OpenEuphoria

Re: Threading with EXW

• Posted by Robert Craig <rds at ATTCANADA.NET> Oct 04, 1999
• 487 views

John Cannon writes:
> Now I think the problem is more fundamental:
> Exw cannot interpret several threads simultaneously.

Support for multiple threads would require extensive
modifications to the Euphoria interpreter. It isn't something
that you can do, as a Euphoria programmer, just by calling
WIN32 API routines.

A WIN32 program can create multiple threads, each with
its own separate call stack, but sharing the same global
variables. Each thread runs "in parallel" with the other
threads, and there are various mechanisms to
prevent threads from interfering with each other.

You may have succeeded in creating multiple threads
of the interpreter itself, each one messing with global
variables, without any awareness of the others.
I'm not surprised it crashed.

Euphoria might support multiple threads someday,
but it would take a lot of recoding, to make it work.
For instance there would have to be multiple
Euphoria call stacks, and multiples of many other
internal data structures.

Regards,
     Rob Craig
     Rapid Deployment Software
     http://www.RapidEuphoria.com