Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRSCLIOP
PrologControl Block Contents
Cross Reference
MRSCLIOP Prolog
DSECT NAME - SCLIOP FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRSCLIOP DESCRIPTIVE NAME - Monitor Event Record Domain 2 - Scheduler Domain Record 11 - I/O Priority Change DESCRIPTION - Records I/O Priority change to a user. A user's I/O priority may change when a system change occurs. A system change occurs when the system operator changes the I/O priority status on the system console. A user change can also occur when a SET IOPRIORITY command is issued specifying this user, or user logs on and has a IOPRIORITY directory statement. This record is generated only if the user who is the target of the command is enabled for scheduler domain (not to be confused with the user that issued the command).
MRSCLIOP Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 36 SCLIOP Start of monitor record 0 0 Character 0 SCLIOP_MRHDR Record header 0 0 Character 20 MRHDR 0 0 Unsigned 2 MRHDRLEN record length in bytes 2 2 Unsigned 2 MRHDRZER field of zeros 4 4 Unsigned 1 MRHDRDM domain identifier 5 5 Unsigned 1 * 6 6 Unsigned 2 MRHDRRC record identifier 8 8 Character 8 MRHDRTOD Time at which this record was built. In time-of-day (TOD) clock format. See IBM System 370 XA Principle of Operation for explanation of format. 16 10 Character 4 * 20 14 Character 0 MRHDR_END End of header 20 14 Character 8 SCLIOP_VMDUSER Userid 28 1C Unsigned 4 SCLIOP_IPQUPR1 HCPIPQUP input R1 28 1C Unsigned 1 SCLIOP_NEWRQLO If not a system change, this is the user's requested LO range value. 29 1D Unsigned 1 SCLIOP_NEWRQHI If not a system change, this is the user's requested HI range value. 30 1E Character 1 * Reserved and available for IBM use 31 1F Bitstring 1 SCLIOP_IPQX0 Type of change flag byte 1... .... SCLIOP_IPQXCP System change. Received real machine check. .1.. .... SCLIOP_IPQXDIS I/O Priority Queuing changed from enabled to disabled state ..1. .... SCLIOP_IPQXENB I/O Priority Queuing changed from disabled to enabled state ...1 .... * .... 1... SCLIOP_IPQXUSER Not a system change. .... .1.. SCLIOP_IPQXREL User wants RELATIVE range. .... ..1. SCLIOP_IPQXABS User wants ABSOLUTE range. .... ...1 * 32 20 Unsigned 4 SCLIOP_SYSIOPQ I/O Priority Queueing Information 32 20 Bitstring 1 SCLIOP_SYSIOPQH I/O Priority Queueing Hardware Flags 1... .... SCLIOP_SYSIOPQA I/O Priority Queueing facility active .1.. .... * ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 33 21 Unsigned 1 SCLIOP_SYSIOPLO I/O Priority system minimum 34 22 Unsigned 1 SCLIOP_SYSIOPHI I/O Priority system maximum 35 23 Character 1 * Reserved for IBM Use 36 24 Character 0 SCLIOP_END
MRSCLIOP Cross Reference
Hex Hex Name Offset Length Value MRHDR 0 20 MRHDR_END 14 0 MRHDRDM 4 1 MRHDRLEN 0 2 MRHDRRC 6 2 MRHDRTOD 8 8 MRHDRZER 2 2 SCLIOP 0 36 SCLIOP_END 24 0 SCLIOP_IPQUPR1 1C 4 SCLIOP_IPQXABS 1F 02 SCLIOP_IPQXCP 1F 80 SCLIOP_IPQXDIS 1F 40 SCLIOP_IPQXENB 1F 20 SCLIOP_IPQXREL 1F 04 SCLIOP_IPQXUSER 1F 08 SCLIOP_IPQX0 1F 1 SCLIOP_MRHDR 0 0 SCLIOP_NEWRQHI 1D 1 SCLIOP_NEWRQLO 1C 1 SCLIOP_SYSIOPHI 22 1 SCLIOP_SYSIOPLO 21 1 SCLIOP_SYSIOPQ 20 4 SCLIOP_SYSIOPQA 20 80 SCLIOP_SYSIOPQH 20 1 SCLIOP_VMDUSER 14 8
This information is based on z/VM V4R4.0.
Last updated on 22 Jul 2003 at 15:04:23.
Copyright IBM Corporation, 1990, 2003