Jan Kiszka wrote:
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.
It's done here:
http://www.rts.uni-hannover.de/xenomai/lxr/source/ksrc/drivers/can/rtcan_raw.c?v=SVN-trunk#881
http://www.rts.uni-hannover.de/xenomai/lxr/source/ksrc/drivers/can/rtcan_raw.c?v=SVN-trunk#734
I may have missed something. What are the real complaints? Is there a
test program?
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?
I don't know, it's Sebastian's Kode.
Wolfgang.
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