--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/glib/libgobject/src/gclosure.c Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,614 @@
+/* GObject - GLib Type, Object, Parameter and Signal Library
+ * Copyright (C) 2000-2001 Red Hat, Inc.
+ * Copyright (C) 2005 Imendio AB
+ * Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#include "gclosure.h"
+
+/*
+ * MT safe with regards to reference counting.
+ */
+
+#include "gvalue.h"
+#include "gobjectalias.h"
+#include <string.h>
+
+
+#define CLOSURE_MAX_REF_COUNT ((1 << 15) - 1)
+#define CLOSURE_MAX_N_GUARDS ((1 << 1) - 1)
+#define CLOSURE_MAX_N_FNOTIFIERS ((1 << 2) - 1)
+#define CLOSURE_MAX_N_INOTIFIERS ((1 << 8) - 1)
+#define CLOSURE_N_MFUNCS(cl) ((cl)->meta_marshal + \
+ ((cl)->n_guards << 1L))
+/* same as G_CLOSURE_N_NOTIFIERS() (keep in sync) */
+#define CLOSURE_N_NOTIFIERS(cl) (CLOSURE_N_MFUNCS (cl) + \
+ (cl)->n_fnotifiers + \
+ (cl)->n_inotifiers)
+
+typedef union {
+ GClosure closure;
+ volatile gint vint;
+} ClosureInt;
+
+#define CHANGE_FIELD(_closure, _field, _OP, _value, _must_set, _SET_OLD, _SET_NEW) \
+G_STMT_START { \
+ ClosureInt *cunion = (ClosureInt*) _closure; \
+ gint new_int, old_int, success; \
+ do \
+ { \
+ ClosureInt tmp; \
+ tmp.vint = old_int = cunion->vint; \
+ _SET_OLD tmp.closure._field; \
+ tmp.closure._field _OP _value; \
+ _SET_NEW tmp.closure._field; \
+ new_int = tmp.vint; \
+ success = g_atomic_int_compare_and_exchange (FIX_CASTING(int *)&cunion->vint, old_int, new_int); \
+ } \
+ while (!success && _must_set); \
+} G_STMT_END
+
+#define SWAP(_closure, _field, _value, _oldv) CHANGE_FIELD (_closure, _field, =, _value, TRUE, *(_oldv) =, (void) )
+#define SET(_closure, _field, _value) CHANGE_FIELD (_closure, _field, =, _value, TRUE, (void), (void) )
+#define INC(_closure, _field) CHANGE_FIELD (_closure, _field, +=, 1, TRUE, (void), (void) )
+#define INC_ASSIGN(_closure, _field, _newv) CHANGE_FIELD (_closure, _field, +=, 1, TRUE, (void), *(_newv) = )
+#define DEC(_closure, _field) CHANGE_FIELD (_closure, _field, -=, 1, TRUE, (void), (void) )
+#define DEC_ASSIGN(_closure, _field, _newv) CHANGE_FIELD (_closure, _field, -=, 1, TRUE, (void), *(_newv) = )
+
+#if 0 /* for non-thread-safe closures */
+#define SWAP(cl,f,v,o) (void) (*(o) = cl->f, cl->f = v)
+#define SET(cl,f,v) (void) (cl->f = v)
+#define INC(cl,f) (void) (cl->f += 1)
+#define INC_ASSIGN(cl,f,n) (void) (cl->f += 1, *(n) = cl->f)
+#define DEC(cl,f) (void) (cl->f -= 1)
+#define DEC_ASSIGN(cl,f,n) (void) (cl->f -= 1, *(n) = cl->f)
+#endif
+
+enum {
+ FNOTIFY,
+ INOTIFY,
+ PRE_NOTIFY,
+ POST_NOTIFY
+};
+
+
+/* --- functions --- */
+EXPORT_C GClosure*
+g_closure_new_simple (guint sizeof_closure,
+ gpointer data)
+{
+ GClosure *closure;
+
+ g_return_val_if_fail (sizeof_closure >= sizeof (GClosure), NULL);
+ closure = g_malloc0 (sizeof_closure);
+ SET (closure, ref_count, 1);
+ SET (closure, meta_marshal, 0);
+ SET (closure, n_guards, 0);
+ SET (closure, n_fnotifiers, 0);
+ SET (closure, n_inotifiers, 0);
+ SET (closure, in_inotify, FALSE);
+ SET (closure, floating, TRUE);
+ SET (closure, derivative_flag, 0);
+ SET (closure, in_marshal, FALSE);
+ SET (closure, is_invalid, FALSE);
+ closure->marshal = NULL;
+ closure->data = data;
+ closure->notifiers = NULL;
+ memset (G_STRUCT_MEMBER_P (closure, sizeof (*closure)), 0, sizeof_closure - sizeof (*closure));
+
+ return closure;
+}
+
+static inline void
+closure_invoke_notifiers (GClosure *closure,
+ guint notify_type)
+{
+ /* notifier layout:
+ * meta_marshal n_guards n_guards n_fnotif. n_inotifiers
+ * ->[[meta_marshal][pre_guards][post_guards][fnotifiers][inotifiers]]
+ *
