def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or TimeoutScheduler.singleton()
nonlocal duetime
if not isinstance(duetime, datetime):
duetime = _scheduler.now + _scheduler.to_timedelta(duetime)
p = max(0.0, _scheduler.to_seconds(period))
mad = MultipleAssignmentDisposable()
dt = duetime
count = 0
def action(scheduler, state):
nonlocal dt
nonlocal count
if p > 0.0:
now = scheduler.now
dt = dt + scheduler.to_timedelta(p)
if dt <= now:
dt = now + scheduler.to_timedelta(p)
observer.on_next(count)
count += 1
mad.disposable = scheduler.schedule_absolute(dt, action)
mad.disposable = _scheduler.schedule_absolute(dt, action)
return mad
def subscribe(observer, scheduler=None):
scheduler = scheduler or timeout_scheduler
mad = MultipleAssignmentDisposable()
state = [initial_state]
has_result = [False]
result = [None]
first = [True]
time = [None]
def action(scheduler, _):
if has_result[0]:
observer.on_next(result[0])
try:
if first[0]:
first[0] = False
else:
state[0] = iterate(state[0])
has_result[0] = condition(state[0])
if has_result[0]:
result[0] = state[0]
time[0] = time_mapper(state[0])
except Exception as e:
observer.on_error(e)
return
if has_result[0]:
mad.disposable = scheduler.schedule_relative(time[0], action)
else:
observer.on_completed()
mad.disposable = scheduler.schedule_relative(0, action)
return mad
def subscribe(observer, scheduler=None):
scheduler = scheduler or CurrentThreadScheduler.singleton()
first = True
state = initial_state
mad = MultipleAssignmentDisposable()
def action(scheduler, state1=None):
nonlocal first
nonlocal state
has_result = False
result = None
try:
if first:
first = False
else:
state = iterate(state)
has_result = condition(state)
if has_result:
result = state
except Exception as exception: # pylint: disable=broad-except
observer.on_error(exception)
return
if has_result:
observer.on_next(result)
mad.disposable = scheduler.schedule(action)
else:
observer.on_completed()
mad.disposable = scheduler.schedule(action)
return mad
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
nonlocal duetime
if not isinstance(duetime, datetime):
duetime = _scheduler.now + _scheduler.to_timedelta(duetime)
p = _scheduler.normalize(period)
mad = MultipleAssignmentDisposable()
dt = [duetime]
count = [0]
def action(scheduler, state):
if p > 0:
now = scheduler.now
dt[0] = dt[0] + scheduler.to_timedelta(p)
if dt[0] <= now:
dt[0] = now + scheduler.to_timedelta(p)
observer.on_next(count[0])
count[0] += 1
mad.disposable = scheduler.schedule_absolute(dt[0], action)
mad.disposable = _scheduler.schedule_absolute(dt[0], action)
return mad
def subscribe(observer, scheduler=None):
scheduler = scheduler or current_thread_scheduler
first = [True]
state = [initial_state]
mad = MultipleAssignmentDisposable()
def action(scheduler, state1=None):
has_result = False
result = None
try:
if first[0]:
first[0] = False
else:
state[0] = iterate(state[0])
has_result = condition(state[0])
if has_result:
result = state[0]
except Exception as exception: # pylint: disable=broad-except
observer.on_error(exception)
return
if has_result:
observer.on_next(result)
mad.disposable = scheduler.schedule(action)
else:
observer.on_completed()
mad.disposable = scheduler.schedule(action)
return mad
def subscribe(observer, scheduler=None):
scheduler = scheduler or timeout_scheduler
mad = MultipleAssignmentDisposable()
state = [initial_state]
has_result = [False]
result = [None]
first = [True]
time = [None]
def action(scheduler, _):
if has_result[0]:
observer.on_next(result[0])
try:
if first[0]:
first[0] = False
else:
state[0] = iterate(state[0])
has_result[0] = condition(state[0])
if has_result[0]:
result[0] = state[0]
time[0] = time_mapper(state[0])
except Exception as e:
observer.on_error(e)
return
if has_result[0]:
mad.disposable = scheduler.schedule_relative(time[0], action)
else:
observer.on_completed()
mad.disposable = scheduler.schedule_relative(0, action)
return mad
def on_next(notification):
should_run = False
with source.lock:
if notification.value.kind == 'E':
del queue[:]
queue.append(notification)
exception[0] = notification.value.exception
should_run = not running[0]
else:
queue.append(Timestamp(value=notification.value, timestamp=notification.timestamp + duetime))
should_run = not active[0]
active[0] = True
if should_run:
if exception[0]:
observer.on_error(exception[0])
else:
mad = MultipleAssignmentDisposable()
cancelable.disposable = mad
