[Ecls-list] crash on file not found

[Dean O'Connor]

Thanks for your reply.
I've been using the non-safe functions, cause I could just not get 
cl_safe_eval to work.
But may the gods be praised, suddenly it kicked over. I really don't 
know what I did.

(cl_safe_eval(c_string_to_object(str), Cnil, OBJNULL))

But that seems to work fine now ... phew !!
So now I should be able to go back and use that everywhere I hope. Esp 
for loads.

Re: the cl_env. Arrrrrrrrrrrrrr no I wasn't using ECL_THREADS in my 
code. Doh !
I'll give that a whirl tomorrow. Thanks good pickup.

Cheers
deano

Dustin Long wrote:
> Dean O'Connor wrote:
>   
>> in continuation of my last email ....
>>
>> Ok found I using "make_constant_base_string"  instead of 
>> "make_simple_base_string" when I load files stopped the initial access 
>> violation exception error.
>> I'm finding it hard to get any clear doco on this.
>> eg.
>> cl_load(1, make_simple_base_string("enumerations/sequence-enumeration"));
>>
>> However, if I specify an incorrect filename (ie. file not there) I also 
>> get an access violation exception error.
>>
>> Does this mean I should only use cl_safe_eval()  and not use these 
>> functions, or is it a bug ????
>>   
>>     
> As I understand it, if any of the non-si_safe_eval functions signal a 
> condition, it causes that "frs" error to repeat, then the program to 
> abort. Basically, frs is some sort of frame stack, and since native c 
> code doesn't set up this stack itself, a condition leads to badness. In 
> my own ecl aware code I always use si_safe_eval unless I'm sure the call 
> won't cause a signal (i.e. cl_format is pretty safe).
>
> Also, in response to your email about cl_env, when you were using a 
> threaded build: were you defining ECL_THREADS when compiling your c code 
> as well?
>
> Dustin
>
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