Anybody done this
Fri Apr 2 11:36:01 CEST 2004
On Thu, 1 Apr 2004, Dave Love wrote:
> Joe Armstrong <> writes:
> > 2) Stopping and starting Erlang.
> > I'd like to say erlang:suspend(File) which would suspend Erlang
> > dumping the state into a file and later say erlang:resume(File) which
> > would re-start the suspended Erlang from *exactly* the state it was
> > in.
> Emacs' unexec does basically that, but (a) unexec is a maintenance
> nightmare, whatever rms says -- use mmapped data instead -- and (b)
> you're stuffed if you want state like network connexions to persist.
> (Unexec has actually been used in a few things other than Emacs.)
To answer my own question - since what I really want to do is
suspend Elang and resume it on another machine I could do this is a
number of ways.
1) Hack Erlang to do this (difficult)
2) Hack the environment in which Erlang runs.
Really I'd like a virtual OS which could be suspended and resumed -
Oh and I'd like to "virtualise" all resources (hence my question on ext2).
Somethink like VMWare cannot be arbitrarly suspended - so what else
could we try?
Has anybody thought about porting Erlang to one of these VM's?
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