Chinesezjc 4a8c49f78c fix(code-runtime-python): restore SIGXCPU disposition before unblocking and floor the budgets ...

Addresses the review's two code warnings and one suggestion:
- die_if_cpu_exhausted now restores SIG_DFL BEFORE unblocking SIGXCPU: a program
  that installed a custom handler AND masked the signal would otherwise have
  that pending handler run at the unblock (in model code, re-masking or raising)
  and escape the re-raise; with SIG_DFL first the pending signal kills inside
  the kernel with no bytecode window. A trap+mask combined regression test pins
  it (the mask-only case was already covered).
- The constructor rejects budgets too small to honor: maxLogBytes must fit the
  truncation marker plus the serialized outer-array envelope (floor 64), and
  maxValueBytes must at least represent the smallest JSON completion (floor 4,
  matching the worker backend). The exact-limit test moves to the 64 floor and
  a rejection test pins the floors.
- The pthread_sigmask None-guard comment cites the real rationale (defensive
  against stripped CPython builds; win32 is refused at construction), not the
  unreachable Windows path.

2026-08-31 14:41:49 +08:00

..

bootstrap.py

fix(code-runtime-python): restore SIGXCPU disposition before unblocking and floor the budgets

2026-08-31 14:41:49 +08:00

protocol.py

fix(code-runtime-python): close coverage gap and tighten the wire mirror

2026-08-07 13:27:54 +08:00