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ALL_COMPLETEDwaitwait_for as_completedsleepgathershield
ensure_futurerun_coroutine_threadsafe current_task all_tasks_register_task_unregister_task _enter_task _leave_task N) GenericAlias )
base_tasks)
coroutines)events)
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_is_coroutinec T | t j } t j | S )z!Return a currently executed task.)r get_running_loop_current_tasksgetloops A/BuggyBox/python/3.11.7/bootstrap/lib/python3.11/asyncio/tasks.pyr r # s& |&(( d # ## c t j d} t t }n # t $ r |dz
}|dk r Y nw xY w3 fd|D S )z'Return a set of all tasks for the loop.Nr Tr i c h h | ].}t j | u | ,|/S )r _get_loopdone).0tr# s r$ <setcomp>z all_tasks.<locals>.<setcomp>= sE > > >! ##t++AFFHH+
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FADyy y > > > >u > > > >s 0 A A c |B | j } || d S # t $ r t j dt d Y d S w xY wd S )Nz~Task.set_name() was added in Python 3.8, the method support will be mandatory for third-party task implementations since 3.13.
stacklevel)set_nameAttributeErrorwarningswarnDeprecationWarning)tasknamer7 s r$ _set_task_namer> A s }H
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|t j | _ n|| _ | j | j | j t) | d S )Nr" Fz a coroutine was expected, got zTask-r r@ )super__init___source_tracebackr iscoroutine_log_destroy_pending TypeError_task_name_counter_namestr_num_cancels_requested _must_cancel _fut_waiter_coro contextvars copy_context_context_loop call_soon _Task__stepr )selfcoror# r= r@ __class__s r$ rE z
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set_exceptionzTask.set_exception s JKKKr% )limitc , t j | | S )a Return the list of stack frames for this task's coroutine.
If the coroutine is not done, this returns the stack where it is
suspended. If the coroutine has completed successfully or was
cancelled, this returns an empty list. If the coroutine was
terminated by an exception, this returns the list of traceback
frames.
The frames are always ordered from oldest to newest.
The optional limit gives the maximum number of frames to
return; by default all available frames are returned. Its
meaning differs depending on whether a stack or a traceback is
returned: the newest frames of a stack are returned, but the
oldest frames of a traceback are returned. (This matches the
behavior of the traceback module.)
For reasons beyond our control, only one stack frame is
returned for a suspended coroutine.
)r _task_get_stack)rW rt s r$ get_stackzTask.get_stack s * )$666r% )rt filec . t j | || S )an Print the stack or traceback for this task's coroutine.
This produces output similar to that of the traceback module,
for the frames retrieved by get_stack(). The limit argument
is passed to get_stack(). The file argument is an I/O stream
to which the output is written; by default output is written
to sys.stderr.
)r _task_print_stack)rW rt rx s r$ print_stackzTask.print_stack s +D%>>>r% c d| _ | rdS | xj dz
c_ | j | j | rdS d| _ || _ dS )a Request that this task cancel itself.
This arranges for a CancelledError to be thrown into the
wrapped coroutine on the next cycle through the event loop.
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the request using try/except/finally.
Unlike Future.cancel, this does not guarantee that the
task will be cancelled: the exception might be caught and
acted upon, delaying cancellation of the task or preventing
cancellation completely. The task may also return a value or
raise a different exception.
Immediately after this method is called, Task.cancelled() will
not return True (unless the task was already cancelled). A
task will be marked as cancelled when the wrapped coroutine
terminates with a CancelledError exception (even if cancel()
was not called).
This also increases the task's count of cancellation requests.
Fr NmsgT)_log_tracebackr* rM rO cancelrN _cancel_message)rW r~ s r$ r z Task.cancel sx , $ 99;; 5 ##q(## ' &&3&//
t " tr% c | j S )zReturn the count of the task's cancellation requests.
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rM rd s r$
cancellingzTask.cancelling s
**r% c F | j dk r| xj dz c_ | j S )zDecrement the task's count of cancellation requests.
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r r r rd s r$ uncancelz
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+U U U U U Un r% r )r= r@ c t j }|| | }n| | | }t || |S )z]Schedule the execution of a coroutine object in a spawn task.
Return a Task object.
NrC )r r r r> )rX r= r@ r# r< s r$ r r x sY
" $ $D %% g 664 Kr% )timeout return_whenc K t j | st j | r$t dt | j | st d |t t t fvrt d| t | } t d | D rt d t j }t | ||| d{V S )a} Wait for the Futures or Tasks given by fs to complete.
The fs iterable must not be empty.
Coroutines will be wrapped in Tasks.
Returns two sets of Future: (done, pending).
