mirror of https://github.com/sipwise/kamailio.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
230 lines
5.6 KiB
230 lines
5.6 KiB
/*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2012 Smile Communications, jason.penton@smilecoms.com
|
|
* Copyright (C) 2012 Smile Communications, richard.good@smilecoms.com
|
|
*
|
|
* The initial version of this code was written by Dragos Vingarzan
|
|
* (dragos(dot)vingarzan(at)fokus(dot)fraunhofer(dot)de and the
|
|
* Fruanhofer Institute. It was and still is maintained in a separate
|
|
* branch of the original SER. We are therefore migrating it to
|
|
* Kamailio/SR and look forward to maintaining it from here on out.
|
|
* 2011/2012 Smile Communications, Pty. Ltd.
|
|
* ported/maintained/improved by
|
|
* Jason Penton (jason(dot)penton(at)smilecoms.com and
|
|
* Richard Good (richard(dot)good(at)smilecoms.com) as part of an
|
|
* effort to add full IMS support to Kamailio/SR using a new and
|
|
* improved architecture
|
|
*
|
|
* NB: Alot of this code was originally part of OpenIMSCore,
|
|
* FhG Fokus.
|
|
* Copyright (C) 2004-2006 FhG Fokus
|
|
* Thanks for great work! This is an effort to
|
|
* break apart the various CSCF functions into logically separate
|
|
* components. We hope this will drive wider use. We also feel
|
|
* that in this way the architecture is more complete and thereby easier
|
|
* to manage in the Kamailio/SR environment
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#include <time.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "utils.h"
|
|
#include "globals.h"
|
|
#include "worker.h"
|
|
|
|
#include "timer.h"
|
|
|
|
#include "../../cfg/cfg_struct.h"
|
|
|
|
|
|
/* defined in ../diameter_peer.c */
|
|
int dp_add_pid(pid_t pid);
|
|
void dp_del_pid(pid_t pid);
|
|
|
|
|
|
timer_cb_list_t *timers=0; /**< list of timers */
|
|
gen_lock_t *timers_lock=0; /**< lock for the list of timers */
|
|
|
|
/** how many seconds to sleep on each timer iteration */
|
|
#define TIMER_RESOLUTION 1
|
|
|
|
/**
|
|
* Loop that checks every #TIMER_RESOLUTION seconds if some timer expired.
|
|
* On expires, the callback is called. The callback should return rapidly
|
|
* in order to avoid blocking the timer process. If the timer is "one_time",
|
|
* then it is removed from the timers list.
|
|
* @returns on shutdown
|
|
*/
|
|
void timer_loop()
|
|
{
|
|
time_t now;
|
|
timer_cb_t *i;
|
|
callback_f cb=0;
|
|
void *ptr=0;
|
|
int interval=0;
|
|
|
|
while(1){
|
|
if (shutdownx && *shutdownx) break;
|
|
now = time(0);
|
|
cfg_update();
|
|
|
|
do {
|
|
cb = 0;
|
|
lock_get(timers_lock);
|
|
i = timers->head;
|
|
while(i && i->expires>now) i = i->next;
|
|
if (i){
|
|
cb = i->cb;
|
|
ptr = *(i->ptr);
|
|
if (i->one_time){
|
|
if (i->prev) i->prev->next = i->next;
|
|
else timers->head = i->next;
|
|
if (i->next) i->next->prev = i->prev;
|
|
else timers->tail = i->next;
|
|
shm_free(i);
|
|
i=0;
|
|
}
|
|
}
|
|
lock_release(timers_lock);
|
|
|
|
if (cb) {
|
|
interval = cb(now,ptr);
|
|
if (i){
|
|
lock_get(timers_lock);
|
|
i->expires = now + interval;
|
|
lock_release(timers_lock);
|
|
}
|
|
}
|
|
|
|
} while(cb);
|
|
|
|
sleep(TIMER_RESOLUTION);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a timer to the timer list.
|
|
* @param expires_in - time until expiration in seconds
|
|
* @param one_time - if after expiration it should be removed or kept in the timers list
|
|
* @param cb - callback function to be called on expiration
|
|
* @param ptr - generic pointer to pass to the callback on expiration
|
|
* @returns 1 on success or 0 on failure
|
|
*/
|
|
int add_timer(int expires_in,int one_time,callback_f cb,void *ptr)
|
|
{
|
|
timer_cb_t *n;
|
|
if (expires_in==0){
|
|
LM_ERR("add_timer(): Minimum expiration time is 1 second!\n");
|
|
return 0;
|
|
}
|
|
n = shm_malloc(sizeof(timer_cb_t));
|
|
if (!n){
|
|
LOG_NO_MEM("shm",sizeof(timer_cb_t));
|
|
return 0;
|
|
}
|
|
n->ptr = shm_malloc(sizeof(void*));
|
|
if (!n){
|
|
LOG_NO_MEM("shm",sizeof(void*));
|
|
shm_free(n);
|
|
return 0;
|
|
}
|
|
n->expires = expires_in + time(0);
|
|
n->one_time = one_time;
|
|
//n->interval = expires_in;
|
|
n->cb = cb;
|
|
*(n->ptr) = ptr;
|
|
|
|
lock_get(timers_lock);
|
|
n->prev = timers->tail;
|
|
n->next = 0;
|
|
if (!timers->head) timers->head = n;
|
|
if (timers->tail) timers->tail->next = n;
|
|
timers->tail = n;
|
|
lock_release(timers_lock);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Init the timer structures
|
|
*/
|
|
void timer_cdp_init()
|
|
{
|
|
timers = shm_malloc(sizeof(timer_cb_list_t));
|
|
timers->head=0;
|
|
timers->tail=0;
|
|
timers_lock = lock_alloc();
|
|
timers_lock = lock_init(timers_lock);
|
|
}
|
|
|
|
/**
|
|
* Destroy the timer structures
|
|
*/
|
|
void timer_cdp_destroy()
|
|
{
|
|
timer_cb_t *n,*i;
|
|
/* lock_get(timers_lock);*/
|
|
i = timers->head;
|
|
while(i){
|
|
n = i->next;
|
|
if (i->ptr) shm_free(i->ptr);
|
|
shm_free(i);
|
|
i = n;
|
|
}
|
|
shm_free(timers);
|
|
lock_destroy(timers_lock);
|
|
lock_dealloc((void*)timers_lock);
|
|
}
|
|
|
|
/**
|
|
* Timer Process function.
|
|
* It calls timer_loop().
|
|
* @param returns - whether on shutdown this function should return or exit
|
|
* @returns if returns is set then on shutdown, else never and on shutdown it exits
|
|
*/
|
|
void timer_process(int returns)
|
|
{
|
|
LM_INFO("Timer process starting up...\n");
|
|
|
|
timer_loop();
|
|
|
|
LM_INFO("... Timer process finished\n");
|
|
if (!returns) {
|
|
#ifdef CDP_FOR_SER
|
|
#else
|
|
#ifdef PKG_MALLOC
|
|
#ifdef PKG_MALLOC
|
|
LM_DBG("Timer Memory status (pkg):\n");
|
|
//pkg_status();
|
|
#ifdef pkg_sums
|
|
pkg_sums();
|
|
#endif
|
|
#endif
|
|
#endif
|
|
dp_del_pid(getpid());
|
|
#endif
|
|
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
|