/* GObject - GLib Type, Object, Parameter and Signal Library
- * Copyright (C) 1997, 1998, 1999, 2000 Tim Janik and Red Hat, Inc.
+ * Copyright (C) 1997-1999, 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
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
+
+/*
+ * MT safe
+ */
+
#include "gparam.h"
+#include "gvaluecollector.h"
#include <string.h>
/* --- defines --- */
-#define G_PARAM_SPEC_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_PARAM, GParamSpecClass))
+#define G_PARAM_USER_MASK (~0 << G_PARAM_USER_SHIFT)
+#define PSPEC_APPLIES_TO_VALUE(pspec, value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_PARAM_SPEC_VALUE_TYPE (pspec)))
+#define G_SLOCK(mutex) g_static_mutex_lock (mutex)
+#define G_SUNLOCK(mutex) g_static_mutex_unlock (mutex)
/* --- prototypes --- */
static void g_param_spec_class_base_finalize (GParamSpecClass *class);
static void g_param_spec_class_init (GParamSpecClass *class,
gpointer class_data);
-static void g_param_spec_init (GParamSpec *pspec);
+static void g_param_spec_init (GParamSpec *pspec,
+ GParamSpecClass *class);
static void g_param_spec_finalize (GParamSpec *pspec);
+static void value_param_init (GValue *value);
+static void value_param_free_value (GValue *value);
+static void value_param_copy_value (const GValue *src_value,
+ GValue *dest_value);
+static void value_param_transform_value (const GValue *src_value,
+ GValue *dest_value);
+static gpointer value_param_peek_pointer (const GValue *value);
+static gchar* value_param_collect_value (GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags);
+static gchar* value_param_lcopy_value (const GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags);
+
+
+/* --- variables --- */
+static GQuark quark_floating = 0;
+G_LOCK_DEFINE_STATIC (pspec_ref_count);
/* --- functions --- */
G_TYPE_FLAG_DERIVABLE |
G_TYPE_FLAG_DEEP_DERIVABLE),
};
+ static const GTypeValueTable param_value_table = {
+ value_param_init, /* value_init */
+ value_param_free_value, /* value_free */
+ value_param_copy_value, /* value_copy */
+ value_param_peek_pointer, /* value_peek_pointer */
+ "p", /* collect_format */
+ value_param_collect_value, /* collect_value */
+ "p", /* lcopy_format */
+ value_param_lcopy_value, /* lcopy_value */
+ };
static const GTypeInfo param_spec_info = {
sizeof (GParamSpecClass),
0, /* n_preallocs */
(GInstanceInitFunc) g_param_spec_init,
- NULL, /* value_table */
+ ¶m_value_table,
};
GType type;
- type = g_type_register_fundamental (G_TYPE_PARAM, "GParam", ¶m_spec_info, &finfo);
+ type = g_type_register_fundamental (G_TYPE_PARAM, "GParam", ¶m_spec_info, &finfo, G_TYPE_FLAG_ABSTRACT);
g_assert (type == G_TYPE_PARAM);
+ g_value_register_transform_func (G_TYPE_PARAM, G_TYPE_PARAM, value_param_transform_value);
}
static void
g_param_spec_class_init (GParamSpecClass *class,
gpointer class_data)
{
+ quark_floating = g_quark_from_static_string ("GParamSpec-floating");
+
class->value_type = G_TYPE_NONE;
class->finalize = g_param_spec_finalize;
class->value_set_default = NULL;
}
static void
-g_param_spec_init (GParamSpec *pspec)