+ * CLOSURE_N_MFUNCS(cl) = meta_marshal + n_guards + n_guards;
+ * CLOSURE_N_NOTIFIERS(cl) = CLOSURE_N_MFUNCS(cl) + n_fnotifiers + n_inotifiers
+ *
+ * constrains/catches:
+ * - closure->notifiers may be reloacted during callback
+ * - closure->n_fnotifiers and closure->n_inotifiers may change during callback
+ * - i.e. callbacks can be removed/added during invocation
+ * - must prepare for callback removal during FNOTIFY and INOTIFY (done via ->marshal= & ->data=)
+ * - must distinguish (->marshal= & ->data=) for INOTIFY vs. FNOTIFY (via ->in_inotify)
+ * + closure->n_guards is const during PRE_NOTIFY & POST_NOTIFY
+ * + closure->meta_marshal is const for all cases
+ * + none of the callbacks can cause recursion
+ * + closure->n_inotifiers is const 0 during FNOTIFY
+ */
+ switch (notify_type)
+ {
+ GClosureNotifyData *ndata;
+ guint i, offs;
+ case FNOTIFY:
+ while (closure->n_fnotifiers)
+ {
+ guint n;
+ DEC_ASSIGN (closure, n_fnotifiers, &n);
+
+ ndata = closure->notifiers + CLOSURE_N_MFUNCS (closure) + n;
+ closure->marshal = (GClosureMarshal) ndata->notify;
+ closure->data = ndata->data;
+ ndata->notify (ndata->data, closure);
+ }
+ closure->marshal = NULL;
+ closure->data = NULL;
+ break;
+ case INOTIFY:
+ SET (closure, in_inotify, TRUE);
+ while (closure->n_inotifiers)
+ {
+ guint n;
+ DEC_ASSIGN (closure, n_inotifiers, &n);
+
+ ndata = closure->notifiers + CLOSURE_N_MFUNCS (closure) + closure->n_fnotifiers + n;
+ closure->marshal = (GClosureMarshal) ndata->notify;
+ closure->data = ndata->data;
+ ndata->notify (ndata->data, closure);
+ }
+ closure->marshal = NULL;
+ closure->data = NULL;
+ SET (closure, in_inotify, FALSE);
+ break;
+ case PRE_NOTIFY:
+ i = closure->n_guards;
+ offs = closure->meta_marshal;
+ while (i--)
+ {
+ ndata = closure->notifiers + offs + i;
+ ndata->notify (ndata->data, closure);
+ }
+ break;
+ case POST_NOTIFY:
+ i = closure->n_guards;
+ offs = closure->meta_marshal + i;
+ while (i--)
+ {
+ ndata = closure->notifiers + offs + i;
+ ndata->notify (ndata->data, closure);
+ }
+ break;
+ }
+}
+
+EXPORT_C void
+g_closure_set_meta_marshal (GClosure *closure,
+ gpointer marshal_data,
+ GClosureMarshal meta_marshal)
+{
+ GClosureNotifyData *notifiers;
+
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (meta_marshal != NULL);
+ g_return_if_fail (closure->is_invalid == FALSE);
+ g_return_if_fail (closure->in_marshal == FALSE);
+ g_return_if_fail (closure->meta_marshal == 0);
+
+ notifiers = closure->notifiers;
+ closure->notifiers = g_renew (GClosureNotifyData, NULL, CLOSURE_N_NOTIFIERS (closure) + 1);
+ if (notifiers)
+ {
+ /* usually the meta marshal will be setup right after creation, so the
+ * g_memmove() should be rare-case scenario
+ */
+ g_memmove (closure->notifiers + 1, notifiers, CLOSURE_N_NOTIFIERS (closure) * sizeof (notifiers[0]));
+ g_free (notifiers);
+ }
+ closure->notifiers[0].data = marshal_data;
+ closure->notifiers[0].notify = (GClosureNotify) meta_marshal;
+ SET (closure, meta_marshal, 1);
+}
+
+EXPORT_C void
+g_closure_add_marshal_guards (GClosure *closure,
+ gpointer pre_marshal_data,
+ GClosureNotify pre_marshal_notify,
+ gpointer post_marshal_data,
+ GClosureNotify post_marshal_notify)
+{
+ guint i;
+
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (pre_marshal_notify != NULL);
+ g_return_if_fail (post_marshal_notify != NULL);
+ g_return_if_fail (closure->is_invalid == FALSE);
+ g_return_if_fail (closure->in_marshal == FALSE);
+ g_return_if_fail (closure->n_guards < CLOSURE_MAX_N_GUARDS);
+ closure->notifiers = g_renew (GClosureNotifyData, closure->notifiers, CLOSURE_N_NOTIFIERS (closure) + 2);
+
