topic Re: Pascal & pthreads in Operating System - OpenVMS

Pascal & pthreads

Richard Apthorp — Mon, 21 Mar 2005 06:07:00 GMT

Is there an interface to pthreads from Pascal on I64.
Currently our application uses cma threads running on the Alpha and I would like to change this to the standard pthreads interface when I port to the Itanium (and also to run back on the Alpha so I only have to maintain one code set)
Thanks.

Re: Pascal & pthreads

Ian Miller. — Mon, 21 Mar 2005 07:29:28 GMT

I guess the issue is the definitions - a pascal version of pthread.h - is this correct?

Re: Pascal & pthreads

Ian Miller. — Mon, 21 Mar 2005 07:41:26 GMT

here
http://h71000.www7.hp.com/doc/73final/6493/6101pro_001.html#index_x_44
it says you can call the pthreads library from other languages but you have to roll your own equivilent to pthread.h

Re: Pascal & pthreads

Richard Apthorp — Mon, 21 Mar 2005 10:43:21 GMT

Do you know if anybody has created a pthreads definition file for VMS PASCAL - I don't know how to do it. Do you take the pthreads.h and convert it to PASCAL and work out how each type needs to passed?

Re: Pascal & pthreads

Brian Reiter — Tue, 22 Mar 2005 03:24:53 GMT

Hi Richard,

It should be straightforward to construct the pthreads interface using similar conventions to those in SYS$LIBRARY:STARLET.PAS and SYS$LIBRARY:PASCAL$CMA_ROUTINES.PAS. Base it on the C headers and do a 1 for 1 conversion.

I'll have a look and see if we have any headers for pthread routines in house.

cheers

Brian

Re: Pascal & pthreads

Richard Apthorp — Tue, 22 Mar 2005 06:37:40 GMT

Thanks, I'll give it a go - but if you have anything you could send me to help that would be great, richard dot apthorp at iptest dot com

Re: Pascal & pthreads

Jan van den Ende — Tue, 22 Mar 2005 08:46:28 GMT

Richard, (and everybody else)

please do _NOT_ use plain e-mail addresses in your postings!

Mutilate them in a way that human readers will simply re-construct them, while making it hard for automatons to recognise!!
Mainly it is (alas!) a necessary means of self-protection.

Proost.

Have one on me.

Jan

Re: Pascal & pthreads

Brian Reiter — Tue, 22 Mar 2005 09:27:17 GMT

Richard

Don't know how complete this. I've sanitised any potential condifdential info. The system using this code is live and quite likely somewhere near you.

Re: Pascal & pthreads

Richard Apthorp — Tue, 22 Mar 2005 09:46:03 GMT

Thats exactly what I need, thanks - I'm curious now to know what is running it, any more clues?