[exim-dev] [Bug 972] File Already Exists in Spool Directory

Góra strony
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Autor: Phil Pennock
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Dla: exim-dev
Stare tematy: [exim-dev] [Bug 972] New: File Already Exists in Spool Directory
Temat: [exim-dev] [Bug 972] File Already Exists in Spool Directory
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http://bugs.exim.org/show_bug.cgi?id=972




--- Comment #10 from Phil Pennock <pdp@???> 2010-09-07 02:37:25 ---
So Exim uses signals in a couple of places. Where it uses setitimer(), it
masks out all signals except SIGALRM (which should be safe, for a short period
of time) so that only the alarm will get through. nanosleep is not specified
to use any particular mechanism, so we can make rough guesses (let through
SIGALRM) I don't know enough about the portability of this assumption to be
entirely comfortable.

So I'd rather stick to the known-good known-portable code which has only ever
had issues with one buggy kernel, and then work around the buggy kernel, rather
than risk breakages on all the non-buggy platforms by making unwarranted
assumptions.

Per: http://www.gnu.org/software/hello/manual/gnulib/nanosleep.html
we should be fairly safe on current platforms, for our usage, with nanosleep,
so if someone else feels we should switch, I'll not object.


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