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Re: Dumping and restoring side-effects

To: gdt at fnord dot ir dot bbn dot com
Subject: Re: Dumping and restoring side-effects
From: Neil Jerram <neil at ossau dot uklinux dot net>
Date: Fri, 4 Feb 2000 00:58:49 GMT
CC: gjb at cs dot washington dot edu, guile at sourceware dot cygnus dot com
References: <qrr4sbr5rnz.fsf@clavicle.cs.washington.edu> <rmi1z6u4f7i.fsf@fnord.ir.bbn.com>

Greg Troxel writes:

   I'm not sure fresheners can work with all external objects given my
   invariant checker/freshener idea; not all external APIs are
   idempotent.

XAllocColor, for example.  In general you don't know which colorcell
you will get back.

   But it sounds like you are proposing a freshener to
   recreate external state when it is known that the external state is
   nonexistent; this is easier than an unknown/untrusted external state.

Agreed.

Regards,

        Neil

References:
- Dumping and restoring side-effects
  - From: Greg J. Badros
- Re: Dumping and restoring side-effects
  - From: Greg Troxel

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