Parameters

The parameters are explained as follows:

name

An optional symbol, starting in column 1, that is the name on the IWMMSTRT macro invocation. The name must conform to the rules for an ordinary assembler language symbol.

,ARRIVALTIME=arrivaltime

,ARRIVALTIME=NO_ARRIVALTIME

An optional input parameter, which contains a timestamp in STCK format. This timestamp is subtracted from the current timestamp and assigned as queued time to the work unit. For example, you may use this parameter, if the work unit is started by receipt of a message from a queue and you know the put time (the timestamp when the message has been put onto the queue). The default is NO_ARRIVALTIME which indicates that parameter ARRIVALTIME has not been specified.

To code: Specify the RS-type address, or address in register (2)-(12), of an 8-character field.

,END_FLOW=NO

,END_FLOW=YES

An optional parameter, which indicates the completion of a message flow. The default is END_FLOW=NO.

,END_FLOW=NO

indicates that a message flow has not completed.

,END_FLOW=YES

indicates that a message flow has completed. Specify END_FLOW=YES, if you know that this work unit is the last one in a work unit flow. This indication cannot be cleared, if it has been set.

,EWLM_RCVD_CORR=ewlm_rcvd_corr

,EWLM_RCVD_CORR=NO_EWLM_RCVD_CORR

When EWLM_S_CURCORR=ewlm_s_curcorr is specified, an optional input parameter, which contains a cross platform Enterprise Workload Management (EWLM) correlator received from another application. Normally this is a received correlator which has the independent flag and the asynchronous flag set. It should not be passed to the EWLM_S_PACORR or the EWLM_S_CURCORR parameter. If you pass this correlator to one of them then the started work unit is not reclassified and runs under the classification of this correlator. When you receive a correlator with the independent flag set, you should:

1. Reclassify the work unit by issuing IWM4CLSY EWLM_CORR=r_corr EWLM_CHCORR=c_corr. r_corr is the received correlator and c_corr is the correlator created by IWM4CLSY.
2. Start the work unit by issuing IWMMSTRT EWLM_S_CURCORR=c_corr EWLM_RCVD_CORR=r_corr .

The default is NO_EWLM_RCVD_CORR which indicates that parameter EWLM_RCVD_CORR has not been specified.

To code: Specify the RS-type address, or address in register (2)-(12), of a character field.

,EWLM_S_CURCORR=ewlm_s_curcorr

A required input parameter which contains a cross-platform Enterprise Workload Management (EWLM) correlator for the current application. The correlator passed to this parameter is used as the current correlator of this work unit. It has usually been created by means of a previous IWM4CLSY call with the EWLM_CHCORR parameter.

To code: Specify the RS-type address, or address in register (2)-(12), of a character field.

,EWLM_S_PACORR=ewlm_s_pacorr

A required input parameter which contains a cross-platform Enterprise Workload Management (EWLM) parent correlator received from another application.

To code: Specify the RS-type address, or address in register (2)-(12), of a character field.

,MF=S

,MF=(L,list addr)

,MF=(L,list addr,attr)

,MF=(L,list addr,0D)

,MF=(E,list addr)

,MF=(E,list addr,COMPLETE)

An optional input parameter that specifies the macro form.

Use MF=S to specify the standard form of the macro, which builds an inline parameter list and generates the macro invocation to transfer control to the service. MF=S is the default.

Use MF=L to specify the list form of the macro. Use the list form together with the execute form of the macro for applications that require reentrant code. The list form defines an area of storage that the execute form uses to store the parameters. Only the PLISTVER parameter may be coded with the list form of the macro.

Use MF=E to specify the execute form of the macro. Use the execute form together with the list form of the macro for applications that require reentrant code. The execute form of the macro stores the parameters into the storage area defined by the list form, and generates the macro invocation to transfer control to the service.

,list addr

The name of a storage area to contain the parameters. For MF=S and MF=E, this can be an RS-type address or an address in register (1)-(12).

,attr

An optional 1- to 60-character input string that you use to force boundary alignment of the parameter list. Use a value of 0F to force the parameter list to a word boundary, or 0D to force the parameter list to a doubleword boundary. If you do not code attr, the system provides a value of 0D.

,COMPLETE

Specifies that the system is to check for required parameters and supply defaults for omitted optional parameters.

MONTKN=montkn

A required input parameter, which contains the delay monitoring token

To code: Specify the RS-type address, or address in register (2)-(12), of a 32-bit field.

,MSG_RECEIVED=NO

,MSG_RECEIVED=YES

An optional parameter, which indicates whether this work unit has been started as a result of a receipt of a message. The default is MSG_RECEIVED=NO.

,MSG_RECEIVED=NO

indicates that this work unit has not been started by receipt of a message.

,MSG_RECEIVED=YES

indicates that this work unit has been started as a result of a receipt of a message.

,PLISTVER=IMPLIED_VERSION

,PLISTVER=MAX

,PLISTVER=0

An optional input parameter that specifies the version of the macro. PLISTVER determines which parameter list the system generates. PLISTVER is an optional input parameter on all forms of the macro, including the list form. When using PLISTVER, specify it on all macro forms used for a request and with the same value on all of the macro forms. The values are:

• IMPLIED_VERSION, which is the lowest version that allows all parameters specified on the request to be processed. If you omit the PLISTVER parameter, IMPLIED_VERSION is the default.
• MAX, if you want the parameter list to be the largest size currently possible. This size might grow from release to release and affect the amount of storage that your program needs.

  If you can tolerate the size change, IBM® recommends that you always specify PLISTVER=MAX on the list form of the macro. Specifying MAX ensures that the list-form parameter list is always long enough to hold all the parameters you might specify on the execute form, when both are assembled with the same level of the system. In this way, MAX ensures that the parameter list does not overwrite nearby storage.

• 0, if you use the currently available parameters.

To code: Specify one of the following:

• IMPLIED_VERSION
• MAX
• A decimal value of 0

,RETCODE=retcode

An optional output parameter into which the return code is to be copied from GPR 15.

To code: Specify the RS-type address of a fullword field, or register (2)-(12).

,RSNCODE=rsncode

An optional output parameter into which the reason code is to be copied from GPR 0.

To code: Specify the RS-type address of a fullword field, or register (2)-(12).