IBM SC33-1683-02 - Manual (Page 189)

UEPMRTYP
Address of the halfword monitoring record type. If the value is 3,
the type is performance class. If the value is 4, the type is
exception class.
UEPMRLEN
Address of the fullword monitoring record length.
UEPMREC
Address of monitoring record, whose length is addressed by the
parameter UEPMRLEN.
UEPSRCTK
Address of the MVS workload manager service reporting class
token for the current transaction. If CICS support for MVS workload
management is not available, this token is null.
UEPMPREC
Address of the monitoring performance record. This field has
meaning only for performance class records. If the monitoring
record type is exception class (see the UEPMRTYP parameter), this
field is set to 0. The performance record addressed by this
parameter must be mapped using the DFHMNTDS dsect, and must
not be mapped using the UEPDICT and UEPDICTE dictionary
parameters.
Return codes
UERCNORM
Continue processing.
UERCBYP
Suppress monitor record output.
UERCPURG
Task purged during XPI call.
XPI calls
WAIT_MVS can be used. Do not use any other calls.
monitoring domain exit
Chapter 1. Global user exit programs 157