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):
group = CompositeDisposable()
is_stopped = [False]
m = SingleAssignmentDisposable()
group.add(m)
def on_next(inner_source):
inner_subscription = SingleAssignmentDisposable()
group.add(inner_subscription)
inner_source = from_future(inner_source) if is_future(inner_source) else inner_source
@synchronized(source.lock)
def on_completed():
group.remove(inner_subscription)
if is_stopped[0] and len(group) == 1:
observer.on_completed()
on_next = synchronized(source.lock)(observer.on_next)
on_error = synchronized(source.lock)(observer.on_error)
subscription = inner_source.subscribe_(on_next, on_error, on_completed, scheduler)
inner_subscription.disposable = subscription
def on_completed():
is_stopped[0] = True
if len(group) == 1:
observer.on_completed()
m.disposable = source.subscribe_(on_next, observer.on_error, on_completed, scheduler)
return group
def createTimer(self):
m = SingleAssignmentDisposable()
self.timerDisposable.disposable = m
isSpan = False
isShift = False
if self.nextSpan == self.nextShift:
isSpan = True
isShift = True
elif self.nextShift < self.nextShift:
isSpan = True
else:
isShift = True
newTotalTime = self.nextSpan if isSpan else self.nextShift
ts = newTotalTime - self.totalTime
self.totalTime = newTotalTime
if isSpan:
self.nextSpan += self.parent.timeShift
if isShift:
self.nextShift += self.parent.timeShift
m.disposable = self.parent.scheduler.scheduleWithRelativeAndState(
Struct(isSpan=isSpan, isShift=isShift),
ts,
self.tick
)
def schedulePeriodicWithState(self, state, period, action):
failed = False
failureLock = RLock
d = SingleAssignmentDisposable()
def scheduled(_state):
with failureLock:
nonlocal failed
if failed:
return None
try:
return action(_state)
except Exception as e:
failed = True
if not self.handler(e):
raise e
d.dispose()
return None
d.disposable = self._scheduler.schedulePeriodicWithState(
state,
period,
scheduled
)
return d
def subscribe(observer, scheduler=None):
is_open = [False]
def on_next(left):
if is_open[0]:
observer.on_next(left)
def on_completed():
if is_open[0]:
observer.on_completed()
subs = source.subscribe_(on_next, observer.on_error, on_completed, scheduler)
subscriptions = CompositeDisposable(subs)
right_subscription = SingleAssignmentDisposable()
subscriptions.add(right_subscription)
def on_next2(x):
is_open[0] = True
right_subscription.dispose()
def on_completed2():
right_subscription.dispose()
right_subscription.disposable = other.subscribe_(on_next2, observer.on_error, on_completed2, scheduler)
return subscriptions
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).
"""
d = SingleAssignmentDisposable()
failed = False
def periodic_action(periodic_state) -> Optional[typing.TState]:
nonlocal failed
if not failed:
try:
return action(periodic_state)
except Exception as ex:
failed = True
if not self._handler(ex):
raise
d.dispose()
return None
d.disposable = self._scheduler.schedule_periodic(period, periodic_action, state=state)
return d
def run(self):
srcs = list(self.parent.sources)
N = len(srcs)
self.queues = [None] * N
self.isDone = [False] * N
self.subscriptions = [None] * N
self.gate = RLock()
for i in range(0, N):
self.queues[i] = deque()
# Loop twice because subscribing could already yield
# a value before all queues are initialized
for i in range(0, N):
d = SingleAssignmentDisposable()
self.subscriptions[i] = d
o = self.O(self, i)
d.disposable = srcs[i].subscribeSafe(o)
c = CompositeDisposable(self.subscriptions)
def dispose():
for q in self.queues:
q.clear()
c.add(Disposable.create(dispose))
return c
def onNext(self, value):
resourceId = 0
with self.parent.gate:
self.parent.rightID += 1
resourceId = self.parent.rightID
self.parent.rightMap[resourceId] = value
# AddRef was originally WindowObservable but this is just an alias for AddRef
md = SingleAssignmentDisposable()
self.parent.group.add(md)
try:
duration = self.parent.parent.rightDurationSelector(value)
except Exception as e:
self.parent.observer.onError(e)
self.parent.dispose()
return
else:
md.disposable = duration.subscribeSafe(self.Delta(self, resourceId, md))
with self.parent.gate:
for leftValue in self.parent.leftMap.values():
try:
result = self.parent.parent.resultSelector(leftValue, value)
except Exception as e:
self.parent.observer.onError(e)
