Function init_ip_tree

modules/pike/ip_tree.c:114–147

Builds and Inits a new IP tree */

/* Builds and Inits a new IP tree */
int init_ip_tree(int maximum_hits)
{
	int size;
	int i;

	/* create the root */
	root = (struct ip_tree*)shm_malloc(sizeof(struct ip_tree));
	if (root==0) {
		LM_ERR("shm malloc failed\n");
		goto error;
	}
	memset( root, 0, sizeof(struct ip_tree));

	/* init lock set */
	size = MAX_IP_BRANCHES;
	root->entry_lock_set = init_lock_set( &size );
	if (root->entry_lock_set==0) {
		LM_ERR("failed to create locks\n");
		goto error;
	}
	/* assign to each branch a lock */
	for(i=0;i<MAX_IP_BRANCHES;i++) {
		root->entries[i].node = 0;
		root->entries[i].lock_idx = i % size;
	}

	root->max_hits = maximum_hits;

	return 0;
error:
	if (root)
		shm_free(root);
	return -1;
}