void
erts_sys_main_thread(void)
{
erts_thread_disable_fpe();
#ifdef __DARWIN__
initialize_darwin_main_thread_pipes();
#endif
/* Become signal receiver thread... */
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_lc_set_thread_name("signal_receiver");
#endif
smp_sig_notify(0); /* Notify initialized */
/* Wait for a signal to arrive... */
#ifdef __DARWIN__
while (1) {
/*
* The wx driver needs to be able to steal the main thread for Cocoa to
* work properly.
*/
fd_set readfds;
int res;
FD_ZERO(&readfds);
FD_SET(erts_darwin_main_thread_pipe[0], &readfds);
res = select(erts_darwin_main_thread_pipe[0] + 1, &readfds, NULL, NULL, NULL);
if (res > 0 && FD_ISSET(erts_darwin_main_thread_pipe[0],&readfds)) {
void* (*func)(void*);
void* arg;
void *resp;
res = read(erts_darwin_main_thread_pipe[0],&func,sizeof(void* (*)(void*)));
if (res != sizeof(void* (*)(void*)))
break;
res = read(erts_darwin_main_thread_pipe[0],&arg,sizeof(void*));
if (res != sizeof(void*))
break;
resp = (*func)(arg);
write(erts_darwin_main_thread_result_pipe[1],&resp,sizeof(void *));
}
if (res == -1 && errno != EINTR)
break;
}
/* Something broke with the main thread pipe, so we ignore it for now.
Most probably erts has closed this pipe and is about to exit. */
#endif /* #ifdef __DARWIN__ */
while (1) {
#ifdef DEBUG
int res =
#else
(void)
#endif
select(0, NULL, NULL, NULL, NULL);
ASSERT(res < 0);
ASSERT(errno == EINTR);
}
}
static RETSIGTYPE request_break(int signum)
{
#ifdef ERTS_SMP
smp_sig_notify(signum);
#else
break_requested();
#endif
}
static RETSIGTYPE do_quit(int signum)
#endif
{
#ifdef ERTS_SMP
smp_sig_notify('Q');
#else
quit_requested();
#endif
}
static RETSIGTYPE user_signal1(int signum)
#endif
{
#ifdef ERTS_SMP
smp_sig_notify('1');
#else
sigusr1_exit();
#endif
}
static RETSIGTYPE generic_signal_handler(int signum)
{
#ifdef ERTS_SMP
smp_sig_notify(signum);
#else
ERTS_SET_SIGNAL_STATE(signum);
ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
#endif
}
static RETSIGTYPE generic_signal_handler(int signum)
{
smp_sig_notify(signum);
}
static RETSIGTYPE request_break(int signum)
{
smp_sig_notify(signum);
}
