def subscribe(observer, scheduler=None): scheduler = scheduler or current_thread_scheduler subscription = SerialDisposable() cancelable = SerialDisposable() is_disposed = False def action(action1, state=None): nonlocal is_disposed if is_disposed: return def on_completed(): cancelable.disposable = scheduler.schedule(action) try: current = next(sources_) except StopIteration: observer.on_completed() except Exception as ex: # pylint: disable=broad-except observer.on_error(ex) else: d = SingleAssignmentDisposable() subscription.disposable = d d.disposable = current.subscribe_(observer.on_next, observer.on_error, on_completed, scheduler) cancelable.disposable = scheduler.schedule(action) def dispose(): nonlocal is_disposed is_disposed = True return CompositeDisposable(subscription, cancelable, Disposable(dispose))
def subscribe(observer, scheduler=None): scheduler = scheduler or current_thread_scheduler subscription = SerialDisposable() cancelable = SerialDisposable() last_exception = [None] is_disposed = [] def action(action1, state=None): def on_error(exn): last_exception[0] = exn cancelable.disposable = scheduler.schedule(action) if is_disposed: return try: current = next(sources) except StopIteration: if last_exception[0]: observer.on_error(last_exception[0]) else: observer.on_completed() except Exception as ex: # pylint: disable=broad-except observer.on_error(ex) else: d = SingleAssignmentDisposable() subscription.disposable = d d.disposable = current.subscribe_(observer.on_next, on_error, observer.on_completed, scheduler) cancelable.disposable = scheduler.schedule(action) def dispose(): is_disposed.append(True) return CompositeDisposable(subscription, cancelable, Disposable(dispose))
def subscribe(observer, scheduler=None): scheduler = scheduler or current_thread_scheduler subscription = SerialDisposable() cancelable = SerialDisposable() def action(scheduler, state=None): try: source = next(sources) except StopIteration: observer.on_completed() return # Allow source to be a factory method taking an error source = source(state) if callable(source) else source current = rx.from_future(source) if is_future(source) else source d = SingleAssignmentDisposable() subscription.disposable = d def on_resume(state=None): scheduler.schedule(action, state) d.disposable = current.subscribe_(observer.on_next, on_resume, on_resume, scheduler) cancelable.disposable = scheduler.schedule(action) return CompositeDisposable(subscription, cancelable)
def subscribe(observer, scheduler_=None): _scheduler = scheduler or scheduler_ or TimeoutScheduler.singleton( ) if isinstance(duetime, datetime): scheduler_method = _scheduler.schedule_absolute else: scheduler_method = _scheduler.schedule_relative switched = [False] _id = [0] original = SingleAssignmentDisposable() subscription = SerialDisposable() timer = SerialDisposable() subscription.disposable = original def create_timer(): my_id = _id[0] def action(scheduler, state=None): switched[0] = (_id[0] == my_id) timer_wins = switched[0] if timer_wins: subscription.disposable = obs.subscribe( observer, scheduler=scheduler) timer.disposable = scheduler_method(duetime, action) create_timer() def on_next(value): send_wins = not switched[0] if send_wins: _id[0] += 1 observer.on_next(value) create_timer() def on_error(error): on_error_wins = not switched[0] if on_error_wins: _id[0] += 1 observer.on_error(error) def on_completed(): on_completed_wins = not switched[0] if on_completed_wins: _id[0] += 1 observer.on_completed() original.disposable = source.subscribe_(on_next, on_error, on_completed, scheduler_) return CompositeDisposable(subscription, timer)
def run(self): self.subscription = SerialDisposable() self.timer = SerialDisposable() original = SingleAssignmentDisposable() self.subscription.disposable = original self.gate = RLock() self.currentId = 0 self.switched = False self.createTimer() original.disposable = self.parent.source.subscribeSafe(self) return CompositeDisposable(self.subscription, self.timer)
