When waiting for subprocesses in the process-wrapper, handle zombies.

Fix the new "wait for subprocesses" feature in the process-wrapper, which
is still behind the -W flag, to discard any zombies collected by the use
of the child subreaper feature if they happen to appear before the child
we care about finishes.  This prevents some tools from getting stuck.

Partially addresses https://github.com/bazelbuild/bazel/issues/10245 as the
feature is still disabled by default.

RELNOTES: None.
PiperOrigin-RevId: 312536864
3 files changed
tree: aa75a2fa39f376001091cad80a4f278b0f2e6fae
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEOWNERS
  15. combine_distfiles.py
  16. combine_distfiles_to_tar.sh
  17. compile.sh
  18. CONTRIBUTING.md
  19. CONTRIBUTORS
  20. distdir.bzl
  21. ISSUE_TEMPLATE.md
  22. LICENSE
  23. README.md
  24. WORKSPACE
README.md

Bazel

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