[Bug 1330] RFE: 'ControlPersist' support -- automatically fork and leave ControlMaster behind as a daemon

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1330

--- Comment #19 from Martin Ling <martin-mindrot-bugzilla at earth.li>  ---
(In reply to comment #17)
>
> That seems more confusing to me, and I don't see what the advantage
> would be.  As far as I can tell, everything your system of 3
> variables could accomplish can also be accomplished with the existing
> ControlPersist = yes/no/timespec option.

I wasn't really intending to offer more possibilities, rather just
avoiding overloading one option with multiple meanings. As you point
out, having 'no' and '0' mean different things is confusing.

Maybe there's a good two-option compromise.

Do we agree on the use cases that need to be supported? I think they
are:

1. master session held open till slaves exit (original behaviour)

2. master backgrounded on first session exit, closes with last slave.

3. master backgrounded on first session exit, closes after timeout.

4. master backgrounded on first session exit, never closes.

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