gtps2m4bACF/SNA Data Communications Reference

TPF Inbound Message Flow Extensions

Figure 102 illustrates the extended TPF inbound message flow.

Figure 102. Extended TPF Inbound Message Flow


The PSV name is passed to the exit as a way of identifying the functions and processing required. The PSV name may be used to infer the characteristics of the input message, based upon its source, because each PSV name is unique. A PSV name may share a process with other PSVs or may be associated with a unique process.

When control is returned to COMMSRCE from the exit routine, COMMSRCE then: