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kamailio/modules/dmq/peer.c

122 lines
2.8 KiB

/*
* $Id$
*
* dmq module - distributed message queue
*
* Copyright (C) 2011 Bucur Marius - Ovidiu
*
* 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
*
*/
#include "peer.h"
#include "dmq.h"
/**
* @brief init peer list
*/
dmq_peer_list_t* init_peer_list()
{
dmq_peer_list_t* peer_list;
peer_list = shm_malloc(sizeof(dmq_peer_list_t));
if(peer_list==NULL) {
LM_ERR("no more shm\n");
return NULL;
}
memset(peer_list, 0, sizeof(dmq_peer_list_t));
lock_init(&peer_list->lock);
return peer_list;
}
/**
* @brief search peer list
*/
dmq_peer_t* search_peer_list(dmq_peer_list_t* peer_list, dmq_peer_t* peer)
{
dmq_peer_t* crt;
int len;
crt = peer_list->peers;
while(crt) {
/* len - the minimum length of the two strings */
len = (crt->peer_id.len < peer->peer_id.len)
? crt->peer_id.len:peer->peer_id.len;
if(strncasecmp(crt->peer_id.s, peer->peer_id.s, len) == 0) {
return crt;
}
crt = crt->next;
}
return 0;
}
/**
* @brief add peer
*/
dmq_peer_t* add_peer(dmq_peer_list_t* peer_list, dmq_peer_t* peer)
{
dmq_peer_t* new_peer = NULL;
new_peer = shm_malloc(sizeof(dmq_peer_t));
if(new_peer==NULL) {
LM_ERR("no more shm\n");
return NULL;
}
*new_peer = *peer;
/* copy the str's */
new_peer->peer_id.s = shm_malloc(peer->peer_id.len);
if(new_peer->peer_id.s==NULL) {
LM_ERR("no more shm\n");
shm_free(new_peer);
return NULL;
}
memcpy(new_peer->peer_id.s, peer->peer_id.s, peer->peer_id.len);
new_peer->peer_id.len = peer->peer_id.len;
new_peer->description.s = shm_malloc(peer->description.len);
if(new_peer->description.s==NULL) {
LM_ERR("no more shm\n");
shm_free(new_peer->peer_id.s);
shm_free(new_peer);
return NULL;
}
memcpy(new_peer->peer_id.s, peer->peer_id.s, peer->peer_id.len);
new_peer->peer_id.len = peer->peer_id.len;
new_peer->next = peer_list->peers;
peer_list->peers = new_peer;
return new_peer;
}
/**
* @brief find peer by id
*/
dmq_peer_t* find_peer(str peer_id)
{
dmq_peer_t foo_peer;
foo_peer.peer_id = peer_id;
return search_peer_list(peer_list, &foo_peer);
}
/**
* @empty callback
*/
int empty_peer_callback(struct sip_msg* msg, peer_reponse_t* resp)
{
return 0;
}