Conformance

Every adapter runs the same 22 examples from the api and must print identical output. Results are produced by CI from the current main of every repository, daily and on every push.

Summary

All runs used the api at commit 13cdbd0.

Scope probes

Three standalone scripts per adapter show how far per-scope state (including superglobals) follows the code. api proves that code driven through the fiber-interop api keeps its scope; loop proves the same for code using the loop's own primitives; raw fiber proves that a plain Fiber keeps the scope of its creator.

A userland polyfill sees only the switches that pass through a hook it controls: everything under Revolt and AMPHP, callbacks but not await() under ReactPHP, nothing Swoole performs itself. Covering every switch needs the runtime: the engine for fibers (the case made in the the Scope RFC (draft)), and for Swoole the two switch hooks its core already has but does not expose to PHP. The ext-scope columns run the same probes with the native extension loaded. The extension provides the identity; per-scope superglobals are the RFC's secondary vote and are not in the extension yet, so api and loop fail there today and raw fiber passes. That is the measurement, not a defect of the extension.

Exceptions

• ReactPHP: stress testForeignFiberChildIsNeverOrphaned - seed=88546215 (FIBER_INTEROP_STRESS_SEED=88546215, iteration 0): LogicException: fiber-interop/react: cannot wait in place from a fiber nobody owns while the React loop is running; create the fiber wi
• AMPHP: scope probe api (ext-scope) - a after sleep 0 saw {"req":"b"}
• AMPHP: scope probe loop (ext-scope) - a after delay 0 saw {"req":"b"}
• OpenSwoole (swoole adapter): scope probe api (ext-scope) - after run() $_GET is {"req":"b"}
• OpenSwoole (swoole adapter): scope probe loop (polyfill) - a after native sleep 0 saw []
• OpenSwoole (swoole adapter): scope probe loop (ext-scope) - a after native sleep 0 saw {"req":"b"}
• phasync: scope probe api (ext-scope) - a after sleep 0 saw {"req":"b"}
• phasync: scope probe loop (ext-scope) - a after sleep 0 saw {"req":"b"}
• ReactPHP: scope probe api (ext-scope) - after run() $_GET is {"req":"b"}, expected root []
• ReactPHP: scope probe loop (polyfill) - a after sleep 1 saw null
• ReactPHP: scope probe loop (ext-scope) - a after sleep 1 saw null
• Revolt: scope probe api (ext-scope) - scope a after sleep 0 saw {"v":"b"}
• Revolt: scope probe loop (ext-scope) - scope a step 0 saw {"v":"b"}
• Swoole: scope probe api (ext-scope) - after run() $_GET is {"req":"b"}
• Swoole: scope probe loop (polyfill) - a after native sleep 0 saw []
• Swoole: scope probe loop (ext-scope) - a after native sleep 0 saw {"req":"b"}

Full matrix

See the specification for what the conformance set does and does not prove.