Future set_result

18 Dec 2016 The state of the Future changes to done when set_result() is called, and the Future instance retains the result given to the method for retrieval 

Future Object¶ class asyncio.Future (*, loop=None) ¶ A Future represents an eventual result of an asynchronous operation. Not thread-safe. Future is an awaitable object. Coroutines can await on Future objects until they either have a result or an exception set, or until they are cancelled. A Future represents the result of work that has not been completed yet. The event loop can watch for a Future object’s state to indicate that it is done, allowing one part of an application to wait for another part to finish some work. Waiting for a Future ¶ A Future represents the result of an asynchronous computation. Methods are provided to check if the computation is complete, to wait for its completion, and to retrieve the result of the computation. The result can only be retrieved using method get when the computation has completed, blocking if necessary until it is ready. Cancellation is performed by the cancel method. Simply put, the Future class represents a future result of an asynchronous computation – a result that will eventually appear in the Future after the processing is complete. Let's see how to write methods that create and return a Future instance.

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SET 2020 Result will be announced by Symbiosis International University in the second week of May. Get your SET result 2020 in easy steps at Shiksha.com and also check the SET scorecard, rank list and top colleges in India. Future def getvalue (change): # make the new value available future. set_result (change. new) widget. unobserve (getvalue, value) widget. observe (getvalue, value) return future And we finally get to our function where we will wait for widget changes. Chhattisgarh Professional Examination Board (CGPEB) will be releasing the CG Vyapam SET Result 2020 based on the performance of the candidates. As the higher authority commenced the exam on 8th September 2019, candidates can check their CG SET Result 2020 from the March 2020 (Tentatively). Once the Cgvyapam SET Result 2020 is updated get the selected candidates according to the name of the candidate and roll number. Producing Results Asynchronously¶. A Future represents the result of work that has not been completed yet. The event loop can watch for a Future object’s state to indicate that it is done, allowing one part of an application to wait for another part to finish some work. GSET Result 2019 -2020: The result for the Gujarat SET examination is released by the Maharaja Sayajirao University of Baroda, Vadodara.Candidates can check the result of Assistant Professor on the official website i.e. www.gujaratset.ac.in. To check the result candidates have to enter Order Number and SBIePay Reference ID at the result login page. CG SET Result 2020 vyapam.cgstate.gov.in Download E-Certificate – Check Cut Off Marks: The Chhattisgarh Vyapam SET Exam Result 2020 & Official Cut Off Marks will be issued by Chhattisgarh Professional Examination Board which is going to be conducted on 8 September in this year. Recently the official authority notified model answer keys on CG vyapam … The creator of the asynchronous operation can then use a variety of methods to query, wait for, or extract a value from the std::future. These methods may block if the asynchronous operation has not yet provided a value.

Future.set_result is not safe to use with loop.call_soon() here is test for that issue: @mock.patch('asyncio.base_events.logger')

Future def getvalue (change): # make the new value available future. set_result (change. new) widget. unobserve (getvalue, value) widget. observe (getvalue, value) return future And we finally get to our function where we will wait for widget changes. Chhattisgarh Professional Examination Board (CGPEB) will be releasing the CG Vyapam SET Result 2020 based on the performance of the candidates. As the higher authority commenced the exam on 8th September 2019, candidates can check their CG SET Result 2020 from the March 2020 (Tentatively). Once the Cgvyapam SET Result 2020 is updated get the selected candidates according to the name of the candidate and roll number. Producing Results Asynchronously¶. A Future represents the result of work that has not been completed yet. The event loop can watch for a Future object’s state to indicate that it is done, allowing one part of an application to wait for another part to finish some work. GSET Result 2019 -2020: The result for the Gujarat SET examination is released by the Maharaja Sayajirao University of Baroda, Vadodara.Candidates can check the result of Assistant Professor on the official website i.e. www.gujaratset.ac.in. To check the result candidates have to enter Order Number and SBIePay Reference ID at the result login page. CG SET Result 2020 vyapam.cgstate.gov.in Download E-Certificate – Check Cut Off Marks: The Chhattisgarh Vyapam SET Exam Result 2020 & Official Cut Off Marks will be issued by Chhattisgarh Professional Examination Board which is going to be conducted on 8 September in this year. Recently the official authority notified model answer keys on CG vyapam … The creator of the asynchronous operation can then use a variety of methods to query, wait for, or extract a value from the std::future. These methods may block if the asynchronous operation has not yet provided a value.

A Future is a special low-level awaitable object that represents an eventual result of an asynchronous operation. When a Future object is awaited it means that the coroutine will wait until the Future is resolved in some other place. Future objects in asyncio are needed to allow callback-based code to be used with async/await.

Simply put, the Future class represents a future result of an asynchronous computation – a result that will eventually appear in the Future after the processing is complete. Let's see how to write methods that create and return a Future instance. tornado.concurrent.future_add_done_callback (future: Union[futures.Future[_T], Future[_T]], callback: Callable[[], None]) → None [source] ¶ Arrange to call callback when future is complete. callback is invoked with one argument, the future. If future is already done, callback is invoked immediately. Future.set_result and Future.set_exception now raise InvalidStateError if the futures are not pending or running. This mirrors the behavior of asyncio.Future, and prevents AssertionErrors in asyncio.wrap_future when set_result is called multiple times. Future.set_result is not safe to use with loop.call_soon() here is test for that issue: @mock.patch('asyncio.base_events.logger')

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After reading the documentation a bit more thoroughly it seems that the future's value should be set in a callback scheduled with the event loop: def wrap_opencl_event(event): loop = asyncio.get_event_loop() f = loop.create_future() event.set_callback(pyopencl.command_execution_status.COMPLETE, lambda status: loop.call_soon_threadsafe(f.set_result, None)) return f Created on 2014-06-30 14:05 by vstinner, last changed 2014-07-05 13:32 by vstinner.This issue is now closed. Future.set_result is not safe to use with loop.call_soon() here is test for that issue: @mock.patch('asyncio.base_events.logger') Future Object¶ class asyncio.Future (*, loop=None) ¶ A Future represents an eventual result of an asynchronous operation. Not thread-safe. Future is an awaitable object. Coroutines can await on Future objects until they either have a result or an exception set, or until they are cancelled. A Future represents the result of work that has not been completed yet. The event loop can watch for a Future object’s state to indicate that it is done, allowing one part of an application to wait for another part to finish some work. Waiting for a Future ¶

GSET Result 2019 -2020: The result for the Gujarat SET examination is released by the Maharaja Sayajirao University of Baroda, Vadodara.Candidates can check the result of Assistant Professor on the official website i.e. www.gujaratset.ac.in. To check the result candidates have to enter Order Number and SBIePay Reference ID at the result login page. CG SET Result 2020 vyapam.cgstate.gov.in Download E-Certificate – Check Cut Off Marks: The Chhattisgarh Vyapam SET Exam Result 2020 & Official Cut Off Marks will be issued by Chhattisgarh Professional Examination Board which is going to be conducted on 8 September in this year. Recently the official authority notified model answer keys on CG vyapam … The creator of the asynchronous operation can then use a variety of methods to query, wait for, or extract a value from the std::future. These methods may block if the asynchronous operation has not yet provided a value.