示例#1
0
文件: dialog.c 项目: tsudot/kamailio
static void mod_destroy(void) {
    destroy_dlg_table();
    destroy_dlg_timer();
    destroy_dlg_callbacks(DLGCB_CREATED | DLGCB_LOADED);
    destroy_dlg_handlers();
    destroy_dlg_profiles();
}
示例#2
0
static void mod_destroy(void) {
	if(dlg_db_mode == DB_MODE_DELAYED || dlg_db_mode == DB_MODE_SHUTDOWN) {
		dialog_update_db(0, 0);
		destroy_dlg_db();
	}

    destroy_dlg_table();
    destroy_dlg_timer();
    destroy_dlg_callbacks(DLGCB_CREATED | DLGCB_LOADED);
    destroy_dlg_handlers();
    destroy_dlg_profiles();
    dialog_ng_stats_destroy();
}
示例#3
0
文件: dialog.c 项目: ryzhov/ATS0
static void mod_destroy(void)
{
	if (dlg_db_mode != DB_MODE_NONE) {
		dialog_update_db(0, 0);
		destroy_dlg_db();
	}
	/* no DB interaction from now on */
	dlg_db_mode = DB_MODE_NONE;
	destroy_dlg_table();
	destroy_dlg_timer();
	destroy_ping_timer();
	destroy_dlg_callbacks( DLGCB_CREATED|DLGCB_LOADED );
	destroy_dlg_handlers();
	destroy_dlg_profiles();
}
示例#4
0
static void mod_destroy(void)
{
	if(dlg_db_mode == DB_MODE_DELAYED || dlg_db_mode == DB_MODE_SHUTDOWN) {
		dialog_update_db(0, 0);
		destroy_dlg_db();
	}
	dlg_bridge_destroy_hdrs();
	/* no DB interaction from now on */
	dlg_db_mode = DB_MODE_NONE;
	destroy_dlg_table();
	destroy_dlg_timer();
	destroy_dlg_callbacks( DLGCB_CREATED|DLGCB_LOADED );
	destroy_dlg_handlers();
	destroy_dlg_profiles();
}
示例#5
0
文件: dialog.c 项目: ihassin/opensips
static void mod_destroy(void)
{
	if (dlg_db_mode != DB_MODE_NONE) {
		dialog_update_db(0, 0);
		destroy_dlg_db();
	}
	/* no DB interaction from now on */
	dlg_db_mode = DB_MODE_NONE;
	destroy_dlg_table();
	destroy_dlg_timer();
	destroy_ping_timer();
	destroy_dlg_callbacks( DLGCB_CREATED|DLGCB_LOADED );
	destroy_dlg_handlers();
	destroy_dlg_profiles();

	destroy_cachedb(1);

	/* free DLG_STATE_CHANGED event */
	state_changed_event_destroy();
}
示例#6
0
static int mod_init(void)
{
	unsigned int n;

	LM_INFO("Dialog module - initializing\n");

	if (timeout_spec.s)
		timeout_spec.len = strlen(timeout_spec.s);

	init_db_url( db_url , 1 /*can be null*/);
	dlg_id_column.len = strlen(dlg_id_column.s);
	call_id_column.len = strlen(call_id_column.s);
	from_uri_column.len = strlen(from_uri_column.s);
	from_tag_column.len = strlen(from_tag_column.s);
	to_uri_column.len = strlen(to_uri_column.s);
	to_tag_column.len = strlen(to_tag_column.s);
	state_column.len = strlen(state_column.s);
	start_time_column.len = strlen(start_time_column.s);
	timeout_column.len = strlen(timeout_column.s);
	to_cseq_column.len = strlen(to_cseq_column.s);
	from_cseq_column.len = strlen(from_cseq_column.s);
	to_route_column.len = strlen(to_route_column.s);
	from_route_column.len = strlen(from_route_column.s);
	to_contact_column.len = strlen(to_contact_column.s);
	from_contact_column.len = strlen(from_contact_column.s);
	to_sock_column.len = strlen(to_sock_column.s);
	from_sock_column.len = strlen(from_sock_column.s);
	profiles_column.len = strlen(profiles_column.s);
	vars_column.len = strlen(vars_column.s);
	sflags_column.len = strlen(sflags_column.s);
	dialog_table_name.len = strlen(dialog_table_name.s);

