Hi. "James K. Lowden" <jklow...@schemamania.org> wrote: |mlel...@serpens.de (Michael van Elst) wrote: |> r...@marples.name (Roy Marples) writes: |>>See here: |>>http://mail-index.netbsd.org/tech-userlevel/2016/03/21/msg009799.html
Well, btw., the MUA i maintain forks, keeping a communication pipe to its parent, then creates the dotlock file, lingering on the channel to get the "delete file" info. Shall the parent die the channel will close, which also counts as "delete file". Thus there will be no lingering pid file unless someone maliciously kills that child or the system crashes: unfortunately there exists no O_ flag that could be used to overcome the latter problem, something that would allow file deletion but keep the name in the in-memory VFS layer, so to say, unless the reference goes. But that can't be helped from userspace. --steffen
