HP UX 11i v1 I/O Cards manual Node Entries Table

ZCOM Tables and Data Structures

Node Entries Table

Node Entries Table

The Node Entries table contains information about the remote ZCOM systems that communicate with the local ZCOM subsystem. Each Local-Nodeand Remote-Nodedefinition in the TTGEN configuration file occupy one entry in the table. Each entry structure is 392 bytes long and has the format shown in Table 3-4.

Table 3-4	Node Entries Table
Field Name	Field Description	Field Type	Size
			(Bytes)
node_num	ZCOM system node number	uns.short	2
timeout	Default timeout value for this node	uns.short	2
flags	Node status and internal flags	uns.int	4
stats	Statistics for this node	struct	16
ndshzrvrs	List of node status event receivers	pointer	8
nhost	Number of hosts in the host array	uns.short	2
spare1	Reserved, not used	uns.short	2
spare2	Reserved, not used	int	4
host	Host link information	struct [4]	4*88

NODE_NUM - Node number

This field contains a unique node number that identifies the entry.

TIMEOUT - Default timeout value for this node

This field contains timeout in seconds for requests sent to this remote node. Most remote ZCOM requests (e.g. ZOPEN, ZTIMR, etc) require a definite response from the remote ZCOM subsystem. If the response is not received within the timeout period specified by this field, error ZENTOUT (-23) is returned to the application program. This field is initialized by TTGEN with the timeout value specified in a Remote-Nodedefinition. This field is zero for a local node entry.

54 Chapter 3