+\begin{tabular}{|lll|}
+\hline
+UPTODATE & remains & UPTODATE\\ \hline
+MODIFIED & becomes & UPTODATE\\ \hline
+OUTOFDATE & remains & OUTOFDATE\\ \hline
+\end{tabular}
+
+The new output status is:
+
+\begin{tabular}{|ll|}
+\hline
+OUTOFDATE & if any input is OUTOFDATE\\
+& or bbBoxProcessModeIsAlways() is true\\ \hline
+UPTODATE & in any other case\\ \hline
+\end{tabular}
+
+\bigskip\hrule\begin{verbatim}
+void BlackBox::bbComputePostProcessStatus()
+{
+ // A priori, the new output status is UPTODATE
+ // except if the BoxProcessMode is always
+ IOStatus new_output_status = UPTODATE;
+ if (bbBoxProcessModeIsAlways()) new_output_status = OUTOFDATE;
+
+ // Update the input statuses
+ InputConnectorMapType::iterator i;
+ for ( i = bbGetInputConnectorMap().begin();
+ i!= bbGetInputConnectorMap().end(); ++i)
+ {
+ IOStatus t = i->second->GetStatus();
+ // If any input is OUTOFDATE then the outputs also are
+ if (t == OUTOFDATE) new_output_status = OUTOFDATE;
+ // A previously MODIFIED status turns to UPTODATE
+ if (t==MODIFIED) i->second->SetStatus(UPTODATE);
+ }
+
+ // Update the output statuses
+ OutputConnectorMapType::iterator o;
+ for ( o = bbGetOutputConnectorMap().begin();
+ o!= bbGetOutputConnectorMap().end(); ++o)
+ {
+ o->second->SetStatus(new_output_status);
+ }