Message 170656 - Python tracker

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In-reply-to
Author	vitaly
Recipients	Denis.Bilenko, hynek, ned.deily, neologix, ronaldoussoren, vitaly
Date	2012年09月18日.16:12:14
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1347984735.1.0.940354405617.issue15896@psf.upfronthosting.co.za>

Content
In the work-around, we need to watch out for what 'man 2 read' on Mac OS refers to as "normal file": == Upon successful completion, read(), readv(), and pread() return the number of bytes actually read and placed in the buffer. The system guarantees to read the number of bytes requested if the descriptor references a normal file that has that many bytes left before the end-of-file, but in no other case. == I am guessing that fstat() + S_ISREG() can be used to discern "normal files" from other types of file descriptors.

Content

In the work-around, we need to watch out for what 'man 2 read' on Mac OS refers to as "normal file":
==
Upon successful completion, read(), readv(), and pread() return the number of bytes actually read and placed in the buffer. *The system guarantees to read the number of bytes requested if the descriptor references a normal file that has that many bytes left before the end-of-file*, but in no other case.
==
I am guessing that fstat() + S_ISREG() can be used to discern "normal files" from other types of file descriptors.

History
Date	User	Action	Args
2012年09月18日 16:12:15	vitaly	set	recipients: + vitaly, ronaldoussoren, ned.deily, neologix, hynek, Denis.Bilenko
2012年09月18日 16:12:15	vitaly	set	messageid: <1347984735.1.0.940354405617.issue15896@psf.upfronthosting.co.za>
2012年09月18日 16:12:14	vitaly	link	issue15896 messages
2012年09月18日 16:12:14	vitaly	create

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