+g_param_spec_init (GParamSpec *pspec,
+ GParamSpecClass *class)
{
pspec->name = NULL;
- pspec->nick = NULL;
- pspec->blurb = NULL;
+ pspec->_nick = NULL;
+ pspec->_blurb = NULL;
pspec->flags = 0;
+ pspec->value_type = class->value_type;
pspec->owner_type = 0;
pspec->qdata = NULL;
pspec->ref_count = 1;
+ pspec->param_id = 0;
+ g_datalist_id_set_data (&pspec->qdata, quark_floating, GUINT_TO_POINTER (TRUE));
}
static void
g_datalist_clear (&pspec->qdata);
g_free (pspec->name);
- g_free (pspec->nick);
- g_free (pspec->blurb);
+ g_free (pspec->_nick);
+ g_free (pspec->_blurb);
g_type_free_instance ((GTypeInstance*) pspec);
}
g_param_spec_ref (GParamSpec *pspec)
{
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL);
- g_return_val_if_fail (pspec->ref_count > 0, NULL);
-
- pspec->ref_count += 1;
+ G_LOCK (pspec_ref_count);
+ if (pspec->ref_count > 0)
+ {
+ pspec->ref_count += 1;
+ G_UNLOCK (pspec_ref_count);
+ }
+ else
+ {
+ G_UNLOCK (pspec_ref_count);
+ g_return_val_if_fail (pspec->ref_count > 0, NULL);
+ }
+
return pspec;
}
g_param_spec_unref (GParamSpec *pspec)
{
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
- g_return_if_fail (pspec->ref_count > 0);
- pspec->ref_count -= 1;
- if (pspec->ref_count == 0)
- G_PARAM_SPEC_GET_CLASS (pspec)->finalize (pspec);
+ G_LOCK (pspec_ref_count);
+ if (pspec->ref_count > 0)
+ {
+ gboolean need_finalize;
+
+ /* sync with _sink */
+ pspec->ref_count -= 1;
+ need_finalize = pspec->ref_count == 0;
+ G_UNLOCK (pspec_ref_count);
+ if (need_finalize)
+ G_PARAM_SPEC_GET_CLASS (pspec)->finalize (pspec);
+ }
+ else
+ {
+ G_UNLOCK (pspec_ref_count);
+ g_return_if_fail (pspec->ref_count > 0);
+ }
+}
+
+void
+g_param_spec_sink (GParamSpec *pspec)
+{
+ g_return_if_fail (G_IS_PARAM_SPEC (pspec));
+
+ G_LOCK (pspec_ref_count);
+ if (pspec->ref_count > 0)
+ {
+ if (g_datalist_id_remove_no_notify (&pspec->qdata, quark_floating))
+ {
+ /* sync with _unref */
+ if (pspec->ref_count > 1)
+ pspec->ref_count -= 1;
+ else
+ {
+ G_UNLOCK (pspec_ref_count);
+ g_param_spec_unref (pspec);
+
+ return;
+ }
+ }
+ G_UNLOCK (pspec_ref_count);
+ }
+ else
+ {
+ G_UNLOCK (pspec_ref_count);
+ g_return_if_fail (pspec->ref_count > 0);
+ }
+}
+
+G_CONST_RETURN gchar*
+g_param_spec_get_name (GParamSpec *pspec)
+{
+ g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL);
+
+ return pspec->name;
+}
+
+G_CONST_RETURN gchar*
+g_param_spec_get_nick (GParamSpec *pspec)
+{
+ g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL);
+
+ return pspec->_nick ? pspec->_nick : pspec->name;
+}
+
+G_CONST_RETURN gchar*
+g_param_spec_get_blurb (GParamSpec *pspec)
+{
+ g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL);
+
+ return pspec->_blurb;
+}
+
+static void
+canonalize_key (gchar *key)
+{
+ gchar *p;
+
+ for (p = key; *p != 0; p++)
+ {
+ gchar c = *p;
+
+ if (c != '-' &&
+ (c < '0' || c > '9') &&
+ (c < 'A' || c > 'Z') &&
+ (c < 'a' || c > 'z'))
+ *p = '-';
+ }
}
gpointer
GParamFlags flags)
{
GParamSpec *pspec;
-
+
g_return_val_if_fail (G_TYPE_IS_PARAM (param_type) && param_type != G_TYPE_PARAM, NULL);
g_return_val_if_fail (name != NULL, NULL);
