Thank you!

On Mon, Sep 28, 2020 at 7:33 PM David T. Lewis <lewis at mail.msen.com> wrote:

> Hi Chris,
>
> RemoteTask is entirely in memory, no disk access, it forks an exact copy
> of the image and VM. The block is evaluated in the child image, and the
> result is serialized back to your parent image. The parent and child
> image are identical at the point of the fork, so neither is any more or
> less secure than the other.
>
> Regarding your convenience method, please try using OSProcess
> class>>outputOf:
> instead. This will probably do a much better job for you because it
> handles all of the stdio piping without using files, and it also will
> present any external command errors in the form of an exception in Squeak.
>
> Dave
>
> On Mon, Sep 28, 2020 at 04:23:23PM -0500, Chris Muller wrote:
> > Hi Dave,
> >
> > I saw your RemoteTask the other day and had a quick question about it.
> >
> > Do you see any pitfalls doing operations that require or provide
> sensitive
> > security key information as input, or output.
> >
> > As an analogy, I've been using my own convenience method on OSProcess to
> > give me a way get Linux command output into the image, but it does so by
> > simply redirecting the command's output to a file, reading that file into
> > an in-image String, then deleting the file.  But that's not something I
> > would want to use if it involved passing a password, for example.
> >
> > My hope is RemoteTask operates all in memory and does not utilize the
> hard
> > drive to accomplish that.
> >
> > Thanks,
> >   Chris
> >
> > On Sat, Sep 26, 2020 at 7:06 PM David T. Lewis <lewis at mail.msen.com>
> wrote:
> >
> > >
> > > On Sat, Sep 26, 2020 at 03:20:10PM -0700, tim Rowledge wrote:
> > > >
> > > > And multi-core? Well yes I suppose. Except that one can very easily
> > > spawn multiple running images using Dave Lewis' OSProcess package,
> > > including in ways that do some work and return the results.The spawning
> > > takes very little time; for example on said Pi4 it takes 39mS to do
> > > >     UnixProcess forkHeadlessSqueakAndDoThenQuit: [UnixProcess
> helloWorld]
> > >
> > > <OT>
> > > Or the somewhat more interesting example:
> > >
> > >    RemoteTask do: [3 + 4] ==> 7
> > >
> > > which completes in on the order of 10ms on my PC, and hopefully not too
> > > much worse on Pi4. The [3 + 4] block is evaluated in a spawned image
> with
> > > results returned to the parent image.
> > > </OT>
> > >
> > > Dave
> > >
> > >
> > >
>
> >
>
>
>
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