--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/glib/libgobject/src/gboxed.c Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,671 @@
+/* GObject - GLib Type, Object, Parameter and Signal Library
+ * Copyright (C) 2000-2001 Red Hat, Inc.
+ * 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 "gboxed.h"
+
+#include "gbsearcharray.h"
+#include "gvalue.h"
+#include "gvaluearray.h"
+#include "gclosure.h"
+#include "gvaluecollector.h"
+
+#include "gobjectalias.h"
+
+#include <string.h>
+
+#ifdef __SYMBIAN32__
+#include <gobject_wsd.h>
+#endif /* __SYMBIAN32__ */
+
+
+/* --- typedefs & structures --- */
+typedef struct
+{
+ GType type;
+ GBoxedCopyFunc copy;
+ GBoxedFreeFunc free;
+} BoxedNode;
+
+
+/* --- prototypes --- */
+static gint boxed_nodes_cmp (gconstpointer p1,
+ gconstpointer p2);
+
+
+/* --- variables --- */
+#if EMULATOR
+
+PLS(boxed_bsa,gboxed,GBSearchArray *)
+#define boxed_bsa (*FUNCTION_NAME(boxed_bsa,gboxed)())
+
+#else
+
+static GBSearchArray *boxed_bsa = NULL;
+
+#endif /*EMULATOR */
+static const GBSearchConfig boxed_bconfig = {
+ sizeof (BoxedNode),
+ boxed_nodes_cmp,
+ 0,
+};
+
+
+/* --- functions --- */
+static gint
+boxed_nodes_cmp (gconstpointer p1,
+ gconstpointer p2)
+{
+ const BoxedNode *node1 = p1, *node2 = p2;
+
+ return G_BSEARCH_ARRAY_CMP (node1->type, node2->type);
+}
+
+static inline void /* keep this function in sync with gvalue.c */
+value_meminit (GValue *value,
+ GType value_type)
+{
+ value->g_type = value_type;
+ memset (value->data, 0, sizeof (value->data));
+}
+
+static gpointer
+value_copy (gpointer boxed)
+{
+ const GValue *src_value = boxed;
+ GValue *dest_value = g_new0 (GValue, 1);
+
+ if (G_VALUE_TYPE (src_value))
+ {
+ g_value_init (dest_value, G_VALUE_TYPE (src_value));
+ g_value_copy (src_value, dest_value);
+ }
+ return dest_value;
+}
+
+static void
+value_free (gpointer boxed)
+{
+ GValue *value = boxed;
+
+ if (G_VALUE_TYPE (value))
+ g_value_unset (value);
+ g_free (value);
+}
+
+void
+g_boxed_type_init (void)
+{
+ static const GTypeInfo info = {
+ 0, /* class_size */
+ NULL, /* base_init */
+ NULL, /* base_destroy */
+ NULL, /* class_init */
+ NULL, /* class_destroy */
+ NULL, /* class_data */
+ 0, /* instance_size */
+ 0, /* n_preallocs */
+ NULL, /* instance_init */
+ NULL, /* value_table */
+ };
+ const GTypeFundamentalInfo finfo = { G_TYPE_FLAG_DERIVABLE, };
+ GType type;
+
+ boxed_bsa = g_bsearch_array_create (&boxed_bconfig);
+
+ /* G_TYPE_BOXED
+ */
+ type = g_type_register_fundamental (G_TYPE_BOXED, g_intern_static_string ("GBoxed"), &info, &finfo,
+ G_TYPE_FLAG_ABSTRACT | G_TYPE_FLAG_VALUE_ABSTRACT);
+ g_assert (type == G_TYPE_BOXED);
+}
+
+#if EMULATOR
+
+PLS(type_id,g_closure_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_closure_get_type )())
+
+#endif /* EMULATOR */
+
+EXPORT_C GType
+g_closure_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* EMULATOR */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GClosure"),
+ (GBoxedCopyFunc) g_closure_ref,
+ (GBoxedFreeFunc) g_closure_unref);
+ return type_id;
+}
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_value_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_value_get_type )())
+
+#endif /* EMULATOR */
+
+EXPORT_C GType
+g_value_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* EMULATOR */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GValue"),
+ value_copy,
+ value_free);
+ return type_id;
+}
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_value_array_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_value_array_get_type )())
+
+#endif /* EMULATOR */
+
+
+EXPORT_C GType