+ if (closure->n_inotifiers)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers +
+ closure->n_inotifiers + 1)] = closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers + 0)];
+ if (closure->n_inotifiers > 1)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers +
+ closure->n_inotifiers)] = closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers + 1)];
+ if (closure->n_fnotifiers)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers + 1)] = closure->notifiers[CLOSURE_N_MFUNCS (closure) + 0];
+ if (closure->n_fnotifiers > 1)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers)] = closure->notifiers[CLOSURE_N_MFUNCS (closure) + 1];
+ if (closure->n_guards)
+ closure->notifiers[(closure->meta_marshal +
+ closure->n_guards +
+ closure->n_guards + 1)] = closure->notifiers[closure->meta_marshal + closure->n_guards];
+ i = closure->n_guards;
+ closure->notifiers[closure->meta_marshal + i].data = pre_marshal_data;
+ closure->notifiers[closure->meta_marshal + i].notify = pre_marshal_notify;
+ closure->notifiers[closure->meta_marshal + i + 1].data = post_marshal_data;
+ closure->notifiers[closure->meta_marshal + i + 1].notify = post_marshal_notify;
+ INC (closure, n_guards);
+}
+
+EXPORT_C void
+g_closure_add_finalize_notifier (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ guint i;
+
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (notify_func != NULL);
+ g_return_if_fail (closure->n_fnotifiers < CLOSURE_MAX_N_FNOTIFIERS);
+ closure->notifiers = g_renew (GClosureNotifyData, closure->notifiers, CLOSURE_N_NOTIFIERS (closure) + 1);
+ if (closure->n_inotifiers)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers +
+ closure->n_inotifiers)] = closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers + 0)];
+ i = CLOSURE_N_MFUNCS (closure) + closure->n_fnotifiers;
+ closure->notifiers[i].data = notify_data;
+ closure->notifiers[i].notify = notify_func;
+ INC (closure, n_fnotifiers);
+}
+
+EXPORT_C void
+g_closure_add_invalidate_notifier (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ guint i;
+
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (notify_func != NULL);
+ g_return_if_fail (closure->is_invalid == FALSE);
+ g_return_if_fail (closure->n_inotifiers < CLOSURE_MAX_N_INOTIFIERS);
+ closure->notifiers = g_renew (GClosureNotifyData, closure->notifiers, CLOSURE_N_NOTIFIERS (closure) + 1);
+ i = CLOSURE_N_MFUNCS (closure) + closure->n_fnotifiers + closure->n_inotifiers;
+ closure->notifiers[i].data = notify_data;
+ closure->notifiers[i].notify = notify_func;
+ INC (closure, n_inotifiers);
+}
+
+static inline gboolean
+closure_try_remove_inotify (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ GClosureNotifyData *ndata, *nlast;
+
+ nlast = closure->notifiers + CLOSURE_N_NOTIFIERS (closure) - 1;
+ for (ndata = nlast + 1 - closure->n_inotifiers; ndata <= nlast; ndata++)
+ if (ndata->notify == notify_func && ndata->data == notify_data)
+ {
+ DEC (closure, n_inotifiers);
+ if (ndata < nlast)
+ *ndata = *nlast;
+
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static inline gboolean
+closure_try_remove_fnotify (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ GClosureNotifyData *ndata, *nlast;
+
+ nlast = closure->notifiers + CLOSURE_N_NOTIFIERS (closure) - closure->n_inotifiers - 1;
+ for (ndata = nlast + 1 - closure->n_fnotifiers; ndata <= nlast; ndata++)
+ if (ndata->notify == notify_func && ndata->data == notify_data)
+ {
+ DEC (closure, n_fnotifiers);
+ if (ndata < nlast)
+ *ndata = *nlast;
+ if (closure->n_inotifiers)
+ closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers)] = closure->notifiers[(CLOSURE_N_MFUNCS (closure) +
+ closure->n_fnotifiers +
