- Entry:
- VWAI
- VIT option:
- PSS
- Event:
- VWAIT macro
- VIT processing module:
- ISTRACPS
- Control is returned to:
- Module invoking the INTRACE macro that caused the record to be produced.
This trace record is written when a VTAM® module issues a VWAIT macro. The VWAIT macro generates a system WAIT event.
If the "last address in ECB list" field is not 0,
then this is a wait on an ECB list. Note that an ECB list is a list
of the addresses of ECBs, not a list of ECBs. 
- Byte (hex)
- Contents
- 00–03
- Record ID: C"VWAI"
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05–07
- 0
- 08–0B
- Address of the last pointer in an ECB list, or 0. If this field is 0, it implies that the previous field points to an ECB instead of an ECB list.
- 0C–0F
- Address of the ECB that is being waited on, or (if the next field is nonzero) the address of an ECB list
- 10–17
- Subtask name
- 18–1B
- Address of the issuer of the VWAIT macro
- 1C–1F
- 0