	/* param checkings */

	if( log_profile_hash_size <= 0)
	{
		LM_ERR("invalid value for log_profile_hash_size:%d!!\n",
			log_profile_hash_size);
		return -1;
	}

	if (rr_param.s==0 || rr_param.s[0]==0) {
		LM_ERR("empty rr_param!!\n");
		return -1;
	}
	rr_param.len = strlen(rr_param.s);
	if (rr_param.len>MAX_DLG_RR_PARAM_NAME) {
		LM_ERR("rr_param too long (max=%d)!!\n", MAX_DLG_RR_PARAM_NAME);
		return -1;
	}

	if (timeout_spec.s) {
		if ( pv_parse_spec(&timeout_spec, &timeout_avp)==0 
				&& (timeout_avp.type!=PVT_AVP)){
			LM_ERR("malformed or non AVP timeout "
				"AVP definition in '%.*s'\n", timeout_spec.len,timeout_spec.s);
			return -1;
		}
	}

	if (default_timeout<=0) {
		LM_ERR("0 default_timeout not accepted!!\n");
		return -1;
	}


	if (ping_interval<=0) {
		LM_ERR("Non-positive ping interval not accepted!!\n");
		return -1;
	}

	/* update the len of the extra headers */
	if (dlg_extra_hdrs.s)
		dlg_extra_hdrs.len = strlen(dlg_extra_hdrs.s);

	if (seq_match_mode!=SEQ_MATCH_NO_ID &&
	seq_match_mode!=SEQ_MATCH_FALLBACK &&
	seq_match_mode!=SEQ_MATCH_STRICT_ID ) {
		LM_ERR("invalid value %d for seq_match_mode param!!\n",seq_match_mode);
		return -1;
	}

	/* if statistics are disabled, prevent their registration to core */
	if (dlg_enable_stats==0)
		exports.stats = 0;

	/* we are only interested in these parameters if the cachedb url was defined */
	if (cdb_url.s) {
		cdb_url.len = strlen(cdb_url.s);
		if (init_cachedb_utils() <0) {
			LM_ERR("cannot init cachedb utils\n");
			return -1;
		}

		cdb_val_prefix.len = strlen(cdb_val_prefix.s);
		cdb_noval_prefix.len = strlen(cdb_noval_prefix.s);
		cdb_size_prefix.len = strlen(cdb_size_prefix.s);
	}

	/* create profile hashes */
	if (add_profile_definitions( profiles_nv_s, 0)!=0 ) {
		LM_ERR("failed to add profiles without value\n");
		return -1;
	}
	if (add_profile_definitions( profiles_wv_s, 1)!=0 ) {
		LM_ERR("failed to add profiles with value\n");
		return -1;
	}


	/* load the TM API */
	if (load_tm_api(&d_tmb)!=0) {
		LM_ERR("can't load TM API\n");
		return -1;
	}

	/* load RR API also */
	if (load_rr_api(&d_rrb)!=0) {
		LM_ERR("can't load RR API\n");
		return -1;
	}

	/* register callbacks*/
	/* listen for all incoming requests  */
	if ( d_tmb.register_tmcb( 0, 0, TMCB_REQUEST_IN, dlg_onreq, 0, 0 ) <=0 ) {
		LM_ERR("cannot register TMCB_REQUEST_IN callback\n");
		return -1;
	}

	/* listen for all routed requests  */
	if ( d_rrb.register_rrcb( dlg_onroute, 0, 1 ) <0 ) {
		LM_ERR("cannot register RR callback\n");
		return -1;
	}

	if (register_script_cb( dialog_cleanup, POST_SCRIPT_CB|REQ_TYPE_CB,0)<0) {
		LM_ERR("cannot regsiter script callback");
		return -1;
	}

	if (accept_replicated_dlg &&
		bin_register_cb("dialog", receive_binary_packet) < 0) {
		LM_ERR("Cannot register binary packet callback!\n");
		return -1;
	}

	if (dlg_have_own_timer_proc) {
		LM_INFO("Running with dedicated dialog timer process\n");
		dlg_own_timer_proc = register_timer_process( "dlg-timer",
			dlg_timer_routine, NULL,1,TIMER_PROC_INIT_FLAG );
		if (dlg_own_timer_proc == NULL) {
			LM_ERR("Failed to init dialog own timer proc\n");
			return -1;
		}
		if (append_timer_to_process("dlg-pinger", dlg_ping_routine, NULL,
							ping_interval,dlg_own_timer_proc) < 0) {
				LM_ERR("Failed to append ping timer \n");
				return -1;
		}
	}
	else {
		if ( register_timer( "dlg-timer", dlg_timer_routine, NULL, 1)<0 ) {
			LM_ERR("failed to register timer \n");
			return -1;
		}

		if ( register_timer( "dlg-pinger", dlg_ping_routine, NULL,
		ping_interval)<0) {
			LM_ERR("failed to register timer 2 \n");
			return -1;
		}
	}

