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STATIC MGVTBL null_mg_vtbl = {
NULL, /* get */
NULL, /* set */
NULL, /* len */
NULL, /* clear */
NULL, /* free */
#if MGf_COPY
NULL, /* copy */
#endif /* MGf_COPY */
#if MGf_DUP
NULL, /* dup */
#endif /* MGf_DUP */
#if MGf_LOCAL
NULL, /* local */
#endif /* MGf_LOCAL */
};
void xs_object_magic_attach_struct (pTHX_ SV *sv, void *ptr) {
sv_magicext(sv, NULL, PERL_MAGIC_ext, &null_mg_vtbl, ptr, 0 );
}
SV *xs_object_magic_create (pTHX_ void *ptr, HV *stash) {
HV *hv = newHV();
SV *obj = newRV_noinc((SV *)hv);
sv_bless(obj, stash);
xs_object_magic_attach_struct(aTHX_ (SV *)hv, ptr);
return obj;
}
STATIC MAGIC *xs_object_magic_get_mg (pTHX_ SV *sv) {
MAGIC *mg;
if (SvTYPE(sv) >= SVt_PVMG) {
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
if (
(mg->mg_type == PERL_MAGIC_ext)
&&
(mg->mg_virtual == &null_mg_vtbl)
) {
return mg;
}
}
}
return NULL;
}
void *xs_object_magic_get_struct (pTHX_ SV *sv) {
MAGIC *mg = xs_object_magic_get_mg(aTHX_ sv);
if ( mg )
return mg->mg_ptr;
else
return NULL;
}
void *xs_object_magic_get_struct_rv_pretty (pTHX_ SV *sv, const char *name) {
if ( sv && SvROK(sv) ) {
MAGIC *mg = xs_object_magic_get_mg(aTHX_ SvRV(sv));
if ( mg )
return mg->mg_ptr;
else
croak("%s does not have a struct associated with it", name);
} else {
croak("%s is not a reference", name);
}
}
void *xs_object_magic_get_struct_rv (pTHX_ SV *sv) {
return xs_object_magic_get_struct_rv_pretty(aTHX_ sv, "argument");
}
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