self.parent.dispose()
return
else:
self.parent.observer.onNext(result)
def send_right(value):
with left.lock:
_id = right_id[0]
right_id[0] += 1
right_map[_id] = value
md = SingleAssignmentDisposable()
group.add(md)
def expire():
del right_map[_id]
group.remove(md)
try:
duration = right_duration_mapper(value)
except Exception as e:
for left_value in left_map.values():
left_value.on_error(e)
observer.on_error(e)
return
def on_error(error):
with left.lock:
for left_value in left_map.values():
left_value.on_error(error)
observer.on_error(error)
md.disposable = duration.pipe(ops.take(1)).subscribe_(nothing, on_error, expire, scheduler)
with left.lock:
for left_value in left_map.values():
left_value.on_next(value)
def subscribe_all(parent, *children):
values = [NO_VALUE for _ in children]
def subscribe_child(i, child):
subscription = SingleAssignmentDisposable()
def on_next(value):
with parent.lock:
values[i] = value
subscription.disposable = child.subscribe_(on_next, observer.on_error, scheduler=scheduler)
return subscription
parent_subscription = SingleAssignmentDisposable()
def on_next(value):
with parent.lock:
if NO_VALUE not in values:
result = (value,) + tuple(values)
observer.on_next(result)
disp = parent.subscribe_(on_next, observer.on_error, observer.on_completed, scheduler)
parent_subscription.disposable = disp
children_subscription = [subscribe_child(i, child) for i, child in enumerate(children)]
return [parent_subscription] + children_subscription
def onNext(self, value):
s = Subject()
resourceId = 0
with self.parent.gate:
self.parent.leftID += 1
resourceId = self.parent.leftID
self.parent.leftMap[resourceId] = s
# AddRef was originally WindowObservable but this is just an alias for AddRef
window = AddRef(s, self.parent.refCount)
md = SingleAssignmentDisposable()
self.parent.group.add(md)
try:
duration = self.parent.parent.leftDurationSelector(value)
except Exception as e:
self.onError(e)
return
else:
md.disposable = duration.subscribeSafe(self.Delta(self, resourceId, s, md))
try:
result = self.parent.parent.resultSelector(value, window)
except Exception as e:
self.onError(e)
return
else:
with self.parent.gate:
self.parent.observer.onNext(result)
for rightValue in self.parent.rightMap.values():
s.onNext(rightValue)
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)
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_next_right(value):
duration = None
current_id = right_id[0]
right_id[0] += 1
md = SingleAssignmentDisposable()
right_map[current_id] = value
group.add(md)
def expire():
if current_id in right_map:
del right_map[current_id]
if not len(right_map) and right_done[0]:
observer.on_completed()
return group.remove(md)
try:
duration = right_duration_mapper(value)
except Exception as exception:
observer.on_error(exception)
return
md.disposable = duration.pipe(take(1)).subscribe_(noop, observer.on_error, lambda: expire(), scheduler)
for val in left_map.values():
result = (val, value)
observer.on_next(result)
def on_next(inner_source: Observable):
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
inner_source = from_future(inner_source) if is_future(inner_source) else 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 = inner_source.subscribe_(on_next, on_error, on_completed, scheduler=scheduler)
def onNext(self, value):
key = None
try:
key = self.parent.keySelector(value)
except Exception as e:
self.onError(e)
return
fireNewMapEntry = False
writer = None
try:
if key == None:
with self.nullGate:
if self.null == None:
self.null = Subject()
fireNewMapEntry = True
writer = self.null
else:
if key in self.map:
writer = self.map[key]
else:
writer = Subject()
self.map[key] = writer
fireNewMapEntry = True
except Exception as e:
self.onError(e)
return
if fireNewMapEntry:
group = GroupObservable(key, writer, self.parent.refCountDisposable)
duration = None
durationGroup = GroupObservable(key, writer)
try:
duration = self.parent.durationSelector(durationGroup)
except Exception as e:
self.onError(e)
return
with self.observerGate:
self.observer.onNext(group)
md = SingleAssignmentDisposable()
self.parent.groupDisposable.add(md)
md.disposable = duration.subscribeSafe(self.Delta(self, key, writer, md))
element = None
try:
element = self.parent.elementSelector(value)
except Exception as e:
self.onError(e)
else:
