Previous topic |
Next topic |
Contents |
Contact z/OS |
Library |
PDF
ISGDGRSRES — Display Global Resource Serialization Resource Exit z/OS MVS Installation Exits SA23-1381-00 |
|
ISGDGRSRES is called for each ENQ resource displayed in a DISPLAY GRS,RES= or CONTENTION command. It allows an application to provide additional information describing the meaning of the ENQ resource name. The parameter list passed to ISGDGRSRES is mapped by ISGYDSPX (DSPX). The parameter list describes an ENQ resource name. Replacing the Exit RoutineFor information regarding dynamic exit routine replacement, see Replacing a Dynamic Exit Routine. Exit Routine EnvironmentISGDGRSRES
receives control in the following environment:
Exit Recovery is as follows.
Exit Routine ProcessingThe exit routine should interrogate the QNAME and RNAME
information that will be displayed. If the exit routine can add information
about the meaning of the QNAME and RNAME for the resource, it can
place:
Programming ConsiderationsObserve
the following conventions when coding a display global resource serialization
exit routine:
Entry SpecificationsThe system passes a ISGYDSPX parameter list (DSPX) to the exit routine. The DSPX contains the QNAME, RNAME, and scope of the resource being displayed. The exit routine can update the resource identifier and information fields for display. Registers at Entry: The contents of the registers on entry to the exit are as follows.
Parameter List Contents: Register 1 contains the address of the exit parameter (DSPX) that is mapped by macro ISGYDSPX. Refer to z/OS MVS Data Areas in z/OS Internet Library at http://www.ibm.com/systems/z/os/zos/bkserv/ for the mapping of the ISGYDSPX data area. Return SpecificationsThe information displayed in the command output will be that from the last exit routine to update the DSPX parameter list. Registers at Exit: Upon return from the exit processing, the register contents must be as follows.
|
Copyright IBM Corporation 1990, 2014
|