ACC Programmer's Reference Guide

Chapter 3 55
ZCOM Tables and Data Structures
Node Entries Table
FLAGS - Node status and internal flags
This bit-field structure contains bits to mai ntain state and other internal
information about this node. The contents of this field are as follows:
STATS - Statistics for this node
This field is a data structure that contains some statistics on the data
traffic for this node. The layout of t his structure i s shown in Table 3-5.
NDSHZRVRS - Pointer to a list of receivers for node status events.
This field contains a pointer to a linked list of applications to be notified
whenever this node changes state. Whenever this node changes state
from up-to-down or down-to-up, a node status system event message will
be sent to each program in this linked list. That is, those applications
that have issued a zevent_rcvr() call to receive node status events. This
field will be set to zero if there are no applications to be notified.
FLAGS.event - Set to 1 if there is at least one application that wants to be
notified of a status change for the node.
FLAGS.valid - Set to 1 if this node entry in the table is valid; that is,
currently defined and in use.
FLAGS.status - Set to 1 if this node is currently UP. The status bit indicates
whether a remote node is usable. If this bit is not set, the
LDM will reject all requests to that node with a
ZENDOWN(-61)error.Foralocalnode,thestatus bit
indicates that the ZNODE daemon is running properly.
FLAGS.local - Set to 1 if this node entry in the table represents the local
node.
Table 3-5 STATS Data Structure
Field Name Field Description Field Type Size
(Bytes)
icount Number of incoming messages uns.int 4
ibytes Number of incoming bytes uns.int 4
ocount Number of outgoing messages uns.int 4
obytes Number of outgoing bytes uns.int 4