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/*
* $Id: pike.c,v 1.3 2006/01/24 20:56:27 bogdan_iancu Exp $
*
* PIKE module
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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
*
* History:
* --------
* 2003-03-11 updated to the new module exports interface (andrei)
* 2003-03-11 converted to the new locking interface: locking.h --
* major changes (andrei)
* 2003-03-16 flags export parameter added (janakj)
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "../../sr_module.h"
#include "../../error.h"
#include "../../dprint.h"
#include "../../ut.h"
#include "../../mem/shm_mem.h"
#include "../../timer.h"
#include "../../locking.h"
#include "../../fifo_server.h"
#include "ip_tree.h"
#include "timer.h"
#include "pike_funcs.h"
#include "pike_fifo.h"
MODULE_VERSION
static int pike_init(void);
static int pike_exit(void);
/* parameters */
static int time_unit = 2;
static int max_reqs = 30;
int timeout = 120;
/* global variables */
gen_lock_t* timer_lock=0;
struct list_link* timer = 0;
static cmd_export_t cmds[]={
{"pike_check_req", pike_check_req, 0, 0, REQUEST_ROUTE},
{0,0,0,0,0}
};
static param_export_t params[]={
{"sampling_time_unit", INT_PARAM, &time_unit},
{"reqs_density_per_unit", INT_PARAM, &max_reqs},
{"remove_latency", INT_PARAM, &timeout},
{0,0,0}
};
struct module_exports exports= {
"pike",
cmds,
params,
0, /* exported statistics */
pike_init, /* module initialization function */
(response_function) 0,
(destroy_function) pike_exit, /* module exit function */
0 /* per-child init function */
};
static int pike_init(void)
{
LOG(L_INFO,"PIKE - initializing\n");
/* alloc the timer lock */
timer_lock=lock_alloc();
if (timer_lock==0) {
LOG(L_ERR,"ERROR:pike_init: alloc locks failed!\n");
goto error1;
}
/* init the lock */
if (lock_init(timer_lock)==0){
LOG(L_ERR, "ERROR:pike_init: init lock failed\n");
goto error1;
}
/* init the IP tree */
if ( init_ip_tree(max_reqs)!=0 ) {
LOG(L_ERR,"ERROR:pike_init: ip_tree creation failed!\n");
goto error2;
}
/* init timer list */
timer = (struct list_link*)shm_malloc(sizeof(struct list_link));
if (timer==0) {
LOG(L_ERR,"ERROR:pike_init: cannot alloc shm mem for timer!\n");
goto error3;
}
timer->next = timer->prev = timer;
/* registering timing functions */
register_timer( clean_routine , 0, 1 );
register_timer( swap_routine , 0, time_unit );
/* register fifo commands */
if (register_fifo_cmd( fifo_print_ip_tree, PIKE_PRINT_IP_TREE, 0)!=1) {
LOG(L_ERR,"ERROR:pike_init: cannot register fifo cmd %s\n",
PIKE_PRINT_IP_TREE);
goto error4;
}
/* register fifo commands */
if (register_fifo_cmd( fifo_print_timer_list, PIKE_PRINT_TIMER, 0)!=1) {
LOG(L_ERR,"ERROR:pike_init: cannot register fifo cmd %s\n",
PIKE_PRINT_IP_TREE);
goto error4;
}
return 0;
error4:
shm_free( timer );
error3:
destroy_ip_tree();
error2:
lock_destroy(timer_lock);
error1:
if (timer_lock) lock_dealloc(timer_lock);
timer_lock = 0;
return -1;
}
static int pike_exit(void)
{
LOG(L_INFO,"PIKE - destroying module\n");
/* destroy semaphore */
if (timer_lock) {
lock_destroy(timer_lock);
lock_dealloc(timer_lock);
}
/* empty the timer list head */
if (timer) {
shm_free(timer);
timer = 0;
}
/* destroy the IP tree */
destroy_ip_tree();
return 0;
}
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