unsigned char check_handle_break(struct dhdr FAR **pdev)
{
unsigned char c = CTL_C;
if (!ctrl_break_pressed())
c = (unsigned char)ndread(&syscon);
if (c != CTL_C && *pdev != syscon)
c = (unsigned char)ndread(pdev);
if (c == CTL_C)
handle_break(pdev, -1);
return c;
}
int con_break(void)
{
int c = ndread(&syscon);
if (c == CTL_C)
con_skip_char(&syscon);
return c;
}
STATIC void con_hold(struct dhdr FAR **pdev)
{
int c = check_handle_break();
if (*pdev != syscon)
c = ndread(pdev);
if (c == CTL_S || c == CTL_C)
{
con_skip_char(pdev);
Do_DosIdle_loop(pdev);
/* just wait */
check_handle_break();
con_skip_char(pdev);
}
}
