Erik Sandberg wrote:
class A {
SCM b_;
A() { b_ = get_b (); scm_gc_protect_object (b_); }
~A() { scm_gc_unprotect_object (b_); }
...
};
Now if a third smob C contains an A object, as in
class C {
A a_;
...
DECLARE_SMOBS (C);
};
.. then A's gc_unprotect will be called during the gc sweep.
Is my problem related to the smob macros in Lilypond? (if not, I should ask on
guile-user instead).
do the following:
make A::protect() and A::unprotect().
In C::C call A::unprotect, and use C::mark to mark the smob. You will
also need machinery to make sure unprotect() isn't called if the B is no
longer protected.
--
Han-Wen Nienhuys - [EMAIL PROTECTED] - http://www.xs4all.nl/~hanwen
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