+ closure->n_inotifiers)];
+ return TRUE;
+ }
+ return FALSE;
+}
+
+EXPORT_C GClosure*
+g_closure_ref (GClosure *closure)
+{
+ guint new_ref_count;
+ g_return_val_if_fail (closure != NULL, NULL);
+ g_return_val_if_fail (closure->ref_count > 0, NULL);
+ g_return_val_if_fail (closure->ref_count < CLOSURE_MAX_REF_COUNT, NULL);
+
+ INC_ASSIGN (closure, ref_count, &new_ref_count);
+ g_return_val_if_fail (new_ref_count > 1, NULL);
+
+ return closure;
+}
+
+EXPORT_C void
+g_closure_invalidate (GClosure *closure)
+{
+ g_return_if_fail (closure != NULL);
+
+ if (!closure->is_invalid)
+ {
+ gboolean was_invalid;
+ g_closure_ref (closure); /* preserve floating flag */
+ SWAP (closure, is_invalid, TRUE, &was_invalid);
+ /* invalidate only once */
+ if (!was_invalid)
+ closure_invoke_notifiers (closure, INOTIFY);
+ g_closure_unref (closure);
+ }
+}
+
+EXPORT_C void
+g_closure_unref (GClosure *closure)
+{
+ guint new_ref_count;
+
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (closure->ref_count > 0);
+
+ if (closure->ref_count == 1) /* last unref, invalidate first */
+ g_closure_invalidate (closure);
+
+ DEC_ASSIGN (closure, ref_count, &new_ref_count);
+
+ if (new_ref_count == 0)
+ {
+ closure_invoke_notifiers (closure, FNOTIFY);
+ g_free (closure->notifiers);
+ g_free (closure);
+ }
+}
+
+EXPORT_C void
+g_closure_sink (GClosure *closure)
+{
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (closure->ref_count > 0);
+
+ /* floating is basically a kludge to avoid creating closures
+ * with a ref_count of 0. so the intial ref_count a closure has
+ * is unowned. with invoking g_closure_sink() code may
+ * indicate that it takes over that intiial ref_count.
+ */
+ if (closure->floating)
+ {
+ gboolean was_floating;
+ SWAP (closure, floating, FALSE, &was_floating);
+ /* unref floating flag only once */
+ if (was_floating)
+ g_closure_unref (closure);
+ }
+}
+
+EXPORT_C void
+g_closure_remove_invalidate_notifier (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (notify_func != NULL);
+
+ if (closure->is_invalid && closure->in_inotify && /* account removal of notify_func() while its called */
+ ((gpointer) closure->marshal) == ((gpointer) notify_func) &&
+ closure->data == notify_data)
+ closure->marshal = NULL;
+ else if (!closure_try_remove_inotify (closure, notify_data, notify_func))
+ g_warning (G_STRLOC ": unable to remove uninstalled invalidation notifier: %p (%p)",
+ notify_func, notify_data);
+}
+
+EXPORT_C void
+g_closure_remove_finalize_notifier (GClosure *closure,
+ gpointer notify_data,
+ GClosureNotify notify_func)
+{
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (notify_func != NULL);
+
+ if (closure->is_invalid && !closure->in_inotify && /* account removal of notify_func() while its called */
+ ((gpointer) closure->marshal) == ((gpointer) notify_func) &&
+ closure->data == notify_data)
+ closure->marshal = NULL;
+ else if (!closure_try_remove_fnotify (closure, notify_data, notify_func))
+ g_warning (G_STRLOC ": unable to remove uninstalled finalization notifier: %p (%p)",
+ notify_func, notify_data);
+}
+
+EXPORT_C void
+g_closure_invoke (GClosure *closure,
+ GValue /*out*/ *return_value,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer invocation_hint)
+{
+ g_return_if_fail (closure != NULL);
+
+ g_closure_ref (closure); /* preserve floating flag */
+ if (!closure->is_invalid)
+ {
+ GClosureMarshal marshal;
+ gpointer marshal_data;
+ gboolean in_marshal = closure->in_marshal;
+
+ g_return_if_fail (closure->marshal || closure->meta_marshal);
+
+ SET (closure, in_marshal, TRUE);
+ if (closure->meta_marshal)
+ {
+ marshal_data = closure->notifiers[0].data;
