/* GObject - GLib Type, Object, Parameter and Signal Library
- * Copyright (C) 1998, 1999, 2000 Tim Janik and Red Hat, Inc.
+ * Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
*/
#include "gobject.h"
+/*
+ * MT safe
+ */
#include "gvaluecollector.h"
#include "gsignal.h"
#include "gparamspecs.h"
#include "gvaluetypes.h"
+#include "gobjectnotifyqueue.c"
#include <string.h>
+#include <signal.h>
#define PREALLOC_CPARAMS (8)
-#define DEBUG_OBJECTS
/* --- macros --- */
-#define PARAM_SPEC_PARAM_ID(pspec) (GPOINTER_TO_UINT (g_param_spec_get_qdata ((pspec), quark_property_id)))
+#define PARAM_SPEC_PARAM_ID(pspec) ((pspec)->param_id)
+#define PARAM_SPEC_SET_PARAM_ID(pspec, id) ((pspec)->param_id = (id))
/* --- signals --- */
enum {
- PROPERTIES_CHANGED,
NOTIFY,
LAST_SIGNAL
};
/* --- properties --- */
enum {
- PROP_NONE,
- PROP_DATA,
- PROP_SIGNAL,
- PROP_SWAPPED_SIGNAL,
- PROP_SIGNAL_AFTER,
- PROP_SWAPPED_SIGNAL_AFTER
+ PROP_NONE
};
-/* --- typedefs --- */
-typedef struct _NotifyQueue NotifyQueue;
-
-
/* --- prototypes --- */
static void g_object_base_class_init (GObjectClass *class);
static void g_object_base_class_finalize (GObjectClass *class);
guint n_construct_properties,
GObjectConstructParam *construct_params);
static void g_object_last_unref (GObject *object);
-static void g_object_shutdown (GObject *object);
+static void g_object_real_dispose (GObject *object);
static void g_object_finalize (GObject *object);
static void g_object_do_set_property (GObject *object,
guint property_id,
const GValue *value,
- GParamSpec *pspec,
- const gchar *trailer);
+ GParamSpec *pspec);
static void g_object_do_get_property (GObject *object,
guint property_id,
GValue *value,
- GParamSpec *pspec,
- const gchar *trailer);
+ GParamSpec *pspec);
static void g_value_object_init (GValue *value);
static void g_value_object_free_value (GValue *value);
static void g_value_object_copy_value (const GValue *src_value,
GValue *dest_value);
+static void g_value_object_transform_value (const GValue *src_value,
+ GValue *dest_value);
static gpointer g_value_object_peek_pointer (const GValue *value);
static gchar* g_value_object_collect_value (GValue *value,
- guint nth_value,
- GType *collect_type,
- GTypeCValue *collect_value);
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags);
static gchar* g_value_object_lcopy_value (const GValue *value,
- guint nth_value,
- GType *collect_type,
- GTypeCValue *collect_value);
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags);
static void g_object_dispatch_properties_changed (GObject *object,
guint n_pspecs,
GParamSpec **pspecs);
-static void g_object_properties_changed (GObject *object,
- guint n_pspecs,
- GParamSpec **pspecs);
-static void g_object_notify_property_changed (GObject *object,
- GParamSpec *pspec);
-static inline NotifyQueue* object_freeze_notifies (GObject *object);
-static inline void object_queue_property (GObject *object,
- GParamSpec *pspec,
- NotifyQueue *nqueue);
-static inline void object_thaw_notifies (GObject *object,
- NotifyQueue *nqueue);
static inline void object_get_property (GObject *object,
- GValue *value,
GParamSpec *pspec,
- const gchar *trailer);
+ GValue *value);
static inline void object_set_property (GObject *object,
- GValue *value,
GParamSpec *pspec,
- const gchar *trailer,
- NotifyQueue *nqueue);
-
-
-/* --- structures --- */
-struct _NotifyQueue
-{
- GSList *pspecs;
- guint n_pspecs;
- guint freeze_count;
-};
+ const GValue *value,
+ GObjectNotifyQueue *nqueue);
/* --- variables --- */
-static GQuark quark_notify_queue = 0;
-static GQuark quark_property_id = 0;
-static GQuark quark_closure_array = 0;
-static GParamSpecPool *pspec_pool = NULL;
-static gulong gobject_signals[LAST_SIGNAL] = { 0, };
+static GQuark quark_closure_array = 0;
+static GQuark quark_weak_refs = 0;
+static GParamSpecPool *pspec_pool = NULL;
+static GObjectNotifyContext property_notify_context = { 0, };
+static gulong gobject_signals[LAST_SIGNAL] = { 0, };
/* --- functions --- */
-#ifdef DEBUG_OBJECTS
-
-/* We need an actual method for handling debug keys in GLib.
- * For now, we'll simply use, as a method
- * 'extern gboolean glib_debug_objects'
- */
-gboolean glib_debug_objects = FALSE;
-
-static guint debug_objects_count = 0;
-static GHashTable *debug_objects_ht = NULL;
+#ifdef G_ENABLE_DEBUG
+#define IF_DEBUG(debug_type) if (_g_type_debug_flags & G_TYPE_DEBUG_ ## debug_type)
+G_LOCK_DEFINE_STATIC (debug_objects);
+static volatile GObject *g_trap_object_ref = NULL;
+static guint debug_objects_count = 0;
+static GHashTable *debug_objects_ht = NULL;
static void
debug_objects_foreach (gpointer key,
gpointer value,
gpointer user_data)
{
GObject *object = value;
-
+
g_message ("[%p] stale %s\tref_count=%u",
object,
G_OBJECT_TYPE_NAME (object),
static void
debug_objects_atexit (void)
{
- if (glib_debug_objects)
+ IF_DEBUG (OBJECTS)
{
- if (debug_objects_ht)
- {
- g_message ("stale GObjects: %u", debug_objects_count);
- g_hash_table_foreach (debug_objects_ht, debug_objects_foreach, NULL);
- }
+ G_LOCK (debug_objects);
+ g_message ("stale GObjects: %u", debug_objects_count);
+ g_hash_table_foreach (debug_objects_ht, debug_objects_foreach, NULL);
+ G_UNLOCK (debug_objects);
}
}
-#endif /* DEBUG_OBJECTS */
+#endif /* G_ENABLE_DEBUG */
void
g_object_type_init (void) /* sync with gtype.c */
g_value_object_free_value, /* value_free */
g_value_object_copy_value, /* value_copy */
g_value_object_peek_pointer, /* value_peek_pointer */
- G_VALUE_COLLECT_POINTER, /* collect_type */
+ "p", /* collect_format */
g_value_object_collect_value, /* collect_value */
- G_VALUE_COLLECT_POINTER, /* lcopy_type */
+ "p", /* lcopy_format */
g_value_object_lcopy_value, /* lcopy_value */
};
GType type;
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_OBJECT, "GObject", &info, &finfo, 0);
g_assert (type == G_TYPE_OBJECT);
+ g_value_register_transform_func (G_TYPE_OBJECT, G_TYPE_OBJECT, g_value_object_transform_value);
-#ifdef DEBUG_OBJECTS
- g_atexit (debug_objects_atexit);
-#endif /* DEBUG_OBJECTS */
+#ifdef G_ENABLE_DEBUG
+ IF_DEBUG (OBJECTS)
+ {
+ debug_objects_ht = g_hash_table_new (g_direct_hash, NULL);
+ g_atexit (debug_objects_atexit);
+ }
+#endif /* G_ENABLE_DEBUG */
}
static void
GObjectClass *pclass = g_type_class_peek_parent (class);
/* reset instance specific fields and methods that don't get inherited */
- class->n_property_specs = 0;
- class->property_specs = NULL;
class->construct_properties = pclass ? g_slist_copy (pclass->construct_properties) : NULL;
class->get_property = NULL;
class->set_property = NULL;
static void
g_object_base_class_finalize (GObjectClass *class)
{
- guint i;
+ GList *list, *node;
- g_message ("finallizing base class of %s", G_OBJECT_CLASS_NAME (class));
-
_g_signals_destroy (G_OBJECT_CLASS_TYPE (class));
g_slist_free (class->construct_properties);
class->construct_properties = NULL;
