Function mod_init

modules/prometheus/prometheus.c:154–207

};

static int mod_init(void)
{
	struct list_head *it;
	struct prom_stat *s;

	prom_http_root.len = strlen(prom_http_root.s);
	prom_prefix.len = strlen(prom_prefix.s);
	prom_delimiter.len = strlen(prom_delimiter.s);
	prom_grp_prefix.len = strlen(prom_grp_prefix.s);
	prom_grp_label.len = strlen(prom_grp_label.s);

	if (prometheus_script_route.s) {
		prometheus_script_route.len = strlen(prometheus_script_route.s);

		prometheus_route_ref = ref_script_route_by_name(prometheus_script_route.s,
					sroutes->request, RT_NO , REQUEST_ROUTE, 0);
		if ( !ref_script_route_is_valid(prometheus_route_ref) ) {
			LM_ERR("Prometheus route <%s> not defined!\n", prometheus_script_route.s);
			return -1;
		}
	}

	if (prom_grp_mode < PROM_GROUP_MODE_NONE || prom_grp_mode >= PROM_GROUP_MODE_INVALID) {
		LM_ERR("invalid group mode %d\n", prom_grp_mode);
		return -1;
	}

	/* Load httpd api */
	if(load_httpd_api(&prom_httpd_api)<0) {
		LM_ERR("Failed to load httpd api\n");
		return -1;
	}

	/* try to resolve as many stats as possible now */
	list_for_each(it, &prom_stats) {
		s = list_entry(it, struct prom_stat, list);
		s->stat = shm_malloc(sizeof *s->stat);
		if (!s->stat) {
			LM_ERR("oom for stat!\n");
			return -1;
		}
		*s->stat = get_stat(&s->name);
		/* if we don't find it now, don't panic, we might find it later */
	}

	/* Load httpd hooks */
	prom_httpd_api.register_httpdcb(exports.name, &prom_http_root,
				&prom_answer_to_connection,
				&prom_flush_data,
				HTTPD_TEXT_PLAIN_PROMETHEUS_TYPE,
				NULL);

	return 0;
}


static ssize_t prom_flush_data(void *cls, uint64_t pos, char *buf,