Date: Wed, 01 Feb 2006 20:48:30 +0000 From: Pete French <petefrench@ticketswitch.com> To: ivoras@fer.hr, peterjeremy@optushome.com.au Cc: freebsd-stable@freebsd.org Subject: Re: Restartable system call behaviour Message-ID: <E1F4Oty-000JEi-9R@dilbert.firstcallgroup.co.uk> In-Reply-To: <43E10E44.1040502@fer.hr>
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> >>I have a piece of coode which does some networking, in which I see read > >>and write calls failing with 'Interrupted system call' from time to time. > > > > You will get EINTR if the interrupt occurs before any data is read > > or written. > > Will it also happen with recv() with MSG_WAITALL flag set? Actually I have narrowed this down now, and I wwas wrong in the original posting - I was getting the EINTR returned by connect. Now I am not sure if this is correct behaviour or not - if a signal has SA_RESTART set then it should restart, but connect returns EINTR and then continues to connect in the background. I had alwways belived that if system calls are restrtable then you will never see EINTR at all. Now I dont know if this is a problem with my understanding of how the system works, or an actual bug. have filed a pr anyway, just in case it *is* a bug. -pcf.
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