	/* init handlers */
	init_dlg_handlers(timeout_spec.s?&timeout_avp:0, default_timeout);

	/* init timer */
	if (init_dlg_timer(dlg_ontimeout)!=0) {
		LM_ERR("cannot init timer list\n");
		return -1;
	}

	if (init_dlg_ping_timer()!=0) {
		LM_ERR("cannot init ping timer\n");
		return -1;
	}

	/* initialized the hash table */
	for( n=0 ; n<(8*sizeof(n)) ; n++) {
		if (dlg_hash_size==(1<<n))
			break;
		if (dlg_hash_size<(1<<n)) {
			LM_WARN("hash_size is not a power "
				"of 2 as it should be -> rounding from %d to %d\n",
				dlg_hash_size, 1<<(n-1));
			dlg_hash_size = 1<<(n-1);
			break;
		}
	}

	if ( init_dlg_table(dlg_hash_size)<0 ) {
		LM_ERR("failed to create hash table\n");
		return -1;
	}

	/* if a database should be used to store the dialogs' information */
	if (dlg_db_mode==DB_MODE_NONE) {
		db_url.s = 0; db_url.len = 0;
	} else {
		if (dlg_db_mode!=DB_MODE_REALTIME &&
		dlg_db_mode!=DB_MODE_DELAYED && dlg_db_mode!=DB_MODE_SHUTDOWN ) {
			LM_ERR("unsupported db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if ( !db_url.s || db_url.len==0 ) {
			LM_ERR("db_url not configured for db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if (init_dlg_db(&db_url, dlg_hash_size, db_update_period)!=0) {
			LM_ERR("failed to initialize the DB support\n");
			return -1;
		}
		run_load_callbacks();
	}

	/* if profiles should be kept in cachedb's */

	destroy_dlg_callbacks( DLGCB_LOADED );
	destroy_cachedb(0);

	return 0;
}
示例#7
0
static int mod_init(void)
{
	unsigned int n;

	if(dlg_ka_interval!=0 && dlg_ka_interval<30) {
		LM_ERR("ka interval too low (%d), has to be at least 30\n",
				dlg_ka_interval);
		return -1;
	}

	dlg_event_rt[DLG_EVENTRT_START] = route_lookup(&event_rt, "dialog:start");
	dlg_event_rt[DLG_EVENTRT_END] = route_lookup(&event_rt, "dialog:end");
	dlg_event_rt[DLG_EVENTRT_FAILED] = route_lookup(&event_rt, "dialog:failed");

#ifdef STATISTICS
	/* register statistics */
	if (register_module_stats( exports.name, mod_stats)!=0 ) {
		LM_ERR("failed to register %s statistics\n", exports.name);
		return -1;
	}
#endif

	if(register_mi_mod(exports.name, mi_cmds)!=0)
	{
		LM_ERR("failed to register MI commands\n");
		return -1;
	}

	if (rpc_register_array(rpc_methods)!=0) {
		LM_ERR("failed to register RPC commands\n");
		return -1;
	}

	if(faked_msg_init()<0)
		return -1;

	if(dlg_bridge_init_hdrs()<0)
		return -1;

	/* param checkings */
	if (dlg_flag==-1) {
		LM_ERR("no dlg flag set!!\n");
		return -1;
	} else if (dlg_flag>MAX_FLAG) {
		LM_ERR("invalid dlg flag %d!!\n",dlg_flag);
		return -1;
	}

	if (rr_param==0 || rr_param[0]==0) {
		LM_ERR("empty rr_param!!\n");
		return -1;
	} else if (strlen(rr_param)>MAX_DLG_RR_PARAM_NAME) {
		LM_ERR("rr_param too long (max=%d)!!\n", MAX_DLG_RR_PARAM_NAME);
		return -1;
	}

	if (timeout_spec.s) {
		if ( pv_parse_spec(&timeout_spec, &timeout_avp)==0 
				&& (timeout_avp.type!=PVT_AVP)){
			LM_ERR("malformed or non AVP timeout "
				"AVP definition in '%.*s'\n", timeout_spec.len,timeout_spec.s);
			return -1;
		}
	}

	if (default_timeout<=0) {
		LM_ERR("0 default_timeout not accepted!!\n");
		return -1;
	}

