guangli-dai afeda129b0 Add background-thread state and toggle unit tests ...

New tests cover:
  - background thread states after arena_reset
  - background thread stats
  - toggle background thread on and off during parallel stress
    allocs/dallocs
  - background thread fork behavior

Add background-thread fork unit test

test_fork_background_thread (in fork.c): with the background thread enabled,
fork and assert the child comes up with it disabled yet usable (re-enable +
alloc round-trips), while the parent keeps its threads.  Placed in fork.c to
reuse its wait_for_child_exit helper and fork/WIN32 handling instead of
duplicating them in a separate file.

2026-07-16 21:52:34 -07:00

5.8 KiB

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