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Created on 2001年04月15日 17:35 by dougbo, last changed 2022年04月10日 16:03 by admin. This issue is now closed.
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| msg4271 - (view) | Author: douglas orr (dougbo) | Date: 2001年04月15日 17:35 | |
In pyexpat.c, the macro call for the handler dispatch (my##NAME##Handler) for CharacterHandler allocates an object implicitly by calling one of the conversion-to- unicode routines. If there is a problem in the PyBuildValue, resulting in args == NULL, that object will be leaked. Low priority, but the macros probably need some reworking to handle this. |
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| msg4272 - (view) | Author: Martin v. Löwis (loewis) * (Python committer) | Date: 2001年06月09日 11:48 | |
Logged In: YES user_id=21627 That seems to be a bug in Py_BuildValue: It should decref its N arguments if it can't create a tuple. |
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| msg4273 - (view) | Author: Guido van Rossum (gvanrossum) * (Python committer) | Date: 2002年03月28日 22:34 | |
Logged In: YES user_id=6380 Hm, the 'N' format code looks really scary. Can't it end up DECREF'ing an object too many times if something fails? |
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| msg4274 - (view) | Author: Martin v. Löwis (loewis) * (Python committer) | Date: 2002年03月28日 23:20 | |
Logged In: YES user_id=21627 No, currently, it can only leak: the argument being passed will have an extra ref count, which supposedly will be consumed by the tuple. If something fails, some of the N arguments will have been stored in the tuple-under-construction, and will be released when the tuple is released. 'N' arguments not yet consumed will leak. Processing should continue in case of an error, and DECREF all N arguments. |
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| msg4275 - (view) | Author: Martin v. Löwis (loewis) * (Python committer) | Date: 2006年04月12日 08:01 | |
Logged In: YES user_id=21627 I don't think I will do anything about this anytime soon, so unassigning myself. |
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| msg4276 - (view) | Author: Georg Brandl (georg.brandl) * (Python committer) | Date: 2006年04月12日 15:00 | |
Logged In: YES user_id=849994 This was fixed in response to bug [ 984722 ] Py_BuildValue loses reference counts on error, in rev. 36480. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022年04月10日 16:03:58 | admin | set | github: 34342 |
| 2001年04月15日 17:35:59 | dougbo | create | |