	if (ruri_pvar_param.s==NULL || ruri_pvar_param.len<=0) {
		LM_ERR("invalid r-uri PV string\n");
		return -1;
	}

	if(pv_parse_format(&ruri_pvar_param, &ruri_param_model) < 0
				|| ruri_param_model==NULL) {
		LM_ERR("malformed r-uri PV string: %s\n", ruri_pvar_param.s);
		return -1;
	}

	if (initial_cbs_inscript != 0 && initial_cbs_inscript != 1) {
		LM_ERR("invalid parameter for running initial callbacks in-script"
				" (must be either 0 or 1)\n");
		return -1;
	}

	if (seq_match_mode!=SEQ_MATCH_NO_ID &&
	seq_match_mode!=SEQ_MATCH_FALLBACK &&
	seq_match_mode!=SEQ_MATCH_STRICT_ID ) {
		LM_ERR("invalid value %d for seq_match_mode param!!\n",seq_match_mode);
		return -1;
	}

	if (detect_spirals != 0 && detect_spirals != 1) {
		LM_ERR("invalid value %d for detect_spirals param!!\n",detect_spirals);
		return -1;
	}

	if (dlg_timeout_noreset != 0 && dlg_timeout_noreset != 1) {
		LM_ERR("invalid value %d for timeout_noreset param!!\n",
				dlg_timeout_noreset);
		return -1;
	}

	/* if statistics are disabled, prevent their registration to core */
	if (dlg_enable_stats==0)
		exports.stats = 0;

	/* create profile hashes */
	if (add_profile_definitions( profiles_nv_s, 0)!=0 ) {
		LM_ERR("failed to add profiles without value\n");
		return -1;
	}
	if (add_profile_definitions( profiles_wv_s, 1)!=0 ) {
		LM_ERR("failed to add profiles with value\n");
		return -1;
	}

	/* load the TM API */
	if (load_tm_api(&d_tmb)!=0) {
		LM_ERR("can't load TM API\n");
		return -1;
	}

	/* load RR API also */
	if (load_rr_api(&d_rrb)!=0) {
		LM_ERR("can't load RR API\n");
		return -1;
	}

	/* register callbacks*/
	/* listen for all incoming requests  */
	if ( d_tmb.register_tmcb( 0, 0, TMCB_REQUEST_IN, dlg_onreq, 0, 0 ) <=0 ) {
		LM_ERR("cannot register TMCB_REQUEST_IN callback\n");
		return -1;
	}

	/* listen for all routed requests  */
	if ( d_rrb.register_rrcb( dlg_onroute, 0 ) <0 ) {
		LM_ERR("cannot register RR callback\n");
		return -1;
	}

	if (register_script_cb( profile_cleanup, POST_SCRIPT_CB|REQUEST_CB,0)<0) {
		LM_ERR("cannot register script callback");
		return -1;
	}
	if (register_script_cb(dlg_cfg_cb,
				PRE_SCRIPT_CB|REQUEST_CB,0)<0)
	{
		LM_ERR("cannot register pre-script ctx callback\n");
		return -1;
	}
	if (register_script_cb(dlg_cfg_cb,
				POST_SCRIPT_CB|REQUEST_CB,0)<0)
	{
		LM_ERR("cannot register post-script ctx callback\n");
		return -1;
	}

	if (register_script_cb( spiral_detect_reset, POST_SCRIPT_CB|REQUEST_CB,0)<0) {
		LM_ERR("cannot register req pre-script spiral detection reset callback\n");
		return -1;
	}

	if(dlg_timer_procs<=0) {
		if ( register_timer( dlg_timer_routine, 0, 1)<0 ) {
			LM_ERR("failed to register timer \n");
			return -1;
		}
	} else {
		register_sync_timers(1);
	}

	/* init handlers */
	init_dlg_handlers( rr_param, dlg_flag,
		timeout_spec.s?&timeout_avp:0, default_timeout, seq_match_mode);

	/* init timer */
	if (init_dlg_timer(dlg_ontimeout)!=0) {
		LM_ERR("cannot init timer list\n");
		return -1;
	}

	/* sanitize dlg_hash_zie */
	if (dlg_hash_size < 1){
		LM_WARN("hash_size is smaller "
				"then 1  -> rounding from %d to 1\n",
				dlg_hash_size);
		dlg_hash_size = 1;
	}
	/* initialized the hash table */
	for( n=0 ; n<(8*sizeof(n)) ; n++) {
		if (dlg_hash_size==(1<<n))
			break;
		if (n && dlg_hash_size<(1<<n)) {
			LM_WARN("hash_size is not a power "
				"of 2 as it should be -> rounding from %d to %d\n",
				dlg_hash_size, 1<<(n-1));
			dlg_hash_size = 1<<(n-1);
		}
	}

	if ( init_dlg_table(dlg_hash_size)<0 ) {
		LM_ERR("failed to create hash table\n");
		return -1;
	}

