/**
* This is the main worker process.
* Takes tasks from the queue in a loop and processes them by calling the registered callbacks.
* @param id - id of the worker
* @returns never, exits on shutdown.
*/
void worker_process(int id) {
task_t t;
cdp_cb_t *cb;
int r;
LM_INFO("[%d] Worker process started...\n", id);
/* init the application level for this child */
while (1) {
if (shutdownx && (*shutdownx)) break;
cfg_update();
t = take_task();
if (!t.msg) {
if (shutdownx && (*shutdownx)) break;
LM_INFO("[%d] got empty task Q(%d/%d)\n", id, tasks->start, tasks->end);
continue;
}
LM_DBG("worker_process(): [%d] got task Q(%d/%d)\n", id, tasks->start, tasks->end);
r = is_req(t.msg);
for (cb = callbacks->head; cb; cb = cb->next)
(*(cb->cb))(t.p, t.msg, *(cb->ptr));
if (r) {
AAAFreeMessage(&(t.msg));
} else {
/* will be freed by the user in upper api */
/*AAAFreeMessage(&(t.msg));*/
}
}
worker_poison_queue();
LM_INFO("[%d]... Worker process finished\n", id);
#ifdef CDP_FOR_SER
#else
#ifdef PKG_MALLOC
LM_DBG("Worker[%d] Memory status (pkg):\n", id);
//pkg_status();
#ifdef pkg_sums
pkg_sums();
#endif
#endif
dp_del_pid(getpid());
#endif
exit(0);
}
/**
* Shutdown the CDiameterPeer nicely.
* It stops the workers, disconnects peers, drops timers and wait for all processes to exit.
*/
void diameter_peer_destroy()
{
int pid,status;
handler *h;
lock_get(shutdownx_lock);
if (*shutdownx) {
/* already other process is cleaning stuff */
lock_release(shutdownx_lock);
return;
}else {
/* indicating that we are shuting down */
*shutdownx = 1;
lock_release(shutdownx_lock);
}
worker_poison_queue();
/* wait for all childs to clean up nicely (acceptor, receiver, timer, workers) */
LOG(L_INFO,"INFO:destroy_diameter_peer(): Terminating all childs...\n");
while(pid_list->tail){
pid = dp_last_pid();
if (pid<=0||pid==getpid()){
dp_del_pid(pid);
continue;
}
LOG(L_INFO,"INFO:destroy_diameter_peer(): Waiting for child [%d] to terminate...\n",pid);
if (waitpid(pid,&status,0)<0){
dp_del_pid(pid);
continue;
}
if (!WIFEXITED(status) /*|| WIFSIGNALED(status)*/){
worker_poison_queue();
sleep(1);
} else {
dp_del_pid(pid);
}
}
LOG(L_INFO,"INFO:destroy_diameter_peer(): All processes terminated. Cleaning up.\n");
/* clean upt the timer */
timer_cdp_destroy();
/* cleaning up workers */
worker_destroy();
/* cleaning peer_manager */
peer_manager_destroy();
/* cleaning up sessions */
session_destroy();
/* cleaning up global vars */
/* lock_get(pid_list_lock);*/
shm_free(dp_first_pid);
shm_free(pid_list);
lock_destroy(pid_list_lock);
lock_dealloc((void*)pid_list_lock);
shm_free(shutdownx);
lock_destroy(shutdownx_lock);
lock_dealloc((void*)shutdownx_lock);
lock_get(handlers_lock);
while(handlers->head){
h = handlers->head->next;
shm_free(handlers->head);
handlers->head = h;
}
lock_destroy(handlers_lock);
lock_dealloc((void*)handlers_lock);
shm_free(handlers);
free_dp_config(config);
LOG(L_CRIT,"INFO:destroy_diameter_peer(): Bye Bye from C Diameter Peer test\n");
#ifndef CDP_FOR_SER
#ifdef PKG_MALLOC
LOG(memlog, "Memory status (pkg):\n");
//pkg_status();
#ifdef pkg_sums
pkg_sums();
#endif
#endif
#ifdef SHM_MEM
LOG(memlog, "Memory status (shm):\n");
//shm_status();
#ifdef shm_sums
shm_sums();
#endif
/* zero all shmem alloc vars that we still use */
shm_mem_destroy();
#endif
#endif
}