-
+ g_return_val_if_fail ((name[0] >= 'A' && name[0] <= 'Z') || (name[0] >= 'a' && name[0] <= 'z'), NULL);
+
pspec = (gpointer) g_type_create_instance (param_type);
pspec->name = g_strdup (name);
- g_strcanon (pspec->name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
- pspec->nick = g_strdup (nick ? nick : pspec->name);
- pspec->blurb = g_strdup (blurb);
+ canonalize_key (pspec->name);
+ pspec->_nick = g_strdup (nick);
+ pspec->_blurb = g_strdup (blurb);
pspec->flags = (flags & G_PARAM_USER_MASK) | (flags & G_PARAM_MASK);
-
+
return pspec;
}
{
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
g_return_if_fail (G_IS_VALUE (value));
- g_return_if_fail (G_IS_PARAM_VALUE (pspec, value));
+ g_return_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, value));
g_value_reset (value);
G_PARAM_SPEC_GET_CLASS (pspec)->value_set_default (pspec, value);
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
- g_return_val_if_fail (G_IS_PARAM_VALUE (pspec, value), FALSE);
+ g_return_val_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, value), FALSE);
g_value_init (&dflt_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
G_PARAM_SPEC_GET_CLASS (pspec)->value_set_default (pspec, &dflt_value);
{
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
- g_return_val_if_fail (G_IS_PARAM_VALUE (pspec, value), FALSE);
+ g_return_val_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, value), FALSE);
if (G_PARAM_SPEC_GET_CLASS (pspec)->value_validate)
{
return FALSE;
}
+gboolean
+g_param_value_convert (GParamSpec *pspec,
+ const GValue *src_value,
+ GValue *dest_value,
+ gboolean strict_validation)
+{
+ GValue tmp_value = { 0, };
+
+ g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
+ g_return_val_if_fail (G_IS_VALUE (src_value), FALSE);
+ g_return_val_if_fail (G_IS_VALUE (dest_value), FALSE);
+ g_return_val_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, dest_value), FALSE);
+
+ /* better leave dest_value untouched when returning FALSE */
+
+ g_value_init (&tmp_value, G_VALUE_TYPE (dest_value));
+ if (g_value_transform (src_value, &tmp_value) &&
+ (!g_param_value_validate (pspec, &tmp_value) || !strict_validation))
+ {
+ g_value_unset (dest_value);
+
+ /* values are relocatable */
+ memcpy (dest_value, &tmp_value, sizeof (tmp_value));
+
+ return TRUE;
+ }
+ else
+ {
+ g_value_unset (&tmp_value);
+
+ return FALSE;
+ }
+}
+
gint
g_param_values_cmp (GParamSpec *pspec,
const GValue *value1,
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), 0);
g_return_val_if_fail (G_IS_VALUE (value1), 0);
g_return_val_if_fail (G_IS_VALUE (value2), 0);
- g_return_val_if_fail (G_IS_PARAM_VALUE (pspec, value1), 0);
- g_return_val_if_fail (G_IS_PARAM_VALUE (pspec, value2), 0);
+ g_return_val_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, value1), 0);
+ g_return_val_if_fail (PSPEC_APPLIES_TO_VALUE (pspec, value2), 0);
cmp = G_PARAM_SPEC_GET_CLASS (pspec)->values_cmp (pspec, value1, value2);
return CLAMP (cmp, -1, 1);
}
+static void
+value_param_init (GValue *value)
+{
+ value->data[0].v_pointer = NULL;
+}
+
+static void
+value_param_free_value (GValue *value)
+{
+ if (value->data[0].v_pointer)
+ g_param_spec_unref (value->data[0].v_pointer);
+}
+
+static void
+value_param_copy_value (const GValue *src_value,
+ GValue *dest_value)
+{
+ if (src_value->data[0].v_pointer)
+ dest_value->data[0].v_pointer = g_param_spec_ref (src_value->data[0].v_pointer);
+ else
+ dest_value->data[0].v_pointer = NULL;
+}
+
+static void
+value_param_transform_value (const GValue *src_value,
+ GValue *dest_value)
+{
+ if (src_value->data[0].v_pointer &&
+ g_type_is_a (G_PARAM_SPEC_TYPE (dest_value->data[0].v_pointer), G_VALUE_TYPE (dest_value)))
+ dest_value->data[0].v_pointer = g_param_spec_ref (src_value->data[0].v_pointer);
+ else
+ dest_value->data[0].v_pointer = NULL;
+}
+
+static gpointer
+value_param_peek_pointer (const GValue *value)
+{
+ return value->data[0].v_pointer;
+}
+
+static gchar*
+value_param_collect_value (GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
+{
+ if (collect_values[0].v_pointer)
+ {
+ GParamSpec *param = collect_values[0].v_pointer;
+
+ if (param->g_type_instance.g_class == NULL)
+ return g_strconcat ("invalid unclassed param spec pointer for value type `",
+ G_VALUE_TYPE_NAME (value),
+ "'",
+ NULL);
+ else if (!g_value_type_compatible (G_PARAM_SPEC_TYPE (param), G_VALUE_TYPE (value)))
+ return g_strconcat ("invalid param spec type `",
+ G_PARAM_SPEC_TYPE_NAME (param),
+ "' for value type `",
+ G_VALUE_TYPE_NAME (value),
+ "'",
+ NULL);
+ value->data[0].v_pointer = g_param_spec_ref (param);
+ }
+ else
+ value->data[0].v_pointer = NULL;
+
+ return NULL;
+}
+
+static gchar*
+value_param_lcopy_value (const GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
+{
+ GParamSpec **param_p = collect_values[0].v_pointer;
+
+ if (!param_p)
+ return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
+
+ if (!value->data[0].v_pointer)
+ *param_p = NULL;
+ else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
+ *param_p = value->data[0].v_pointer;
+ else
+ *param_p = g_param_spec_ref (value->data[0].v_pointer);
+
+ return NULL;
+}
+
+
+/* --- param spec pool --- */
+struct _GParamSpecPool
+{
+ GStaticMutex smutex;
+ gboolean type_prefixing;
+ GHashTable *hash_table;
+};
+
static guint
-param_spec_hash (gconstpointer key_spec)
+param_spec_pool_hash (gconstpointer key_spec)
{
const GParamSpec *key = key_spec;
const gchar *p;
return h;
}
-static gint
-param_spec_equals (gconstpointer key_spec_1,
- gconstpointer key_spec_2)
+static gboolean
+param_spec_pool_equals (gconstpointer key_spec_1,
+ gconstpointer key_spec_2)
{
const GParamSpec *key1 = key_spec_1;
const GParamSpec *key2 = key_spec_2;
strcmp (key1->name, key2->name) == 0);
}
-GHashTable*
-g_param_spec_hash_table_new (void)
+GParamSpecPool*
+g_param_spec_pool_new (gboolean type_prefixing)
{
- return g_hash_table_new (param_spec_hash, param_spec_equals);
+ static GStaticMutex init_smutex = G_STATIC_MUTEX_INIT;
+ GParamSpecPool *pool = g_new (GParamSpecPool, 1);
+
+ memcpy (&pool->smutex, &init_smutex, sizeof (init_smutex));
+ pool->type_prefixing = type_prefixing != FALSE;