with self.writerGate:
writer.onNext(element)
def run(self):
self.subscription = SerialDisposable()
d = SingleAssignmentDisposable()
self.subscription.disposable = d
d.disposable = self.parent.source.subscribeSafe(self)
return self.subscription
def subscribe_child(i, child):
subscription = SingleAssignmentDisposable()
def on_next(value):
with parent.lock:
values[i] = value
subscription.disposable = child.subscribe_(on_next, observer.on_error, scheduler=scheduler)
return subscription
def createTimer(self, wId):
m = SingleAssignmentDisposable()
self.timerDisposable.disposable = m
m.disposable = self.parent.scheduler.scheduleWithRelativeAndState(
wId,
self.parent.timeSpan,
self.tick
)
def run(self):
self.gate = RLock()
self.group = CompositeDisposable()
self.refCount = RefCountDisposable(self.group)
leftSubscription = SingleAssignmentDisposable()
self.group.add(leftSubscription)
self.leftID = 0
self.leftMap = {}
rightSubscription = SingleAssignmentDisposable()
self.group.add(rightSubscription)
self.rightID = 0
self.rightMap = {}
leftSubscription.disposable = self.parent.left.subscribeSafe(self.Left(self, leftSubscription))
rightSubscription.disposable = self.parent.right.subscribeSafe(self.Right(self, rightSubscription))
return self.refCount
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 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)
def subscribe(observer):
m = SingleAssignmentDisposable()
d = SerialDisposable()
d.disposable = m
def action():
d.disposable = SchedulerDisposable(scheduler, self.subscribeSafe(observer))
m.disposable = scheduler.schedule(action)
return d
def onNext(self, value):
try:
delay = self.parent.delaySelector(value)
except Exception as e:
with self.gate:
self.observer.onError(e)
self.dispose()
else:
d = SingleAssignmentDisposable()
self.delays.add(d)
d.disposable = delay.subscribeSafe(self.Delta(self, value, d))
def func(i):
source = sources[i]
sad = SingleAssignmentDisposable()
source = from_future(source) if is_future(source) else source
def on_next(x):
queues[i].append(x)
next(i)
sad.disposable = source.subscribe_(on_next, observer.on_error, lambda: done(i), scheduler)
subscriptions[i] = sad
def onNext(self, value):
observerId = 0
with self.gate:
self.latest += 1
observerId = self.latest
self.hasLatest = True
d = SingleAssignmentDisposable()
self.innerSubscription.disposable = d
d.disposable = value.subscribeSafe(self.IdObserver(self, observerId, d))
def onNext(self, value):
observerId = 0
with self.gate:
self.latest += 1
observerId = self.latest
self.hasLatest = True
d = SingleAssignmentDisposable()
self.innerSubscription.disposable = d
d.disposable = value.subscribeSafe(
self.IdObserver(self, observerId, d))
def func(i):
source = sources[i]
sad = SingleAssignmentDisposable()
source = from_future(source) if is_future(source) else source
def on_next(x):
queues[i].append(x)
next(i)
sad.disposable = source.subscribe_(on_next, observer.on_error,
lambda: done(i), scheduler)
subscriptions[i] = sad
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
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 = other.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 func(i):
subscriptions[i] = SingleAssignmentDisposable()
def on_next(x):
with parent.lock:
values[i] = x
_next(i)
def on_completed():
with parent.lock:
done(i)
subscriptions[i].disposable = sources[i].subscribe_(on_next, observer.on_error, on_completed, scheduler)
def func(i):
subscriptions[i] = SingleAssignmentDisposable()
def on_next(x):
with parent.lock:
values[i] = x
_next(i)
def on_completed():
with parent.lock:
done(i)
subscriptions[i].disposable = sources[i].subscribe_(on_next, observer.on_error, on_completed, scheduler)
def run(self):
ls = SingleAssignmentDisposable()
rs = SingleAssignmentDisposable()
d = CompositeDisposable(ls, rs)
gate = RLock()
lo = Amb.AmbObserver(self)
lo.disposable = d
lo.target = Amb.DecisionObserver(self, gate, Amb.LEFT, ls, rs, lo)
ro = Amb.AmbObserver(self)
ro.disposable = d
ro.target = Amb.DecisionObserver(self, gate, Amb.RIGHT, rs, ls, ro)
self.choice = Amb.NEITHER
ls.disposable = self.parent.left.subscribeSafe(lo)
rs.disposable = self.parent.right.subscribeSafe(ro)
return d
def run(self):
self.gate = RLock()
self.group = CompositeDisposable()
self.refCount = RefCountDisposable(self.group)
