On Mon, 7 Aug 2006, Florian Ragwitz wrote: > Hello there, > > I wrote bindings for a small C library using XS. In those bindings I map > some c structures to a perl objects, which are blesed into > "Audio::XMMSClient". > > The new() method allocates a new c structure structure and my bindings > wrap it into an object. Now I'd like to free the memory allocated in > new() when the perl object isn't used anymore. > > DESTROY seems to be the way to do that. So I defined a DESTROY method in > my XS code: > > void > DESTROY(c) > my_c_structure_t* c > CODE: > my_c_structure_unref(c); > > > Unfortunately DESTROY won't be called when the perl objects reference > count reaches zero as it seems to be the case in pure-perl world. What's > the difference between pure-perl code and XS code with regard to > DESTROY? How can I get my XS DESTROY method called properly?
DESTROY is not necessarily called at the time the refcount hits zero. Perl cleans up objects without references only when leaving a scope. If you need more immediate action, just undef them yourself at the point they're no longer needed. Steve
