Re: Thread and guile environment

[Neil Jerram <neil@ossau.uklinux.net>]

Andy Wingo <wingo@pobox.com> writes:

> On Mon 05 Jul 2010 09:23, rixed@happyleptic.org writes:
>
>> Suppose I have a multithreaded C program. Isn't the guile environment supposed
>> to be shared amongst all threads ? That's what I understood from reading the
>> docs anyway.
>>
>> Yet this simple exemple shows the opposite (see the 3 attached files).
>> So am I supposed to source my global scheme definitions in all threads
>> ?
>
> Interestingly, the first thread has you in (guile-user), but the second
> has you in (guile). So you don't see the full definition of format, nor
> do you see hug.

That's what I thought too.  But in that case I have no idea why my
'(define-module (guile-user))' suggestion didn't work.

> But it's quite ugly. Does anyone have any input as to what module should
> be current when a thread previously unknown to Guile enters Guile?

Surely it has to be (guile-user), since that what the end of boot-9.scm
moves into - and hence is well-established for the single thread case.
I suspect that a program that calls scm_with_guile() on multiple threads
can't necessarily predict which of the threads will perform the Guile
startup.

     Neil