/// <summary>
/// This method is called by UpdateGraphAsyncTask in the context of
/// ISchedulerThread to kick start an update through LiveRunner.
/// </summary>
/// <param name="graphSyncData">The GraphSyncData that was generated by
/// a prior call to ComputeSyncData at the time UpdateGraphAsyncTask was
/// scheduled.</param>
///
public void UpdateGraphImmediate(GraphSyncData graphSyncData)
{
// NOTE: We will not attempt to catch any unhandled exception from
// within the execution. Such exception, if any, will be caught by
// DynamoScheduler.ProcessTaskInternal.
liveRunnerServices.UpdateGraph(graphSyncData);
}
/// <summary>
/// Update graph with graph sync data.
/// </summary>
/// <param name="fatalException">The exception that is not handled
/// anywhere within the LiveRunnerServices.UpdateGraph method. This
/// parameter will always be set to null if there is no unhandled
/// exception thrown from within the UpdateGraph call.</param>
/// <returns>Returns true if any update has taken place, or false
/// otherwise.</returns>
///
public bool UpdateGraph(ref Exception fatalException)
{
lock (MacroMutex)
{
bool updated = false;
fatalException = null;
ClearWarnings();
lock (graphSyncDataQueue)
{
while (graphSyncDataQueue.Count > 0)
{
try
{
var data = graphSyncDataQueue.Dequeue();
liveRunnerServices.UpdateGraph(data);
updated = true;
}
catch (Exception e)
{
// The exception that is not handled within the UpdateGraph
// method is recorded here. The only thing for now is, we
// are only interested in the first unhandled exception.
// This decision may change in the future if we decided to
// clear up "graphSyncDataQueue" whenever there is a fatal
// exception?
//
if (fatalException == null)
{
fatalException = e;
}
dynSettings.DynamoLogger.Log("Update graph failed: " + e.Message);
}
}
}
if (updated)
{
ShowRuntimeWarnings();
}
return(updated);
}
}
