static GPerlI11nPerlCallbackInfo *
create_perl_callback_closure (GICallableInfo *cb_info, SV *code)
{
GPerlI11nPerlCallbackInfo *info;
info = g_new0 (GPerlI11nPerlCallbackInfo, 1);
if (!gperl_sv_is_defined (code))
return info;
info->interface = g_base_info_ref (cb_info);
info->cif = g_new0 (ffi_cif, 1);
info->closure =
g_callable_info_prepare_closure (info->interface, info->cif,
invoke_perl_code, info);
/* FIXME: This should most likely use SvREFCNT_inc instead of
* newSVsv. */
info->code = newSVsv (code);
info->sub_name = NULL;
/* These are only relevant for signal marshalling; if needed, they get
* set in invoke_perl_signal_handler. */
info->swap_data = FALSE;
info->args_converter = NULL;
#ifdef PERL_IMPLICIT_CONTEXT
info->priv = aTHX;
#endif
return info;
}
PyGICClosure*
_pygi_make_native_closure (GICallableInfo* info,
GIArgInfo* arg_info,
PyObject *py_function,
gpointer py_user_data)
{
PyGICClosure *closure;
ffi_closure *fficlosure;
/* Begin by cleaning up old async functions */
g_slist_foreach(async_free_list, (GFunc)_pygi_invoke_closure_free, NULL);
g_slist_free(async_free_list);
async_free_list = NULL;
/* Build the closure itself */
closure = g_slice_new0(PyGICClosure);
closure->info = (GICallableInfo *) g_base_info_ref ((GIBaseInfo *) info);
closure->function = py_function;
closure->user_data = py_user_data;
Py_INCREF(py_function);
if (closure->user_data)
Py_INCREF(closure->user_data);
fficlosure =
g_callable_info_prepare_closure (info, &closure->cif, _pygi_closure_handle,
closure);
closure->closure = fficlosure;
/* Give the closure the information it needs to determine when
to free itself later */
closure->scope = g_arg_info_get_scope(arg_info);
return closure;
}
/* assumes ownership of sub_name */
static GPerlI11nPerlCallbackInfo *
create_perl_callback_closure_for_named_sub (GICallableInfo *cb_info, gchar *sub_name)
{
GPerlI11nPerlCallbackInfo *info;
info = g_new0 (GPerlI11nPerlCallbackInfo, 1);
info->interface = g_base_info_ref (cb_info);
info->cif = g_new0 (ffi_cif, 1);
info->closure =
g_callable_info_prepare_closure (info->interface, info->cif,
invoke_perl_code, info);
info->sub_name = sub_name;
info->code = NULL;
info->data = NULL;
#ifdef PERL_IMPLICIT_CONTEXT
info->priv = aTHX;
#endif
return info;
}
PyGICClosure*
_pygi_destroy_notify_create (void)
{
if (!global_destroy_notify) {
PyGICClosure *destroy_notify = g_slice_new0 (PyGICClosure);
g_assert (destroy_notify);
GIBaseInfo* glib_destroy_notify = g_irepository_find_by_name (NULL, "GLib", "DestroyNotify");
g_assert (glib_destroy_notify != NULL);
g_assert (g_base_info_get_type (glib_destroy_notify) == GI_INFO_TYPE_CALLBACK);
destroy_notify->closure = g_callable_info_prepare_closure ( (GICallableInfo*) glib_destroy_notify,
&destroy_notify->cif,
_pygi_destroy_notify_callback_closure,
NULL);
global_destroy_notify = destroy_notify;
}
return global_destroy_notify;
}
static void
in_callback_argument_from_ruby(RBGIArgMetadata *metadata, GArray *in_args)
{
gpointer callback_function;
GIArgInfo *arg_info;
GIArgument *callback_argument;
GIArgument *closure_argument = NULL;
GIArgument *destroy_argument = NULL;
RBGICallback *callback = NULL;
arg_info = &(metadata->arg_info);
callback_argument = &(g_array_index(in_args,
