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Support spawning asynchronous tasks #212

Merged
merged 16 commits into from
Feb 26, 2017
Merged

Support spawning asynchronous tasks #212

merged 16 commits into from
Feb 26, 2017

Commits on Feb 26, 2017

  1. introduce panic_handler to allow control for random panics 

    For now, we abort in various anomalous scenarios. This is likely not the
right default.
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  2. abstract away the scope in which a future is invoked

    @nikomatsakis
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  3. add Registry::current() method (also current_num_threads()) 

    This fixes a latent bug in the splitting code for the parallel iterator,
which would have grabbed the wrong number of threads if we were working
inside a custom threadpool.
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  4. add the ability to increment the terminate counter explicitly 

    This will be useful when we permit spawning async jobs.
    @nikomatsakis
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  5. add spawn_async and ThreadPool::spawn_async

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  6. introduce inject_or_push helper for putting work into a registry

    @nikomatsakis
    nikomatsakis committed Feb 26, 2017
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  7. let the scope determine the registry in which a future lives

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  8. move future support out of ::scope and into ::future 

    It is no longer dependent on scope, and instead serves a cross-cutting
role.
    @nikomatsakis
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  9. remove outdated unsafe blocks from future and tweak docs, exports 

    The unsafe keyword was not needed, because the safety is implied
by the unsafe trait `FutureScope`.

The `future` module now re-exports the relevant parts of `futures` crate
for convenience in the rest of Rayon.
    @nikomatsakis
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  10. add some missing #[cfg(feature = unstable)] declarations

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  11. add spawn_future_async APIs

    @nikomatsakis
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  12. cleanup unsafe usage in spawn_async

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  13. add a simple test for async futures

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  14. fix errors/warnings when not using feature = "unstable"

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  15. add missing export

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  16. create some tests around panics, handling, and termination

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