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iris/source/alarm.ccp
2010-05-15 18:42:17 +02:00

74 lines
1.4 KiB
COBOL

#pypp 0
#include <iris.hh>
#include <ui.hh>
enum Ins:
TOTAL_TIME
START
NUM_INS
enum Outs:
CURRENT_TIME
ALARM
NUM_OUTS
typedef UI <NUM_INS, NUM_OUTS> ui_t
static ui_t ui
static ui_t::in <unsigned> total_time
static ui_t::in_event do_start
static ui_t::out <unsigned> current_time
static ui_t::out_event do_alarm
static bool ticking
static void event (unsigned code):
switch code:
case TOTAL_TIME:
break
case START:
current_time = total_time
if !ticking:
if !current_time:
do_alarm ()
else:
ticking = true
Iris::my_receiver.set_alarm (HZ)
break
default:
Iris::panic (0, "invalid event for alarm clock")
Iris::Num start ():
ticking = false;
Iris::Cap ui_cap = Iris::my_receiver.create_capability (0)
ui.init (ui_cap.copy ());
Iris::free_cap (ui_cap)
total_time.init ()
do_start.init ()
current_time.init ()
do_alarm.init ()
ui.add_in (&total_time, TOTAL_TIME);
ui.add_in (&do_start, START);
ui.add_out (&current_time, CURRENT_TIME);
ui.add_out (&do_alarm, ALARM);
Iris::my_parent.init_done ()
while true:
Iris::wait ()
switch Iris::recv.protected_data.l:
case ~0:
// alarm.
if current_time:
current_time = current_time - 1
if !current_time:
do_alarm ()
ticking = false
else:
// TODO: use rtc for scheduling an event.
Iris::my_receiver.set_alarm (HZ)
continue
case 0:
// ui event.
if !ui.event (&event):
// Exit request.
return 0