+ marshal = (GClosureMarshal) closure->notifiers[0].notify;
+ }
+ else
+ {
+ marshal_data = NULL;
+ marshal = closure->marshal;
+ }
+ if (!in_marshal)
+ closure_invoke_notifiers (closure, PRE_NOTIFY);
+ marshal (closure,
+ return_value,
+ n_param_values, param_values,
+ invocation_hint,
+ marshal_data);
+ if (!in_marshal)
+ closure_invoke_notifiers (closure, POST_NOTIFY);
+ SET (closure, in_marshal, in_marshal);
+ }
+ g_closure_unref (closure);
+}
+
+EXPORT_C void
+g_closure_set_marshal (GClosure *closure,
+ GClosureMarshal marshal)
+{
+ g_return_if_fail (closure != NULL);
+ g_return_if_fail (marshal != NULL);
+
+ if (closure->marshal && closure->marshal != marshal)
+ g_warning ("attempt to override closure->marshal (%p) with new marshal (%p)",
+ closure->marshal, marshal);
+ else
+ closure->marshal = marshal;
+}
+
+EXPORT_C GClosure*
+g_cclosure_new (GCallback callback_func,
+ gpointer user_data,
+ GClosureNotify destroy_data)
+{
+ GClosure *closure;
+
+ g_return_val_if_fail (callback_func != NULL, NULL);
+
+ closure = g_closure_new_simple (sizeof (GCClosure), user_data);
+ if (destroy_data)
+ g_closure_add_finalize_notifier (closure, user_data, destroy_data);
+ ((GCClosure*) closure)->callback = (gpointer) callback_func;
+
+ return closure;
+}
+
+EXPORT_C GClosure*
+g_cclosure_new_swap (GCallback callback_func,
+ gpointer user_data,
+ GClosureNotify destroy_data)
+{
+ GClosure *closure;
+
+ g_return_val_if_fail (callback_func != NULL, NULL);
+
+ closure = g_closure_new_simple (sizeof (GCClosure), user_data);
+ if (destroy_data)
+ g_closure_add_finalize_notifier (closure, user_data, destroy_data);
+ ((GCClosure*) closure)->callback = (gpointer) callback_func;
+ SET (closure, derivative_flag, TRUE);
+
+ return closure;
+}
+
+static void
+g_type_class_meta_marshal (GClosure *closure,
+ GValue /*out*/ *return_value,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer invocation_hint,
+ gpointer marshal_data)
+{
+ GTypeClass *class;
+ gpointer callback;
+ /* GType itype = (GType) closure->data; */
+ guint offset = GPOINTER_TO_UINT (marshal_data);
+
+ class = G_TYPE_INSTANCE_GET_CLASS (g_value_peek_pointer (param_values + 0), itype, GTypeClass);
+ callback = G_STRUCT_MEMBER (gpointer, class, offset);
+ if (callback)
+ closure->marshal (closure,
+ return_value,
+ n_param_values, param_values,
+ invocation_hint,
+ callback);
+}
+
+static void
+g_type_iface_meta_marshal (GClosure *closure,
+ GValue /*out*/ *return_value,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer invocation_hint,
+ gpointer marshal_data)
+{
+ GTypeClass *class;
+ gpointer callback;
+ GType itype = (GType) closure->data;
+ guint offset = GPOINTER_TO_UINT (marshal_data);
+
+ class = G_TYPE_INSTANCE_GET_INTERFACE (g_value_peek_pointer (param_values + 0), itype, GTypeClass);
+ callback = G_STRUCT_MEMBER (gpointer, class, offset);
+ if (callback)
+ closure->marshal (closure,
+ return_value,
+ n_param_values, param_values,
+ invocation_hint,
+ callback);
+}
+
+EXPORT_C GClosure*
+g_signal_type_cclosure_new (GType itype,
+ guint struct_offset)
+{
+ GClosure *closure;
+
+ g_return_val_if_fail (G_TYPE_IS_CLASSED (itype) || G_TYPE_IS_INTERFACE (itype), NULL);
+ g_return_val_if_fail (struct_offset >= sizeof (GTypeClass), NULL);
+
+ closure = g_closure_new_simple (sizeof (GClosure), (gpointer) itype);
+ if (G_TYPE_IS_INTERFACE (itype))
+ g_closure_set_meta_marshal (closure, GUINT_TO_POINTER (struct_offset), g_type_iface_meta_marshal);
+ else
+ g_closure_set_meta_marshal (closure, GUINT_TO_POINTER (struct_offset), g_type_class_meta_marshal);
+
+ return closure;
+}
+
+#define __G_CLOSURE_C__
+#include "gobjectaliasdef.c"