On 13/12/2021 12:58 p.m., Greg Minshall wrote:
Jeff,

This sounds like an OS feature, not an R feature... certainly not a
portable R feature.

i'm not arguing for it, but this seems to me like something that could
be a language feature.


R functions can call libraries written in other languages, and can start processes, etc. R doesn't know everything going on in every function call, and would have a lot of trouble saving it.

If you added some limitations, e.g. a process that periodically has its entire state stored in R variables, then it would be a lot easier.

Duncan Murdoch

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