Advanced Queuing - Oracle

Asynchronous Notifications
/* Message properties: */
OCIAttrGet(desc, OCI_DTYPE_AQNFY_DESCRIPTOR, (dvoid *)&msgprop, &size,
OCI_ATTR_MSG_PROP, errhp);
/* Get priority from message properties: */
checkerr(errhp, OCIAttrGet(msgprop, OCI_DTYPE_AQMSG_PROPERTIES,
(dvoid *)&priority, 0,
OCI_ATTR_PRIORITY, errhp));
switch (priority)
{
case 1: ship_stats->fedex++;
break;
case 2 : ship_stats->air++;
break;
case 3: ship_stats->ground++;
break;
default:
printf(" Error priority %d", priority);
}
}
int main(argc, argv)
int argc;
char *argv[];
{
OCISession *authp = (OCISession *) 0;
OCISubscription *subscrhp[8];
ub4 namespace = OCI_SUBSCR_NAMESPACE_AQ;
ship_data ctx = {0,0,0};
ub4 sleep_time = 0;
printf("Initializing OCI Process\n");
/* Initialize OCI environment with OCI_EVENTS flag set: */
(void) OCIInitialize((ub4) OCI_EVENTS|OCI_OBJECT, (dvoid *)0,
(dvoid * (*)(dvoid *, size_t)) 0,
(dvoid * (*)(dvoid *, dvoid *, size_t))0,
(void (*)(dvoid *, dvoid *)) 0 );
printf("Initialization successful\n");
printf("Initializing OCI Env\n");
(void) OCIEnvInit( (OCIEnv **) &envhp, OCI_DEFAULT, (size_t) 0, (dvoid **) 0
8-100 Oracle9i Application Developer’s Guide - Advanced Queuing