On Sun, Jul 14, 2019 at 12:30:16PM -0700, Russ Allbery wrote: > Vincent Bernat <ber...@debian.org> writes: > > > inetd uses stdin/stdout to communicate with the daemon and have to > > launch one instance for each client connecting. systemd.socket pass a > > regular listening socket on first connection to the daemon and the > > daemon can then serve multiple clients. > > I believe the wait option for at least xinetd behaves in roughly the same > way, although it's normally only used for UDP services. > > There seems to be a clear infrastructure gap for the non-systemd world > here that's crying out for some inetd-style program that implements the > equivalent of systemd socket activation and socket passing using the same > protocol, so that upstreams can not care whether the software is started > by systemd or by that inetd, and provides an easy-to-configure way for > Debian packages to indicate this should be used if systemd isn't in play. > It doesn't seem like it would be too difficult to implement such a thing, > but I don't think it already exists.
https://bugs.debian.org/922353 https://gitlab.com/dkg/socket-activate In the words of Douglas Adams, "there is another theory which states that this has already happened" :) > I believe the convention in the runit/daemontools world is to decide this > is not an important problem to solve and lots of small running daemons is > not something that needs to be avoided, and to use tcpserver or some > equivalent that behaves like inetd for a single service. Even here, > though, I'm not sure if any of those implementations use the same socket > passing protocol as systemd, and I'm not sure if they're yet trivial to > configure as part of Debian packaging. tcpserver certainly does not, it implements the UCSPI protocol, which is a good one in itself, but it is still a different one. G'luck, Peter -- Peter Pentchev roam@{ringlet.net,debian.org,FreeBSD.org} p...@storpool.com PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint 2EE7 A7A5 17FC 124C F115 C354 651E EFB0 2527 DF13
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