[R] checkpointing

[Duncan Murdoch]

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