12 lines
849 B
Markdown
12 lines
849 B
Markdown
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# embassy-executor
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An async/await executor designed for embedded usage.
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- No `alloc`, no heap needed. Task futures are statically allocated.
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- No "fixed capacity" data structures, executor works with 1 or 1000 tasks without needing config/tuning.
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- Integrated timer queue: sleeping is easy, just do `Timer::after(Duration::from_secs(1)).await;`.
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- No busy-loop polling: CPU sleeps when there's no work to do, using interrupts or `WFE/SEV`.
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- Efficient polling: a wake will only poll the woken task, not all of them.
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- Fair: a task can't monopolize CPU time even if it's constantly being woken. All other tasks get a chance to run before a given task gets polled for the second time.
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- Creating multiple executor instances is supported, to run tasks with multiple priority levels. This allows higher-priority tasks to preempt lower-priority tasks.
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