+g_value_array_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* EMULATOR */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GValueArray"),
+ (GBoxedCopyFunc) g_value_array_copy,
+ (GBoxedFreeFunc) g_value_array_free);
+ return type_id;
+}
+
+static gpointer
+gdate_copy (gpointer boxed)
+{
+ const GDate *date = (const GDate*) boxed;
+
+ return g_date_new_julian (g_date_get_julian (date));
+}
+
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_date_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_date_get_type )())
+
+#endif /* EMULATOR */
+
+
+EXPORT_C GType
+g_date_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* EMULATOR */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GDate"),
+ (GBoxedCopyFunc) gdate_copy,
+ (GBoxedFreeFunc) g_date_free);
+ return type_id;
+}
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_strv_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_strv_get_type )())
+
+#endif /* EMULATOR */
+
+EXPORT_C GType
+g_strv_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* EMULATOR */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GStrv"),
+ (GBoxedCopyFunc) g_strdupv,
+ (GBoxedFreeFunc) g_strfreev);
+ return type_id;
+}
+
+static gpointer
+gstring_copy (gpointer boxed)
+{
+ const GString *src_gstring = boxed;
+
+ return g_string_new_len (src_gstring->str, src_gstring->len);
+}
+
+static void
+gstring_free (gpointer boxed)
+{
+ GString *gstring = boxed;
+
+ g_string_free (gstring, TRUE);
+}
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_gstring_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_gstring_get_type )())
+
+#endif /* EMULATOR */
+
+EXPORT_C GType
+g_gstring_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif /* !(EMULATOR) */
+
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GString"),
+ /* the naming is a bit odd, but GString is obviously not G_TYPE_STRING */
+ gstring_copy,
+ gstring_free);
+ return type_id;
+}
+
+static gpointer
+hash_table_copy (gpointer boxed)
+{
+ GHashTable *hash_table = boxed;
+ return g_hash_table_ref (hash_table);
+}
+
+static void
+hash_table_free (gpointer boxed)
+{
+ GHashTable *hash_table = boxed;
+ g_hash_table_unref (hash_table);
+}
+
+#if EMULATOR
+
+#undef type_id
+PLS(type_id,g_hash_table_get_type ,GType)
+#define type_id (*FUNCTION_NAME(type_id,g_hash_table_get_type )())
+
+#endif /* EMULATOR */
+
+EXPORT_C GType
+g_hash_table_get_type (void)
+{
+ #if !(EMULATOR)
+ static GType type_id = 0;
+ #endif */ !(EMULATOR) */
+ if (!type_id)
+ type_id = g_boxed_type_register_static (g_intern_static_string ("GHashTable"),
+ hash_table_copy, hash_table_free);
+ return type_id;
+}
+
+#if EMULATOR
+#undef type_id
+#endif /* EMULATOR */
+
+static void
+boxed_proxy_value_init (GValue *value)
+{
+ value->data[0].v_pointer = NULL;
+}
+
+static void
+boxed_proxy_value_free (GValue *value)
+{
+ if (value->data[0].v_pointer && !(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
+ {
+ BoxedNode key, *node;
+
+ key.type = G_VALUE_TYPE (value);
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+ node->free (value->data[0].v_pointer);
+ }
+}
+
+static void
+boxed_proxy_value_copy (const GValue *src_value,
+ GValue *dest_value)
+{
+ if (src_value->data[0].v_pointer)
+ {
+ BoxedNode key, *node;
+
+ key.type = G_VALUE_TYPE (src_value);
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+ dest_value->data[0].v_pointer = node->copy (src_value->data[0].v_pointer);
+ }
+ else
+ dest_value->data[0].v_pointer = src_value->data[0].v_pointer;
+}
+
+static gpointer
+boxed_proxy_value_peek_pointer (const GValue *value)
+{
+ return value->data[0].v_pointer;
