Re: [MacPerl] What's Latest MacPerl

[Matthias Neeracher <neeri@iis.ee.ethz.ch>]

In article <v04205500b3b7cc73ccdf@[209.214.64.206]>, Richard Gordon <maccgi@bellsouth.net> writes:
> At 15:56 -0400 07/16/1999, Paul J. Schinder wrote:
>> Uhh, say what?  MacOS has had threads for quite a while.

> I would not presume to know exactly how the lack of system level 
> support for threads impacts a port of 5.005 to the current MacOS, but 
> gather from Rich's post that it is a deal breaker. A more interesting 
> issue is why MacPerl doesn't support threading at the application 
> level in any case (at least as far as I know)?

I'm sort of in the middle of writing a position paper on this, but to explain
the issues briefly:

 - The MacOS thread manager was not integrated with the POSIX model of
   operation (where you would, at the least, expect blocking file and network
   calls to switch threads).
 - Support for multiple Perl interpreters in the same process used to bve
   somewhat flaky, but luckily, that's an area where Windows and MacOS perl
   have similar interests.

Matthias

-- 
Matthias Neeracher   <neeri@iis.ee.ethz.ch>   http://www.iis.ee.ethz.ch/~neeri
  "And that's why I am going to turn this world upside down, and make
   of it a fire so *bright* that someone real will notice"
                                -- Vernor Vinge, _Tatja Grimm's World_




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