GIArgument,
metadata->in_arg_index));
if (metadata->closure_in_arg_index != -1) {
closure_argument = &(g_array_index(in_args,
GIArgument,
metadata->closure_in_arg_index));
}
if (metadata->destroy_in_arg_index != -1) {
destroy_argument = &(g_array_index(in_args,
GIArgument,
metadata->destroy_in_arg_index));
}
if (!rb_block_given_p() && g_arg_info_may_be_null(arg_info)) {
callback_argument->v_pointer = NULL;
if (closure_argument) {
closure_argument->v_pointer = NULL;
}
if (destroy_argument) {
destroy_argument->v_pointer = NULL;
}
return;
}
callback_function = find_callback_function(arg_info);
if (callback_function) {
callback_argument->v_pointer = callback_function;
} else {
callback = RB_ZALLOC(RBGICallback);
callback->type_info = g_arg_info_get_type(arg_info);
callback->callback_info = g_type_info_get_interface(callback->type_info);
callback->closure =
g_callable_info_prepare_closure(callback->callback_info,
&(callback->cif),
ffi_closure_callback,
callback);
callback_argument->v_pointer = callback->closure;
}
if (closure_argument) {
RBGICallbackData *callback_data;
callback_data = ALLOC(RBGICallbackData);
callback_data->callback = callback;
callback_data->metadata = metadata;
callback_data->rb_callback = rb_block_proc();
callback_data_guard_from_gc(callback_data);
closure_argument->v_pointer = callback_data;
}
if (destroy_argument) {
destroy_argument->v_pointer = destroy_notify;
}
}
static void
create_native_closure (GType interface_type,
GIInterfaceInfo *iface_info,
GIVFuncInfo *vfunc_info,
MethodImpl *impl)
{
GIFunctionInfo *invoker_info;
GIStructInfo *struct_info;
GIFieldInfo *field_info;
GITypeInfo *type_info;
GICallbackInfo *callback_info;
guint n_fields, i;
gboolean found_field_info;
invoker_info = g_vfunc_info_get_invoker (vfunc_info);
if (invoker_info == NULL)
{
g_debug ("No invoker for VFunc '%s.%s'",
g_base_info_get_name (iface_info),
g_base_info_get_name (vfunc_info));
return;
}
struct_info = g_interface_info_get_iface_struct (iface_info);
n_fields = g_struct_info_get_n_fields (struct_info);
found_field_info = FALSE;
for (i = 0; i < n_fields; i++)
{
field_info = g_struct_info_get_field (struct_info, i);
if (strcmp (g_base_info_get_name (field_info),
g_base_info_get_name (vfunc_info)) == 0)
{
found_field_info = TRUE;
break;
}
g_base_info_unref (field_info);
}
if (!found_field_info)
{
g_debug ("No struct field for VFunc '%s.%s'",
g_base_info_get_name (iface_info),
g_base_info_get_name (vfunc_info));
g_base_info_unref (struct_info);
g_base_info_unref (invoker_info);
return;
}
type_info = g_field_info_get_type (field_info);
g_assert (g_type_info_get_tag (type_info) == GI_TYPE_TAG_INTERFACE);
callback_info = g_type_info_get_interface (type_info);
g_assert (g_base_info_get_type (callback_info) == GI_INFO_TYPE_CALLBACK);
impl->interface_type = interface_type;
impl->invoker_info = invoker_info;
impl->method_name = g_base_info_get_name (invoker_info);
impl->closure = g_callable_info_prepare_closure (callback_info, &impl->cif,
handle_method_impl, impl);
impl->struct_offset = g_field_info_get_offset (field_info);
g_base_info_unref (callback_info);
g_base_info_unref (type_info);
g_base_info_unref (field_info);
g_base_info_unref (struct_info);
}
