Message 311094 - Python tracker

Message311094

Author	martin.panter
Recipients	John Jones, alex, benjamin.peterson, dhduvall, gennad, gregory.p.smith, martin.panter, neologix, pablogsal
Date	2018-01-29.11:23:39
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1517225019.12.0.467229070634.issue20104@psf.upfronthosting.co.za>
In-reply-to

Content
Your assumption about calling “file_actions_destroy” would be okay if the posix_spawn_file_actions_t object was a simple object or structure. But I imagine most implementations would allocate memory when you call one of the “add” methods. Especially “addopen”, which is supposed to copy the filename string somewhere. Looking at “uclibc” <https://repo.or.cz/uclibc-ng.git/blob/v1.0.28:/include/spawn.h#l263>, I see it calls “free”, because it allocates an array for all the file actions.

Content

Your assumption about calling “file_actions_destroy” would be okay if the posix_spawn_file_actions_t object was a simple object or structure. But I imagine most implementations would allocate memory when you call one of the “add” methods. Especially “addopen”, which is supposed to copy the filename string somewhere. Looking at “uclibc” <https://repo.or.cz/uclibc-ng.git/blob/v1.0.28:/include/spawn.h#l263>, I see it calls “free”, because it allocates an array for all the file actions.

History
Date	User	Action	Args
2018-01-29 11:23:39	martin.panter	set	recipients: + martin.panter, gregory.p.smith, benjamin.peterson, alex, dhduvall, neologix, gennad, John Jones, pablogsal
2018-01-29 11:23:39	martin.panter	set	messageid: <1517225019.12.0.467229070634.issue20104@psf.upfronthosting.co.za>
2018-01-29 11:23:39	martin.panter	link	issue20104 messages
2018-01-29 11:23:39	martin.panter	create