+ pool->hash_table = g_hash_table_new (param_spec_pool_hash, param_spec_pool_equals);
+
+ return pool;
}
void
-g_param_spec_hash_table_insert (GHashTable *hash_table,
- GParamSpec *pspec,
- GType owner_type)
+g_param_spec_pool_insert (GParamSpecPool *pool,
+ GParamSpec *pspec,
+ GType owner_type)
{
- g_return_if_fail (hash_table != NULL);
- g_return_if_fail (G_IS_PARAM_SPEC (pspec));
- g_return_if_fail (pspec->name != NULL);
- if (pspec->owner_type != owner_type)
- g_return_if_fail (pspec->owner_type == 0);
-
- if (strchr (pspec->name, ':'))
- g_warning (G_STRLOC ": parameter name `%s' contains field-delimeter",
- pspec->name);
- else
+ gchar *p;
+
+ if (pool && pspec && owner_type > 0 && pspec->owner_type == 0)
{
+ G_SLOCK (&pool->smutex);
+ for (p = pspec->name; *p; p++)
+ {
+ if (!strchr (G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-_", *p))
+ {
+ g_warning (G_STRLOC ": pspec name \"%s\" contains invalid characters", pspec->name);
+ G_SUNLOCK (&pool->smutex);
+ return;
+ }
+ }
+
pspec->owner_type = owner_type;
- g_hash_table_insert (hash_table, pspec, pspec);
+ g_param_spec_ref (pspec);
+ g_hash_table_insert (pool->hash_table, pspec, pspec);
+ G_SUNLOCK (&pool->smutex);
+ }
+ else
+ {
+ g_return_if_fail (pool != NULL);
+ g_return_if_fail (pspec);
+ g_return_if_fail (owner_type > 0);
+ g_return_if_fail (pspec->owner_type == 0);
}
}
void
-g_param_spec_hash_table_remove (GHashTable *hash_table,
- GParamSpec *pspec)
+g_param_spec_pool_remove (GParamSpecPool *pool,
+ GParamSpec *pspec)
{
- g_return_if_fail (hash_table != NULL);
- g_return_if_fail (G_IS_PARAM_SPEC (pspec));
+ if (pool && pspec)
+ {
+ G_SLOCK (&pool->smutex);
+ if (g_hash_table_remove (pool->hash_table, pspec))
+ g_param_spec_unref (pspec);
+ else
+ g_warning (G_STRLOC ": attempt to remove unknown pspec `%s' from pool", pspec->name);
+ G_SUNLOCK (&pool->smutex);
+ }
+ else
+ {
+ g_return_if_fail (pool != NULL);
+ g_return_if_fail (pspec);
+ }
+}
- g_assert (g_param_spec_hash_table_lookup (hash_table, pspec->name, pspec->owner_type, FALSE, NULL) != NULL); /* FIXME: paranoid */
+static inline GParamSpec*
+param_spec_ht_lookup (GHashTable *hash_table,
+ const gchar *param_name,
+ GType owner_type,
+ gboolean walk_ancestors)
+{
+ GParamSpec key, *pspec;
- g_hash_table_remove (hash_table, pspec);
- g_assert (g_param_spec_hash_table_lookup (hash_table, pspec->name, pspec->owner_type, FALSE, NULL) == NULL); /* FIXME: paranoid */
- pspec->owner_type = 0;
+ key.owner_type = owner_type;
+ key.name = (gchar*) param_name;
+ if (walk_ancestors)
+ do
+ {
+ pspec = g_hash_table_lookup (hash_table, &key);
+ if (pspec)
+ return pspec;
+ key.owner_type = g_type_parent (key.owner_type);
+ }
+ while (key.owner_type);
+ else
+ pspec = g_hash_table_lookup (hash_table, &key);
+
+ if (!pspec)
+ {
+ /* try canonicalized form */
+ key.name = g_strdup (param_name);
+ key.owner_type = owner_type;
+
+ canonalize_key (key.name);
+ if (walk_ancestors)
+ do
+ {
+ pspec = g_hash_table_lookup (hash_table, &key);
+ if (pspec)
+ {
+ g_free (key.name);
+ return pspec;
+ }
+ key.owner_type = g_type_parent (key.owner_type);
