1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
3 * Copyright © 2010 Christian Persch
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
28 #include <stdlib.h> /* qsort() */
30 #include "gvaluetypes.h"
31 #include "gtype-private.h"
32 #include "gvaluecollector.h"
39 /* --- value functions --- */
41 value_init_long0 (GValue *value)
43 value->data[0].v_long = 0;
47 value_copy_long0 (const GValue *src_value,
50 dest_value->data[0].v_long = src_value->data[0].v_long;
54 value_lcopy_char (const GValue *value,
55 guint n_collect_values,
56 GTypeCValue *collect_values,
59 gint8 *int8_p = collect_values[0].v_pointer;
62 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
64 *int8_p = value->data[0].v_int;
70 value_lcopy_boolean (const GValue *value,
71 guint n_collect_values,
72 GTypeCValue *collect_values,
75 gboolean *bool_p = collect_values[0].v_pointer;
78 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
80 *bool_p = value->data[0].v_int;
86 value_collect_int (GValue *value,
87 guint n_collect_values,
88 GTypeCValue *collect_values,
91 value->data[0].v_int = collect_values[0].v_int;
97 value_lcopy_int (const GValue *value,
98 guint n_collect_values,
99 GTypeCValue *collect_values,
102 gint *int_p = collect_values[0].v_pointer;
105 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
107 *int_p = value->data[0].v_int;
113 value_collect_long (GValue *value,
114 guint n_collect_values,
115 GTypeCValue *collect_values,
118 value->data[0].v_long = collect_values[0].v_long;
124 value_lcopy_long (const GValue *value,
125 guint n_collect_values,
126 GTypeCValue *collect_values,
129 glong *long_p = collect_values[0].v_pointer;
132 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
134 *long_p = value->data[0].v_long;
140 value_init_int64 (GValue *value)
142 value->data[0].v_int64 = 0;
146 value_copy_int64 (const GValue *src_value,
149 dest_value->data[0].v_int64 = src_value->data[0].v_int64;
153 value_collect_int64 (GValue *value,
154 guint n_collect_values,
155 GTypeCValue *collect_values,
158 value->data[0].v_int64 = collect_values[0].v_int64;
164 value_lcopy_int64 (const GValue *value,
165 guint n_collect_values,
166 GTypeCValue *collect_values,
169 gint64 *int64_p = collect_values[0].v_pointer;
172 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
174 *int64_p = value->data[0].v_int64;
180 value_init_float (GValue *value)
182 value->data[0].v_float = 0.0;
186 value_copy_float (const GValue *src_value,
189 dest_value->data[0].v_float = src_value->data[0].v_float;
193 value_collect_float (GValue *value,
194 guint n_collect_values,
195 GTypeCValue *collect_values,
198 value->data[0].v_float = collect_values[0].v_double;
204 value_lcopy_float (const GValue *value,
205 guint n_collect_values,
206 GTypeCValue *collect_values,
209 gfloat *float_p = collect_values[0].v_pointer;
212 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
214 *float_p = value->data[0].v_float;
220 value_init_double (GValue *value)
222 value->data[0].v_double = 0.0;
226 value_copy_double (const GValue *src_value,
229 dest_value->data[0].v_double = src_value->data[0].v_double;
233 value_collect_double (GValue *value,
234 guint n_collect_values,
235 GTypeCValue *collect_values,
238 value->data[0].v_double = collect_values[0].v_double;
244 value_lcopy_double (const GValue *value,
245 guint n_collect_values,
246 GTypeCValue *collect_values,
249 gdouble *double_p = collect_values[0].v_pointer;
252 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
254 *double_p = value->data[0].v_double;
260 value_init_string (GValue *value)
262 value->data[0].v_pointer = NULL;
266 value_free_string (GValue *value)
268 if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
269 g_free (value->data[0].v_pointer);
273 value_copy_string (const GValue *src_value,
276 dest_value->data[0].v_pointer = g_strdup (src_value->data[0].v_pointer);
280 value_collect_string (GValue *value,
281 guint n_collect_values,
282 GTypeCValue *collect_values,
285 if (!collect_values[0].v_pointer)
286 value->data[0].v_pointer = NULL;
287 else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
289 value->data[0].v_pointer = collect_values[0].v_pointer;
290 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
293 value->data[0].v_pointer = g_strdup (collect_values[0].v_pointer);
299 value_lcopy_string (const GValue *value,
300 guint n_collect_values,
301 GTypeCValue *collect_values,
304 gchar **string_p = collect_values[0].v_pointer;
307 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
