Filter
Top Products
SIGNOFF (X'02')
Call sign-off program.
On entry to DFHTEP, the above flags represent the default actions set by
DFHTACP. The write-abend bit (communication area field ABORTWR) and
the abend-task bit (communication area field ABENDT) are always set if the
place-line-out-of-service bit (X'80') is set; but both bits are suppressed if
“dummy terminal” is indicated (see Resetting the flags in the user action
byte, TEPCAACT).
On return to DFHTACP, the flags represent the actions as modified by
DFHTEP.
TEPCATID
Contains the identity of the terminal in error.
TEPCATDB
Contains the time of day when the error occurred, in binary format.
Resetting the flags in the user action byte, TEPCAACT
The following factors should be considered when altering the action bits in
TEPCAACT:
v You should consider how to preserve data security. For example, if a terminal is
put out of service for some time (until the cause of the failure is removed) the
signon information is still in the TCTTE when the terminal is put back into
service, although the original operator may no longer be present. To prevent a
possible security violation, you can set the SIGNOFF bit to sign off the terminal.
v For TCAM unsolicited input errors with either the terminal out of service or in
receive-only state, a loop occurs if the default action of purging the incoming
message does not occur and the status of the terminal is not altered.
v The dummy terminal indicator at TCTLEPF2 is set on errors from which no
specific terminal is indicated. Therefore, if a dummy terminal is indicated, abend
task and abend write are not set (see below). The dummy terminal is only used
to identify the line.
v The abend-task bit (X'10' in TEPCAACT) is always associated with two other
bits as part of TACP’s abend transaction processing. These other bits are
nonpurgeable task and abend write (X'40' and X'08' respectively, both in
TEPCAACT).
v Abend write is always set on at the same time as abend task. It has the effect of
clearing the TCTTE of the original write request indicators, if the error being
processed occurred on a TC WRITE.
v Nonpurgeable task is set on if a transaction is currently associated with the
terminal, and the transaction ID was specified with TPURGE=NO.
None of the abend-task, abend-write, or nonpurgeable-task bits is set if the dummy
terminal indicator is on, even if DFHTACP would normally set abend task as the
default for the error being processed. Therefore, the following remarks apply only to
errors related to a real terminal.
v Abend task has no effect if no transaction is associated with the terminal; (except
where a pseudoconversational task is associated with the terminal, in which
case, the next transid is cleared). Otherwise, if nonpurgeable task is indicated,
the transaction remains attached to the terminal (normally in SUSPEND state)
user-written terminal error programs
440
CICS TS for OS/390: CICS Customization Guide