Plug leak of "match_args" in StructMeta.#684
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jcrist merged 1 commit intojcrist:mainfrom May 10, 2024
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"match_args" is set in StructMetaInfo and eventually StructMeta via - ``` info->match_args = PyTuple_GetSlice(info->fields, 0, nfields - nkwonly); ``` This is incref'd before copying to StructMeta, and decref'd when cleaning up StructMetaInfo. There's no corresponding decref for StructMeta itself. This causes a leak that valgrind readily detects: ``` env PYTHONMALLOC=malloc valgrind python3 -c 'import msgspec' ... ==576283== LEAK SUMMARY: ==576283== definitely lost: 1,608 bytes in 26 blocks ``` With the fix in place, we get: ``` ==576086== LEAK SUMMARY: ==576086== definitely lost: 0 bytes in 0 blocks ```
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Thank you for the fast response and merge! |
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"match_args" is set in StructMetaInfo and eventually StructMeta via -
This is incref'd before copying to StructMeta, and decref'd when cleaning up StructMetaInfo. There's no corresponding decref for StructMeta itself. This causes a leak that valgrind readily detects:
With the fix in place, we get: