/* get event from the queue but leave it there */
PMSNHEvent
mswin_input_peek()
{
PMSNHEvent retval;
#ifdef SAFERHANGUP
/* always return ESC when hangup was requested */
if (program_state.done_hup) {
static MSNHEvent hangup_event;
hangup_event.type = NHEVENT_CHAR;
hangup_event.kbd.ch = '\033';
return &hangup_event;
}
#endif
if (!nhi_init_input)
mswin_nh_input_init();
if (nhi_read_pos != nhi_write_pos) {
retval = &nhi_input_buffer[nhi_read_pos];
} else {
retval = NULL;
}
return retval;
}
/* get event from the queue but leave it there */
PMSNHEvent mswin_input_peek(void)
{
PMSNHEvent retval;
if( !nhi_init_input ) mswin_nh_input_init();
if( nhi_read_pos!=nhi_write_pos ) {
retval = &nhi_input_buffer[nhi_read_pos];
} else {
retval = NULL;
}
return retval;
}
/* add event to the queue */
void mswin_input_push(PMSNHEvent event)
{
int new_write_pos;
if( !nhi_init_input ) mswin_nh_input_init();
new_write_pos = (nhi_write_pos+1) % NH_INPUT_BUFFER_SIZE;
if(new_write_pos!=nhi_read_pos) {
memcpy(nhi_input_buffer+nhi_write_pos, event, sizeof(*event));
nhi_write_pos = new_write_pos;
}
}
/* get event from the queue and delete it */
PMSNHEvent mswin_input_pop(void)
{
PMSNHEvent retval;
if( !nhi_init_input ) mswin_nh_input_init();
if( nhi_read_pos!=nhi_write_pos ) {
retval = &nhi_input_buffer[nhi_read_pos];
nhi_read_pos = (nhi_read_pos+1) % NH_INPUT_BUFFER_SIZE;
} else {
retval = NULL;
}
return retval;
}
