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ZCOM C I/F Library Routines

ZEVENT_RCVR (3X)

Chapter 4230

NOTES When an Application program issues a zread call, it can differentiate the

type of information it is receiving by looking at the type of the message.

ZCOM Event messages will return a message type of 5

(ZCOM_MSTYPE_LSEM) for a local system event, and a message type of

13 (ZCOM_MSTYPE_RSEM) for a remote system event. The difference

between local and remote event messages is where the event was

generated. Local event messages were generated locally and remote

event messages were generated at a remote node. The content of the

message will contain additional information about the event.

The ‘C’ structure for a ZCOM Event Message is shown below:

/*--- ZCOM Event Messsage Type ---*/

typedef struct

uint8 setype; /* Event type. */

uint8 seflag; /* Event flags (reserved for now). */

uint16 senode; /* Node where event was generated. */

uint32 setime; /* Event time (Epoc time). */

union

{

struct { /* Node Status change Event data. */

uint16 node_num; /* Node whose state has changed. */

int8 nstat; /* Node state change indicator. */

int8 spare; /* Reserved for future use. */

int8 hstat[ZCOM_NHOST]; /* Link state change indicator */

} node;

struct { /* Dynamic Reconfiguration Event data. */

uint32 cfg_class; /* User supplied config class

/* (1-999 reserved for use by ZCOM) */

uint32 cfg_info1; /* User supplied class specific info. */

} recfg;

} sedata; /* Event class specific data. */

} zevent_type;

For the field setype there are two defined event types:

See the ZCOM Programmer’s Reference Manual for a detailed description

of the fields in this data structure.

ZCOM_SETYPE_NODE - Node Status Change Event.

ZCOM_SETYPE_RECONFIG - Reconfiguration Complete Event.

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