/* Initializes the representations registry, building up all of the various
* representations. */
void REPR_initialize_registry(PARROT_INTERP) {
PMC *dyn_reg_func;
/* Allocate name to ID map, and anchor it with the GC. */
repr_name_to_id_map = Parrot_pmc_new(interp, enum_class_Hash);
Parrot_pmc_gc_register(interp, repr_name_to_id_map);
/* Add all core representations. */
register_repr(interp, Parrot_str_new_constant(interp, "KnowHOWREPR"),
KnowHOWREPR_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6opaque"),
P6opaque_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6int"),
P6int_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6num"),
P6num_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6str"),
P6str_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "HashAttrStore"),
HashAttrStore_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "Uninstantiable"),
Uninstantiable_initialize(interp));
/* Set up object for dynamically registering extra representations. */
dyn_reg_func = Parrot_pmc_new(interp, enum_class_Pointer);
VTABLE_set_pointer(interp, dyn_reg_func, REPR_register_dynamic);
VTABLE_set_pmc_keyed_str(interp, interp->root_namespace,
Parrot_str_new_constant(interp, "_REGISTER_REPR"), dyn_reg_func);
}
void
blizkost_bind_pmc_to_sv(BLIZKOST_NEXUS, SV *sv, PMC *target) {
dBNPERL; dBNINTERP;
MAGIC *mg;
mg = sv_magicext(sv, 0, PERL_MAGIC_ext, &blizkost_binder_vtbl, 0, 0);
mg->mg_ptr = (char*)nexus;
mg->mg_obj = (SV*) target;
Parrot_pmc_gc_register(interp, target);
}
/* Initializes the representations registry, building up all of the various
* representations. */
void REPR_initialize_registry(PARROT_INTERP) {
/* Allocate registry and name to ID map, and anchor them so they won't
* get nommed by the GC. */
repr_registry = pmc_new(interp, enum_class_ResizablePMCArray);
Parrot_pmc_gc_register(interp, repr_registry);
repr_name_to_id_map = pmc_new(interp, enum_class_Hash);
Parrot_pmc_gc_register(interp, repr_name_to_id_map);
/* Add all representations. */
register_repr(interp, Parrot_str_new_constant(interp, "KnowHOWREPR"),
KnowHOWREPR_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6opaque"),
P6opaque_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6int"),
P6int_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6num"),
P6num_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "P6str"),
P6str_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "HashAttrStore"),
HashAttrStore_initialize(interp));
register_repr(interp, Parrot_str_new_constant(interp, "Uninstantiable"),
Uninstantiable_initialize(interp));
}
PARROT_EXPORT
PARROT_CANNOT_RETURN_NULL
PARROT_WARN_UNUSED_RESULT
PMC*
Parrot_make_cb(PARROT_INTERP, ARGMOD(PMC* sub), ARGIN(PMC* user_data),
ARGIN(STRING *cb_signature))
{
ASSERT_ARGS(Parrot_make_cb)
PMC *cb, *cb_sig;
int type = 0;
STRING *sc;
/*
* we stuff all the information into the user_data PMC and pass that
* on to the external sub
*/
PMC * const interp_pmc = VTABLE_get_pmc_keyed_int(interp, interp->iglobals,
(INTVAL) IGLOBALS_INTERPRETER);
if (default_interp == NULL)
default_interp = interp;
/* be sure __LINE__ is consistent */
sc = CONST_STRING(interp, "_interpreter");
Parrot_pmc_setprop(interp, user_data, sc, interp_pmc);
sc = CONST_STRING(interp, "_sub");
Parrot_pmc_setprop(interp, user_data, sc, sub);
/* only ASCII signatures are supported */
if (STRING_length(cb_signature) == 3) {
/* Callback return type ignored */
if (STRING_ord(interp, cb_signature, 1) == 'U') {
type = 'D';
}
else {
if (STRING_ord(interp, cb_signature, 2) == 'U') {
type = 'C';
}
}
}
if (type != 'C' && type != 'D')
Parrot_ex_throw_from_c_args(interp, NULL, 1,
"unhandled signature '%Ss' in make_cb", cb_signature);
cb_sig = Parrot_pmc_new(interp, enum_class_String);
VTABLE_set_string_native(interp, cb_sig, cb_signature);
sc = CONST_STRING(interp, "_signature");
Parrot_pmc_setprop(interp, user_data, sc, cb_sig);
/*
* We are going to be passing the user_data PMC to external code, but
* it may go out of scope until the callback is called -- we don't know
* for certain as we don't know when the callback will be called.
* Therefore, to prevent the PMC from being destroyed by a GC sweep,
* we need to anchor it.
*
*/
Parrot_pmc_gc_register(interp, user_data);
/*
* Finally, the external lib awaits a function pointer.
* Create a PMC that points to Parrot_callback_C (or _D);
* it can be passed on with signature 'p'.
*/
cb = Parrot_pmc_new(interp, enum_class_UnManagedStruct);
/*
* Currently, we handle only 2 types:
* _C ... user_data is 2nd parameter
* _D ... user_data is 1st parameter
*/
if (type == 'C')
VTABLE_set_pointer(interp, cb, F2DPTR(Parrot_callback_C));
else
VTABLE_set_pointer(interp, cb, F2DPTR(Parrot_callback_D));
Parrot_pmc_gc_register(interp, cb);
return cb;
}
/* Initializes the store and register with the GC. */
static void setup_sc_stores(PARROT_INTERP) {
scs = Parrot_pmc_new(interp, enum_class_Hash);
Parrot_pmc_gc_register(interp, scs);
}
