|Subject:||Re: [Qemu-devel] Missing system calls retries in case of EINTR|
|Date:||Wed, 11 Jul 2007 10:57:10 -0700|
Talking about sigaction(SA_RESTART) vs looping around -EINTR everywhere:
On Tuesday 10 July 2007 8:57:34 pm Yigael Fleishman wrote:
> Thanks, that should also work.
> Seems do_sigaction() in linux-user/signal.c has some code which does that
> (though obviously not for the signal that I'm receiving).
> Any idea why SA_RESTART calls are not invoked by default to restart
> syscalls for all signals?
Fallout from old 1980's-era Unixes that didn't implement SA_RESTART,
basically. Standards like SUSv3 say to humor them, because they paid for the
"One of my most productive days was throwing away 1000 lines of code."
- Ken Thompson.
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