private TaskResult PerformTask <T>(TaskBase <T> task, T argument)
{
CancellableTaskServiceEventArgs e = new CancellableTaskServiceEventArgs((ITask)task);
this.OnExecuting(e);
if (e.Cancel)
{
return(TaskResult.Cancelled);
}
this.globallyRedoableTasks.Clear();
this.globallyUndoableTasks.Clear();
this.globallyRepeatableTasks.AddLast((IInternalTask)task);
TaskResult taskResult = task.PerformTask((object)argument, TaskMode.FirstTime);
this.TrimIfRequired((object)null);
this.OnExecuted(new TaskServiceEventArgs((ITask)task));
return(taskResult);
}
private static void ExecuteInParallel(Dictionary <TaskBase <T>, T> taskDictionary, TaskMode taskMode)
{
List <TaskBase <T> > performedTasks = new List <TaskBase <T> >();
object performedTasksLock = new object();
List <Exception> exceptions = new List <Exception>();
object exceptionsLock = new object();
Dictionary <KeyValuePair <TaskBase <T>, T>, AutoResetEvent> dictionary = taskDictionary.ToDictionary((KeyValuePair <TaskBase <T>, T> x) => x, (KeyValuePair <TaskBase <T>, T> x) => new AutoResetEvent(false));
foreach (KeyValuePair <TaskBase <T>, T> current in taskDictionary)
{
AutoResetEvent autoResetEvent = dictionary[current];
IInternalTask task = current.Key;
TaskBase <T> undoableTask = current.Key;
T arg = current.Value;
ThreadPool.QueueUserWorkItem(delegate(object param0)
{
try
{
task.PerformTask(arg, taskMode);
lock (performedTasksLock)
{
performedTasks.Add(undoableTask);
}
}
catch (Exception item)
{
lock (exceptionsLock)
{
exceptions.Add(item);
}
}
autoResetEvent.Set();
});
}
foreach (AutoResetEvent current2 in dictionary.Values)
{
current2.WaitOne();
}
if (exceptions.Count > 0)
{
throw new CompositeException("Unable to undo tasks", exceptions);
}
}