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z expect a list of futures, not z Set of Tasks/Futures is empty.zInvalid return_when value: c 3 > K | ]}t j | V d S rb )r rG )r+ fs r$ <genexpr>zwait.<locals>.<genexpr> s-
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j |d}~ww xY w# | w xY w)a Wait for the single Future or coroutine to complete, with timeout.
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Returns result of the Future or coroutine. When a timeout occurs,
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cancellation, wrap it in shield().
If the wait is cancelled, the task is also cancelled.
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in which and as soon as they complete.
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for f in as_completed(fs):
result = await f # The 'await' may raise.
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z#expect an iterable of futures, not r )Queuec 2 h | ]}t | S )r" )r
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s !B6 6"Cc # : K | E d{V S )zHelper for asyncio.ensure_future().
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N) __await__) awaitables r$ r r s, !**,, , , , , , ,-r% c * e Zd ZdZ fdZddZ xZS )_GatheringFuturezHelper for gather().
This overrides cancel() to cancel all the children and act more
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cancelled.
c h t | || _ d| _ d S )Nr" F)rD rE _children_cancel_requested)rW childrenr# rY s r$ rE z_GatheringFuture.__init__ s3
d###!!& r% Nc | rdS d}| j D ]}| | rd}|rd| _ |S )NFr} T)r* r r r )rW r~ retchilds r$ r z_GatheringFuture.cancel s` 99;; 5^ E|||$$
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S )a Return a future aggregating results from the given coroutines/futures.
Coroutines will be wrapped in a future and scheduled in the event
loop. They will not necessarily be scheduled in the same order as
passed in.
All futures must share the same event loop. If all the tasks are
done successfully, the returned future's result is the list of
results (in the order of the original sequence, not necessarily
the order of results arrival). If *return_exceptions* is True,
exceptions in the tasks are treated the same as successful
results, and gathered in the result list; otherwise, the first
raised exception will be immediately propagated to the returned
future.
Cancellation: if the outer Future is cancelled, all children (that
have not completed yet) are also cancelled. If any child is
cancelled, this is treated as if it raised CancelledError --
the outer Future is *not* cancelled in this case. (This is to
prevent the cancellation of one child to cause other children to
be cancelled.)
If *return_exceptions* is False, cancelling gather() after it
has been marked done won't cancel any submitted awaitables.
For instance, gather can be marked done after propagating an
exception to the caller, therefore, calling ``gather.cancel()``
after catching an exception (raised by one of the awaitables) from
gather won't cancel any other awaitables.
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,1( QJE !JsO ! !. 1 1 1 1 S/C XD 1 1 1E Lr% c t | rS t j }| fdfd} | S )a Wait for a future, shielding it from cancellation.
The statement
task = asyncio.create_task(something())
res = await shield(task)
is exactly equivalent to the statement
res = await something()
*except* that if the coroutine containing it is cancelled, the
task running in something() is not cancelled. From the POV of
something(), the cancellation did not happen. But its caller is
still cancelled, so the yield-from expression still raises
CancelledError. Note: If something() is cancelled by other means
this will still cancel shield().
If you want to completely ignore cancellation (not recommended)
you can combine shield() with a try/except clause, as follows:
task = asyncio.create_task(something())
try:
res = await shield(task)
except CancelledError:
res = None
Save a reference to tasks passed to this function, to avoid
a task disappearing mid-execution. The event loop only keeps
weak references to tasks. A task that isn't referenced elsewhere
may get garbage collected at any time, even before it's done.
c r*| s| d S | r d S | }| | d S | d S rb )r rr r rs rp ro )innerr r s r$ _inner_done_callbackz$shield.<locals>._inner_done_callback{ s ?? ??$$
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0111 0111 Lr% c t j st d t j fd} | S )zsSubmit a coroutine object to a given event loop.
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z A coroutine object is requiredc t j t d S # t t f$ r t
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(F h''' Mr% c . t j | dS )z3Register a new task in asyncio as executed by loop.N)r/ r r< s r$ r r s N4r% c r t j | }|t d|d|d |t | < d S )NzCannot enter into task z while another task z is being executed.r r! r0 r# r< r s r$ r r sf !%d++L GT G G#/ G G G H H H N4r% c r t j | }||urt d|d|d t | = d S )Nz
Leaving task z! does not match the current task .r r s r$ r r si !%d++L4 A4 A A/; A A A B B Bt r% c . t j | dS )zUnregister a task.N)r/ discardr s r$ r r s t r% )r r r r r/ r rb )Cr __all__concurrent.futuresr rQ r r itertoolstypesr9 weakrefr r r r r r r r count__next__rJ r r r> _PyFuturer _PyTask_asyncio_CTask ImportErrorr r r r r r r r r r coroutiner r
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