+ }
+ while (key.owner_type);
+ else
+ pspec = g_hash_table_lookup (hash_table, &key);
+ g_free (key.name);
+ }
+
+ return pspec;
}
GParamSpec*
-g_param_spec_hash_table_lookup (GHashTable *hash_table,
- const gchar *param_name,
- GType owner_type,
- gboolean try_ancestors,
- const gchar **trailer)
+g_param_spec_pool_lookup (GParamSpecPool *pool,
+ const gchar *param_name,
+ GType owner_type,
+ gboolean walk_ancestors)
{
GParamSpec *pspec;
- GParamSpec key;
gchar *delim;
-
- g_return_val_if_fail (hash_table != NULL, NULL);
- g_return_val_if_fail (param_name != NULL, NULL);
-
- key.owner_type = owner_type;
- delim = strchr (param_name, ':');
- if (delim)
- key.name = g_strndup (param_name, delim - param_name);
- else
- key.name = g_strdup (param_name);
- g_strcanon (key.name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
- if (trailer)
- *trailer = delim;
-
- pspec = g_hash_table_lookup (hash_table, &key);
- if (!pspec && try_ancestors)
+ if (!pool || !param_name)
+ {
+ g_return_val_if_fail (pool != NULL, NULL);
+ g_return_val_if_fail (param_name != NULL, NULL);
+ }
+
+ G_SLOCK (&pool->smutex);
+
+ delim = pool->type_prefixing ? strchr (param_name, ':') : NULL;
+
+ /* try quick and away, i.e. without prefix */
+ if (!delim)
+ {
+ pspec = param_spec_ht_lookup (pool->hash_table, param_name, owner_type, walk_ancestors);
+ G_SUNLOCK (&pool->smutex);
+
+ return pspec;
+ }
+
+ /* strip type prefix */
+ if (pool->type_prefixing && delim[1] == ':')
{
- key.owner_type = g_type_parent (key.owner_type);
- while (key.owner_type)
+ guint l = delim - param_name;
+ gchar stack_buffer[32], *buffer = l < 32 ? stack_buffer : g_new (gchar, l + 1);
+ GType type;
+
+ strncpy (buffer, param_name, delim - param_name);
+ buffer[l] = 0;
+ type = g_type_from_name (buffer);
+ if (l >= 32)
+ g_free (buffer);
+ if (type) /* type==0 isn't a valid type pefix */
{
- pspec = g_hash_table_lookup (hash_table, &key);
- if (pspec)
- break;
- key.owner_type = g_type_parent (key.owner_type);
+ /* sanity check, these cases don't make a whole lot of sense */
+ if ((!walk_ancestors && type != owner_type) || !g_type_is_a (owner_type, type))
+ {
+ G_SUNLOCK (&pool->smutex);
+
+ return NULL;
+ }
+ owner_type = type;
+ param_name += l + 2;
+ pspec = param_spec_ht_lookup (pool->hash_table, param_name, owner_type, walk_ancestors);
+ G_SUNLOCK (&pool->smutex);
+
+ return pspec;
}
}
+ /* malformed param_name */
+
+ G_SUNLOCK (&pool->smutex);
+
+ return NULL;
+}
+
+static void
+pool_list (gpointer key,
+ gpointer value,
+ gpointer user_data)
+{
+ GParamSpec *pspec = value;
+ gpointer *data = user_data;
+ GType owner_type = (GType) data[1];
+
+ if (owner_type == pspec->owner_type)
+ data[0] = g_list_prepend (data[0], pspec);
+}
+
+GList*
+g_param_spec_pool_list_owned (GParamSpecPool *pool,
+ GType owner_type)
+{
+ gpointer data[2];
+
+ g_return_val_if_fail (pool != NULL, NULL);
+ g_return_val_if_fail (owner_type > 0, NULL);
- g_free (key.name);
+ G_SLOCK (&pool->smutex);
+ data[0] = NULL;
+ data[1] = (gpointer) owner_type;
+ g_hash_table_foreach (pool->hash_table, pool_list, &data);
