z/OS MVS Programming: Workload Management Services
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Parameters

z/OS MVS Programming: Workload Management Services
SC34-2663-00

Parameters

The parameters are explained as follows:

name
An optional symbol, starting in column 1, that is the name on the IWM4AEDF macro invocation. The name must conform to the rules for an ordinary assembler language symbol.
,APPLENV=applenv
When FUNC=ADD is specified, a required input parameter, which contains the name of the dynamic application environment.

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

,APPLENV=applenv
When FUNC=DELETE is specified, a required input parameter, which contains the name of the dynamic application environment.

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

,APPLENV=applenv
When FUNC=MODIFY is specified, a required input parameter, which contains the name of the static or dynamic application environment.

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

CONNTKN=conntkn
A required input parameter, which contains the connect token returned by the IWM4CON macro.

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

,DISTRIBUTE_WORK=FIRST_AVAILABLE
,DISTRIBUTE_WORK=ROUND_ROBIN
When FUNC=ADD is specified, an optional parameter that controls how workload management resumes bound server spaces that are waiting for work The default is DISTRIBUTE_WORK=FIRST_AVAILABLE.
,DISTRIBUTE_WORK=FIRST_AVAILABLE
Workload management wakes up the server space that has been suspended first (default).
,DISTRIBUTE_WORK=ROUND_ROBIN
Workload management wakes up the server space that has the smallest number of affinities. If there are several server spaces with the same number of affinities, workload management will start the server space with the smallest number of active server tasks.
,DISTRIBUTE_WORK=FIRST_AVAILABLE
,DISTRIBUTE_WORK=ROUND_ROBIN
When FUNC=MODIFY is specified, an optional parameter that controls how workload management resumes bound server spaces that are waiting for work The default is DISTRIBUTE_WORK=FIRST_AVAILABLE.
,DISTRIBUTE_WORK=FIRST_AVAILABLE
Workload management wakes up the server space that has been suspended first (default).
,DISTRIBUTE_WORK=ROUND_ROBIN
Workload management wakes up the server space that has the smallest number of affinities. If there are several server spaces with the same number of affinities, workload management will start the server space with the smallest number of active server tasks.
,FUNC=ADD
,FUNC=DELETE
,FUNC=MODIFY
A required parameter that indicates how the caller uses the service
,FUNC=ADD
indicates that the caller wants to add a dynamic application environment to WLM.
,FUNC=DELETE
indicates that the caller wants to delete its interest in the dynamic application environment.
,FUNC=MODIFY
indicates that the caller wants to redefine the method how server spaces should be resumed for static and dynamic application environments.
,JCLPARMS=jclparms
,JCLPARMS=0
When FUNC=ADD is specified, an optional input parameter, which contains the parameters which are passed to the start procedure of the server manager address spaces by WLM. The default is 0.

To code: Specify the RS-type address, or address in register (2)-(12), of a 115-character field.

,JCLPROC=jclproc
When FUNC=ADD is specified, a required input parameter, which contains the name of the start procedure which is used by WLM to start server manager address spaces for the application environment.

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

,JOBSPACE=NO
,JOBSPACE=YES
When FUNC=ADD is specified, an optional parameter, which specifies whether the server address spaces for the application environment should be started as 'SYSTEM' or 'JOB' address spaces. System address spaces are defined in the RACF STARTED class as jobname.jobname. Job address spaces are defined in the RACF STARTED class as procname.jobname. The default is JOBSPACE=NO.
,JOBSPACE=NO
Server address spaces will be started as system address spaces. This is the default.
,JOBSPACE=YES
Server address spaces will be started as job address spaces.
,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.
,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. If you specify 15, GPR15, REG15, or R15 (within or without parentheses), the value will be left in GPR 15.

To code: Specify the RS-type address of a fullword field, or register (2)-(12) or (15), (GPR15), (REG15), or (R15).

,RSNCODE=rsncode
An optional output parameter into which the reason code is to be copied from GPR 0. If you specify 0, 00, GPR0, GPR00, REG0, REG00, or R0 (within or without parentheses), the value will be left in GPR 0.

To code: Specify the RS-type address of a fullword field, or register (0) or (2)-(12), (00), (GPR0), (GPR00), REG0), (REG00), or (R0).

,SELECT_POLICY=select_policy
,SELECT_POLICY=0
When FUNC=ADD is specified, an optional input parameter, which tells WLM how to select work if work requests are directly routed to the server address space. Only 0,1 and 2 are valid select policies. 0 is the default which is also selected if an invalid policy is specified.

The select policy options 0,1 and 2 have the following meaning:

  • 0 Default, the oldest request on either the service class or server address space queue is selected first.
  • 1 The request on the server address space queue (if present) is selected first independently of the times the requests have been inserted.
  • 2 The request on the service class queue is always selected first.

The default is 0.

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

,SINGLE_SERVER=NO
,SINGLE_SERVER=YES
When FUNC=ADD is specified, an optional parameter indicating whether one or multiple server spaces should be started for the application environment The default is SINGLE_SERVER=NO.
,SINGLE_SERVER=NO
Multiple server spaces should be started for the application environment (default).
,SINGLE_SERVER=YES
Only one server space should be started for the application environment.
,STATIC=NO
,STATIC=YES
When FUNC=MODIFY is specified, an optional parameter that controls whether a static or dynamic application environment should be updated The default is STATIC=NO.
,STATIC=NO
indicates that the caller wants to modify a dynamic application environment (default).
,STATIC=YES
indicates that the caller wants to modify a static application environment.

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