Deprecate setjmp/longjmp? [was Re: Maybe it's time to get rid of tcpwrappers/tcpd?]

[Daniel P. Berrange]

On Mon, Apr 28, 2014 at 09:52:36AM +0200, Nikos Mavrogiannopoulos wrote:
> On Sun, 2014-04-27 at 23:02 +0100, Andrew Price wrote:
> > On 24/04/14 15:13, Lennart Poettering wrote:
> > > We probably should make setjmp()-freeness a requirement for
> > > all code included in Fedora.
> > 
> > Would it be worth the effort, and how feasible is it anyway?
> 
> setjmp and longjmp are tools, that one may use in a good or bad way.
> Along the same lines one could argue for dropping programs that use goto
> in Fedora (because everyone knows that goto is bad). 
> 
> To the point, if a program uses setjmp and longjmp it is often that
> there was no other way to do it. You cannot for example have a
> co-routine/fiber implementation in C without setjmp() and longjmp().

That's not correct - you can easily do coroutines using makecontext
and swapcontext - both gtk-vnc and QEMU do this.

Regards,
Daniel
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