	/* if a database should be used to store the dialogs' information */
	dlg_db_mode = dlg_db_mode_param;
	if (dlg_db_mode==DB_MODE_NONE) {
		db_url.s = 0; db_url.len = 0;
	} else {
		if (dlg_db_mode!=DB_MODE_REALTIME &&
		dlg_db_mode!=DB_MODE_DELAYED && dlg_db_mode!=DB_MODE_SHUTDOWN ) {
			LM_ERR("unsupported db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if ( !db_url.s || db_url.len==0 ) {
			LM_ERR("db_url not configured for db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if (init_dlg_db(&db_url, dlg_hash_size, db_update_period,db_fetch_rows)!=0) {
			LM_ERR("failed to initialize the DB support\n");
			return -1;
		}
		run_load_callbacks();
	}

	destroy_dlg_callbacks( DLGCB_LOADED );

	/* timer process to send keep alive requests */
	if(dlg_ka_timer>0 && dlg_ka_interval>0)
		register_sync_timers(1);

	/* timer process to clean old unconfirmed dialogs */
	register_sync_timers(1);

	return 0;
}
示例#8
0
static int mod_init(void) {
    unsigned int n;

    if (register_mi_mod(exports.name, mi_cmds) != 0) {
        LM_ERR("failed to register MI commands\n");
        return -1;
    }

    if (rpc_register_array(rpc_methods) != 0) {
        LM_ERR("failed to register RPC commands\n");
        return -1;
    }
    
    if (dialog_ng_stats_init() != 0) {
	LM_ERR("Failed to register dialog_ng counters\n");
	return -1;
    }

    if (faked_msg_init() < 0)
        return -1;

    if (timeout_spec.s)
        timeout_spec.len = strlen(timeout_spec.s);

    dlg_bridge_controller.len = strlen(dlg_bridge_controller.s);


    /* param checkings */
    if (dlg_flag == -1) {
        LM_ERR("no dlg flag set!!\n");
        return -1;
    } else if (dlg_flag > MAX_FLAG) {
        LM_ERR("invalid dlg flag %d!!\n", dlg_flag);
        return -1;
    }

    if (rr_param == 0 || rr_param[0] == 0) {
        LM_ERR("empty rr_param!!\n");
        return -1;
    } else if (strlen(rr_param) > MAX_DLG_RR_PARAM_NAME) {
        LM_ERR("rr_param too long (max=%d)!!\n", MAX_DLG_RR_PARAM_NAME);
        return -1;
    }

    if (timeout_spec.s) {
        if (pv_parse_spec(&timeout_spec, &timeout_avp) == 0
                && (timeout_avp.type != PVT_AVP)) {
            LM_ERR("malformed or non AVP timeout "
                    "AVP definition in '%.*s'\n", timeout_spec.len, timeout_spec.s);
            return -1;
        }
    }

    if (default_timeout <= 0) {
        LM_ERR("0 default_timeout not accepted!!\n");
        return -1;
    }

    if (ruri_pvar_param.s == NULL || *ruri_pvar_param.s == '\0') {
        LM_ERR("invalid r-uri PV string\n");
        return -1;
    }
    ruri_pvar_param.len = strlen(ruri_pvar_param.s);
    if (pv_parse_format(&ruri_pvar_param, &ruri_param_model) < 0
            || ruri_param_model == NULL) {
        LM_ERR("malformed r-uri PV string: %s\n", ruri_pvar_param.s);
        return -1;
    }

    /* update the len of the extra headers */
    if (dlg_extra_hdrs.s)
        dlg_extra_hdrs.len = strlen(dlg_extra_hdrs.s);

    if (seq_match_mode != SEQ_MATCH_NO_ID &&
            seq_match_mode != SEQ_MATCH_FALLBACK &&
            seq_match_mode != SEQ_MATCH_STRICT_ID) {
        LM_ERR("invalid value %d for seq_match_mode param!!\n", seq_match_mode);
        return -1;
    }

    if (detect_spirals != 0 && detect_spirals != 1) {
        LM_ERR("invalid value %d for detect_spirals param!!\n", detect_spirals);
        return -1;
    }