def test_return_disposed_after_next(self): scheduler = TestScheduler() d = SerialDisposable() xs = rx.return_value(42) results = scheduler.create_observer() def action(scheduler, state): def on_next(x): d.dispose() results.on_next(x) def on_error(e): results.on_error(e) def on_completed(): results.on_completed() d.disposable = xs.subscribe(on_next, on_error, on_completed, scheduler=scheduler) return d.disposable scheduler.schedule_absolute(100, action) scheduler.start() assert results.messages == [on_next(100, 42)]
def run(self): self.scheduler = self.parent.scheduler self.cancelTimer = SerialDisposable() self.gate = RLock() self.active = False # as soon as a value arrived self.running = False # on relative: True, on absolute: True after absolute time self.queue = deque() self.hasCompleted = False self.completeAt = 0 self.hasFailed = False self.exception = None self.delay = 0 self.startTime = self.scheduler.now() if self.parent.isAbsolute: self.ready = False self.cancelTimer.disposable = self.scheduler.scheduleWithAbsolute( self.parent.dueTime, self.start) else: self.ready = True self.delay = Scheduler.normalize(self.parent.dueTime) self.sourceSubscription = SingleAssignmentDisposable() self.sourceSubscription.disposable = self.parent.source.subscribeSafe( self) return CompositeDisposable(self.sourceSubscription, self.cancelTimer)
def run(self): self.scheduler = self.parent.scheduler self.cancelTimer = SerialDisposable() self.gate = RLock() self.evt = Semaphore(0) self.stopped = False self.stop = Event() self.queue = deque() self.hasCompleted = False self.completeAt = 0 self.hasFailed = False self.exception = None self.delay = 0 self.startTime = self.scheduler.now() if self.parent.isAbsolute: self.cancelTimer.disposable = self.scheduler.scheduleAbsolute( self.parent.dueTime, self.start) else: self.delay = Scheduler.normalize(self.parent.dueTime) self.scheduleDrain() self.sourceSubscription = SingleAssignmentDisposable() self.sourceSubscription.disposable = self.parent.source.subscribeSafe( self) return CompositeDisposable(self.sourceSubscription, self.cancelTimer)
def run(self, sources): self.isDisposed = False self.subscription = SerialDisposable() self.gate = AsyncLock() self.stack = [] self.length = [] self.stack.append(iter(sources)) try: length = len(sources) except TypeError: self.length.append(-1) else: self.length.append(length) def scheduled(continuation): self.recurse = continuation self.gate.wait(self.moveNext) cancel = Scheduler.tailRecursion.scheduleRecursive(scheduled) return CompositeDisposable( self.subscription, cancel, Disposable.create(lambda: self.gate.wait(self.dispose)))
def subscribe(observer, scheduler=None) -> Disposable: cancelable = SerialDisposable() has_value = [False] value = [None] _id = [0] def on_next(x): throttle = None try: throttle = throttle_duration_mapper(x) except Exception as e: # pylint: disable=broad-except observer.on_error(e) return has_value[0] = True value[0] = x _id[0] += 1 current_id = _id[0] d = SingleAssignmentDisposable() cancelable.disposable = d def on_next(x: Any) -> None: if has_value[0] and _id[0] == current_id: observer.on_next(value[0]) has_value[0] = False d.dispose() def on_completed() -> None: if has_value[0] and _id[0] == current_id: observer.on_next(value[0]) has_value[0] = False d.dispose() d.disposable = throttle.subscribe_(on_next, observer.on_error, on_completed, scheduler=scheduler) def on_error(e) -> None: cancelable.dispose() observer.on_error(e) has_value[0] = False _id[0] += 1 def on_completed() -> None: cancelable.dispose() if has_value[0]: observer.on_next(value[0]) observer.on_completed() has_value[0] = False _id[0] += 1 subscription = source.subscribe_(on_next, on_error, on_completed, scheduler=scheduler) return CompositeDisposable(subscription, cancelable)
