//public static void UpdateTaskState(TaskCache cache)
public void UpdateStateAsync()
{
//var cache = GetById(taskId);
// todo : PFX.Task.Run in .Net 4.5
PFX.Task.Factory.StartNew(() =>
{
if (!this._isUpdating && (this._lastUpdateTime + UPDATE_INTERVAL < DateTime.Now || DateTime.Now < this._lastUpdateTime))
{
bool wasFinished = false;
bool isThisThreadUpdating = false;
lock (this.StateLock)
{
if (!this._isUpdating && (this._lastUpdateTime + UPDATE_INTERVAL < DateTime.Now || DateTime.Now < this._lastUpdateTime))
{
this._isUpdating = true;
isThisThreadUpdating = true;
wasFinished = this.StateInfo.IsFinished();
}
}
if (isThisThreadUpdating)
{
try
{
if (!wasFinished)
{
var timer = System.Diagnostics.Stopwatch.StartNew();
var newState = this.Context.Controller.GetTaskStateInfo(this.Context);
timer.Stop();
if (timer.Elapsed > UPDATE_DURATION_TO_WARN)
{
Log.Warn(String.Format("Task {0} update took {1} seconds", this.Context.TaskId, timer.Elapsed.TotalSeconds)); // Context.TaskId is immutable
}
SetState(newState);
if (gcCollector != null)
{
gcCollector.push(this.Context, this.Context.TaskId, newState);
}
}
}
catch (Exception e)
{
SetState(TaskState.Failed, e.Message); // todo : retries
Log.Error(String.Format("Exception on update task {0}: {1}", this.Context.TaskId, e)); // Context.TaskId is immutable
throw;
}
finally
{
lock (this.StateLock)
{
this._lastUpdateTime = DateTime.Now;
this._isUpdating = false;
}
}
}
}
});
}