- for (i = 0; i < class->n_property_specs; i++)
+ list = g_param_spec_pool_list_owned (pspec_pool, G_OBJECT_CLASS_TYPE (class));
+ for (node = list; node; node = node->next)
{
- GParamSpec *pspec = class->property_specs[i];
+ GParamSpec *pspec = node->data;
g_param_spec_pool_remove (pspec_pool, pspec);
- g_param_spec_set_qdata (pspec, quark_property_id, NULL);
+ PARAM_SPEC_SET_PARAM_ID (pspec, 0);
g_param_spec_unref (pspec);
}
- class->n_property_specs = 0;
- g_free (class->property_specs);
- class->property_specs = NULL;
+ g_list_free (list);
+}
+
+static void
+g_object_notify_dispatcher (GObject *object,
+ guint n_pspecs,
+ GParamSpec **pspecs)
+{
+ G_OBJECT_GET_CLASS (object)->dispatch_properties_changed (object, n_pspecs, pspecs);
}
static void
g_object_do_class_init (GObjectClass *class)
{
- quark_notify_queue = g_quark_from_static_string ("GObject-notify-queue");
- quark_property_id = g_quark_from_static_string ("GObject-property-id");
+ /* read the comment about typedef struct CArray; on why not to change this quark */
quark_closure_array = g_quark_from_static_string ("GObject-closure-array");
+
+ quark_weak_refs = g_quark_from_static_string ("GObject-weak-references");
pspec_pool = g_param_spec_pool_new (TRUE);
+ property_notify_context.quark_notify_queue = g_quark_from_static_string ("GObject-notify-queue");
+ property_notify_context.dispatcher = g_object_notify_dispatcher;
class->constructor = g_object_constructor;
class->set_property = g_object_do_set_property;
class->get_property = g_object_do_get_property;
- class->shutdown = g_object_shutdown;
+ class->dispose = g_object_real_dispose;
class->finalize = g_object_finalize;
class->dispatch_properties_changed = g_object_dispatch_properties_changed;
- class->properties_changed = g_object_properties_changed;
- class->notify = g_object_notify_property_changed;
-
- g_object_class_install_property (class,
- PROP_DATA,
- g_param_spec_pointer ("data", "Named Data",
- "Named anonymous pointers",
- G_PARAM_READABLE | G_PARAM_WRITABLE));
- g_object_class_install_property (class,
- PROP_SIGNAL,
- g_param_spec_ccallback ("signal", "Signal Connection",
- "Signal connection consisting of a callback function "
- "and a data pointer",
- G_PARAM_WRITABLE));
- g_object_class_install_property (class,
- PROP_SWAPPED_SIGNAL,
- g_param_spec_ccallback ("swapped_signal", "Swapped Signal Connection",
- "Signal connection consisting of a callback function "
- "and a data pointer",
- G_PARAM_WRITABLE));
- g_object_class_install_property (class,
- PROP_SIGNAL_AFTER,
- g_param_spec_ccallback ("signal_after", "Signal After Connection",
- "Signal connection consisting of a callback function "
- "and a data pointer",
- G_PARAM_WRITABLE));
- g_object_class_install_property (class,
- PROP_SWAPPED_SIGNAL_AFTER,
- g_param_spec_ccallback ("swapped_signal_after", "Swapped Signal After Connection",
- "Signal connection consisting of a callback function "
- "and a data pointer",
- G_PARAM_WRITABLE));
- gobject_signals[PROPERTIES_CHANGED] =
- g_signal_newc ("properties_changed",
- G_TYPE_FROM_CLASS (class),
- G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
- G_STRUCT_OFFSET (GObjectClass, properties_changed),
- NULL, /* accumulator */
- g_cclosure_marshal_VOID__UINT_POINTER,
- G_TYPE_NONE,
- 2, G_TYPE_UINT, G_TYPE_POINTER);
+ class->notify = NULL;
+
gobject_signals[NOTIFY] =
- g_signal_newc ("notify",
- G_TYPE_FROM_CLASS (class),
- G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED | G_SIGNAL_NO_HOOKS,
- G_STRUCT_OFFSET (GObjectClass, notify),
- NULL, /* accumulator */
- g_cclosure_marshal_VOID__PARAM,
- G_TYPE_NONE,
- 1, G_TYPE_PARAM);
+ g_signal_new ("notify",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED | G_SIGNAL_NO_HOOKS,
+ G_STRUCT_OFFSET (GObjectClass, notify),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__PARAM,
+ G_TYPE_NONE,
+ 1, G_TYPE_PARAM);
}
+/**
+ * g_object_class_install_property:
+ * @class: a #GObjectClass
+ * @property_id: the id for the new property
+ * @pspec: the #GParamSpec for the new property
+ *
+ * Installs a new property. This is usually done in the class initializer.
+ **/
void
g_object_class_install_property (GObjectClass *class,
guint property_id,
GParamSpec *pspec)
{
- guint i;
-
g_return_if_fail (G_IS_OBJECT_CLASS (class));
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
if (pspec->flags & G_PARAM_WRITABLE)
if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
g_return_if_fail (pspec->flags & G_PARAM_WRITABLE);
- /* expensive paranoia checks ;( */
- for (i = 0; i < class->n_property_specs; i++)
- if (PARAM_SPEC_PARAM_ID (class->property_specs[i]) == property_id)
- {
- g_warning (G_STRLOC ": class `%s' already contains a property `%s' with id %u, "
- "cannot install property `%s'",
- G_OBJECT_CLASS_NAME (class),
- class->property_specs[i]->name,
- property_id,
- pspec->name);
- return;
- }
- if (g_param_spec_pool_lookup (pspec_pool, pspec->name, G_OBJECT_CLASS_TYPE (class), FALSE, NULL))
+ if (g_param_spec_pool_lookup (pspec_pool, pspec->name, G_OBJECT_CLASS_TYPE (class), FALSE))
{
g_warning (G_STRLOC ": class `%s' already contains a property named `%s'",
G_OBJECT_CLASS_NAME (class),
g_param_spec_ref (pspec);
g_param_spec_sink (pspec);
- g_param_spec_set_qdata (pspec, quark_property_id, GUINT_TO_POINTER (property_id));
+ PARAM_SPEC_SET_PARAM_ID (pspec, property_id);
g_param_spec_pool_insert (pspec_pool, pspec, G_OBJECT_CLASS_TYPE (class));
- i = class->n_property_specs++;
- class->property_specs = g_renew (GParamSpec*, class->property_specs, class->n_property_specs);
- class->property_specs[i] = pspec;
if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
class->construct_properties = g_slist_prepend (class->construct_properties, pspec);
/* for property overrides of construct poperties, we have to get rid
* of the overidden inherited construct property
*/
- pspec = g_param_spec_pool_lookup (pspec_pool, pspec->name, g_type_parent (G_OBJECT_CLASS_TYPE (class)), TRUE, NULL);
+ pspec = g_param_spec_pool_lookup (pspec_pool, pspec->name, g_type_parent (G_OBJECT_CLASS_TYPE (class)), TRUE);
if (pspec && pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
class->construct_properties = g_slist_remove (class->construct_properties, pspec);
}
return g_param_spec_pool_lookup (pspec_pool,
property_name,
G_OBJECT_CLASS_TYPE (class),
- TRUE, NULL);
+ TRUE);
}
-static void
-free_notify_queue (gpointer data)
+GParamSpec** /* free result */
+g_object_class_list_properties (GObjectClass *class,
+ guint *n_properties_p)
{
- NotifyQueue *nqueue = data;
-
- g_slist_free (nqueue->pspecs);
- g_free (nqueue);
-}
-
-static inline NotifyQueue*
-object_freeze_notifies (GObject *object)
-{
- NotifyQueue *nqueue;
+ GParamSpec **pspecs;
+ guint n;
- nqueue = g_object_get_qdata (object, quark_notify_queue);
- if (!nqueue)
- {
- nqueue = g_new0 (NotifyQueue, 1);
- g_object_set_qdata_full (object, quark_notify_queue, nqueue, free_notify_queue);
- }
- nqueue->freeze_count++;
+ g_return_val_if_fail (G_IS_OBJECT_CLASS (class), NULL);
- return nqueue;
-}
+ pspecs = g_param_spec_pool_list (pspec_pool,
+ G_OBJECT_CLASS_TYPE (class),
+ &n);
+ if (n_properties_p)
+ *n_properties_p = n;
-static inline void
-object_queue_property (GObject *object,
- GParamSpec *pspec,
- NotifyQueue *nqueue)
-{
- /* we will dedup later */
- nqueue->pspecs = g_slist_prepend (nqueue->pspecs, pspec);
- nqueue->n_pspecs++;
+ return pspecs;
}
static void
object->ref_count = 1;
g_datalist_init (&object->qdata);
- /* freeze object's notification queue, g_object_new_valist() takes care of that */
- object_freeze_notifies (object);
-
-#ifdef DEBUG_OBJECTS
- if (glib_debug_objects)
+ /* freeze object's notification queue, g_object_newv() preserves pairedness */
+ g_object_notify_queue_freeze (object, &property_notify_context);
+
+#ifdef G_ENABLE_DEBUG
+ IF_DEBUG (OBJECTS)
{
- if (!debug_objects_ht)
- debug_objects_ht = g_hash_table_new (g_direct_hash, NULL);
+ G_LOCK (debug_objects);
debug_objects_count++;
g_hash_table_insert (debug_objects_ht, object, object);
+ G_UNLOCK (debug_objects);
}
-#endif /* DEBUG_OBJECTS */
+#endif /* G_ENABLE_DEBUG */
}
static void
g_object_do_set_property (GObject *object,
guint property_id,
const GValue *value,
- GParamSpec *pspec,
- const gchar *trailer)
+ GParamSpec *pspec)
{
- guint i = 0;
-
switch (property_id)
{
- gboolean swapped, after;
- gpointer callback, data;
- case PROP_DATA:
- g_return_if_fail (trailer != NULL);
-
- g_object_set_data (object, trailer, g_value_get_pointer (value));
- break;
- case PROP_SWAPPED_SIGNAL_AFTER:
- i++;
- case PROP_SIGNAL_AFTER:
- i++;
- case PROP_SWAPPED_SIGNAL:
- i++;
- case PROP_SIGNAL:
- after = i > 2;
- swapped = i & 1;
- g_return_if_fail (trailer != NULL);
-
- g_value_get_ccallback (value, &callback, &data);
- g_signal_connect_data (object, trailer,
- callback, data, NULL,
- swapped, after);
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
g_object_do_get_property (GObject *object,
guint property_id,
GValue *value,
- GParamSpec *pspec,
- const gchar *trailer)
+ GParamSpec *pspec)
{
switch (property_id)
{
- case PROP_DATA:
- g_return_if_fail (trailer != NULL);
-
- g_value_set_pointer (value, g_object_get_data (object, trailer));
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
static void
-g_object_last_unref (GObject *object)
+g_object_real_dispose (GObject *object)
{
- g_return_if_fail (object->ref_count > 0);
-
- if (object->ref_count == 1) /* may have been re-referenced meanwhile */
- G_OBJECT_GET_CLASS (object)->shutdown (object);
-
- object->ref_count -= 1;
-
- if (object->ref_count == 0) /* may have been re-referenced meanwhile */
- {
- G_OBJECT_GET_CLASS (object)->finalize (object);
-#ifdef DEBUG_OBJECTS
- if (glib_debug_objects && debug_objects_ht)
- g_assert (g_hash_table_lookup (debug_objects_ht, object) == NULL);
-#endif /* DEBUG_OBJECTS */
- g_type_free_instance ((GTypeInstance*) object);
- }
-}
+ guint ref_count;
-static void
-g_object_shutdown (GObject *object)
-{
- /* this function needs to be always present for unconditional
- * chaining, we also might add some code here later.
- * beware though, subclasses may invoke shutdown() arbitrarily.
+ g_signal_handlers_destroy (object);
+ g_datalist_id_set_data (&object->qdata, quark_closure_array, NULL);
+
+ /* yes, temporarily altering the ref_count is hackish, but that
+ * enforces people not jerking around with weak_ref notifiers
*/
+ ref_count = object->ref_count;
+ object->ref_count = 0;
+ g_datalist_id_set_data (&object->qdata, quark_weak_refs, NULL);
+ object->ref_count = ref_count;
}
static void
g_object_finalize (GObject *object)
{
- g_signal_handlers_destroy (object);
g_datalist_clear (&object->qdata);
-#ifdef DEBUG_OBJECTS
- if (glib_debug_objects)
+#ifdef G_ENABLE_DEBUG
+ IF_DEBUG (OBJECTS)
{
+ G_LOCK (debug_objects);
g_assert (g_hash_table_lookup (debug_objects_ht, object) == object);
-
g_hash_table_remove (debug_objects_ht, object);
debug_objects_count--;
+ G_UNLOCK (debug_objects);
}
-#endif /* DEBUG_OBJECTS */
+#endif /* G_ENABLE_DEBUG */
}
-static inline void
-object_thaw_notifies (GObject *object,
- NotifyQueue *nqueue)
+static void
+g_object_last_unref (GObject *object)
{
- GParamSpec **pspecs;
- GSList *slist;
- guint n_pspecs = 0;
-
- nqueue->freeze_count--;
- if (nqueue->freeze_count)
- return;
g_return_if_fail (object->ref_count > 0);
- pspecs = g_new (GParamSpec*, nqueue->n_pspecs);
- for (slist = nqueue->pspecs; slist; slist = slist->next)
- {
- GParamSpec *pspec = slist->data;
- gint i = 0;
-
- /* dedup, make pspecs in the list unique */
- redo_dedup_check:
- if (pspecs[i] == pspec)
- continue;
- if (++i < n_pspecs)
- goto redo_dedup_check;
-
- pspecs[n_pspecs++] = pspec;
- }
- g_object_set_qdata (object, quark_notify_queue, NULL);
+ if (object->ref_count == 1) /* may have been re-referenced meanwhile */
+ G_OBJECT_GET_CLASS (object)->dispose (object);
- if (n_pspecs)
- G_OBJECT_GET_CLASS (object)->dispatch_properties_changed (object, n_pspecs, pspecs);
+#ifdef G_ENABLE_DEBUG
+ if (g_trap_object_ref == object)
+ G_BREAKPOINT ();
+#endif /* G_ENABLE_DEBUG */
+
+ object->ref_count -= 1;
- g_free (pspecs);
+ if (object->ref_count == 0) /* may have been re-referenced meanwhile */
+ {
+ g_signal_handlers_destroy (object);
+ g_datalist_id_set_data (&object->qdata, quark_weak_refs, NULL);
+ G_OBJECT_GET_CLASS (object)->finalize (object);
+#ifdef G_ENABLE_DEBUG
+ IF_DEBUG (OBJECTS)
+ {
+ /* catch objects not chaining finalize handlers */
+ G_LOCK (debug_objects);
+ g_assert (g_hash_table_lookup (debug_objects_ht, object) == NULL);
+ G_UNLOCK (debug_objects);
+ }
+#endif /* G_ENABLE_DEBUG */
+ g_type_free_instance ((GTypeInstance*) object);
+ }
}
static void
guint n_pspecs,
GParamSpec **pspecs)
{
- g_signal_emit (object, gobject_signals[PROPERTIES_CHANGED], 0, n_pspecs, pspecs);
-}
-
-static void
-g_object_properties_changed (GObject *object,
- guint n_pspecs,
- GParamSpec **pspecs)
-{
guint i;
for (i = 0; i < n_pspecs; i++)
g_signal_emit (object, gobject_signals[NOTIFY], g_quark_from_string (pspecs[i]->name), pspecs[i]);
}
-static void
-g_object_notify_property_changed (GObject *object,
- GParamSpec *pspec)
+void
+g_object_run_dispose (GObject *object)
{
- if (0) /* FIXME */
- g_message ("NOTIFICATION: property `%s' changed on object `%s'",
- pspec->name,
- G_OBJECT_TYPE_NAME (object));
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (object->ref_count > 0);
+
+ g_object_ref (object);
+ G_OBJECT_GET_CLASS (object)->dispose (object);
+ g_object_unref (object);
}
+/**
+ * g_object_freeze_notify:
+ * @object: a #GObject
+ *
+ * Stops emission of "notify" signals on @object. The signals are
+ * queued until g_object_thaw_notify() is called on @object.
+ **/
void
g_object_freeze_notify (GObject *object)
{
return;
g_object_ref (object);
- object_freeze_notifies (object);
+ g_object_notify_queue_freeze (object, &property_notify_context);
g_object_unref (object);
}
+/**
+ * g_object_notify:
+ * @object: a #GObject
+ * @property_name: the name of a property installed on the class of @object.
+ *
+ * Emits a "notify" signal for the property @property_name on @object.
+ **/
void
g_object_notify (GObject *object,
const gchar *property_name)
pspec = g_param_spec_pool_lookup (pspec_pool,
property_name,
G_OBJECT_TYPE (object),
- TRUE, NULL);
+ TRUE);
if (!pspec)
g_warning ("%s: object class `%s' has no property named `%s'",
G_STRLOC,
property_name);
else
{
- NotifyQueue *nqueue = object_freeze_notifies (object);
+ GObjectNotifyQueue *nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
- object_queue_property (object, pspec, nqueue);
- object_thaw_notifies (object, nqueue);
+ g_object_notify_queue_add (object, nqueue, pspec);
+ g_object_notify_queue_thaw (object, nqueue);
}
g_object_unref (object);
}
+/**
+ * g_object_thaw_notify:
+ * @object: a #GObject
+ *
+ * Reverts the effect of a previous call to g_object_freeze_notify().
+ * This causes all queued "notify" signals on @object to be emitted.
+
+ **/
void
g_object_thaw_notify (GObject *object)
{
- NotifyQueue *nqueue;
+ GObjectNotifyQueue *nqueue;
g_return_if_fail (G_IS_OBJECT (object));
if (!object->ref_count)
return;
g_object_ref (object);
- nqueue = g_object_get_qdata (object, quark_notify_queue);
+ nqueue = g_object_notify_queue_from_object (object, &property_notify_context);
if (!nqueue || !nqueue->freeze_count)
g_warning (G_STRLOC ": property-changed notification for %s(%p) is not frozen",
G_OBJECT_TYPE_NAME (object), object);
else
- object_thaw_notifies (object, nqueue);
+ g_object_notify_queue_thaw (object, nqueue);
g_object_unref (object);
}
static inline void
object_get_property (GObject *object,
- GValue *value,
GParamSpec *pspec,
- const gchar *trailer)
+ GValue *value)
{
- GObjectClass *class;
-
- g_return_if_fail (g_type_is_a (G_OBJECT_TYPE (object), pspec->owner_type)); /* paranoid */
+ GObjectClass *class = g_type_class_peek (pspec->owner_type);
- class = g_type_class_peek (pspec->owner_type);
-
- class->get_property (object, PARAM_SPEC_PARAM_ID (pspec), value, pspec, trailer);
+ class->get_property (object, PARAM_SPEC_PARAM_ID (pspec), value, pspec);
}
static inline void
-object_set_property (GObject *object,
- GValue *value,
- GParamSpec *pspec,
- const gchar *trailer,
- NotifyQueue *nqueue)
+object_set_property (GObject *object,
+ GParamSpec *pspec,
+ const GValue *value,
+ GObjectNotifyQueue *nqueue)
{
- GObjectClass *class;
-
- g_return_if_fail (g_type_is_a (G_OBJECT_TYPE (object), pspec->owner_type)); /* paranoid */
-
- class = g_type_class_peek (pspec->owner_type);
-
- class->set_property (object, PARAM_SPEC_PARAM_ID (pspec), value, pspec, trailer);
- object_queue_property (object, pspec, nqueue);
+ GValue tmp_value = { 0, };
+ GObjectClass *class = g_type_class_peek (pspec->owner_type);
+
+ /* provide a copy to work from, convert (if necessary) and validate */
+ g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
+ if (!g_value_transform (value, &tmp_value))
+ g_warning ("unable to set property `%s' of type `%s' from value of type `%s'",
+ pspec->name,
+ g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
+ G_VALUE_TYPE_NAME (value));
+ else if (g_param_value_validate (pspec, &tmp_value) && !(pspec->flags & G_PARAM_LAX_VALIDATION))
+ {
+ gchar *contents = g_strdup_value_contents (value);
+
+ g_warning ("value \"%s\" of type `%s' is invalid for property `%s' of type `%s'",
+ contents,
+ G_VALUE_TYPE_NAME (value),
+ pspec->name,
+ g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
+ g_free (contents);
+ }
+ else
+ {
+ class->set_property (object, PARAM_SPEC_PARAM_ID (pspec), &tmp_value, pspec);
+ g_object_notify_queue_add (object, nqueue, pspec);
+ }
+ g_value_unset (&tmp_value);
}
gpointer
}
gpointer
-g_object_new_valist (GType object_type,
- const gchar *first_property_name,
- va_list var_args)
+g_object_newv (GType object_type,
+ guint n_parameters,
+ GParameter *parameters)
{
- NotifyQueue *nqueue;
+ GObjectConstructParam *cparams, *oparams;
+ GObjectNotifyQueue *nqueue;
GObject *object;
GObjectClass *class;
- const gchar *name;
- GObjectConstructParam *cparams = NULL, *nparams = NULL;
- guint n_cparams = 0, n_nparams = 0;
- GSList *clist;
-
+ GSList *slist;
+ guint n_total_cparams = 0, n_cparams = 0, n_oparams = 0, n_cvalues;
+ GValue *cvalues;
+ GList *clist = NULL;
+ guint i;
+
g_return_val_if_fail (G_TYPE_IS_OBJECT (object_type), NULL);
class = g_type_class_ref (object_type);
- clist = g_slist_copy (class->construct_properties);
+ for (slist = class->construct_properties; slist; slist = slist->next)
+ {
+ clist = g_list_prepend (clist, slist->data);
+ n_total_cparams += 1;
+ }
/* collect parameters, sort into construction and normal ones */
- name = first_property_name;
- while (name)
+ oparams = g_new (GObjectConstructParam, n_parameters);
+ cparams = g_new (GObjectConstructParam, n_total_cparams);
+ for (i = 0; i < n_parameters; i++)
{
- const gchar *trailer = NULL;
- GValue *value;
- GParamSpec *pspec;
- gchar *error = NULL;
-
- pspec = g_param_spec_pool_lookup (pspec_pool,
- name,
- object_type,
- TRUE,
- &trailer);
+ GValue *value = ¶meters[i].value;
+ GParamSpec *pspec = g_param_spec_pool_lookup (pspec_pool,
+ parameters[i].name,
+ object_type,
+ TRUE);
if (!pspec)
{
g_warning ("%s: object class `%s' has no property named `%s'",
G_STRLOC,
g_type_name (object_type),
- name);
- break;
+ parameters[i].name);
+ continue;
}
if (!(pspec->flags & G_PARAM_WRITABLE))
{
G_STRLOC,
pspec->name,
g_type_name (object_type));
- break;
- }
-
- value = g_new (GValue, 1);
- value->g_type = 0;
- g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec));
- G_VALUE_COLLECT (value, var_args, &error);
- if (error)
- {
- g_warning ("%s: %s", G_STRLOC, error);
- g_free (error);
-
- /* we purposely leak the value here, it might not be
- * in a sane state if an error condition occoured
- */
- break;
+ continue;
}
if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
{
- guint i;
+ GList *list = g_list_find (clist, pspec);
- if (!n_cparams || n_cparams >= PREALLOC_CPARAMS)
- cparams = g_renew (GObjectConstructParam, cparams, MAX (n_cparams + 1, PREALLOC_CPARAMS));
+ if (!list)
+ {
+ g_warning (G_STRLOC ": construct property \"%s\" for object `%s' can't be set twice",
+ pspec->name, g_type_name (object_type));
+ continue;
+ }
cparams[n_cparams].pspec = pspec;
cparams[n_cparams].value = value;
- cparams[n_cparams].trailer = trailer;
- for (i = 0; i < n_cparams; i++) /* picky, aren't we? ;) */
- if (cparams[i].pspec == pspec)
- g_warning (G_STRLOC ": construct property \"%s\" for object `%s' is being set twice",
- pspec->name, g_type_name (object_type));
n_cparams++;
- clist = g_slist_remove (clist, pspec); /* FIXME: unique */
+ if (!list->prev)
+ clist = list->next;
+ else
+ list->prev->next = list->next;
+ if (list->next)
+ list->next->prev = list->prev;
+ g_list_free_1 (list);
}
else
{
- if (!n_nparams || n_nparams >= PREALLOC_CPARAMS)
- nparams = g_renew (GObjectConstructParam, nparams, MAX (n_nparams + 1, PREALLOC_CPARAMS));
- nparams[n_nparams].pspec = pspec;
- nparams[n_nparams].value = value;
- nparams[n_nparams].trailer = trailer;
- n_nparams++;
+ oparams[n_oparams].pspec = pspec;
+ oparams[n_oparams].value = value;
+ n_oparams++;
}
-
- name = va_arg (var_args, gchar*);
}
- /* construct object from construction parameters */
+ /* set remaining construction properties to default values */
+ n_cvalues = n_total_cparams - n_cparams;
+ cvalues = g_new (GValue, n_cvalues);
while (clist)
{
- GSList *tmp = clist->next;
+ GList *tmp = clist->next;
GParamSpec *pspec = clist->data;
- GValue *value = g_new (GValue, 1);
+ GValue *value = cvalues + n_total_cparams - n_cparams - 1;
value->g_type = 0;
g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, value);
- if (!n_cparams || n_cparams >= PREALLOC_CPARAMS)
- cparams = g_renew (GObjectConstructParam, cparams, MAX (n_cparams + 1, PREALLOC_CPARAMS));
cparams[n_cparams].pspec = pspec;
cparams[n_cparams].value = value;
- cparams[n_cparams].trailer = NULL;
n_cparams++;
- g_slist_free_1 (clist);
+ g_list_free_1 (clist);
clist = tmp;
}
- object = class->constructor (object_type, n_cparams, cparams);
+
+ /* construct object from construction parameters */
+ object = class->constructor (object_type, n_total_cparams, cparams);
/* free construction values */
- while (n_cparams--)
- {
- g_value_unset (cparams[n_cparams].value);
- g_free (cparams[n_cparams].value);
- }
g_free (cparams);
+ while (n_cvalues--)
+ g_value_unset (cvalues + n_cvalues);
+ g_free (cvalues);
/* release g_object_init() notification queue freeze_count */
- nqueue = object_freeze_notifies (object);
- nqueue->freeze_count--;
+ nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
+ g_object_notify_queue_thaw (object, nqueue);
/* set remaining properties */
- cparams = nparams;
- while (n_nparams--)
- {
- GValue *value = nparams->value;
- GParamSpec *pspec = nparams->pspec;
- const gchar *trailer = nparams++->trailer;
+ for (i = 0; i < n_oparams; i++)
+ object_set_property (object, oparams[i].pspec, oparams[i].value, nqueue);
+ g_free (oparams);
+
+ g_type_class_unref (class);
+
+ /* release our own freeze count and handle notifications */
+ g_object_notify_queue_thaw (object, nqueue);
+
+ return object;
+}
+
+GObject*
+g_object_new_valist (GType object_type,
+ const gchar *first_property_name,
+ va_list var_args)
+{
+ GObjectClass *class;
+ GParameter *params;
+ const gchar *name;
+ GObject *object;
+ guint n_params = 0, n_alloced_params = 16;
+
+ g_return_val_if_fail (G_TYPE_IS_OBJECT (object_type), NULL);
+
+ if (!first_property_name)
+ return g_object_newv (object_type, 0, NULL);
- /* convert if necessary */
- if (!g_type_is_a (G_VALUE_TYPE (value), G_PARAM_SPEC_VALUE_TYPE (pspec)))
+ class = g_type_class_ref (object_type);
+
+ params = g_new (GParameter, n_alloced_params);
+ name = first_property_name;
+ while (name)
+ {
+ gchar *error = NULL;
+ GParamSpec *pspec = g_param_spec_pool_lookup (pspec_pool,
+ name,
+ object_type,
+ TRUE);
+ if (!pspec)
+ {
+ g_warning ("%s: object class `%s' has no property named `%s'",
+ G_STRLOC,
+ g_type_name (object_type),
+ name);
+ break;
+ }
+ if (n_params >= n_alloced_params)
+ {
+ n_alloced_params += 16;
+ params = g_renew (GParameter, params, n_alloced_params);
+ }
+ params[n_params].name = name;
+ params[n_params].value.g_type = 0;
+ g_value_init (¶ms[n_params].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
+ G_VALUE_COLLECT (¶ms[n_params].value, var_args, 0, &error);
+ if (error)
{
- GValue tmp_value = { 0, };
+ g_warning ("%s: %s", G_STRLOC, error);
+ g_free (error);
- g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
- if (!g_value_convert (value, &tmp_value) ||
- g_param_value_validate (pspec, &tmp_value))
- g_warning ("%s: cannot convert `%s' value to property `%s' value of type `%s'",
- G_STRLOC,
- G_VALUE_TYPE_NAME (value),
- pspec->name,
- g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
- else
- object_set_property (object, &tmp_value, pspec, trailer, nqueue);
- g_value_unset (&tmp_value);
+ /* we purposely leak the value here, it might not be
+ * in a sane state if an error condition occoured
+ */
+ break;
}
- else
- object_set_property (object, value, pspec, trailer, nqueue);
-
- g_value_unset (value);
- g_free (value);
+ n_params++;
+ name = va_arg (var_args, gchar*);
}
- g_free (cparams);
+
+ object = g_object_newv (object_type, n_params, params);
+
+ while (n_params--)
+ g_value_unset (¶ms[n_params].value);
+ g_free (params);
g_type_class_unref (class);
- /* release our own freeze count and handle notifications */
- object_thaw_notifies (object, nqueue);
-
return object;
}
/* set construction parameters */
if (n_construct_properties)
{
- NotifyQueue *nqueue = object_freeze_notifies (object);
+ GObjectNotifyQueue *nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
/* set construct properties */
while (n_construct_properties--)
{
GValue *value = construct_params->value;
GParamSpec *pspec = construct_params->pspec;
- const gchar *trailer = construct_params++->trailer;
-
- /* convert if necessary */
- if (!g_type_is_a (G_VALUE_TYPE (value), G_PARAM_SPEC_VALUE_TYPE (pspec)))
- {
- GValue tmp_value = { 0, };
-
- g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
- if (!g_value_convert (value, &tmp_value) ||
- g_param_value_validate (pspec, &tmp_value))
- g_warning ("%s: cannot convert `%s' value to property `%s' value of type `%s'",
- G_STRLOC,
- G_VALUE_TYPE_NAME (value),
- pspec->name,
- g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
- else
- object_set_property (object, &tmp_value, pspec, trailer, nqueue);
- g_value_unset (&tmp_value);
- }
- else
- object_set_property (object, value, pspec, trailer, nqueue);
+
+ construct_params++;
+ object_set_property (object, pspec, value, nqueue);
}
- nqueue->freeze_count--;
+ g_object_notify_queue_thaw (object, nqueue);
/* the notification queue is still frozen from g_object_init(), so
- * we don't need to handle it here, g_object_new_valist() takes
+ * we don't need to handle it here, g_object_newv() takes
* care of that
*/
}
const gchar *first_property_name,
va_list var_args)
{
- NotifyQueue *nqueue;
+ GObjectNotifyQueue *nqueue;
const gchar *name;
g_return_if_fail (G_IS_OBJECT (object));
g_object_ref (object);
- nqueue = object_freeze_notifies (object);
+ nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
name = first_property_name;
while (name)
{
- const gchar *trailer = NULL;
GValue value = { 0, };
GParamSpec *pspec;
gchar *error = NULL;
pspec = g_param_spec_pool_lookup (pspec_pool,
name,
G_OBJECT_TYPE (object),
- TRUE,
- &trailer);
+ TRUE);
if (!pspec)
{
g_warning ("%s: object class `%s' has no property named `%s'",
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
- G_VALUE_COLLECT (&value, var_args, &error);
+ G_VALUE_COLLECT (&value, var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
break;
}
- object_set_property (object, &value, pspec, trailer, nqueue);
-
+ object_set_property (object, pspec, &value, nqueue);
g_value_unset (&value);
name = va_arg (var_args, gchar*);
}
- object_thaw_notifies (object, nqueue);
+ g_object_notify_queue_thaw (object, nqueue);
g_object_unref (object);
}
while (name)
{
- const gchar *trailer = NULL;
GValue value = { 0, };
GParamSpec *pspec;
gchar *error;
pspec = g_param_spec_pool_lookup (pspec_pool,
name,
G_OBJECT_TYPE (object),
- TRUE,
- &trailer);
+ TRUE);
if (!pspec)
{
g_warning ("%s: object class `%s' has no property named `%s'",
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
- object_get_property (object, &value, pspec, trailer);
+ object_get_property (object, pspec, &value);
- G_VALUE_LCOPY (&value, var_args, &error);
+ G_VALUE_LCOPY (&value, var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
-
- /* we purposely leak the value here, it might not be
- * in a sane state if an error condition occoured
- */
+ g_value_unset (&value);
break;
}
const gchar *property_name,
const GValue *value)
{
- NotifyQueue *nqueue;
+ GObjectNotifyQueue *nqueue;
GParamSpec *pspec;
- const gchar *trailer;
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (property_name != NULL);
g_return_if_fail (G_IS_VALUE (value));
g_object_ref (object);
- nqueue = object_freeze_notifies (object);
+ nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
pspec = g_param_spec_pool_lookup (pspec_pool,
property_name,
G_OBJECT_TYPE (object),
- TRUE,
- &trailer);
+ TRUE);
if (!pspec)
g_warning ("%s: object class `%s' has no property named `%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (object),
property_name);
else
- {
- GValue tmp_value = { 0, };
-
- /* provide a copy to work from and convert if necessary */
- g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
-
- if (!g_value_convert (value, &tmp_value) ||
- g_param_value_validate (pspec, &tmp_value))
- g_warning ("%s: cannot convert `%s' value to property `%s' value of type `%s'",
- G_STRLOC,
- G_VALUE_TYPE_NAME (value),
- pspec->name,
- g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
- else
- object_set_property (object, &tmp_value, pspec, trailer, nqueue);
-
- g_value_unset (&tmp_value);
- }
+ object_set_property (object, pspec, value, nqueue);
- object_thaw_notifies (object, nqueue);
+ g_object_notify_queue_thaw (object, nqueue);
g_object_unref (object);
}
GValue *value)
{
GParamSpec *pspec;
- const gchar *trailer;
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (property_name != NULL);
pspec = g_param_spec_pool_lookup (pspec_pool,
property_name,
G_OBJECT_TYPE (object),
- TRUE,
- &trailer);
+ TRUE);
if (!pspec)
g_warning ("%s: object class `%s' has no property named `%s'",
G_STRLOC,
property_name);
else
{
- GValue tmp_value = { 0, };
+ GValue *prop_value, tmp_value = { 0, };
- /* provide a copy to work from and later convert if necessary, so
- * _get_property() implementations need *not* care about freeing values
- * that might be already set in the property to get.
- * (though, at this point, GValue should exclusively be modified
- * through the accessor functions anyways)
+ /* auto-conversion of the callers value type
*/
- g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
-
- if (!g_value_types_exchangable (G_VALUE_TYPE (value), G_PARAM_SPEC_VALUE_TYPE (pspec)))
- g_warning ("%s: can't retrive property `%s' value of type `%s' as value of type `%s'",
- G_STRLOC,
- pspec->name,
- g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
- G_VALUE_TYPE_NAME (value));
+ if (G_VALUE_TYPE (value) == G_PARAM_SPEC_VALUE_TYPE (pspec))
+ {
+ g_value_reset (value);
+ prop_value = value;
+ }
+ else if (!g_value_type_transformable (G_PARAM_SPEC_VALUE_TYPE (pspec), G_VALUE_TYPE (value)))
+ {
+ g_warning ("can't retrieve property `%s' of type `%s' as value of type `%s'",
+ pspec->name,
+ g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
+ G_VALUE_TYPE_NAME (value));
+ g_object_unref (object);
+ return;
+ }
else
{
- object_get_property (object, &tmp_value, pspec, trailer);
- g_value_convert (&tmp_value, value);
- /* g_value_validate (value, pspec); */
+ g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
+ prop_value = &tmp_value;
+ }
+ object_get_property (object, pspec, prop_value);
+ if (prop_value != value)
+ {
+ g_value_transform (prop_value, value);
+ g_value_unset (&tmp_value);
}
-
- g_value_unset (&tmp_value);
}
g_object_unref (object);
}
gpointer
+g_object_connect (gpointer _object,
+ const gchar *signal_spec,
+ ...)
+{
+ GObject *object = _object;
+ va_list var_args;
+
+ g_return_val_if_fail (G_IS_OBJECT (object), NULL);
+ g_return_val_if_fail (object->ref_count > 0, object);
+
+ va_start (var_args, signal_spec);
+ while (signal_spec)
+ {
+ GCallback callback = va_arg (var_args, GCallback);
+ gpointer data = va_arg (var_args, gpointer);
+ gulong sid;
+
+ if (strncmp (signal_spec, "signal::", 8) == 0)
+ sid = g_signal_connect_data (object, signal_spec + 8,
+ callback, data, NULL,
+ 0);
+ else if (strncmp (signal_spec, "object_signal::", 15) == 0)
+ sid = g_signal_connect_object (object, signal_spec + 15,
+ callback, data,
+ 0);
+ else if (strncmp (signal_spec, "swapped_signal::", 16) == 0)
+ sid = g_signal_connect_data (object, signal_spec + 16,
+ callback, data, NULL,
+ G_CONNECT_SWAPPED);
+ else if (strncmp (signal_spec, "swapped_object_signal::", 23) == 0)
+ sid = g_signal_connect_object (object, signal_spec + 23,
+ callback, data,
+ G_CONNECT_SWAPPED);
+ else if (strncmp (signal_spec, "signal_after::", 14) == 0)
+ sid = g_signal_connect_data (object, signal_spec + 14,
+ callback, data, NULL,
+ G_CONNECT_AFTER);
+ else if (strncmp (signal_spec, "object_signal_after::", 21) == 0)
+ sid = g_signal_connect_object (object, signal_spec + 21,
+ callback, data,
+ G_CONNECT_AFTER);
+ else if (strncmp (signal_spec, "swapped_signal_after::", 22) == 0)
+ sid = g_signal_connect_data (object, signal_spec + 22,
+ callback, data, NULL,
+ G_CONNECT_SWAPPED | G_CONNECT_AFTER);
+ else if (strncmp (signal_spec, "swapped_object_signal_after::", 29) == 0)
+ sid = g_signal_connect_object (object, signal_spec + 29,
+ callback, data,
+ G_CONNECT_SWAPPED | G_CONNECT_AFTER);
+ else
+ {
+ g_warning ("%s: invalid signal spec \"%s\"", G_STRLOC, signal_spec);
+ break;
+ }
+ signal_spec = va_arg (var_args, gchar*);
+ }
+ va_end (var_args);
+
+ return object;
+}
+
+void
+g_object_disconnect (gpointer _object,
+ const gchar *signal_spec,
+ ...)
+{
+ GObject *object = _object;
+ va_list var_args;
+
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (object->ref_count > 0);
+
+ va_start (var_args, signal_spec);
+ while (signal_spec)
+ {
+ GCallback callback = va_arg (var_args, GCallback);
+ gpointer data = va_arg (var_args, gpointer);
+ guint sid = 0, detail = 0, mask = 0;
+
+ if (strncmp (signal_spec, "any_signal::", 12) == 0)
+ {
+ signal_spec += 12;
+ mask = G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA;
+ }
+ else if (strcmp (signal_spec, "any_signal") == 0)
+ {
+ signal_spec += 10;
+ mask = G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA;
+ }
+ else
+ {
+ g_warning ("%s: invalid signal spec \"%s\"", G_STRLOC, signal_spec);
+ break;
+ }
+
+ if ((mask & G_SIGNAL_MATCH_ID) &&
+ !g_signal_parse_name (signal_spec, G_OBJECT_TYPE (object), &sid, &detail, FALSE))
+ g_warning ("%s: invalid signal name \"%s\"", G_STRLOC, signal_spec);
+ else if (!g_signal_handlers_disconnect_matched (object, mask | (detail ? G_SIGNAL_MATCH_DETAIL : 0),
+ sid, detail,
+ NULL, (gpointer)callback, data))
+ g_warning (G_STRLOC ": signal handler %p(%p) is not connected", callback, data);
+ signal_spec = va_arg (var_args, gchar*);
+ }
+ va_end (var_args);
+}
+
+typedef struct {
+ GObject *object;
+ guint n_weak_refs;
+ struct {
+ GWeakNotify notify;
+ gpointer data;
+ } weak_refs[1]; /* flexible array */
+} WeakRefStack;
+
+static void
+weak_refs_notify (gpointer data)
+{
+ WeakRefStack *wstack = data;
+ guint i;
+
+ for (i = 0; i < wstack->n_weak_refs; i++)
+ wstack->weak_refs[i].notify (wstack->weak_refs[i].data, wstack->object);
+ g_free (wstack);
+}
+
+void
+g_object_weak_ref (GObject *object,
+ GWeakNotify notify,
+ gpointer data)
+{
+ WeakRefStack *wstack;
+ guint i;
+
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (notify != NULL);
+ g_return_if_fail (object->ref_count >= 1);
+
+ wstack = g_datalist_id_remove_no_notify (&object->qdata, quark_weak_refs);
+ if (wstack)
+ {
+ i = wstack->n_weak_refs++;
+ wstack = g_realloc (wstack, sizeof (*wstack) + sizeof (wstack->weak_refs[0]) * i);
+ }
+ else
+ {
+ wstack = g_renew (WeakRefStack, NULL, 1);
+ wstack->object = object;
+ wstack->n_weak_refs = 1;
+ i = 0;
+ }
+ wstack->weak_refs[i].notify = notify;
+ wstack->weak_refs[i].data = data;
+ g_datalist_id_set_data_full (&object->qdata, quark_weak_refs, wstack, weak_refs_notify);
+}
+
+void
+g_object_weak_unref (GObject *object,
+ GWeakNotify notify,
+ gpointer data)
+{
+ WeakRefStack *wstack;
+ gboolean found_one = FALSE;
+
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (notify != NULL);
+
+ wstack = g_datalist_id_get_data (&object->qdata, quark_weak_refs);
+ if (wstack)
+ {
+ guint i;
+
+ for (i = 0; i < wstack->n_weak_refs; i++)
+ if (wstack->weak_refs[i].notify == notify &&
+ wstack->weak_refs[i].data == data)
+ {
+ found_one = TRUE;
+ wstack->n_weak_refs -= 1;
+ if (i != wstack->n_weak_refs)
+ {
+ wstack->weak_refs[i].notify = wstack->weak_refs[wstack->n_weak_refs].notify;
+ wstack->weak_refs[i].data = wstack->weak_refs[wstack->n_weak_refs].data;
+ }
+ break;
+ }
+ }
+ if (!found_one)
+ g_warning (G_STRLOC ": couldn't find weak ref %p(%p)", notify, data);
+}
+
+void
+g_object_add_weak_pointer (GObject *object,
+ gpointer *weak_pointer_location)
+{
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (weak_pointer_location != NULL);
+
+ g_object_weak_ref (object,
+ (GWeakNotify) g_nullify_pointer,
+ weak_pointer_location);
+}
+
+void
+g_object_remove_weak_pointer (GObject *object,
+ gpointer *weak_pointer_location)
+{
+ g_return_if_fail (G_IS_OBJECT (object));
+ g_return_if_fail (weak_pointer_location != NULL);
+
+ g_object_weak_unref (object,
+ (GWeakNotify) g_nullify_pointer,
+ weak_pointer_location);
+}
+
+gpointer
g_object_ref (gpointer _object)
{
GObject *object = _object;
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
g_return_val_if_fail (object->ref_count > 0, NULL);
+#ifdef G_ENABLE_DEBUG
+ if (g_trap_object_ref == object)
+ G_BREAKPOINT ();
+#endif /* G_ENABLE_DEBUG */
+
object->ref_count += 1;
return object;
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (object->ref_count > 0);
+#ifdef G_ENABLE_DEBUG
+ if (g_trap_object_ref == object)
+ G_BREAKPOINT ();
+#endif /* G_ENABLE_DEBUG */
+
if (object->ref_count > 1)
object->ref_count -= 1;
else
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (quark > 0);
- g_datalist_id_set_data_full (&object->qdata, quark, data, data ? destroy : NULL);
+ g_datalist_id_set_data_full (&object->qdata, quark, data,
+ data ? destroy : (GDestroyNotify) NULL);
}
gpointer
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (key != NULL);
- g_datalist_id_set_data_full (&object->qdata, g_quark_from_string (key), data, data ? destroy : NULL);
+ g_datalist_id_set_data_full (&object->qdata, g_quark_from_string (key), data,
+ data ? destroy : (GDestroyNotify) NULL);
}
gpointer
dest_value->data[0].v_pointer = NULL;
}
+static void
+g_value_object_transform_value (const GValue *src_value,
+ GValue *dest_value)
+{
+ if (src_value->data[0].v_pointer && g_type_is_a (G_OBJECT_TYPE (src_value->data[0].v_pointer), G_VALUE_TYPE (dest_value)))
+ dest_value->data[0].v_pointer = g_object_ref (src_value->data[0].v_pointer);
+ else
+ dest_value->data[0].v_pointer = NULL;
+}
+
static gpointer
g_value_object_peek_pointer (const GValue *value)
{
static gchar*
g_value_object_collect_value (GValue *value,
- guint nth_value,
- GType *collect_type,
- GTypeCValue *collect_value)
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
{
- if (collect_value->v_pointer)
+ if (collect_values[0].v_pointer)
{
- GObject *object = collect_value->v_pointer;
+ GObject *object = collect_values[0].v_pointer;
if (object->g_type_instance.g_class == NULL)
return g_strconcat ("invalid unclassed object pointer for value type `",
G_VALUE_TYPE_NAME (value),
"'",
NULL);
- else if (!g_type_is_a (G_OBJECT_TYPE (object), G_VALUE_TYPE (value)))
+ else if (!g_value_type_compatible (G_OBJECT_TYPE (object), G_VALUE_TYPE (value)))
return g_strconcat ("invalid object type `",
G_OBJECT_TYPE_NAME (object),
"' for value type `",
G_VALUE_TYPE_NAME (value),
"'",
NULL);
+ /* never honour G_VALUE_NOCOPY_CONTENTS for ref-counted types */
value->data[0].v_pointer = g_object_ref (object);
}
else
value->data[0].v_pointer = NULL;
- *collect_type = 0;
return NULL;
}
static gchar*
g_value_object_lcopy_value (const GValue *value,
- guint nth_value,
- GType *collect_type,
- GTypeCValue *collect_value)