def subscribe(observer, scheduler=None): d1 = SingleAssignmentDisposable() subscription = SerialDisposable() subscription.disposable = d1 def on_error(exception): try: result = handler(exception, source) except Exception as ex: # By design. pylint: disable=W0703 observer.on_error(ex) return result = rx.from_future(result) if is_future(result) else result d = SingleAssignmentDisposable() subscription.disposable = d d.disposable = result.subscribe(observer, scheduler=scheduler) d1.disposable = source.subscribe_( observer.on_next, on_error, observer.on_completed, scheduler ) return subscription
def subscribe(observer, scheduler_=None): _scheduler = scheduler or scheduler_ or TimeoutScheduler.singleton() n = [0] s = [None] timer_d = SerialDisposable() window_id = [0] group_disposable = CompositeDisposable(timer_d) ref_count_disposable = RefCountDisposable(group_disposable) def create_timer(_id): m = SingleAssignmentDisposable() timer_d.disposable = m def action(scheduler, state): if _id != window_id[0]: return n[0] = 0 window_id[0] += 1 new_id = window_id[0] s[0].on_completed() s[0] = Subject() observer.on_next(add_ref(s[0], ref_count_disposable)) create_timer(new_id) m.disposable = _scheduler.schedule_relative(timespan, action) s[0] = Subject() observer.on_next(add_ref(s[0], ref_count_disposable)) create_timer(0) def on_next(x): new_window = False new_id = 0 s[0].on_next(x) n[0] += 1 if n[0] == count: new_window = True n[0] = 0 window_id[0] += 1 new_id = window_id[0] s[0].on_completed() s[0] = Subject() observer.on_next(add_ref(s[0], ref_count_disposable)) if new_window: create_timer(new_id) def on_error(e): s[0].on_error(e) observer.on_error(e) def on_completed(): s[0].on_completed() observer.on_completed() group_disposable.add(source.subscribe_(on_next, on_error, on_completed, scheduler_)) return ref_count_disposable
def test_starmap_dispose_inside_mapper(self): scheduler = TestScheduler() xs = scheduler.create_hot_observable( # 100 create on_next(110, (1, 10)), # 200 subscribe on_next(210, (2, 20)), on_next(310, (3, 30)), on_next(410, (4, 40))) results = scheduler.create_observer() d = SerialDisposable() invoked = [0] def mapper(x, y): invoked[0] += 1 if scheduler.clock > 250: d.dispose() return x + y d.disposable = xs.pipe(ops.starmap(mapper)).subscribe( results, scheduler) def action(scheduler, state): return d.dispose() scheduler.schedule_absolute(ReactiveTest.disposed, action) scheduler.start() assert results.messages == [on_next(110, 11), on_next(210, 22)] assert xs.subscriptions == [ReactiveTest.subscribe(0, 310)] assert invoked[0] == 3
def test_map_disposeinsidemapper(self): scheduler = TestScheduler() xs = scheduler.create_hot_observable(on_next(100, 1), on_next(200, 2), on_next(500, 3), on_next(600, 4)) results = scheduler.create_observer() d = SerialDisposable() invoked = [0] def projection(x, *args, **kw): invoked[0] += 1 if scheduler.clock > 400: d.dispose() return x d.disposable = xs.pipe(map(projection)).subscribe(results, scheduler) def action(scheduler, state): return d.dispose() scheduler.schedule_absolute(ReactiveTest.disposed, action) scheduler.start() assert results.messages == [on_next(100, 1), on_next(200, 2)] assert xs.subscriptions == [ReactiveTest.subscribe(0, 500)] assert invoked[0] == 3
def test_map_with_index_dispose_inside_mapper(self): scheduler = TestScheduler() xs = scheduler.create_hot_observable(on_next(100, 4), on_next(200, 3), on_next(500, 2), on_next(600, 1)) invoked = [0] results = scheduler.create_observer() d = SerialDisposable() def projection(x, index): invoked[0] += 1 if scheduler.clock > 400: d.dispose() return x + index * 10 d.disposable = xs.pipe(map_indexed(projection)).subscribe(results) def action(scheduler, state): return d.dispose() scheduler.schedule_absolute(disposed, action) scheduler.start() assert results.messages == [on_next(100, 4), on_next(200, 13)] assert xs.subscriptions == [subscribe(0, 500)] assert invoked[0] == 3
def run(self): self.subscription = SerialDisposable() d = SingleAssignmentDisposable() self.subscription.disposable = d d.disposable = self.parent.source.subscribeSafe(self) return self.subscription
