Reference Guide

ZCOM Tables and Data Structures
ZCOM Kernel Data
Chapter 3128
SYS
The SYS structure (ZCOM system global information, zsys_type)
contains software status information about the ZCOM subsystem. For
example, it indicates whether ZCOM is running and when it was last
started up. It is updated by the LDM based on requests from ZMON.
STIME - Time when status last changed
This field contains the time (in Epoch format) when the ZCOM
subsystem changed to the current state. For example, in a running
ZCOM subsystem, this field contains the time when the ZCOM
subsystem became operative.
In addition to providing time information, this field is also used in the
LDM sleeping mechanism. When a ZCOM application is awoken after
waiting in the sleep state, it checks this field to determine whether the
ZCOM subsystem has changed state (for example, from READY to
Table 3-46 SYS structure (ZCOM system global information,
zsys_type)
Field Name Field Description Field Type
Size
(Bytes)
STIME Time when status last changed uns.int 4
STATUS Current system status uns.int 4
DEBUG Debug level, 0 = no debug uns.int 4
MEMSIZE Size of system memory uns.int 4
MEMPTR Pointer to system memory pointer 8
SYSPTR Pointer to ZCOM memory (aligned) pointer 8
SYSSIZE ZCOM system size (adjusted) uns.int 4
NREQUEST Number of active requests uns.int 4
RTIMER Reset request timer uns.int 4
NSLOW Number of slowdown processes uns.int 4
ZSINFO ZCOM system information buffer struct 24