Program that uses Guile crashes

Program that uses Guile crashes

[Janos Blazi]

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I have written a C++ program that crahses after some time. My data look like

struct gppoint {
  point *p;
  SCM update_func;
};

point is a C++ class and for the C++ part I use new and delete while Guile uses its own allocation function.
I also use new and delete in another part of my program for wxWindows data.

Can new and Guile's own allocation scheme coexist?

TIA,
Janos Blazi

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Re: Program that uses Guile crashes

[Marius Vollmer]

"Janos Blazi" <jblazi@gmx.de> writes:

> Can new and Guile's own allocation scheme coexist?

Yes, certainly.  However, Guile's allocation scheme is quite different
from new/delete or malloc/free.  You don't have to explicitely delete
or free a object, but you have to take care that the object is always
properly visible to Guile's garbage collector.  Objects on the C stack
and inside other Guile objects are automatically visible, but other
objects might not be.  For those, you have to call
scm_gc_protect_object and scm_gc_unprotect object at appropriate
times.  Or turn your structure into a smob.

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GPG: D5D4E405 - 2F9B BCCC 8527 692A 04E3  331E FAF8 226A D5D4 E405


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