Extensions
Functions introduced
A network contains a list of extensions. An extension is a non branching sequence of connected pipeline items. At a branch in a pipeline one extension is continuous across the branch and other extensions terminate at the branch. To decide which extension is continuous across the branch, the analysis performed by
ProPipelineNetworkEval() uses the following rules:
• The extension must have a continuous direction of flow across the branch.
• Of all such possible extensions, the one chosen is the one that gives the smallest change of direction across the branch.
An extension is represented by the opaque pointer ProPextension. The function
ProPnetworkExtensionVisit() visits all the extensions in a network.
The function
ProPextensionFlowGet() tells you the flow direction in relation to the sequence of members in the extension.