IBM SC33-1683-02 - Manual (Page 404)

The DTR transaction definition provides common attributes for transactions that are
to be dynamically routed and which do not have a specific transaction definition. It
is specified on the DTRTRAN system initialization parameter; the CICS-supplied
default definition is CRTX.
INQUIRE_DTRTRAN
DFHXMSRX [CALL,]
[CLEAR,]
[IN,
FUNCTION(INQUIRE_DTRTRAN),]
[OUT,
DTRTRAN(name4),
RESPONSE (name1 | *),
REASON (name1 | *)]
DTRTRAN(name4)
returns the name of the DTR transaction definition to used for routing
transactions that are not defined by an explicit transaction resource definition.
name4
The name of a 4-byte location that is to receive the name of the DTR
transaction definition. If 'NO' was specified on the DTRTRAN system
initialization parameter, 'NO' will be placed in this field.
RESPONSE and REASON values for INQUIRE_DTRTRAN:
RESPONSE REASON
OK None
DISASTER ABEND
LOGIC_ERROR
LOOP
INVALID INVALID_FUNCTION
KERNERROR None
PURGED None
The INQUIRE_MXT call
The INQUIRE_MXT function is provided on the DFHXMSRX macro call. Its purpose
is to provide current value of the MXT parameter.
INQUIRE_MXT
DFHXMSRX [CALL,]
[CLEAR,]
[IN,
FUNCTION(INQUIRE_MXT),]
[OUT,
CURRENT_ACTIVE(name4 | (Rn) ),
MXT_LIMIT(name4 | (Rn)),
MXT_QUEUED(name4 | (Rn) ),
TCLASS_QUEUED(name4 | (Rn) ),
RESPONSE (name1 | *),
REASON (name1 | *)]
CURRENT_ACTIVE(name4 | (Rn))
returns the current number of all active user tasks.
transaction management functions
372 CICS TS for OS/390: CICS Customization Guide