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jspi: migration phases 0-7 — build knob, scheduler shim, test successor suite

Browse source 
Toolchain: emsdk 6.0.6 (versions.sh; cache-hash keys on it). Build knob
PCBJAM_ASYNC_BACKEND=jspi|asyncify: build-kicad-target.sh links editors with
-sJSPI + -sJSPI_EXPORTS=@scripts/common/jspi-exports.txt + --pre-js
jspi-scheduler.js (no DYNCALLS, no post-link asyncify pipeline); wx build
stamps the backend and forces clean on flip or unknown provenance;
docker/build.sh passes the knob, seeds the emscripten ports cache from the
volume every launch, jspi postprocess = patch-env-shim only.

scripts/common/shims/jspi-scheduler.js: the JSPI successor scheduler —
token-wait registry, resume turnstile (one armed resume between engine
re-entries, SP swaps only at microtask boundaries), green-region spill
stacks (16-aligned tops), S1 embind mutator FIFO lane + parker wraps, S6
shutdown, libctx integration hooks (suspend/end/quarantine + g_current
arm/clear), SuspendError attributor, lost-wake + stuck-window watchdogs,
__wxWaitDump observability.

Embind: PARKER registrations get emscripten::async() under PCBJAM_JSPI
(wasm/bindings/pcbjam_async_policy.h). nanosleep yields route via the shim.

Tests: tests/asyncify -> tests/jspi successor suite (jspi-stack red/green
shadow-stack battery, jspi-coroutine MiniCoro harness, suspend-races
semantic scenarios + __wxWaitDump books coherence); projects jspi-firefox/
jspi-chrome (asyncify-webkit retired — no JSPI in WebKit); unconditional
Firefox JSPI pref; guard-beacons -> wait-beacons (+wxScheduler/libctxJspi
families); Makefile.wasm links test apps against JSPI with the shim as a
tracked link prerequisite.

Web: WasmTool setRo await + __wxWaitDump forensics, open-flow contained
promise, scheduler-shim.test.ts retargeted (8 green).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NDeBaKKhQztd8KiVtHuyXr
This commit is contained in:
Viktor Vaczi 2026-08-13 07:06:24 +02:00
commit 3f09a46ff5
48 changed files with 2640 additions and 546 deletions
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4
tests/package.json
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@ -4,10 +4,10 @@
"description": "Playwright tests for wxWidgets WASM and KiCad",
"scripts": {
"test": "npm run test:e2e",
"test:e2e": "npm run setup:kicad && playwright test --project=wx-chromium --project=kicad-firefox --project=kicad-chromium --project=asyncify-firefox --project=coroutine-firefox",
"test:e2e": "npm run setup:kicad && playwright test --project=wx-chromium --project=kicad-firefox --project=kicad-chromium --project=jspi-firefox --project=coroutine-firefox",
"test:kicad": "npm run setup:kicad && playwright test --project=kicad-firefox",
"test:kicad:headed": "npm run setup:kicad && playwright test --project=kicad-chrome --headed",
"test:asyncify:safari": "playwright test --project=asyncify-webkit",
"test:jspi:chrome": "playwright test --project=jspi-chrome",
"test:perf": "npm run setup:kicad && playwright test --project=perf --workers=1",
"test:web": "npm run setup:kicad && playwright test --config=playwright-web.config.ts --project=web-firefox",
"test:web:ci": "npm run setup:kicad && playwright test --config=playwright-web.config.ts --project=web-firefox --project=web-chromium --project=web-mobile",