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kamailio/modules/p_usrloc/dlist.c

176 lines
4.4 KiB

/*
* Copyright (C) 2001-2003 FhG Fokus
*
* 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
*
*/
/*! \file
* \brief USRLOC - List of registered domains
* \ingroup usrloc
*
* - Module: \ref usrloc
*/
#include "dlist.h"
#include <stdlib.h> /* abort */
#include <string.h> /* strlen, memcmp */
#include <stdio.h> /* printf */
#include "../../ut.h"
#include "../../lib/srdb1/db.h"
#include "../../mem/shm_mem.h"
#include "../../dprint.h"
#include "../../ip_addr.h"
#include "../../socket_info.h"
#include "udomain.h" /* new_udomain, free_udomain */
#include "utime.h"
#include "p_usrloc_mod.h"
#include "ul_db_layer.h"
static struct domain_list_item *domain_list;
static inline struct domain_list_item * find_dlist (str *name) {
struct domain_list_item *item;
for (item = domain_list; item != NULL; item = item->next) {
if (item->name.len == name->len
&& memcmp (item->name.s, name->s, name->len) == 0) {
return item;
}
}
return NULL;
}
static inline struct domain_list_item * add_to_dlist (str *name, int type) {
struct domain_list_item *item;
int i;
item = (struct domain_list_item *)
pkg_malloc (sizeof (struct domain_list_item));
if (item == NULL) {
LM_ERR("Out of pkg memory.\n");
return NULL;
}
item->name.s = (char *) pkg_malloc (name->len + 1);
if (item->name.s == NULL) {
LM_ERR("Out of pkg memory (1).\n");
pkg_free(item);
return NULL;
}
memcpy (item->name.s, name->s, name->len);
item->name.s[name->len] = '\0';
item->name.len = name->len;
memset (&item->domain, 0, sizeof (struct udomain));
item->domain.name = &item->name;
item->domain.dbt = type;
item->domain.table = (hslot_t*)pkg_malloc(sizeof(hslot_t) * ul_hash_size);
if (!item->domain.table) {
LM_ERR("Out of pkg memory (2)\n");
pkg_free(item->name.s);
pkg_free(item);
return NULL;
}
for(i = 0; i < ul_hash_size; i++) {
init_slot(&item->domain, &(item->domain.table[i]), i);
}
item->domain.size = ul_hash_size;
/* Everything else is not useful for now. */
item->next = domain_list;
domain_list = item;
return item;
}
/*!
* \brief Registers a new domain with usrloc
*
* Registers a new domain with usrloc. If the domain exists,
* a pointer to existing structure will be returned, otherwise
* a new domain will be created
* \param _n domain name
* \param _d new created domain
* \return 0 on success, -1 on failure
*/
int register_udomain(const char *name, udomain_t **domain) {
struct domain_list_item *item;
str name_str;
ul_domain_db_t * d;
name_str.s = (char *) name;
name_str.len = strlen (name);
item = find_dlist (&name_str);
if (item == NULL) {
if((d = ul_find_domain(name)) == NULL){
LM_ERR("domain %s not found.\n", name);
return -1;
}
item = add_to_dlist (&name_str, d->dbt);
}
if (item == NULL) {
return -1;
}
*domain = &item->domain;
LM_DBG("found domain %.*s, type: %s\n", (*domain)->name->len, (*domain)->name->s, (((*domain)->dbt) == DB_TYPE_CLUSTER ? "cluster" : "single"));
return 0;
}
/*!
* \brief Loops through all domains summing up the number of users
* \return the number of users, could be zero
*/
unsigned long get_number_of_users(void)
{
int numberOfUsers = 0;
LM_INFO("not available with partitioned interface");
return numberOfUsers;
}
int get_all_ucontacts(void *buf, int len, unsigned int flags,
unsigned int part_idx, unsigned int part_max, int options)
{
LM_INFO("not available with partitioned interface");
return -1;
}
/*!
* \brief Run timer handler of all domains
* \return 0 if all timer return 0, != 0 otherwise
*/
int synchronize_all_udomains(void)
{
int res = 0;
LM_INFO("not available with partitioned interface");
return res;
}