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Merged
lann merged 2 commits into from
Aug 11, 2026
Merged

endpoint: event-driven wakeups replace the bounded-polling pump #44

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endpoint: event-driven wakeups replace the bounded-polling pump
lann Aug 11, 2026
d9f9d31
Merge remote-tracking branch 'origin/main' into event-driven-pump
lann Aug 11, 2026
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9 changes: 6 additions & 3 deletions README.md
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Expand Up @@ -232,9 +232,12 @@ ways over UDP against iroh v1.0.3, and against n0's production relay
infrastructure over wss. `endpoint-demo/` is the first consumer,
composed via `wac plug` and driven by
`host-wasmtime/src/bin/endpoint-demo.rs`. Internally: one detached pump
task per bound endpoint owns all I/O, and resource methods observe its
consequences by bounded polling on the clock import (cross-task wakeups
have no channel that works on every host today; see the issues). The
task per bound endpoint owns all I/O, and wake-ups are event-driven in
both directions — resource methods kick the pump to flush their
mutations and park on wakers the pump fires (cross-task wakeups ride
wit-bindgen's `inter-task-wakeup` channel, delivered by both hosts;
the bench asserts the endpoint handshake stays within a fixed margin
of the single-task spike's). The
JS host for this surface is `host-deltic/`: it drives the endpoint
component runtime-linked under [deltic](https://github.com/lann/deltic)
on stock Deno (no transpile step, no engine flag) — the jco host this
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2 changes: 1 addition & 1 deletion endpoint/Cargo.toml
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Expand Up @@ -16,7 +16,7 @@ rustls = { version = "=0.23.43", default-features = false, features = ["std", "c
getrandom = "0.4"
bytes = "1"
hex = "0.4"
wit-bindgen = { version = "0.59", features = ["async", "async-spawn"] }
wit-bindgen = { version = "0.59", features = ["async", "async-spawn", "inter-task-wakeup"] }
futures = { version = "0.3", default-features = false, features = ["async-await", "std"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"
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