)
where T1 : Cmdlet
{
ProgressRecord pr = keeper.GetRecord(0);
cmdlet.WriteProgress(pr);
while (taskList.Count > 0)
{
for (int i = taskList.Count - 1; i >= 0; i--)
{
Task <T2> task = taskList[i];
if (task.IsCompleted)
{
if ((task.IsFaulted || task.IsCanceled) && task.Result != null)
{
cmdlet.WriteError(actionOnError(task.Result));
}
else
{
WriteExtensions.WriteError(cmdlet, "No task result was received.", typeof(InvalidOperationException), ErrorCategory.InvalidOperation, task);
}
}
}
Thread.Sleep(threadSleep);
keeper.Continue(keeper.TotalCount - taskList.Count, ref pr);
cmdlet.WriteProgress(pr);
}
}
public static List <T2> PerformAsyncProgressAndReturn <T1, T2>(this T1 cmdlet, IProgressKeeper keeper, IList <Task <T2> > taskList,
Func <Task <T2>, bool> successCondition, Func <Task <T2>, ErrorRecord> actionOnError,
int threadSleep = 100)
where T1 : Cmdlet
{
var list = new List <T2>(taskList.Count);
ProgressRecord pr = keeper.GetRecord(0);
cmdlet.WriteProgress(pr);
while (taskList.Count > 0)
{
for (int i = taskList.Count - 1; i >= 0; i--)
{
Task <T2> task = taskList[i];
if (task.IsCompleted)
{
if (successCondition(task))
{
list.Add(task.Result);
}
else
{
cmdlet.WriteError(actionOnError(task));
}
taskList.Remove(task);
}
}
Thread.Sleep(threadSleep);
keeper.ContinueReverse(taskList.Count, ref pr);
cmdlet.WriteProgress(pr);
}
keeper.Finish(ref pr);
cmdlet.WriteProgress(pr);
return(list);
}