def subscribe(observer, scheduler=None): scheduler = scheduler or immediate_scheduler queue = [] m = SerialDisposable() d = CompositeDisposable(m) active_count = [0] is_acquired = [False] def ensure_active(): is_owner = False if queue: is_owner = not is_acquired[0] is_acquired[0] = True def action(scheduler, state): if queue: work = queue.pop(0) else: is_acquired[0] = False return sad = SingleAssignmentDisposable() d.add(sad) def on_next(value): observer.on_next(value) result = None try: result = mapper(value) except Exception as ex: observer.on_error(ex) return queue.append(result) active_count[0] += 1 ensure_active() def on_complete(): d.remove(sad) active_count[0] -= 1 if active_count[0] == 0: observer.on_completed() sad.disposable = work.subscribe_(on_next, observer.on_error, on_complete, scheduler) m.disposable = scheduler.schedule(action) if is_owner: m.disposable = scheduler.schedule(action) queue.append(source) active_count[0] += 1 ensure_active() return d
def run(self): self.gate = RLock() self.value = None self.hasValue = False self.throttleDisposable = SerialDisposable() self.resourceId = 0 subscription = self.parent.source.subscribeSafe(self) return CompositeDisposable(subscription, self.throttleDisposable)
def subscribe(observer, _=None): m = SingleAssignmentDisposable() d = SerialDisposable() d.disposable = m def action(scheduler, state): d.disposable = ScheduledDisposable(scheduler, source.subscribe(observer)) m.disposable = scheduler.schedule(action) return d
def __init__(self, scheduler: typing.Scheduler, single: Single) -> None: super().__init__() self.scheduler = scheduler self.single = single self.lock = threading.RLock() self.is_acquired = False self.has_faulted = False self.queue: List[typing.Action] = [] self.disposable = SerialDisposable()
def subscribe(observer, scheduler_=None): _scheduler = scheduler_ or CurrentThreadScheduler.singleton() subscription = SerialDisposable() cancelable = SerialDisposable() last_exception = None is_disposed = False def action(action1, state=None): def on_error(exn): nonlocal last_exception last_exception = exn cancelable.disposable = _scheduler.schedule(action) if is_disposed: return try: current = next(sources_) except StopIteration: if last_exception: observer.on_error(last_exception) else: observer.on_completed() except Exception as ex: # pylint: disable=broad-except observer.on_error(ex) else: d = SingleAssignmentDisposable() subscription.disposable = d d.disposable = current.subscribe_(observer.on_next, on_error, observer.on_completed, scheduler_) cancelable.disposable = _scheduler.schedule(action) def dispose(): nonlocal is_disposed is_disposed = True return CompositeDisposable(subscription, cancelable, Disposable(dispose))
def run(self): self.gate = RLock() self.list = [] self.n = 0 self.windowId = 0 self.timerDisposable = SerialDisposable() self.createTimer(0) subscription = self.parent.source.subscribeSafe(self) return CompositeDisposable(self.timerDisposable, subscription)
def __init__(self, scheduler: abc.Scheduler, observer: abc.Observer) -> None: super().__init__() self.scheduler = scheduler self.observer = observer self.lock = threading.RLock() self.is_acquired = False self.has_faulted = False self.queue: List[Action] = [] self.disposable = SerialDisposable()
def run(self): self.gate = RLock() self.innerSubscription = SerialDisposable() self.isStopped = False self.latest = 0 self.hasLatest = False self.subscription = SingleAssignmentDisposable() self.subscription.disposable = self.parent.sources.subscribeSafe( self) return CompositeDisposable(self.subscription, self.innerSubscription)
def run(self): self.delays = CompositeDisposable() self.gate = RLock() self.atEnd = False self.subscription = SerialDisposable() if self.parent.subscriptionDelay == None: self.start() else: self.subscription.disposable = self.parent.subscriptionDelay.subscribeSafe( self.Sigma(self)) return CompositeDisposable(self.subscription, self.delays)
