dimgigov
5ec755743d
- C runtime: ucontext-based coroutines (bux_async_spawn/yield/await/run) - Round-robin scheduler in bux_async_run() manages ready queue - spawn Func() without args → bux_async_spawn() creates coroutine - await → blocks/yields until coroutine completes - async func → emitted as regular C function, runs on dedicated stack - Interleaved execution: multiple coroutines yield cooperatively - Example: examples/async.bux demonstrates WorkA/WorkB interleaving - All 20 examples pass, selfhost build works
33 lines
730 B
Plaintext
33 lines
730 B
Plaintext
import Std::Io::PrintLine;
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extern func bux_async_yield();
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extern func bux_async_run();
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extern func bux_async_spawn(fn: *void) -> *void;
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extern func bux_async_await(handle: *void);
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async func WorkA() {
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PrintLine("WorkA: step 1");
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bux_async_yield();
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PrintLine("WorkA: step 2");
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bux_async_yield();
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PrintLine("WorkA: done");
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}
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async func WorkB() {
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PrintLine("WorkB: step 1");
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bux_async_yield();
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PrintLine("WorkB: step 2");
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bux_async_yield();
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PrintLine("WorkB: done");
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}
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func Main() -> int {
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PrintLine("Main: start");
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let h1: *void = spawn WorkA();
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let h2: *void = spawn WorkB();
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bux_async_await(h1);
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bux_async_await(h2);
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PrintLine("Main: all done");
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return 0;
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}
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