int32_t vrs_send_taggroup_create(const uint8_t session_id,
const uint8_t prio,
const uint32_t node_id,
const uint16_t type)
{
struct Generic_Cmd *taggroup_create_cmd = v_taggroup_create_create(node_id, -1, type);
return vc_send_command(session_id, prio, taggroup_create_cmd);
}
/**
* \brief This function sends TagGroupCreate command to the client
*
* \param[in] *node_subscriber
* \param[in] *node
* \param[in] *tg
*
* \return This function return 1, when command was successfully created and
* pushed to outgoing queue. When some error occur (already subscribed to
* tag group, out of memory, etc.) then 0 is returned. When outgoing queue is
* empty, then -1 is returned.
*/
int vs_taggroup_send_create(struct VSNodeSubscriber *node_subscriber,
struct VSNode *node,
struct VSTagGroup *tg)
{
struct VSession *vsession = node_subscriber->session;
struct Generic_Cmd *taggroup_create_cmd;
struct VSEntityFollower *taggroup_follower;
/* Check if this tag group is in created/creating state */
if(!(tg->state == ENTITY_CREATING || tg->state == ENTITY_CREATED)) {
v_print_log(VRS_PRINT_DEBUG_MSG,
"This tag group: %d in node: %d is in %d state\n",
tg->id, node->id, tg->state);
return 0;
}
/* Check if this command, has not been already sent */
taggroup_follower = tg->tg_folls.first;
while(taggroup_follower != NULL) {
if(taggroup_follower->node_sub->session->session_id == vsession->session_id ) {
v_print_log(VRS_PRINT_DEBUG_MSG,
"Client already knows about this TagGroup: %d\n",
tg->id);
return 0;
}
taggroup_follower = taggroup_follower->next;
}
/* Create TagGroup create command */
taggroup_create_cmd = v_taggroup_create_create(node->id, tg->id, tg->custom_type);
/* Put this command to the outgoing queue */
if(taggroup_create_cmd == NULL) {
return 0;
}
if(v_out_queue_push_tail(vsession->out_queue,
0,
node_subscriber->prio,
taggroup_create_cmd) == 0)
{
return -1;
} else {
/* Add this session to the list of session, that knows about this
* taggroup. Server could send them taggroup_destroy in the future. */
taggroup_follower = (struct VSEntityFollower*)calloc(1, sizeof(struct VSEntityFollower));
taggroup_follower->node_sub = node_subscriber;
taggroup_follower->state = ENTITY_CREATING;
v_list_add_tail(&tg->tg_folls, taggroup_follower);
return 1;
}
return 0;
}
