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Re: datagram vs stream sockets
der Mouse <mouse%Rodents-Montreal.ORG@localhost> wrote:
> Which protocol family? PF_LOCAL? Someone mentioned UDP, but PF_INET
> strikes me as unlikely for this application.
Yes, it uses PF_LOCAL.
> You're smart enough that I find it notable you apparently don't even
> consider having the filesystem treat a stream socket as the octet
> stream it really is, not necessarily reflecting record boundaries on
> write to record boundaries on read. Is there some reason this is out
> of the question? It really strikes me as the Right Thing.
That require intrusive patching of libfuse (and FUSE filesystems that
directly open /dev/fuse), something that I would like to avoid for the
sake of maintenability.
What I do not grasp yet is how it works without bugs on Linux: character
devices are not datagram sockets. Perhaps the kernel just checks that a
frame is consumed before sending a new one? Unfortunately I am unaware
of such a posibility with stream sockets.
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