static void signal_handler(int signum) {
/* On some implementations (i.e. linuxthreads), signals are delivered
* to all threads. We only want to handle each signal once for the
* entire box, and we let the gwthread wrapper take care of choosing
* one.
*/
if (!gwthread_shouldhandlesignal(signum))
return;
switch (signum) {
case SIGINT:
if (sqlbox_status == SQL_RUNNING) {
error(0, "SIGINT received, aborting program...");
sqlbox_status = SQL_SHUTDOWN;
}
break;
case SIGHUP:
warning(0, "SIGHUP received, catching and re-opening logs");
log_reopen();
alog_reopen();
break;
/*
* It would be more proper to use SIGUSR1 for this, but on some
* platforms that's reserved by the pthread support.
*/
case SIGQUIT:
warning(0, "SIGQUIT received, reporting memory usage.");
gw_check_leaks();
break;
}
}
static void signal_handler(int signum)
{
/*
* On some implementations (i.e. linuxthreads), signals are delivered
* to all threads. We only want to handle each signal once for the
* entire box, and we let the gwthread wrapper take care of choosing
* one. */
if (!gwthread_shouldhandlesignal(signum))
return;
switch (signum) {
case SIGINT:
case SIGTERM:
if (program_status != shutting_down) {
error(0, "SIGINT or SIGTERM received, let's die.");
program_status = shutting_down;
break;
}
break;
case SIGHUP:
warning(0, "SIGHUP received, catching and re-opening logs");
config_reload(1);
log_reopen();
alog_reopen();
break;
/*
* It would be more proper to use SIGUSR1 for this, but on some
* platforms that's reserved by the pthread support.
*/
case SIGQUIT:
warning(0, "SIGQUIT received, reporting memory usage.");
gw_check_leaks();
break;
}
}
int main(int argc, char **argv)
{
int cf_index;
Cfg *cfg;
bb_status = BB_RUNNING;
gwlib_init();
start_time = time(NULL);
suspended = gwlist_create();
isolated = gwlist_create();
gwlist_add_producer(suspended);
gwlist_add_producer(isolated);
cf_index = get_and_set_debugs(argc, argv, check_args);
if (argv[cf_index] == NULL)
cfg_filename = octstr_create("kannel.conf");
else
cfg_filename = octstr_create(argv[cf_index]);
cfg = cfg_create(cfg_filename);
if (cfg_read(cfg) == -1)
panic(0, "Couldn't read configuration from `%s'.", octstr_get_cstr(cfg_filename));
dlr_init(cfg);
report_versions("bearerbox");
flow_threads = gwlist_create();
if (init_bearerbox(cfg) == NULL)
panic(0, "Initialization failed.");
info(0, "----------------------------------------");
info(0, GW_NAME " bearerbox II version %s starting", GW_VERSION);
gwthread_sleep(5.0); /* give time to threads to register themselves */
if (store_load(dispatch_into_queue) == -1)
panic(0, "Cannot start with store-file failing");
info(0, "MAIN: Start-up done, entering mainloop");
if (bb_status == BB_SUSPENDED) {
info(0, "Gateway is now SUSPENDED by startup arguments");
} else if (bb_status == BB_ISOLATED) {
info(0, "Gateway is now ISOLATED by startup arguments");
gwlist_remove_producer(suspended);
} else {
smsc2_resume(1);
gwlist_remove_producer(suspended);
gwlist_remove_producer(isolated);
}
while (bb_status != BB_SHUTDOWN && bb_status != BB_DEAD &&
gwlist_producer_count(flow_threads) > 0) {
/* debug("bb", 0, "Main Thread: going to sleep."); */
/*
* Not infinite sleep here, because we should notice
* when all "flow threads" are dead and shutting bearerbox
* down.
* XXX if all "flow threads" call gwthread_wakeup(MAIN_THREAD_ID),
* we can enter infinite sleep then.
*/
gwthread_sleep(10.0);
/* debug("bb", 0, "Main Thread: woken up."); */
if (bb_todo == 0) {
continue;
}
if (bb_todo & BB_LOGREOPEN) {
warning(0, "SIGHUP received, catching and re-opening logs");
log_reopen();
alog_reopen();
bb_todo = bb_todo & ~BB_LOGREOPEN;
}
if (bb_todo & BB_CHECKLEAKS) {
warning(0, "SIGQUIT received, reporting memory usage.");
gw_check_leaks();
bb_todo = bb_todo & ~BB_CHECKLEAKS;
}
}
if (bb_status == BB_SHUTDOWN || bb_status == BB_DEAD)
warning(0, "Killing signal or HTTP admin command received, shutting down...");
/* call shutdown */
bb_shutdown();
/* wait until flow threads exit */
while (gwlist_consume(flow_threads) != NULL)
;
info(0, "All flow threads have died, killing core");
bb_status = BB_DEAD;
httpadmin_stop();
boxc_cleanup();
smsc2_cleanup();
store_shutdown();
empty_msg_lists();
gwlist_destroy(flow_threads, NULL);
gwlist_destroy(suspended, NULL);
gwlist_destroy(isolated, NULL);
mutex_destroy(status_mutex);
alog_close(); /* if we have any */
bb_alog_shutdown();
cfg_destroy(cfg);
octstr_destroy(cfg_filename);
dlr_shutdown();
/* now really restart */
if (restart)
restart_box(argv);
gwlib_shutdown();
return 0;
}