def subscribe(observer, scheduler=None): inner_subscription = SerialDisposable() has_latest = [False] is_stopped = [False] latest = [0] def on_next(inner_source: Union[Observable, Future]): nonlocal source d = SingleAssignmentDisposable() with source.lock: latest[0] += 1 _id = latest[0] has_latest[0] = True inner_subscription.disposable = d # Check if Future or Observable if is_future(inner_source): obs = from_future(cast(Future, inner_source)) else: obs = cast(Observable, inner_source) def on_next(x: Any) -> None: if latest[0] == _id: observer.on_next(x) def on_error(e: Exception) -> None: if latest[0] == _id: observer.on_error(e) def on_completed() -> None: if latest[0] == _id: has_latest[0] = False if is_stopped[0]: observer.on_completed() d.disposable = obs.subscribe_(on_next, on_error, on_completed, scheduler=scheduler) def on_completed() -> None: is_stopped[0] = True if not has_latest[0]: observer.on_completed() subscription = source.subscribe_(on_next, observer.on_error, on_completed, scheduler=scheduler) return CompositeDisposable(subscription, inner_subscription)
def __init__(self, scheduler, observer): super(ScheduledObserver, self).__init__() self.scheduler = scheduler self.observer = observer self.state = Atomic(ScheduledObserver.STOPPED, self.lock) self.disposable = SerialDisposable() self.failed = False self.exception = None self.completed = False self.queue = Queue() self.dispatcherJob = None self.dispatcherEvent = Semaphore(0)
def subscribe(observer, scheduler=None): delays = CompositeDisposable() at_end = [False] def done(): if (at_end[0] and delays.length == 0): observer.on_completed() subscription = SerialDisposable() def start(): def on_next(x): try: delay = mapper(x) except Exception as error: observer.on_error(error) return d = SingleAssignmentDisposable() delays.add(d) def on_next(_): observer.on_next(x) delays.remove(d) done() def on_completed(): observer.on_next(x) delays.remove(d) done() d.disposable = delay.subscribe_(on_next, observer.on_error, on_completed, scheduler) def on_completed(): at_end[0] = True subscription.dispose() done() subscription.disposable = source.subscribe_(on_next, observer.on_error, on_completed, scheduler) if not sub_delay: start() else: subscription.disposable(sub_delay.subscribe_( lambda _: start(), observer.on_error, start)) return CompositeDisposable(subscription, delays)
def subscribe(observer, scheduler_=None) -> Disposable: _scheduler = scheduler or scheduler_ or TimeoutScheduler.singleton( ) cancelable = SerialDisposable() button_state = [None] press_time: List[float] = [0.] def set_state(state): button_state[0] = state observer.on_next(button_state[0]) set_state(ROOM['notPressed']) def on_next(x: Any) -> None: now = time.time() if button_state[0] == ROOM['notPressed']: set_state(ROOM['pressed']) press_time[0] = now elif button_state[0] == ROOM['pressed']: if now > press_time[0] + min_hold_sec: set_state(ROOM['held']) # should be pressed AND held elif button_state[0] == ROOM['held']: pass else: raise NotImplementedError(f'button_state={button_state}') d = SingleAssignmentDisposable() cancelable.disposable = d def action(scheduler, state=None) -> None: if button_state[0] != ROOM['notPressed']: set_state(ROOM['notPressed']) d.disposable = _scheduler.schedule_relative( release_after_sec, action) def on_error(exception: Exception) -> None: cancelable.dispose() observer.on_error(exception) def on_completed() -> None: raise NotImplementedError subscription = source.subscribe_(on_next, on_error, on_completed, scheduler=scheduler_) return CompositeDisposable(subscription, cancelable)
def test_mutabledisposable_dispose(): disp = [False] m = SerialDisposable() def action(): disp[0] = True d = Disposable(action) m.disposable = d assert d == m.disposable assert not disp[0] m.dispose() assert disp[0] assert m.disposable == None