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From: Jan Kiszka <jan.kiszka@domain.hid>
To: Wolfgang Grandegger <wg@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>
Subject: [Xenomai-core] iovec overwriting by CAN stack
Date: Fri, 30 Mar 2007 02:59:21 +0200	[thread overview]
Message-ID: <460C60E9.6010307@domain.hid> (raw)

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Hi Wolfgang,

it's late, so I may have misread somecode, but don't you "update" the
iovec descriptors a user passes on send/recvmsg on return (namely
iovec_len)? I received some complaints about this /wrt to in-kernel CAN
stack usage.

I always considered the same well-know behaviour of RTnet a bug, but now
I found your code is doing this systematically, also for user space
callers. Is this behaviour undefined or even required according POSIX or
whatever?

Jan


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             reply	other threads:[~2007-03-30  0:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-30  0:59 Jan Kiszka [this message]
2007-03-30  6:44 ` [Xenomai-core] Re: iovec overwriting by CAN stack Wolfgang Grandegger
2007-03-30  6:50   ` Jan Kiszka
2007-03-30 12:18     ` Sebastian Smolorz
2007-03-30 12:27       ` Jan Kiszka
2007-03-30 13:06         ` Sebastian Smolorz
2007-03-30 14:17           ` Jan Kiszka
2007-04-02  8:09             ` Sebastian Smolorz
2007-04-05 17:30               ` Jan Kiszka
2007-04-10  7:37                 ` [Xenomai-core] " Sebastian Smolorz
2007-04-10  9:43                   ` Jan Kiszka

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