    /* create profile hashes */
    if (add_profile_definitions(profiles_nv_s, 0) != 0) {
        LM_ERR("failed to add profiles without value\n");
        return -1;
    }
    if (add_profile_definitions(profiles_wv_s, 1) != 0) {
        LM_ERR("failed to add profiles with value\n");
        return -1;
    }

    /* load the TM API */
    if (load_tm_api(&d_tmb) != 0) {
        LM_ERR("can't load TM API\n");
        return -1;
    }

    /* load RR API also */
    if (load_rr_api(&d_rrb) != 0) {
        LM_ERR("can't load RR API\n");
        return -1;
    }

    /* register callbacks*/
    /* listen for all incoming requests  */
    if (d_tmb.register_tmcb(0, 0, TMCB_REQUEST_IN, dlg_onreq, 0, 0) <= 0) {
        LM_ERR("cannot register TMCB_REQUEST_IN callback\n");
        return -1;
    }

    /* listen for all routed requests  */
    if (d_rrb.register_rrcb(dlg_onroute, 0) < 0) {
        LM_ERR("cannot register RR callback\n");
        return -1;
    }

    if (register_script_cb(profile_cleanup, POST_SCRIPT_CB | REQUEST_CB, 0) < 0) {
        LM_ERR("cannot regsiter script callback");
        return -1;
    }
    if (register_script_cb(dlg_cfg_cb,
            PRE_SCRIPT_CB | REQUEST_CB, 0) < 0) {
        LM_ERR("cannot regsiter pre-script ctx callback\n");
        return -1;
    }
    if (register_script_cb(dlg_cfg_cb,
            POST_SCRIPT_CB | REQUEST_CB, 0) < 0) {
        LM_ERR("cannot regsiter post-script ctx callback\n");
        return -1;
    }

    if (register_script_cb(spiral_detect_reset, POST_SCRIPT_CB | REQUEST_CB, 0) < 0) {
        LM_ERR("cannot register req pre-script spiral detection reset callback\n");
        return -1;
    }

    if (register_timer(dlg_timer_routine, 0, 1) < 0) {
        LM_ERR("failed to register timer \n");
        return -1;
    }

    /*for testing only!!!! setup timer to call print all dlg every 10 seconds!*/
    if (register_timer(print_all_dlgs, 0, 10) < 0) {
        LM_ERR("failed to register timer \n");
        return -1;
    }

    /* init handlers */
    init_dlg_handlers(rr_param, dlg_flag,
            timeout_spec.s ? &timeout_avp : 0, default_timeout, seq_match_mode);

    /* init timer */
    if (init_dlg_timer(dlg_ontimeout) != 0) {
        LM_ERR("cannot init timer list\n");
        return -1;
    }

    /* sanitize dlg_hash_zie */
    if (dlg_hash_size < 1) {
        LM_WARN("hash_size is smaller "
                "then 1  -> rounding from %d to 1\n",
                dlg_hash_size);
        dlg_hash_size = 1;
    }

    /* initialized the hash table */
    for (n = 0; n < (8 * sizeof (n)); n++) {
        if (dlg_hash_size == (1 << n))
            break;
        if (n && dlg_hash_size < (1 << n)) {
            LM_WARN("hash_size is not a power "
                    "of 2 as it should be -> rounding from %d to %d\n",
                    dlg_hash_size, 1 << (n - 1));
            dlg_hash_size = 1 << (n - 1);
        }
    }

    if (init_dlg_table(dlg_hash_size) < 0) {
        LM_ERR("failed to create hash table\n");
        return -1;
    }

    /* if a database should be used to store the dialogs' information */
	dlg_db_mode = dlg_db_mode_param;
	if (dlg_db_mode==DB_MODE_NONE) {
		db_url.s = 0; db_url.len = 0;
	} else {
		if (dlg_db_mode!=DB_MODE_REALTIME &&
		dlg_db_mode!=DB_MODE_DELAYED && dlg_db_mode!=DB_MODE_SHUTDOWN ) {
			LM_ERR("unsupported db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if ( !db_url.s || db_url.len==0 ) {
			LM_ERR("db_url not configured for db_mode %d\n", dlg_db_mode);
			return -1;
		}
		if (init_dlg_db(&db_url, dlg_hash_size, db_update_period, db_fetch_rows)!=0) {
			LM_ERR("failed to initialize the DB support\n");
			return -1;
		}
		run_load_callbacks();
	}

    destroy_dlg_callbacks(DLGCB_LOADED);

    return 0;
}