Changelog

nodejs/node · · 23 commits

FFI integers, HTTP perf, and ALS cleanup

A busy day: FFI now accepts safe numbers for 64-bit args, HTTP responses got faster, and AsyncLocalStorage’s legacy path was removed.

panva mcollina trivikr RafaelGSS HoonDongKang inoway46 Kjubikstronk aduh95 mertcanaltin

FFI now accepts safe integer numbers for 64-bit args (HoonDongKang617e082)

64-bit int64/uint64 arguments can now be passed as safe JavaScript numbers as well as bigints, with strict range checks for invalid, fractional, or out-of-range values. That removes friction for common inputs like buffer lengths while keeping 64-bit return values as bigint.

HTTP responses avoid dictionary-mode header/object overhead (mcollinab933d20)

OutgoingMessage now uses a fast-mode null-prototype object for stored headers, and pre-seeds the event listener table with common keys to keep _events out of dictionary mode. This should reduce per-response allocation and speed up header/event access on a hot path.

AsyncLocalStorage legacy implementation was removed (mcollina984aa0c)

Node now always uses AsyncContextFrame for AsyncLocalStorage, and the --no-async-context-frame flag was deleted from docs, config, and option handling. This simplifies the implementation and removes the old async_hooks-backed fallback entirely.

Synchronous random fill was inlined for performance (mertcanaltin52b68e0)

crypto.randomFillSync() now calls the native binding directly instead of going through a RandomBytesJob, shaving overhead from synchronous random byte generation. The binding and tests were updated to cover sync-IO tracing for the fast path.

FFI permission wrappers were aligned with handle methods (trivikr2bcc5dd)

ffi.dlclose() and ffi.dlsym() now defer directly to the handle methods instead of re-checking permissions, matching the documented behavior and existing handle.close()/handle.getSymbol() semantics. This fixes a mismatch after permissions are dropped.

Process-timeout reporting was corrected for exit paths (trivikre21f812)

The watchdog now distinguishes a process that is still exiting from one that simply failed to respond, improving --process-timeout diagnostics for process.exit(), uncaught exceptions, and unhandled rejections. Related tests and fixtures were added to cover blocked workers during shutdown.

WPT rejection handling was made consistent in workers (panva0ded159)

Node’s WPT worker harness now honors allow_uncaught_exception and related settings for unhandled promise rejections across both worker backends. This removes a flaky expectation and better matches testharness behavior.

Other misc changes

  • Benchmarked HTTP setHeader framing case added (mcollina40933d5)
  • tools/test.py now waits on child processes instead of polling; SIGINT shutdown handling improved (mcollina9067cc4)
  • tools/nix CI/benchmark build config shared; lint cache added (panvac6d52f5, aduh95253ebd2)
  • ESLint/tooling dependency bumps and lockfile refreshes (7ba8a73, 32caf9c, 001d644)
  • Misc test maintenance: permission fixture dedupe, WPT status tweaks, Blob endian scoping, ZIP cleanup, flaky SmartOS marker, inspect indentation fix, lint rule tweak (RafaelGSSc60762c, panva2152942, panva3f2450f, panva53eeed2, panva6ecfd65, Kjubikstronk1ee5d29, inoway46a72712b, panvac1e6d0c, panva993d004)