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From: Laurent LEQUIEVRE <laurent.lequievre@gmail.com>
Message-ID: <576D4598.4080706@gmail.com>
Date: Fri, 24 Jun 2016 16:37:12 +0200
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Subject: Re: [Xenomai] socket XDDP recvfrom timeout ?
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To: xenomai@xenomai.org, Laurent LEQUIEVRE <laurent.lequievre@univ-bpclermont.fr>

forgot to specify : Xenomai 3.0.2

Le 24/06/2016 16:35, Laurent LEQUIEVRE a écrit :
> Hello,
>
> I try to use the socket XDDP with the posix skin to communicate from 
> RT thread to non RT thread.
>
> To get a non blocked 'recvfrom', I added the flag 'MSG_DONTWAIT', and 
> it's work fine.
>
> But how to setup a timeout for this function ?
>
> I tried to set the flag 'SO_RCVTIEMO' by using 2 methods :
>
> struct timeval tv;
> tv.tv_sec=nb seconds
> tv.tv_usec=nb micro seconds
> setsockopt(socket_id,SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); --> 
> doesn't work, blocked !
>
> timeout (in nano seonds)
> ioctl(socket_id, SO_RCVTIMEO, &timeout);  --> doesn't work, blocked !
>
>
> Thanks for your help,
>
> Laurent LEQUIEVRE
>
>
>