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
{
- GObject **object_p = collect_value->v_pointer;
+ GObject **object_p = collect_values[0].v_pointer;
if (!object_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
+
+ if (!value->data[0].v_pointer)
+ *object_p = NULL;
+ else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
+ *object_p = value->data[0].v_pointer;
+ else
+ *object_p = g_object_ref (value->data[0].v_pointer);
- *object_p = value->data[0].v_pointer ? g_object_ref (value->data[0].v_pointer) : NULL;
-
- *collect_type = 0;
return NULL;
}
void
-g_value_set_object (GValue *value,
- GObject *v_object)
+g_value_set_object (GValue *value,
+ gpointer v_object)
{
- g_return_if_fail (G_IS_VALUE_OBJECT (value));
+ g_return_if_fail (G_VALUE_HOLDS_OBJECT (value));
if (value->data[0].v_pointer)
{
if (v_object)
{
g_return_if_fail (G_IS_OBJECT (v_object));
- g_return_if_fail (g_type_is_a (G_OBJECT_TYPE (v_object), G_VALUE_TYPE (value)));
+ g_return_if_fail (g_value_type_compatible (G_OBJECT_TYPE (v_object), G_VALUE_TYPE (value)));
value->data[0].v_pointer = v_object;
g_object_ref (value->data[0].v_pointer);
}
}
-GObject*
+void
+g_value_set_object_take_ownership (GValue *value,
+ gpointer v_object)
+{
+ g_return_if_fail (G_VALUE_HOLDS_OBJECT (value));
+
+ if (value->data[0].v_pointer)
+ {
+ g_object_unref (value->data[0].v_pointer);
+ value->data[0].v_pointer = NULL;
+ }
+
+ if (v_object)
+ {
+ g_return_if_fail (G_IS_OBJECT (v_object));
+ g_return_if_fail (g_value_type_compatible (G_OBJECT_TYPE (v_object), G_VALUE_TYPE (value)));
+
+ value->data[0].v_pointer = v_object; /* we take over the reference count */
+ }
+}
+
+gpointer
g_value_get_object (const GValue *value)
{
- g_return_val_if_fail (G_IS_VALUE_OBJECT (value), NULL);
+ g_return_val_if_fail (G_VALUE_HOLDS_OBJECT (value), NULL);
return value->data[0].v_pointer;
}
GObject*
g_value_dup_object (const GValue *value)
{
- g_return_val_if_fail (G_IS_VALUE_OBJECT (value), NULL);
+ g_return_val_if_fail (G_VALUE_HOLDS_OBJECT (value), NULL);
return value->data[0].v_pointer ? g_object_ref (value->data[0].v_pointer) : NULL;
}
-guint
-g_signal_connect_object (gpointer instance,
- const gchar *detailed_signal,
- GCallback c_handler,
- gpointer gobject,
- gboolean swapped,
- gboolean after)
+/**
+ * g_signal_connect_object:
+ * @instance: the instance to connect to.
+ * @detailed_signal: a string of the form "signal-name::detail".
+ * @c_handler: the #GCallback to connect.
+ * @gobject: the object to pass as data to @c_handler.
+ * @connect_flags: a combination of #GConnnectFlags.
+ *
+ * This is similar to g_signal_connect_data(), but uses a closure which
+ * ensures that the object stays alive during the call to @c_handler.
+ *
+ * Return value: the handler id.
+ **/
+gulong
+g_signal_connect_object (gpointer instance,
+ const gchar *detailed_signal,
+ GCallback c_handler,
+ gpointer gobject,
+ GConnectFlags connect_flags)
{
g_return_val_if_fail (G_TYPE_CHECK_INSTANCE (instance), 0);
g_return_val_if_fail (detailed_signal != NULL, 0);
g_return_val_if_fail (G_IS_OBJECT (gobject), 0);
- closure = (swapped ? g_cclosure_new_object_swap : g_cclosure_new_object) (c_handler, gobject);
+ closure = ((connect_flags & G_CONNECT_SWAPPED) ? g_cclosure_new_object_swap : g_cclosure_new_object) (c_handler, gobject);
- return g_signal_connect_closure (instance, detailed_signal, closure, after);
+ return g_signal_connect_closure (instance, detailed_signal, closure, connect_flags & G_CONNECT_AFTER);
}
else
- return g_signal_connect_data (instance, detailed_signal, c_handler, NULL, NULL, swapped, after);
+ return g_signal_connect_data (instance, detailed_signal, c_handler, NULL, NULL, connect_flags);
}
typedef struct {
guint n_closures;
GClosure *closures[1]; /* flexible array */
} CArray;
+/* don't change this structure without supplying an accessor for
+ * watched closures, e.g.:
+ * GSList* g_object_list_watched_closures (GObject *object)
+ * {
+ * CArray *carray;
+ * g_return_val_if_fail (G_IS_OBJECT (object), NULL);
+ * carray = g_object_get_data (object, "GObject-closure-array");
+ * if (carray)
+ * {
+ * GSList *slist = NULL;
+ * guint i;
+ * for (i = 0; i < carray->n_closures; i++)
+ * slist = g_slist_prepend (slist, carray->closures[i]);
+ * return slist;
+ * }
+ * return NULL;
+ * }
+ */
static void
object_remove_closure (gpointer data,
/* removing object_remove_closure() upfront is probably faster than
* letting it fiddle with quark_closure_array which is empty anyways
*/
- g_closure_remove_inotify (closure, object, object_remove_closure);
+ g_closure_remove_invalidate_notifier (closure, object, object_remove_closure);
g_closure_invalidate (closure);
}
g_free (carray);
GClosure *closure)
{
CArray *carray;
+ guint i;
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (closure != NULL);
g_return_if_fail (closure->in_marshal == FALSE);
g_return_if_fail (object->ref_count > 0); /* this doesn't work on finalizing objects */
- g_closure_add_inotify (closure, object, object_remove_closure);
+ g_closure_add_invalidate_notifier (closure, object, object_remove_closure);
g_closure_add_marshal_guards (closure,
object, (GClosureNotify) g_object_ref,
object, (GClosureNotify) g_object_unref);
- carray = g_object_steal_qdata (object, quark_closure_array);
+ carray = g_datalist_id_remove_no_notify (&object->qdata, quark_closure_array);
if (!carray)
{
carray = g_renew (CArray, NULL, 1);
carray->object = object;
carray->n_closures = 1;
- carray->closures[0] = closure;
- g_object_set_qdata_full (object, quark_closure_array, carray, destroy_closure_array);
+ i = 0;
}
else
{
- guint i = carray->n_closures++;
-
+ i = carray->n_closures++;
carray = g_realloc (carray, sizeof (*carray) + sizeof (carray->closures[0]) * i);
- carray->closures[i] = closure;
- g_object_set_qdata_full (object, quark_closure_array, carray, destroy_closure_array);
}
+ carray->closures[i] = closure;
+ g_datalist_id_set_data_full (&object->qdata, quark_closure_array, carray, destroy_closure_array);
}
GClosure*
GClosure*
g_cclosure_new_object (GCallback callback_func,
- gpointer _object)
+ GObject *object)
{
- GObject *object = _object;
GClosure *closure;
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
GClosure*
g_cclosure_new_object_swap (GCallback callback_func,
- gpointer _object)
+ GObject *object)
{
- GObject *object = _object;
GClosure *closure;
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
projects / platform / upstream / glib.git / blobdiff