Guile library behaviour

[Daniel CAUNE <danielc@in-fusio.com>]

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Hi, 

Last night I went deeper in the Guile library code and I saw the reason
of my application server shutdown. After invoking the gh_enter function,
the first function that is called after the Guile initialization is the
function gl_launch_pad, which calls my own function and then calls the
exit system function. Then all my application server shutdowns!

I can replace this gh_launch_pad by my own launcher function, but I
think my problem'll stay the same since the scm_boot_guile also calls
the exit system function when ending. The code documentation explains
that "(...) scm_boot_guile function exits, rather than returning, to
discourage people from making that mistake.". "Yes, I see", to use the
favorite reply of Ryo Hazuki !

I don't clearly understand the main idea of the Guile library
initialization design. How can use it in an application that must be
independent from a script interpreter (dynamic load and unload)?

Any ideas?


Daniel



>Hi, 
> 
>I'm encountering some problems with a development at home of a small 
>server application in C++ using the Guile dynamic libraries for the 
>Windows platform, included in the file guile-1.4.zip downloaded from 
>http://www.textsure.net/~ela/download/. 
> 
>One of my application's thread dynamically loads the Guile library 
>(dynamic binding) and calls the gh_enter function (i.e. scm_boot_guile)
>to initialize the Scheme interpreter, and then... all the application's
>process shutdowns brutally! I was a bit confused, so I've developped a 
>mono-threaded application to test this Guile library (static binding), 
>and it rocks! 
> 
>So I've trie to investigate further, debugging the assembly code of the
>Guile library called by my server application code (this library
doesn't 
>include debug information, but I get the Guile source files from GNU
web 
>site), and trying to understand where it sucks. 
> 
>I've followed my instruction pointer until the scm_internal_lazy_catch 
>code (throw.c) where I lost it, my baby crying and asking for her milk 
>in the darkness of the night... Return to the reallity! I'll certainly 
>continue my quest tonight, but I would prefer that a valiant knight, or
>a magician, gives here the exact reason of my trouble, if he've already
>encountered it. 
> 
>Thanks! 
> 
> 
>Daniel 
> 
>________________________________________ 
>"Thuong nhau qua, can nhau dau..." 

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