Re: coroutine condition_variable

Richard Hodges via Boost-users <[email protected]> Wed, 6 Dec 2023 15:45:51 +0100
Newsgroups gmane.comp.lib.boost.user
Message-ID <CALvx3hYyOdH=rbxK3Dw3OjLc0UNFebE6DV1M5jcy-_mLNPwdww@mail.gmail.com>
>
>
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> One of the things that keeps cropping up in the ability to notify another
> function that something has finished. In the past, I would use
> condition_variable and wait on that.
>
> There are a couple of ways I have used to do this.
Have a look at Klemens' experimental library
https://github.com/klemens-morgenstern/sam
It contains an async condition variable fully compatible with asio

The other way is to use an asio steady_timer. You would cancel the timer in
order to signal the condition. The waiter would see this as an
*operation_aborted* error, which would indicate, "you have been signalled".
You can set the timer to expires_at(std::chrono::steady_clock::max()) to
indicate that the wait should be indefinite.

R

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