/**
* \brief This function do recursive setting new node priority
*/
static int vs_node_prio(struct VSession *vsession,
struct VSNode *node,
uint8 prio)
{
struct VSNodeSubscriber *node_subscriber;
struct VSNode *child_node;
struct VSLink *link;
/* Is client subscribed to this node? */
node_subscriber = node->node_subs.first;
while(node_subscriber != NULL) {
if(node_subscriber->session->session_id == vsession->session_id) {
break;
}
node_subscriber = node_subscriber->next;
}
/* If client is subscribed, then set up new priority */
if(node_subscriber != NULL) {
node_subscriber->prio = prio;
/* Do recursive subscribing to child nodes */
link = node->children_links.first;
while(link != NULL) {
child_node = link->child;
vs_node_prio(vsession, child_node, prio);
link = link->next;
}
} else {
return 0;
}
return 1;
}
/**
* \brief This function handle Node_Priority command
*/
int vs_handle_node_prio(struct VS_CTX *vs_ctx,
struct VSession *vsession,
struct Generic_Cmd *node_prio)
{
struct VSNode *node;
struct VSNodeSubscriber *node_subscriber;
uint8 prio = UINT8(node_prio->data[0]);
uint32 node_id = UINT32(node_prio->data[UINT8_SIZE]);
/* Try to find node */
if((node = vs_node_find(vs_ctx, node_id)) == NULL) {
v_print_log(VRS_PRINT_DEBUG_MSG, "%s() node (id: %d) not found\n",
__FUNCTION__, node_id);
return 0;
}
/* Node has to be created */
if(! (node->state == ENTITY_CREATED || node->state == ENTITY_CREATING)) {
v_print_log(VRS_PRINT_DEBUG_MSG,
"%s() node (id: %d) is not in NODE_CREATED state: %d\n",
__FUNCTION__, node->id, node->state);
return 0;
}
/* Is client subscribed to this node? */
node_subscriber = node->node_subs.first;
while(node_subscriber != NULL) {
if(node_subscriber->session->session_id == vsession->session_id) {
break;
}
node_subscriber = node_subscriber->next;
}
/* When client is subscribed to this node, then change node priority */
if(node_subscriber != NULL) {
node_subscriber->prio = prio;
/* Change priority for this node and all child nodes */
vs_node_prio(vsession, node, prio);
} else {
v_print_log(VRS_PRINT_DEBUG_MSG,
"%s() client not subscribed to this node (id: %d)\n",
__FUNCTION__, node_id);
return 0;
}
return 0;
}