def action(scheduler, state):
if exception[0]:
return
with source.lock:
running[0] = True
while True:
result = None
if queue and queue[0].timestamp <= scheduler.now:
result = queue.pop(0).value
if result:
result.accept(observer)
if not result:
break
should_continue = False
recurse_duetime = 0
if queue:
should_continue = True
diff = queue[0].timestamp - scheduler.now
zero = timedelta(0) if isinstance(diff, timedelta) else 0
recurse_duetime = max(zero, diff)
else:
active[0] = False
ex = exception[0]
running[0] = False
if ex:
observer.on_error(ex)
elif should_continue:
mad.disposable = scheduler.schedule_relative(recurse_duetime, action)
mad.disposable = _scheduler.schedule_relative(duetime, action)
def subscribe(observer, scheduler_: typing.Scheduler = None):
nonlocal range_t
_scheduler = scheduler or scheduler_ or current_thread_scheduler
sd = MultipleAssignmentDisposable()
def action(scheduler, iterator):
try:
observer.on_next(next(iterator))
sd.disposable = _scheduler.schedule(action, state=iterator)
except StopIteration:
observer.on_completed()
sd.disposable = _scheduler.schedule(action, iter(range_t))
return sd
def schedule_periodic(
self,
period: typing.RelativeTime,
action: typing.ScheduledPeriodicAction,
state: Optional[typing.TState] = None) -> typing.Disposable:
"""Schedules a periodic piece of work.
Args:
period: Period in seconds or timedelta for running the
work periodically.
action: Action to be executed.
state: [Optional] Initial state passed to the action upon
the first iteration.
Returns:
The disposable object used to cancel the scheduled
recurring action (best effort).
"""
disp = MultipleAssignmentDisposable()
def invoke_periodic(scheduler: typing.Scheduler,
_: typing.TState) -> Optional[Disposable]:
nonlocal state
if disp.is_disposed:
return None
if period:
disp.disposable = self.schedule_relative(
period, invoke_periodic, None)
try:
new_state = action(state)
except Exception:
disp.dispose()
raise
if state is not None:
state = new_state
return None
disp.disposable = self.schedule_relative(period, invoke_periodic, None)
return disp
def schedule_periodic(self,
period: typing.RelativeTime,
action: typing.ScheduledPeriodicAction,
state: Optional[typing.TState] = None
) -> typing.Disposable:
"""Schedules a periodic piece of work.
Args:
period: Period in seconds or timedelta for running the
work periodically.
action: Action to be executed.
state: [Optional] Initial state passed to the action upon
the first iteration.
Returns:
The disposable object used to cancel the scheduled
recurring action (best effort).
"""
disp = MultipleAssignmentDisposable()
def invoke_periodic(scheduler: typing.Scheduler, _: typing.TState) -> Optional[Disposable]:
if disp.is_disposed:
return None
if period:
disp.disposable = scheduler.schedule_relative(period, invoke_periodic, None)
nonlocal state
try:
new_state = action(state)
except Exception:
disp.dispose()
raise
if state is not None:
state = new_state
return None
disp.disposable = self.schedule_relative(period, invoke_periodic, None)
return disp
def subscribe(observer, scheduler=None):
scheduler = scheduler or TimeoutScheduler.singleton()
mad = MultipleAssignmentDisposable()
state = initial_state
has_result = False
result = None
first = True
time = None
def action(scheduler, _):
nonlocal state
nonlocal has_result
nonlocal result
nonlocal first
nonlocal time
if has_result:
observer.on_next(result)
try:
if first:
first = False
else:
state = iterate(state)
has_result = condition(state)
if has_result:
result = state
time = time_mapper(state)
except Exception as e: # pylint: disable=broad-except
observer.on_error(e)
return
if has_result:
mad.disposable = scheduler.schedule_relative(time, action)
else:
observer.on_completed()
mad.disposable = scheduler.schedule_relative(0, action)
return mad
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
nonlocal duetime
if not isinstance(duetime, datetime):
duetime = _scheduler.now + _scheduler.to_timedelta(duetime)
p = _scheduler.normalize(period)
mad = MultipleAssignmentDisposable()
dt = [duetime]
count = [0]
def action(scheduler, state):
if p > 0:
now = scheduler.now
dt[0] = dt[0] + scheduler.to_timedelta(p)
if dt[0] <= now:
dt[0] = now + scheduler.to_timedelta(p)
observer.on_next(count[0])
count[0] += 1
mad.disposable = scheduler.schedule_absolute(dt[0], action)
mad.disposable = _scheduler.schedule_absolute(dt[0], action)
return mad