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/* -*- mode: c; indent-tabs-mode: t; c-basic-offset: 8; -*- */
static gpointer
sv_to_callback (GIArgInfo * arg_info,
GITypeInfo * type_info,
SV * sv,
GPerlI11nInvocationInfo * invocation_info)
{
GIBaseInfo *callback_interface_info;
GPerlI11nPerlCallbackInfo *callback_info;
GIScopeType scope;
/* the destroy notify func is handled by _handle_automatic_arg */
dwarn ("pos = %d, name = %s\n",
invocation_info->current_pos,
g_base_info_get_name (arg_info));
callback_interface_info = g_type_info_get_interface (type_info);
callback_info = create_perl_callback_closure (callback_interface_info, sv);
callback_info->data_pos = g_arg_info_get_closure (arg_info);
callback_info->destroy_pos = g_arg_info_get_destroy (arg_info);
callback_info->free_after_use = FALSE;
g_base_info_unref (callback_interface_info);
dwarn (" data at %d, destroy at %d\n",
callback_info->data_pos, callback_info->destroy_pos);
scope = (!gperl_sv_is_defined (sv))
? GI_SCOPE_TYPE_CALL
: g_arg_info_get_scope (arg_info);
switch (scope) {
case GI_SCOPE_TYPE_CALL:
dwarn (" scope = 'call'\n");
free_after_call (invocation_info,
release_perl_callback, callback_info);
break;
case GI_SCOPE_TYPE_NOTIFIED:
dwarn (" scope = 'notified'\n");
/* This case is already taken care of by the notify
* stuff above */
break;
case GI_SCOPE_TYPE_ASYNC:
dwarn (" scope = 'async'\n");
/* FIXME: callback_info->free_after_use = TRUE; */
break;
default:
ccroak ("unhandled scope type %d encountered",
g_arg_info_get_scope (arg_info));
}
invocation_info->callback_infos =
g_slist_prepend (invocation_info->callback_infos,
callback_info);
dwarn (" -> closure %p from info %p\n",
callback_info->closure, callback_info);
#if GI_CHECK_VERSION (1, 72, 0)
if (callback_info->closure)
return g_callable_info_get_closure_native_address (callback_interface_info,
callback_info->closure);
else
return NULL;
#else
return callback_info->closure;
#endif
}
static gpointer
sv_to_callback_data (SV * sv,
GPerlI11nInvocationInfo * invocation_info)
{
GSList *l;
if (!invocation_info)
return NULL;
for (l = invocation_info->callback_infos; l != NULL; l = l->next) {
GPerlI11nPerlCallbackInfo *callback_info = l->data;
if (callback_info->data_pos == ((gint) invocation_info->current_pos)) {
dwarn ("user data for Perl callback %p\n",
callback_info);
attach_perl_callback_data (callback_info, sv);
/* If the user did not specify any code and data and if
* there is no destroy notify function, then there is
* no need for us to pass on our callback info struct
* as C user data. Some libraries (e.g., vte) even
* assert that the C user data be NULL if the C
* function pointer is NULL. */
if (!gperl_sv_is_defined (callback_info->code) &&
!gperl_sv_is_defined (callback_info->data) &&
-1 == callback_info->destroy_pos)
{
dwarn (" -> handing over NULL");
return NULL;
}
return callback_info;
}
}
if (invocation_info->is_callback) {
GPerlI11nCCallbackInfo *wrapper = INT2PTR (GPerlI11nCCallbackInfo*, SvIV (sv));
dwarn ("user data for C callback %p\n", wrapper);
return wrapper->data;
}
return NULL;
}
static SV *
callback_to_sv (GICallableInfo *interface, gpointer func, GPerlI11nInvocationInfo *invocation_info)
{
GIArgInfo arg_info;
GPerlI11nCCallbackInfo *callback_info;
HV *stash;
SV *code_sv, *data_sv;
GSList *l;
for (l = invocation_info->callback_infos; l != NULL; l = l->next) {
GPerlI11nCCallbackInfo *callback_info = l->data;
if ((gint) invocation_info->current_pos == callback_info->destroy_pos) {
dwarn ("destroy notify for C callback %p\n",
callback_info);
callback_info->destroy = func;
/* release_c_callback is called from
* Glib::Object::Introspection::_FuncWrapper::DESTROY */
return NULL;
}
}
g_callable_info_load_arg (invocation_info->interface,
(gint) invocation_info->current_pos,
&arg_info);
dwarn ("C callback: pos = %d, name = %s\n",
invocation_info->current_pos,
g_base_info_get_name (&arg_info));
callback_info = create_c_callback_closure (interface, func);
callback_info->data_pos = g_arg_info_get_closure (&arg_info);
callback_info->destroy_pos = g_arg_info_get_destroy (&arg_info);
if (func) {
data_sv = newSViv (PTR2IV (callback_info));
stash = gv_stashpv ("Glib::Object::Introspection::_FuncWrapper", TRUE);
code_sv = sv_bless (newRV_noinc (data_sv), stash);
} else {
data_sv = code_sv = &PL_sv_undef;
}
callback_info->data_sv = data_sv;
dwarn (" data at %d, destroy at %d\n",
callback_info->data_pos, callback_info->destroy_pos);
invocation_info->callback_infos =
g_slist_prepend (invocation_info->callback_infos,
callback_info);
dwarn (" -> SV %p from info %p\n",
code_sv, callback_info);
return code_sv;
}
static SV *
callback_data_to_sv (gpointer data,
GPerlI11nInvocationInfo * invocation_info)
{
GSList *l;
if (!invocation_info)
return NULL;
for (l = invocation_info->callback_infos; l != NULL; l = l->next) {
GPerlI11nCCallbackInfo *callback_info = l->data;
if (callback_info->data_pos == (gint) invocation_info->current_pos) {
dwarn ("user data for C callback %p\n",
callback_info);
attach_c_callback_data (callback_info, data);
return callback_info->data_sv;
}
}
if (data && invocation_info->is_callback) {
GPerlI11nPerlCallbackInfo *wrapper = data;
dwarn ("user data for Perl callback %p\n", wrapper);
return wrapper->data;
}
return NULL;
}
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