int main_loop(void *opaque)
{
- struct pollfd ufds[2], *pf, *serial_ufd, *net_ufd, *gdb_ufd;
- int ret, n, timeout;
+ struct pollfd ufds[3], *pf, *serial_ufd, *net_ufd, *gdb_ufd;
+ int ret, n, timeout, serial_ok;
uint8_t ch;
CPUState *env = global_env;
term_init();
}
+ serial_ok = 1;
for(;;) {
ret = cpu_x86_exec(env);
if (reset_requested)
/* poll any events */
serial_ufd = NULL;
pf = ufds;
- if (!(serial_ports[0].lsr & UART_LSR_DR)) {
+ if (serial_ok && !(serial_ports[0].lsr & UART_LSR_DR)) {
serial_ufd = pf;
pf->fd = 0;
pf->events = POLLIN;
n = read(0, &ch, 1);
if (n == 1) {
serial_received_byte(&serial_ports[0], ch);
+ } else {
+ /* Closed, stop polling. */
+ serial_ok = 0;
}
}
if (net_ufd && (net_ufd->revents & POLLIN)) {