void tcp_receive_loop(int unix_sock)
{
/* init */
tcpmain_sock=unix_sock; /* init com. socket */
if (init_io_wait(&io_w, tcp_max_fd_no, tcp_poll_method)<0)
goto error;
/* add the unix socket */
if (io_watch_add(&io_w, tcpmain_sock, F_TCPMAIN, 0)<0){
LM_CRIT("failed to add socket to the fd list\n");
goto error;
}
/* main loop */
switch(io_w.poll_method){
case POLL_POLL:
while(1){
io_wait_loop_poll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_receive_timeout();
}
break;
#ifdef HAVE_SELECT
case POLL_SELECT:
while(1){
io_wait_loop_select(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_receive_timeout();
}
break;
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
while(1){
io_wait_loop_sigio_rt(&io_w, TCP_CHILD_SELECT_TIMEOUT);
tcp_receive_timeout();
}
break;
#endif
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
while(1){
io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_receive_timeout();
}
break;
case POLL_EPOLL_ET:
while(1){
io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 1);
tcp_receive_timeout();
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
while(1){
io_wait_loop_kqueue(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_receive_timeout();
}
break;
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
while(1){
io_wait_loop_devpoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_receive_timeout();
}
break;
#endif
default:
LM_CRIT("no support for poll method %s (%d)\n",
poll_method_name(io_w.poll_method), io_w.poll_method);
goto error;
}
error:
destroy_io_wait(&io_w);
LM_CRIT("exiting...");
exit(-1);
}
/*! \brief tcp main loop */
void tcp_main_loop(void)
{
struct socket_info* si;
int r;
/* init io_wait (here because we want the memory allocated only in
* the tcp_main process) */
/*! \todo FIXME: TODO: make tcp_max_fd_no a config param */
if (init_io_wait(&io_h, tcp_max_fd_no, tcp_poll_method)<0)
goto error;
/* init: start watching all the fds*/
/* add all the sockets we listens on for connections */
for (si=tcp_listen; si; si=si->next){
if ((si->proto==PROTO_TCP) &&(si->socket!=-1)){
if (io_watch_add(&io_h, si->socket, F_SOCKINFO, si)<0){
LM_CRIT("failed to add listen socket to the fd list\n");
goto error;
}
}else{
LM_CRIT("non tcp address in tcp_listen\n");
}
}
#ifdef USE_TLS
if (!tls_disable){
for (si=tls_listen; si; si=si->next){
if ((si->proto==PROTO_TLS) && (si->socket!=-1)){
if (io_watch_add(&io_h, si->socket, F_SOCKINFO, si)<0){
LM_CRIT("failed to add tls listen socket to the fd list\n");
goto error;
}
}else{
LM_CRIT("non tls address in tls_listen\n");
}
}
}
#endif
/* add all the unix sockets used for communcation with other opensips
* processes (get fd, new connection a.s.o) */
for (r=1; r<counted_processes; r++){
/* skip myslef (as process) and -1 socks (disabled)
(we can't have 0, we never close it!) */
if (r!=process_no && pt[r].unix_sock>0)
if (io_watch_add(&io_h, pt[r].unix_sock, F_PROC, &pt[r])<0){
LM_CRIT("failed to add process %d (%s) unix socket "
"to the fd list\n", r, pt[r].desc);
goto error;
}
}
/* add all the unix sokets used for communication with the tcp childs */
for (r=0; r<tcp_children_no; r++){
if (tcp_children[r].unix_sock>0)/*we can't have 0, we never close it!*/
if (io_watch_add(&io_h, tcp_children[r].unix_sock, F_TCPCHILD,
&tcp_children[r]) <0){
LM_CRIT("failed to add tcp child %d unix socket to "
"the fd list\n", r);
goto error;
}
}
/* main loop */
switch(io_h.poll_method){
case POLL_POLL:
while(1){
/* wait and process IO */
io_wait_loop_poll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0);
/* remove old connections */
tcpconn_timeout(0);
}
break;
#ifdef HAVE_SELECT
case POLL_SELECT:
while(1){
io_wait_loop_select(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0);
tcpconn_timeout(0);
}
break;
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
while(1){
io_wait_loop_sigio_rt(&io_h, TCP_MAIN_SELECT_TIMEOUT);
tcpconn_timeout(0);
}
break;
#endif
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
while(1){
io_wait_loop_epoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0);
tcpconn_timeout(0);
}
break;
case POLL_EPOLL_ET:
while(1){
io_wait_loop_epoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 1);
tcpconn_timeout(0);
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
while(1){
io_wait_loop_kqueue(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0);
tcpconn_timeout(0);
}
break;
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
while(1){
io_wait_loop_devpoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0);
tcpconn_timeout(0);
}
break;
#endif
default:
LM_CRIT("no support for poll method %s (%d)\n",
poll_method_name(io_h.poll_method), io_h.poll_method);
goto error;
}
error:
destroy_io_wait(&io_h);
LM_CRIT("exiting...");
exit(-1);
}
void tcp_receive_loop(int unix_sock)
{
/* init */
tcpmain_sock=unix_sock; /* init com. socket */
if (init_io_wait(&io_w, get_max_open_fds(), tcp_poll_method)<0)
goto error;
tcp_reader_prev_ticks=get_ticks_raw();
if (init_local_timer(&tcp_reader_ltimer, get_ticks_raw())!=0)
goto error;
/* add the unix socket */
if (io_watch_add(&io_w, tcpmain_sock, POLLIN, F_TCPMAIN, 0)<0){
LM_CRIT("failed to add socket to the fd list\n");
goto error;
}
/* initialize the config framework */
if (cfg_child_init()) goto error;
/* main loop */
switch(io_w.poll_method){
case POLL_POLL:
while(1){
io_wait_loop_poll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_reader_timer_run();
}
break;
#ifdef HAVE_SELECT
case POLL_SELECT:
while(1){
io_wait_loop_select(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_reader_timer_run();
}
break;
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
while(1){
io_wait_loop_sigio_rt(&io_w, TCP_CHILD_SELECT_TIMEOUT);
tcp_reader_timer_run();
}
break;
#endif
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
while(1){
io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_reader_timer_run();
}
break;
case POLL_EPOLL_ET:
while(1){
io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 1);
tcp_reader_timer_run();
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
while(1){
io_wait_loop_kqueue(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_reader_timer_run();
}
break;
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
while(1){
io_wait_loop_devpoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0);
tcp_reader_timer_run();
}
break;
#endif
default:
LM_CRIT("no support for poll method %s (%d)\n",
poll_method_name(io_w.poll_method), io_w.poll_method);
goto error;
}
error:
destroy_io_wait(&io_w);
LM_CRIT("exiting...");
exit(-1);
}