src/modules/nats/nats_mod.h
6078dbf6
 /*
  * NATS module interface
  *
  * Copyright (C) 2021 Voxcom Inc
  *
  * This file is part of Kamailio, a free SIP server.
  *
  * Kamailio is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version
  *
  * Kamailio is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  *
  */
 
 #ifndef __NATS_MOD_H_
 #define __NATS_MOD_H_
 
 #include <stdio.h>
 #include <nats/nats.h>
 #include <nats/adapters/libuv.h>
 #include "../json/api.h"
 #include "../../core/cfg/cfg_struct.h"
 #include "../../core/fmsg.h"
 
 #define NATS_DEFAULT_URL "nats://localhost:4222"
 #define NATS_MAX_SERVERS 10
 #define NATS_URL_MAX_SIZE 256
 
 typedef struct _nats_evroutes
 {
 	int connected;
 	int disconnected;
 } nats_evroutes_t;
 static nats_evroutes_t _nats_rts;
 
 typedef struct _init_nats_sub
 {
 	char *sub;
 	char *queue_group;
 	struct _init_nats_sub *next;
 } init_nats_sub, *init_nats_sub_ptr;
 
 typedef struct _init_nats_server
 {
 	char *url;
 	struct _init_nats_server *next;
 } init_nats_server, *init_nats_server_ptr;
 
 typedef struct _nats_on_message
 {
 	int rt;
 } nats_on_message, *nats_on_message_ptr;
 
 struct nats_consumer_worker
 {
 	char *subject;
 	char *queue_group;
 	int pid;
 	natsConnection *conn;
 	natsOptions *opts;
 	natsSubscription *subscription;
 	uv_loop_t *uvLoop;
 	nats_on_message_ptr on_message;
 	char *init_nats_servers[NATS_MAX_SERVERS];
 };
 typedef struct nats_consumer_worker nats_consumer_worker_t;
 
 static int mod_init(void);
 static int mod_child_init(int);
 static void mod_destroy(void);
 
 int nats_run_cfg_route(int rt);
 void nats_init_environment();
 
 int _init_nats_server_url_add(modparam_t type, void *val);
 init_nats_server_ptr _init_nats_server_list_new(char *url);
 int init_nats_server_url_add(char *url);
 int nats_cleanup_init_servers();
 
 int _init_nats_sub_add(modparam_t type, void *val);
 init_nats_sub_ptr _init_nats_sub_new(char *sub, char *queue_group);
 int init_nats_sub_add(char *sub);
 int nats_cleanup_init_sub();
 
 void nats_consumer_worker_proc(
 		nats_consumer_worker_t *worker, const char *init_nats_servers[]);
 int nats_pv_get_event_payload(struct sip_msg *, pv_param_t *, pv_value_t *);
 
 #endif