/**
* Main loop, forks the children, bind to addresses,
* handle signals.
* \return don't return on sucess, -1 on error
*/
static int main_loop(void)
{
static int chd_rank;
int* startup_done = NULL;
chd_rank=0;
if (init_debug() != 0) {
LM_ERR("failed to init logging levels\n");
goto error;
}
if (dont_fork) {
if (create_status_pipe() < 0) {
LM_ERR("failed to create status pipe\n");
goto error;
}
if (udp_init_nofork() < 0) {
LM_ERR("failed to init UDP for no fork mode\n");
goto error;
}
/* try to drop privileges */
if (do_suid(uid, gid)==-1)
goto error;
if (start_module_procs()!=0) {
LM_ERR("failed to fork module processes\n");
goto error;
}
/* we need another process to act as the timer*/
if (start_timer_processes()!=0) {
LM_CRIT("cannot start timer process(es)\n");
goto error;
}
is_main=1;
udp_start_nofork();
/* udp_start_nofork() returns only if error */
/* in case of failed startup, behave as "attendant" to trigger
* proper cleanup sequance (and proper signal handler !!!).
* So, reset the dont_fork (as it will force inline signal handling)*/
dont_fork = 0;
return -1;
} else { /* don't fork */
if (trans_init_all_listeners()<0) {
LM_ERR("failed to init all SIP listeners, aborting\n");
goto error;
}
/* all processes should have access to all the sockets (for sending)
* so we open all first*/
if (do_suid(uid, gid)==-1) goto error; /* try to drop privileges */
if (start_module_procs()!=0) {
LM_ERR("failed to fork module processes\n");
goto error;
}
if(startup_rlist.a) {/* if a startup route was defined */
startup_done = (int*)shm_malloc(sizeof(int));
if(startup_done == NULL) {
LM_ERR("No more shared memory\n");
goto error;
}
*startup_done = 0;
}
if (fix_socket_list(&bin) != 0) {
LM_ERR("failed to initialize binary interface socket list!\n");
goto error;
}
/* OpenSIPS <--> OpenSIPS communication interface */
if (bin && start_bin_receivers() != 0) {
LM_CRIT("cannot start binary interface receiver processes!\n");
goto error;
}
/* fork for the timer process*/
if (start_timer_processes()!=0) {
LM_CRIT("cannot start timer process(es)\n");
goto error;
}
/* fork all processes required by UDP network layer */
if (udp_start_processes( &chd_rank, startup_done)<0) {
LM_CRIT("cannot start TCP processes\n");
goto error;
}
/* fork all processes required by TCP network layer */
if (tcp_start_processes( &chd_rank, startup_done)<0) {
LM_CRIT("cannot start TCP processes\n");
goto error;
}
}
/* this is the main process -> it shouldn't send anything */
bind_address=0;
if (startup_done) {
if (*startup_done==0)
LM_CRIT("BUG: startup route defined, but not run :( \n");
shm_free(startup_done);
}
/* main process left */
is_main=1;
set_proc_attrs("attendant");
if (init_child(PROC_MAIN) < 0) {
LM_ERR("error in init_child for PROC_MAIN\n");
report_failure_status();
goto error;
}
report_conditional_status( (!no_daemon_mode), 0);
for(;;) {
handle_sigs();
pause();
}
/*return 0; */
error:
is_main=1; /* if we are here, we are the "main process",
any forked children should exit with exit(-1) and not
ever use return */
report_conditional_status( (!dont_fork), -1);
return -1;
}
/**
* Main loop, forks the children, bind to addresses,
* handle signals.
* \return don't return on sucess, -1 on error
*/
static int main_loop(void)
{
static int chd_rank;
int* startup_done = NULL;
chd_rank=0;
if (start_module_procs()!=0) {
LM_ERR("failed to fork module processes\n");
goto error;
}
if(startup_rlist.a) {/* if a startup route was defined */
startup_done = (int*)shm_malloc(sizeof(int));
if(startup_done == NULL) {
LM_ERR("No more shared memory\n");
goto error;
}
*startup_done = 0;
}
/* fork for the timer process*/
if (start_timer_processes()!=0) {
LM_CRIT("cannot start timer process(es)\n");
goto error;
}
/* fork all processes required by UDP network layer */
if (udp_start_processes( &chd_rank, startup_done)<0) {
LM_CRIT("cannot start TCP processes\n");
goto error;
}
/* fork all processes required by TCP network layer */
if (tcp_start_processes( &chd_rank, startup_done)<0) {
LM_CRIT("cannot start TCP processes\n");
goto error;
}
/* this is the main process -> it shouldn't send anything */
bind_address=0;
if (startup_done) {
if (*startup_done==0)
LM_CRIT("BUG: startup route defined, but not run :( \n");
shm_free(startup_done);
}
/* main process left */
is_main=1;
set_proc_attrs("attendant");
if (init_child(PROC_MAIN) < 0) {
LM_ERR("error in init_child for PROC_MAIN\n");
report_failure_status();
goto error;
}
report_conditional_status( (!no_daemon_mode), 0);
for(;;){
handle_sigs();
pause();
}
/*return 0; */
error:
is_main=1; /* if we are here, we are the "main process",
any forked children should exit with exit(-1) and not
ever use return */
report_failure_status();
return -1;
}
