[WIP] Fix hanging issue in test process group null safety#49

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copilot/fix-running-test-process-group-null-safety

Commits on Feb 20, 2026

Improve code quality: NULL safety, resource cleanup, and behavioral consistency

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HiGarfield
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Improve process iterator safety and efficiency across all platforms

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HiGarfield
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Guard kvm_close() against NULL kd in FreeBSD close_process_iterator()

Copilot
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HiGarfield
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Improve code quality: remove EPSILON guard, simplify process_dup, add edge-case tests

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HiGarfield
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Fix getppid_of returning wrong value for PID 0 on FreeBSD

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HiGarfield
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Initial plan
Copilot
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Expand unit test coverage to near white-box full coverage

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HiGarfield
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Merge pull request #47 from HiGarfield/copilot/add-unit-tests-for-cpulimit
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Initial plan
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Fix test_cli_pid_boundaries hang on FreeBSD: use _exit() in print_usage_and_exit

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HiGarfield
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Merge pull request #48 from HiGarfield/copilot/fix-cpulimit-test-hang
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Initial plan
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