/* a new connection is coming in */
int DEFAULT_CC
xrdp_listen_conn_in(struct trans *self, struct trans *new_self)
{
struct xrdp_process *process;
struct xrdp_listen *lis;
lis = (struct xrdp_listen *)(self->callback_data);
if (lis->startup_params->fork)
{
return xrdp_listen_fork(lis, new_self);
}
process = xrdp_process_create(lis, lis->pro_done_event);
if (xrdp_listen_add_pro(lis, process) == 0)
{
/* start thread */
process->server_trans = new_self;
g_process = process;
tc_thread_create(xrdp_process_run, 0);
tc_sem_dec(g_process_sem); /* this will wait */
}
else
{
xrdp_process_delete(process);
}
return 0;
}
static int APP_CC
xrdp_listen_fork(struct xrdp_listen *self, struct trans *server_trans)
{
int pid;
struct xrdp_process *process;
pid = g_fork();
if (pid == 0)
{
/* child */
/* recreate some main globals */
xrdp_child_fork();
/* recreate the process done wait object, not used in fork mode */
/* close, don't delete this */
g_close_wait_obj(self->pro_done_event);
xrdp_listen_create_pro_done(self);
/* delete listener, child need not listen */
trans_delete(self->listen_trans);
self->listen_trans = 0;
/* new connect instance */
process = xrdp_process_create(self, 0);
process->server_trans = server_trans;
g_process = process;
xrdp_process_run(0);
xrdp_process_delete(process);
/* mark this process to exit */
g_set_term(1);
return 0;
}
/* parent */
trans_delete(server_trans);
return 0;
}
/* wait for incoming connections */
int APP_CC
xrdp_listen_main_loop(struct xrdp_listen* self)
{
int error;
int robjs_count;
int cont;
char port[8];
tbus robjs[8];
tbus term_obj;
tbus sync_obj;
tbus sck_obj;
tbus done_obj;
struct xrdp_process* process;
self->status = 1;
xrdp_listen_get_port(port, sizeof(port));
self->sck = g_tcp_socket();
g_tcp_set_non_blocking(self->sck);
error = g_tcp_bind(self->sck, port);
if (error != 0)
{
g_writeln("bind error in xrdp_listen_main_loop");
g_tcp_close(self->sck);
self->status = -1;
return 1;
}
error = g_tcp_listen(self->sck);
if (error == 0)
{
term_obj = g_get_term_event();
sync_obj = g_get_sync_event();
sck_obj = g_create_wait_obj_from_socket(self->sck, 0);
done_obj = self->pro_done_event;
cont = 1;
while (cont)
{
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = term_obj;
robjs[robjs_count++] = sync_obj;
robjs[robjs_count++] = sck_obj;
robjs[robjs_count++] = done_obj;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(term_obj)) /* term */
{
break;
}
if (g_is_wait_obj_set(sync_obj)) /* sync */
{
g_reset_wait_obj(sync_obj);
g_loop();
}
if (g_is_wait_obj_set(sck_obj)) /* incomming connection */
{
error = g_tcp_accept(self->sck);
if ((error == -1) && g_tcp_last_error_would_block(self->sck))
{
/* should not get here */
g_sleep(100);
}
else if (error == -1)
{
/* error, should not get here */
break;
}
else
{
process = xrdp_process_create(self, self->pro_done_event);
if (xrdp_listen_add_pro(self, process) == 0)
{
/* start thread */
process->sck = error;
g_process = process;
tc_thread_create(xrdp_process_run, 0);
tc_sem_dec(g_process_sem); /* this will wait */
}
else
{
xrdp_process_delete(process);
}
}
}
if (g_is_wait_obj_set(done_obj)) /* pro_done_event */
{
g_reset_wait_obj(done_obj);
xrdp_listen_delete_done_pro(self);
}
}
/* stop listening */
g_delete_wait_obj_from_socket(sck_obj);
g_tcp_close(self->sck);
/* second loop to wait for all process threads to close */
cont = 1;
while (cont)
{
if (self->process_list->count == 0)
{
break;
}
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = sync_obj;
robjs[robjs_count++] = done_obj;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(sync_obj)) /* sync */
{
g_reset_wait_obj(sync_obj);
g_loop();
}
if (g_is_wait_obj_set(done_obj)) /* pro_done_event */
{
g_reset_wait_obj(done_obj);
xrdp_listen_delete_done_pro(self);
}
}
}
else
{
DEBUG(("listen error in xrdp_listen_main_loop"));
}
self->status = -1;
return 0;
}