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kamailio/modules/erlang/cnode.h

113 lines
2.9 KiB

/**
* Copyright (C) 2015 Bicom Systems Ltd, (bicomsystems.com)
*
* Author: Seudin Kasumovic (seudin.kasumovic@gmail.com)
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef CNODE_H_
#define CNODE_H_
#include <ei.h>
/**
* Listener for handling requests from connected nodes.
*/
typedef struct cnode_handler_s
{
/* d-linked list */
struct handler_common_s *prev;
struct handler_common_s *next;
/* if need to add new in i/o handler */
struct handler_common_s *new;
/*
* this handler is erlang C node server
* handles requests from remote erlang node
*/
int (*handle_f)(handler_common_t *phandler_t);
int (*wait_tmo_f)(handler_common_t *phandler_t);
int (*destroy_f)(handler_common_t *phandler_t);
int sockfd; /* connection socket to remote erlang node */
ei_cnode ec; /* erlang C node (actually it's kamailio node) */
/*
* connection descriptor
* remote node info
*/
ErlConnect conn;
/* request/response buffers */
ei_x_buff request;
ei_x_buff response;
/*
* ERL_TICK time out
*/
int tick_tmo;
} cnode_handler_t;
/*
* active connection to Erlang node
*/
extern cnode_handler_t *enode;
/* where to reply - reset to NULL after use */
extern erlang_pid *cnode_reply_to_pid;
typedef struct csockfd_handler_s
{
/* d-linked list */
struct handler_common_s *prev;
struct handler_common_s *next;
struct handler_common_s *new;
/* handle receive fd over csockfd */
int (*handle_f)(handler_common_t *phandler_t);
int (*wait_tmo_f)(handler_common_t *phandler_t);
int (*destroy_f)(handler_common_t *phandler_t);
int sockfd; /* its csockfd */
ei_cnode ec; /* erlang C node (actually it's kamailio node) */
} csockfd_handler_t;
extern csockfd_handler_t *csocket_handler;
int init_cnode_sockets(int idx);
void cnode_main_loop(int idx);
int handle_csockfd(handler_common_t *phandler_t);
int csockfd_init(csockfd_handler_t *phandler_t, const ei_cnode *ei);
int handle_cnode(handler_common_t *phandler_t);
int wait_cnode_tmo(handler_common_t *phandler_t);
int destroy_cnode(handler_common_t *phandler_t);
int cnode_connect_to(cnode_handler_t *phandler, ei_cnode *ec, const str *nodename );
int enode_connect();
enum erl_handle_type {
ERL_EPMD_H = 1,
ERL_CNODE_H,
ERL_WORKER_H,
ERL_CSOCKFD_H
};
#endif /* CNODE_H_ */