Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
- Subject: Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
- From: Terry Lambert <email@hidden>
- Date: Wed, 11 Jul 2007 21:31:58 -0700
On Jul 11, 2007, at 4:00 PM, Mike Frysinger wrote:
On 7/10/07, Mike Frysinger <email@hidden> wrote:
On 7/9/07, Terry Lambert <email@hidden> wrote:
> Maybe you could get them to add it as a test case for the test
suite,
> if they (specifically, The Austin Group, actually) agreed with your
> interpretation of the standard.
so the answer to my query on the Austin Group mailing list is that
the
way ive interpreted the standard is the correct interpretation ...
POSIX conforming systems must:
- update st_mtime when opened with O_TRUNC regardless of the size of
the file before hand
- make sure st_ctime/st_mtime are properly available at the next
relevant point in time (like when calling stat() or fstat())
i'll look into getting a test added to the POSIX testsuite
and i've been informed that a test already exists that should match
the behavior i'm describing: POSIX.os/files/open 19
i'm testing 10.4.x and not 10.5 (which is the version that was
certified), so perhaps 10.5 has already been fixed ?
Sorry, can't make forward looking statements; you'd need to talk to
your DTS representative.
-- Terry
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