+ G_SUNLOCK (&pool->smutex);
+
+ return data[0];
+}
+
+static gint
+pspec_compare_id (gconstpointer a,
+ gconstpointer b)
+{
+ const GParamSpec *pspec1 = a, *pspec2 = b;
+
+ return pspec1->param_id < pspec2->param_id ? -1 : pspec1->param_id > pspec2->param_id;
+}
+
+static inline GSList*
+pspec_list_remove_overridden (GSList *plist,
+ GHashTable *ht,
+ GType owner_type,
+ guint *n_p)
+{
+ GSList *rlist = NULL;
+
+ while (plist)
+ {
+ GSList *tmp = plist->next;
+ GParamSpec *pspec = plist->data;
+
+ if (param_spec_ht_lookup (ht, pspec->name, owner_type, TRUE) != pspec)
+ g_slist_free_1 (plist);
+ else
+ {
+ plist->next = rlist;
+ rlist = plist;
+ *n_p += 1;
+ }
+ plist = tmp;
+ }
+ return rlist;
+}
+
+static void
+pool_depth_list (gpointer key,
+ gpointer value,
+ gpointer user_data)
+{
+ GParamSpec *pspec = value;
+ gpointer *data = user_data;
+ GSList **slists = data[0];
+ GType owner_type = (GType) data[1];
+
+ if (g_type_is_a (owner_type, pspec->owner_type))
+ {
+ guint d = g_type_depth (pspec->owner_type);
+
+ slists[d - 1] = g_slist_prepend (slists[d - 1], pspec);
+ }
+}
+
+GParamSpec** /* free result */
+g_param_spec_pool_list (GParamSpecPool *pool,
+ GType owner_type,
+ guint *n_pspecs_p)
+{
+ GParamSpec **pspecs, **p;
+ GSList **slists, *node;
+ gpointer data[2];
+ guint d, i;
+
+ g_return_val_if_fail (pool != NULL, NULL);
+ g_return_val_if_fail (owner_type > 0, NULL);
+ g_return_val_if_fail (n_pspecs_p != NULL, NULL);
- return pspec;
+ G_SLOCK (&pool->smutex);
+ *n_pspecs_p = 0;
+ d = g_type_depth (owner_type);
+ slists = g_new0 (GSList*, d);
+ data[0] = slists;
+ data[1] = (gpointer) owner_type;
+ g_hash_table_foreach (pool->hash_table, pool_depth_list, &data);
+ for (i = 0; i < d - 1; i++)
+ slists[i] = pspec_list_remove_overridden (slists[i], pool->hash_table, owner_type, n_pspecs_p);
+ *n_pspecs_p += g_slist_length (slists[i]);
+ pspecs = g_new (GParamSpec*, *n_pspecs_p + 1);
+ p = pspecs;
+ for (i = 0; i < d; i++)
+ {
+ slists[i] = g_slist_sort (slists[i], pspec_compare_id);
+ for (node = slists[i]; node; node = node->next)
+ *p++ = node->data;
+ g_slist_free (slists[i]);
+ }
+ *p++ = NULL;
+ g_free (slists);
+ G_SUNLOCK (&pool->smutex);
+
+ return pspecs;
+}
+
+
+/* --- auxillary functions --- */
+typedef struct
+{
+ /* class portion */
+ GType value_type;
+ void (*finalize) (GParamSpec *pspec);
+ void (*value_set_default) (GParamSpec *pspec,
+ GValue *value);
+ gboolean (*value_validate) (GParamSpec *pspec,
+ GValue *value);
+ gint (*values_cmp) (GParamSpec *pspec,
+ const GValue *value1,
+ const GValue *value2);
+} ParamSpecClassInfo;
+
+static void
+param_spec_generic_class_init (gpointer g_class,
+ gpointer class_data)
+{
+ GParamSpecClass *class = g_class;
+ ParamSpecClassInfo *info = class_data;
+
+ class->value_type = info->value_type;
+ if (info->finalize)
+ class->finalize = info->finalize; /* optional */
+ class->value_set_default = info->value_set_default;
+ if (info->value_validate)
+ class->value_validate = info->value_validate; /* optional */
+ class->values_cmp = info->values_cmp;
+ g_free (class_data);
