Is looping in Future::poll safe?

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  • tokio

    A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

    It's still a possibility, and I remember a discussion somewhere in the Tokio community in which they wanted to solve potential blocking in this and similar combinators reliably by having "leaf" streams return Poll::Pending once in a while even when the stream is ready. See also this PR providing a cooperative solution.

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