+}
+
+static gchar*
+boxed_proxy_collect_value (GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
+{
+ BoxedNode key, *node;
+
+ key.type = G_VALUE_TYPE (value);
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+
+ if (!collect_values[0].v_pointer)
+ value->data[0].v_pointer = NULL;
+ else
+ {
+ if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
+ {
+ value->data[0].v_pointer = collect_values[0].v_pointer;
+ value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
+ }
+ else
+ value->data[0].v_pointer = node->copy (collect_values[0].v_pointer);
+ }
+
+ return NULL;
+}
+
+static gchar*
+boxed_proxy_lcopy_value (const GValue *value,
+ guint n_collect_values,
+ GTypeCValue *collect_values,
+ guint collect_flags)
+{
+ gpointer *boxed_p = collect_values[0].v_pointer;
+
+ if (!boxed_p)
+ return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
+
+ if (!value->data[0].v_pointer)
+ *boxed_p = NULL;
+ else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
+ *boxed_p = value->data[0].v_pointer;
+ else
+ {
+ BoxedNode key, *node;
+
+ key.type = G_VALUE_TYPE (value);
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+ *boxed_p = node->copy (value->data[0].v_pointer);
+ }
+
+ return NULL;
+}
+
+EXPORT_C GType
+g_boxed_type_register_static (const gchar *name,
+ GBoxedCopyFunc boxed_copy,
+ GBoxedFreeFunc boxed_free)
+{
+ static const GTypeValueTable vtable = {
+ boxed_proxy_value_init,
+ boxed_proxy_value_free,
+ boxed_proxy_value_copy,
+ boxed_proxy_value_peek_pointer,
+ "p",
+ boxed_proxy_collect_value,
+ "p",
+ boxed_proxy_lcopy_value,
+ };
+ static const GTypeInfo type_info = {
+ 0, /* class_size */
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ NULL, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ 0, /* instance_size */
+ 0, /* n_preallocs */
+ NULL, /* instance_init */
+ &vtable, /* value_table */
+ };
+ GType type;
+
+ g_return_val_if_fail (name != NULL, 0);
+ g_return_val_if_fail (boxed_copy != NULL, 0);
+ g_return_val_if_fail (boxed_free != NULL, 0);
+ g_return_val_if_fail (g_type_from_name (name) == 0, 0);
+
+ type = g_type_register_static (G_TYPE_BOXED, name, &type_info, 0);
+
+ /* install proxy functions upon successfull registration */
+ if (type)
+ {
+ BoxedNode key;
+
+ key.type = type;
+ key.copy = boxed_copy;
+ key.free = boxed_free;
+ boxed_bsa = g_bsearch_array_insert (boxed_bsa, &boxed_bconfig, &key);
+ }
+
+ return type;
+}
+
+EXPORT_C gpointer
+g_boxed_copy (GType boxed_type,
+ gconstpointer src_boxed)
+{
+ GTypeValueTable *value_table;
+ gpointer dest_boxed;
+
+ g_return_val_if_fail (G_TYPE_IS_BOXED (boxed_type), NULL);
+ g_return_val_if_fail (G_TYPE_IS_ABSTRACT (boxed_type) == FALSE, NULL);
+ g_return_val_if_fail (src_boxed != NULL, NULL);
+
+ value_table = g_type_value_table_peek (boxed_type);
+ if (!value_table)
+ g_return_val_if_fail (G_TYPE_IS_VALUE_TYPE (boxed_type), NULL);
+
+ /* check if our proxying implementation is used, we can short-cut here */
+ if (value_table->value_copy == boxed_proxy_value_copy)
+ {
+ BoxedNode key, *node;
+
+ key.type = boxed_type;
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+ dest_boxed = node->copy ((gpointer) src_boxed);
+ }
+ else
+ {
+ GValue src_value, dest_value;
+
+ /* we heavily rely on third-party boxed type value vtable
+ * implementations to follow normal boxed value storage
+ * (data[0].v_pointer is the boxed struct, and
+ * data[1].v_uint holds the G_VALUE_NOCOPY_CONTENTS flag,
+ * rest zero).
+ * but then, we can expect that since we layed out the
+ * g_boxed_*() API.
+ * data[1].v_uint&G_VALUE_NOCOPY_CONTENTS shouldn't be set
+ * after a copy.
