Issue 121614 - SAL Unix file handling : pread/pwrite vs lseek
Summary: SAL Unix file handling : pread/pwrite vs lseek
Alias: None
Product: General
Classification: Code
Component: code (show other issues)
Version: 4.0.0-dev
Hardware: All Mac OS X, all
: P3 Trivial (vote)
Target Milestone: 4.0.0
Assignee: AOO issues mailing list
QA Contact:
Depends on:
Reported: 2013-01-13 15:50 UTC by Pedro Giffuni
Modified: 2013-07-12 09:19 UTC (History)
1 user (show)

See Also:
Latest Confirmation in: ---
Developer Difficulty: Easy

Use pread for FreeBSD/MacOSX too (1.77 KB, patch)
2013-01-13 15:50 UTC, Pedro Giffuni
no flags Details | Diff

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Description Pedro Giffuni 2013-01-13 15:50:44 UTC
Created attachment 80142 [details]
Use pread for FreeBSD/MacOSX too

We are currently using pread/pwrite in sal/osl/unx/file.cxx
but only for the linux/Solaris case. According to FreeBSD's man page, "The pread(2) function appeared in AT&T System V Release 4 UNIX." and it is available in FreeBSD and MacOSX.

The code should probably be cleaned to use it everywhere though.
Comment 1 Pedro Giffuni 2013-01-14 03:42:13 UTC
The issue was found originally by Riccardo Magliocchetti and reported on a LibreOffice mailinglist.

My patch is completely different because my main interest is FreeBSD, but a cleaner workaround is very easy and left as an exercise for the reader.
Comment 2 SVN Robot 2013-01-14 21:04:19 UTC
"pfg" committed SVN revision 1433129 into trunk:
i121614 - SAL Unix file handling: used pread/pwrite on FreeBSD
Comment 3 Pedro Giffuni 2013-02-01 21:36:42 UTC
I didn't clean out the old code but at least I added the important cases.
Comment 4 2013-07-12 09:19:27 UTC
Fixed for FreeBSD and MacOSX in AOO 4.0.0