leftSubscription = SingleAssignmentDisposable()
self.group.add(leftSubscription)
self.leftDone = False
self.leftID = 0
self.leftMap = {}
rightSubscription = SingleAssignmentDisposable()
self.group.add(rightSubscription)
self.rightDone = False
self.rightID = 0
self.rightMap = {}
leftSubscription.disposable = self.parent.left.subscribeSafe(
self.Lambda(self, leftSubscription))
rightSubscription.disposable = self.parent.right.subscribeSafe(
self.Roh(self, rightSubscription))
return self.refCount
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
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 = other.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 on_next_left(value):
subject = Subject()
with left.lock:
_id = left_id[0]
left_id[0] += 1
left_map[_id] = subject
try:
result = (value, add_ref(subject, rcd))
except Exception as e:
log.error("*** Exception: %s" % e)
for left_value in left_map.values():
left_value.on_error(e)
observer.on_error(e)
return
observer.on_next(result)
for right_value in right_map.values():
subject.on_next(right_value)
md = SingleAssignmentDisposable()
group.add(md)
def expire():
if _id in left_map:
del left_map[_id]
subject.on_completed()
group.remove(md)
try:
duration = left_duration_mapper(value)
except Exception as e:
for left_value in left_map.values():
left_value.on_error(e)
observer.on_error(e)
return
def on_error(error):
for left_value in left_map.values():
left_value.on_error(error)
observer.on_error(error)
md.disposable = duration.pipe(ops.take(1)).subscribe_(
nothing, on_error, expire, scheduler)
def on_next(x: Any) -> None:
has_value[0] = True
value[0] = x
_id[0] += 1
current_id = _id[0]
d = SingleAssignmentDisposable()
cancelable.disposable = d
def action(scheduler, state=None) -> None:
if has_value[0] and _id[0] == current_id:
observer.on_next(value[0])
has_value[0] = False
d.disposable = _scheduler.schedule_relative(duetime, action)
def run(self):
self.subscription = SerialDisposable()
original = SingleAssignmentDisposable()
self.subscription.disposable = original
self.gate = RLock()
self.switched = False
timer = self.parent.scheduler.scheduleWithAbsolute(
self.parent.dueTime, self.timeout)
original.disposable = self.parent.source.subscribeSafe(self)
return CompositeDisposable(self.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 onNext(self, value):
currentId = 0
with self.gate:
self.hasValue = True
self.value = value
self.resourceId += 1
currentId = self.resourceId
d = SingleAssignmentDisposable()
self.propagatorDisposable.disposable = d
d.disposable = self.parent.scheduler.scheduleWithRelativeAndState(
currentId,
self.parent.dueTime,
self.propagate
)
def test_futuredisposable_disposeafterset():
d = SingleAssignmentDisposable()
disposed = [False]
def action():
disposed[0] = True
dd = Disposable(action)
d.disposable = dd
assert dd == d.disposable
assert not disposed[0]
d.dispose()
assert disposed[0]
d.dispose()
assert disposed[0]
def subscribe_child(i, child):
subscription = SingleAssignmentDisposable()
def on_next(value):
values[i] = value
if NO_VALUE not in values and parent_subscription.disposable is None:
disp = parent.subscribe(on_parent_next,
observer.on_error,
observer.on_completed,
scheduler=scheduler)
parent_subscription.disposable = disp
subscription.disposable = child.subscribe(
on_next, observer.on_error, scheduler=scheduler)
return subscription
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)
def create_window_on_completed():
try:
window_close = window_closing_mapper()
except Exception as exception:
observer.on_error(exception)
return
def on_completed():
window[0].on_completed()
window[0] = Subject()
observer.on_next(add_ref(window[0], r))
create_window_on_completed()
m1 = SingleAssignmentDisposable()
m.disposable = m1
m1.disposable = window_close.pipe(ops.take(1)).subscribe_(
noop, on_error, on_completed, scheduler)
def test_futuredisposable_disposebeforeset():
disposed = [False]
def dispose():
disposed[0] = True
d = SingleAssignmentDisposable()
dd = Disposable(dispose)
assert not disposed[0]
d.dispose()
assert not disposed[0]
d.disposable = dd
assert d.disposable == None
assert disposed[0]
d.dispose()
assert disposed[0]
def onError(self, exception):
if isinstance(exception, self.parent.exceptionType):
result = None
try:
result = self.parent.handler(exception)
