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gh-116195: Re-implement win32_getppid efficiently.#116194

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ghost wants to merge1 commit intopython:mainfromunknown repository

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gh-116195: Re-implement win32_getppid efficiently.#116194

ghost wants to merge1 commit intopython:mainfromunknown repository

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ghost commentedMar 1, 2024•
edited by bedevere-appbot
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Use the NtQueryInformationProcess system call to efficiently retrieve the parent process ID in a single step, rather than using the process snapshots API which retrieves large amounts of unnecessary information and is more prone to failure (since it makes heap allocations).

All APIs used are documented by Microsoft.

Issue:Improve the efficiency and robustness of win32_getppid #116195

Re-implement win32_getppid efficiently.

49474e1

Use the NtQueryInformationProcess system call to efficiently retrieve the parent process ID in a single step, rather than using the process snapshots API which retrieves large amounts of unnecessary information and is more prone to failure (since it makes heap allocations).

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