David S. Miller wrote:
From: "H. Peter Anvin" <hpa@zytor.com>
Date: 5 Mar 2003 13:24:58 -0800
Question... I have heard conflicting info if (AF_UNIX, SOCK_DGRAM)
sockets will drop packets or not. I would appreciate a conclusive
answer for the Linux kernel specifically. Alternatively, is (AF_UNIX,
SOCK_SEQPACKET) implemented in Linux?
If sendmsg returns no errors, we reliably send the data and
do not drop it.
Cool. I needed an IPC which preserve record boundaries, and it just
seems pointless to encapsulate the packets into a stream just to have
them unencapsulated at the end -- especially since it means the read
needs multiple system calls.
We don't have AF_UNIX/SEQPACKET, but we do have AF_UNIX/STREAM.
Right, of course.
Thanks,
-hpa
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