except Exception as e:
self.observer.onError(e)
self.dispose()
return
d = SingleAssignmentDisposable()
self.subscription.disposable = d
d.disposable = result.subscribeSafe(
CatchException.WrapObserver(self))
else:
self.observer.onError(exception)
self.dispose()
def observe(self,
observer_info: MultiCastObserverInfo) -> rx.typing.Disposable:
disposable = SingleAssignmentDisposable()
# dispose source if MultiCast sink gets disposed and all inner Flowable sinks
# are disposed
ref_count_disposable = RefCountDisposable(disposable)
disposable.disposable = self.source.observe(
observer_info.copy(observer=CollectFlowablesMultiCastObserver(
next_observer=observer_info.observer,
ref_count_disposable=ref_count_disposable,
maintain_order=self.maintain_order,
stack=self.stack,
subscriber=self.subscriber,
), ))
return ref_count_disposable
def _subscribe(i: int):
subscriptions[i] = SingleAssignmentDisposable()
def on_next(value):
with parent.lock:
values[i] = value
has_value[i] = True
def on_completed():
with parent.lock:
done(i)
subscriptions[i].disposable = sources[i].subscribe_(
on_next,
observer.on_error,
on_completed,
scheduler
)
def on_next(inner_source):
inner_subscription = SingleAssignmentDisposable()
group.add(inner_subscription)
inner_source = from_future(inner_source) if is_future(
inner_source) else inner_source
@synchronized(source.lock)
def on_completed():
group.remove(inner_subscription)
if is_stopped[0] and len(group) == 1:
observer.on_completed()
on_next = synchronized(source.lock)(observer.on_next)
on_error = synchronized(source.lock)(observer.on_error)
subscription = inner_source.subscribe_(on_next, on_error,
on_completed, scheduler)
inner_subscription.disposable = subscription
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)
def run(self):
srcs = list(self.parent.sources)
N = len(srcs)
self.hasValue = [False] * N
self.hasValueAll = False
self.values = [None] * N
self.isDone = [False] * N
self.subscriptions = [None] * N
self.gate = RLock()
for i in range(N):
d = SingleAssignmentDisposable()
self.subscriptions[i] = d
o = self.O(self, i)
d.disposable = srcs[i].subscribeSafe(o)
return CompositeDisposable(self.subscriptions)
def subscribe(xs):
subscription = SingleAssignmentDisposable()
group.add(subscription)
@synchronized(source.lock)
def on_completed():
group.remove(subscription)
if queue:
s = queue.pop(0)
subscribe(s)
else:
active_count[0] -= 1
if is_stopped[0] and active_count[0] == 0:
observer.on_completed()
on_next = synchronized(source.lock)(observer.on_next)
on_error = synchronized(source.lock)(observer.on_error)
subscription.disposable = xs.subscribe_(
on_next, on_error, on_completed, scheduler)
def on_next(inner_source):
if not has_current[0]:
has_current[0] = True
inner_source = rx.from_future(inner_source) if is_future(
inner_source) else inner_source
inner_subscription = SingleAssignmentDisposable()
g.add(inner_subscription)
def on_completed_inner():
g.remove(inner_subscription)
has_current[0] = False
if is_stopped[0] and len(g) == 1:
observer.on_completed()
inner_subscription.disposable = inner_source.subscribe_(
observer.on_next, observer.on_error,
on_completed_inner, scheduler)
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)
def schedule_periodic(self, period, action, state=None):
d = SingleAssignmentDisposable()
failed = [False]
def periodic_action(periodic_state):
if failed[0]:
return None
try:
return action(periodic_state)
except Exception as ex:
failed[0] = True
if not self._handler(ex):
raise Exception(ex)
d.dispose()
return None
d.disposable = self._scheduler.schedule_periodic(
periodic_action, period, state)
return d
def observe(self, observer_info: MultiCastObserverInfo) -> rx.typing.Disposable:
group = CompositeDisposable()
lock = threading.RLock()
for inner_source in self.sources:
inner_subscription = SingleAssignmentDisposable()
group.add(inner_subscription)
disposable = inner_source.observe(observer_info.copy(
observer=MergeMultiCastObserver(
observer=observer_info.observer,
lock=lock,
inner_subscription=inner_subscription,
group=group
)
))
inner_subscription.disposable = disposable
return group
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 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 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)