+}
+
+static void
+default_value_set_default (GParamSpec *pspec,
+ GValue *value)
+{
+ /* value is already zero initialized */
+}
+
+static gint
+default_values_cmp (GParamSpec *pspec,
+ const GValue *value1,
+ const GValue *value2)
+{
+ return memcmp (&value1->data, &value2->data, sizeof (value1->data));
+}
+
+GType
+g_param_type_register_static (const gchar *name,
+ const GParamSpecTypeInfo *pspec_info)
+{
+ GTypeInfo info = {
+ sizeof (GParamSpecClass), /* class_size */
+ NULL, /* base_init */
+ NULL, /* base_destroy */
+ param_spec_generic_class_init, /* class_init */
+ NULL, /* class_destroy */
+ NULL, /* class_data */
+ 0, /* instance_size */
+ 16, /* n_preallocs */
+ NULL, /* instance_init */
+ };
+ ParamSpecClassInfo *cinfo;
+
+ g_return_val_if_fail (name != NULL, 0);
+ g_return_val_if_fail (pspec_info != NULL, 0);
+ g_return_val_if_fail (g_type_from_name (name) == 0, 0);
+ g_return_val_if_fail (pspec_info->instance_size >= sizeof (GParamSpec), 0);
+ g_return_val_if_fail (g_type_name (pspec_info->value_type) != NULL, 0);
+ /* default: g_return_val_if_fail (pspec_info->value_set_default != NULL, 0); */
+ /* optional: g_return_val_if_fail (pspec_info->value_validate != NULL, 0); */
+ /* default: g_return_val_if_fail (pspec_info->values_cmp != NULL, 0); */
+
+ info.instance_size = pspec_info->instance_size;
+ info.n_preallocs = pspec_info->n_preallocs;
+ info.instance_init = (GInstanceInitFunc) pspec_info->instance_init;
+ cinfo = g_new (ParamSpecClassInfo, 1);
+ cinfo->value_type = pspec_info->value_type;
+ cinfo->finalize = pspec_info->finalize;
+ cinfo->value_set_default = pspec_info->value_set_default ? pspec_info->value_set_default : default_value_set_default;
+ cinfo->value_validate = pspec_info->value_validate;
+ cinfo->values_cmp = pspec_info->values_cmp ? pspec_info->values_cmp : default_values_cmp;
+ info.class_data = cinfo;
+
+ return g_type_register_static (G_TYPE_PARAM, name, &info, 0);
+}
+
+void
+g_value_set_param (GValue *value,
+ GParamSpec *param)
+{
+ g_return_if_fail (G_VALUE_HOLDS_PARAM (value));
+ if (param)
+ g_return_if_fail (G_IS_PARAM_SPEC (param));
+
+ if (value->data[0].v_pointer)
+ g_param_spec_unref (value->data[0].v_pointer);
+ value->data[0].v_pointer = param;
+ if (value->data[0].v_pointer)
+ g_param_spec_ref (value->data[0].v_pointer);
+}
+
+void
+g_value_set_param_take_ownership (GValue *value,
+ GParamSpec *param)
+{
+ g_return_if_fail (G_VALUE_HOLDS_PARAM (value));
+ if (param)
+ g_return_if_fail (G_IS_PARAM_SPEC (param));
+
+ if (value->data[0].v_pointer)
+ g_param_spec_unref (value->data[0].v_pointer);
+ value->data[0].v_pointer = param; /* we take over the reference count */
+}
+
+GParamSpec*
+g_value_get_param (const GValue *value)
+{
+ g_return_val_if_fail (G_VALUE_HOLDS_PARAM (value), NULL);
+
+ return value->data[0].v_pointer;
+}
+
+GParamSpec*
+g_value_dup_param (const GValue *value)
+{
+ g_return_val_if_fail (G_VALUE_HOLDS_PARAM (value), NULL);
+
+ return value->data[0].v_pointer ? g_param_spec_ref (value->data[0].v_pointer) : NULL;
}
projects / platform / upstream / glib.git / blobdiff