+ */
+ /* equiv. to g_value_set_static_boxed() */
+ value_meminit (&src_value, boxed_type);
+ src_value.data[0].v_pointer = (gpointer) src_boxed;
+ src_value.data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
+
+ /* call third-party code copy function, fingers-crossed */
+ value_meminit (&dest_value, boxed_type);
+ value_table->value_copy (&src_value, &dest_value);
+
+ /* double check and grouse if things went wrong */
+ if (dest_value.data[1].v_ulong)
+ g_warning ("the copy_value() implementation of type `%s' seems to make use of reserved GValue fields",
+ g_type_name (boxed_type));
+
+ dest_boxed = dest_value.data[0].v_pointer;
+ }
+
+ return dest_boxed;
+}
+
+EXPORT_C void
+g_boxed_free (GType boxed_type,
+ gpointer boxed)
+{
+ GTypeValueTable *value_table;
+
+ g_return_if_fail (G_TYPE_IS_BOXED (boxed_type));
+ g_return_if_fail (G_TYPE_IS_ABSTRACT (boxed_type) == FALSE);
+ g_return_if_fail (boxed != NULL);
+
+ value_table = g_type_value_table_peek (boxed_type);
+ if (!value_table)
+ g_return_if_fail (G_TYPE_IS_VALUE_TYPE (boxed_type));
+
+ /* check if our proxying implementation is used, we can short-cut here */
+ if (value_table->value_free == boxed_proxy_value_free)
+ {
+ BoxedNode key, *node;
+
+ key.type = boxed_type;
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+ node->free (boxed);
+ }
+ else
+ {
+ GValue value;
+
+ /* see g_boxed_copy() on why we think we can do this */
+ value_meminit (&value, boxed_type);
+ value.data[0].v_pointer = boxed;
+ value_table->value_free (&value);
+ }
+}
+
+EXPORT_C gpointer
+g_value_get_boxed (const GValue *value)
+{
+ g_return_val_if_fail (G_VALUE_HOLDS_BOXED (value), NULL);
+ g_return_val_if_fail (G_TYPE_IS_VALUE (G_VALUE_TYPE (value)), NULL);
+
+ return value->data[0].v_pointer;
+}
+
+EXPORT_C gpointer
+g_value_dup_boxed (const GValue *value)
+{
+ g_return_val_if_fail (G_VALUE_HOLDS_BOXED (value), NULL);
+ g_return_val_if_fail (G_TYPE_IS_VALUE (G_VALUE_TYPE (value)), NULL);
+
+ return value->data[0].v_pointer ? g_boxed_copy (G_VALUE_TYPE (value), value->data[0].v_pointer) : NULL;
+}
+
+static inline void
+value_set_boxed_internal (GValue *value,
+ gconstpointer const_boxed,
+ gboolean need_copy,
+ gboolean need_free)
+{
+ BoxedNode key, *node;
+ gpointer boxed = (gpointer) const_boxed;
+
+ if (!boxed)
+ {
+ /* just resetting to NULL might not be desired, need to
+ * have value reinitialized also (for values defaulting
+ * to other default value states than a NULL data pointer),
+ * g_value_reset() will handle this
+ */
+ g_value_reset (value);
+ return;
+ }
+
+ key.type = G_VALUE_TYPE (value);
+ node = g_bsearch_array_lookup (boxed_bsa, &boxed_bconfig, &key);
+
+ if (node)
+ {
+ /* we proxy this type, free contents and copy right away */
+ if (value->data[0].v_pointer && !(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
+ node->free (value->data[0].v_pointer);
+ value->data[1].v_uint = need_free ? 0 : G_VALUE_NOCOPY_CONTENTS;
+ value->data[0].v_pointer = need_copy ? node->copy (boxed) : boxed;
+ }
+ else
+ {
+ /* we don't handle this type, free contents and let g_boxed_copy()
+ * figure what's required
+ */
+ if (value->data[0].v_pointer && !(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
+ g_boxed_free (G_VALUE_TYPE (value), value->data[0].v_pointer);
+ value->data[1].v_uint = need_free ? 0 : G_VALUE_NOCOPY_CONTENTS;
+ value->data[0].v_pointer = need_copy ? g_boxed_copy (G_VALUE_TYPE (value), boxed) : boxed;
+ }
+}
+
+EXPORT_C void
+g_value_set_boxed (GValue *value,
+ gconstpointer boxed)
+{
+ g_return_if_fail (G_VALUE_HOLDS_BOXED (value));
+ g_return_if_fail (G_TYPE_IS_VALUE (G_VALUE_TYPE (value)));
+
+ value_set_boxed_internal (value, boxed, TRUE, TRUE);
+}
+
+EXPORT_C void
+g_value_set_static_boxed (GValue *value,
+ gconstpointer boxed)
+{
+ g_return_if_fail (G_VALUE_HOLDS_BOXED (value));
+ g_return_if_fail (G_TYPE_IS_VALUE (G_VALUE_TYPE (value)));
+
+ value_set_boxed_internal (value, boxed, FALSE, FALSE);
+}
+
+EXPORT_C void
+g_value_set_boxed_take_ownership (GValue *value,
+ gconstpointer boxed)
+{
+ g_value_take_boxed (value, boxed);
+}
+
+EXPORT_C void
+g_value_take_boxed (GValue *value,
+ gconstpointer boxed)
+{
+ g_return_if_fail (G_VALUE_HOLDS_BOXED (value));
+ g_return_if_fail (G_TYPE_IS_VALUE (G_VALUE_TYPE (value)));
+
+ value_set_boxed_internal (value, boxed, FALSE, TRUE);
+}
+
+#define __G_BOXED_C__
+#include "gobjectaliasdef.c"