Function stats_mem_populate

dpdk/lib/graph/graph_stats.c:197–253

}

static int
stats_mem_populate(struct rte_graph_cluster_stats **stats_in,
		   struct rte_graph *graph, struct graph_node *graph_node)
{
	struct rte_graph_cluster_stats *stats = *stats_in;
	rte_node_t id = graph_node->node->id;
	struct cluster_node *cluster;
	struct rte_node *node;
	rte_node_t count;

	cluster = stats->clusters;

	/* Iterate over cluster node array to find node ID match */
	for (count = 0; count < stats->max_nodes; count++) {
		/* Found an existing node in the reel */
		if (cluster->stat.id == id) {
			node = graph_node_id_to_ptr(graph, id);
			if (node == NULL)
				SET_ERR_JMP(
					ENOENT, err,
					"Failed to find node %s in graph %s",
					graph_node->node->name, graph->name);

			cluster->nodes[cluster->nb_nodes++] = node;
			return 0;
		}
		cluster = RTE_PTR_ADD(cluster, stats->cluster_node_size);
	}

	/* Hey, it is a new node, allocate space for it in the reel */
	stats = realloc(stats, stats->sz + stats->cluster_node_size);
	if (stats == NULL)
		SET_ERR_JMP(ENOMEM, err, "Realloc failed");
	*stats_in = NULL;

	/* Clear the new struct cluster_node area */
	cluster = RTE_PTR_ADD(stats, stats->sz),
	memset(cluster, 0, stats->cluster_node_size);
	memcpy(cluster->stat.name, graph_node->node->name, RTE_NODE_NAMESIZE);
	cluster->stat.id = graph_node->node->id;
	cluster->stat.hz = rte_get_timer_hz();
	node = graph_node_id_to_ptr(graph, id);
	if (node == NULL)
		SET_ERR_JMP(ENOENT, free, "Failed to find node %s in graph %s",
			    graph_node->node->name, graph->name);
	cluster->nodes[cluster->nb_nodes++] = node;

	stats->sz += stats->cluster_node_size;
	stats->max_nodes++;
	*stats_in = stats;

	return 0;
free:
	free(stats);
err:
	return -rte_errno;
}