309 if (!value->data[0].v_pointer)
311 else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
312 *string_p = value->data[0].v_pointer;
314 *string_p = g_strdup (value->data[0].v_pointer);
320 value_init_pointer (GValue *value)
322 value->data[0].v_pointer = NULL;
326 value_copy_pointer (const GValue *src_value,
329 dest_value->data[0].v_pointer = src_value->data[0].v_pointer;
333 value_peek_pointer0 (const GValue *value)
335 return value->data[0].v_pointer;
339 value_collect_pointer (GValue *value,
340 guint n_collect_values,
341 GTypeCValue *collect_values,
344 value->data[0].v_pointer = collect_values[0].v_pointer;
350 value_lcopy_pointer (const GValue *value,
351 guint n_collect_values,
352 GTypeCValue *collect_values,
355 gpointer *pointer_p = collect_values[0].v_pointer;
358 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
360 *pointer_p = value->data[0].v_pointer;
366 value_free_variant (GValue *value)
368 if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) &&
369 value->data[0].v_pointer)
370 g_variant_unref (value->data[0].v_pointer);
374 value_copy_variant (const GValue *src_value,
377 if (src_value->data[0].v_pointer)
378 dest_value->data[0].v_pointer = g_variant_ref_sink (src_value->data[0].v_pointer);
380 dest_value->data[0].v_pointer = NULL;
384 value_collect_variant (GValue *value,
385 guint n_collect_values,
386 GTypeCValue *collect_values,
389 if (!collect_values[0].v_pointer)
390 value->data[0].v_pointer = NULL;
391 else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
393 value->data[0].v_pointer = collect_values[0].v_pointer;
394 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
397 value->data[0].v_pointer = g_variant_ref_sink (collect_values[0].v_pointer);
403 value_lcopy_variant (const GValue *value,
404 guint n_collect_values,
405 GTypeCValue *collect_values,
408 GVariant **variant_p = collect_values[0].v_pointer;
411 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
413 if (!value->data[0].v_pointer)
415 else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
416 *variant_p = value->data[0].v_pointer;
418 *variant_p = g_variant_ref_sink (value->data[0].v_pointer);
423 /* --- type initialization --- */
425 _g_value_types_init (void)
429 NULL, /* base_init */
430 NULL, /* base_destroy */
431 NULL, /* class_init */
432 NULL, /* class_destroy */
433 NULL, /* class_data */
434 0, /* instance_size */
436 NULL, /* instance_init */
437 NULL, /* value_table */
439 const GTypeFundamentalInfo finfo = { G_TYPE_FLAG_DERIVABLE, };
442 /* G_TYPE_CHAR / G_TYPE_UCHAR
445 static const GTypeValueTable value_table = {
446 value_init_long0, /* value_init */
447 NULL, /* value_free */
448 value_copy_long0, /* value_copy */
449 NULL, /* value_peek_pointer */
450 "i", /* collect_format */
451 value_collect_int, /* collect_value */
452 "p", /* lcopy_format */
453 value_lcopy_char, /* lcopy_value */
455 info.value_table = &value_table;
456 type = g_type_register_fundamental (G_TYPE_CHAR, g_intern_static_string ("gchar"), &info, &finfo, 0);
457 g_assert (type == G_TYPE_CHAR);
458 type = g_type_register_fundamental (G_TYPE_UCHAR, g_intern_static_string ("guchar"), &info, &finfo, 0);
459 g_assert (type == G_TYPE_UCHAR);
465 static const GTypeValueTable value_table = {
466 value_init_long0, /* value_init */
467 NULL, /* value_free */
468 value_copy_long0, /* value_copy */
469 NULL, /* value_peek_pointer */
470 "i", /* collect_format */
471 value_collect_int, /* collect_value */
472 "p", /* lcopy_format */
473 value_lcopy_boolean, /* lcopy_value */
475 info.value_table = &value_table;
476 type = g_type_register_fundamental (G_TYPE_BOOLEAN, g_intern_static_string ("gboolean"), &info, &finfo, 0);
477 g_assert (type == G_TYPE_BOOLEAN);
480 /* G_TYPE_INT / G_TYPE_UINT
483 static const GTypeValueTable value_table = {
484 value_init_long0, /* value_init */
485 NULL, /* value_free */
486 value_copy_long0, /* value_copy */
487 NULL, /* value_peek_pointer */
488 "i", /* collect_format */
489 value_collect_int, /* collect_value */
490 "p", /* lcopy_format */
491 value_lcopy_int, /* lcopy_value */
493 info.value_table = &value_table;
494 type = g_type_register_fundamental (G_TYPE_INT, g_intern_static_string ("gint"), &info, &finfo, 0);
495 g_assert (type == G_TYPE_INT);
496 type = g_type_register_fundamental (G_TYPE_UINT, g_intern_static_string ("guint"), &info, &finfo, 0);
497 g_assert (type == G_TYPE_UINT);
500 /* G_TYPE_LONG / G_TYPE_ULONG
503 static const GTypeValueTable value_table = {
504 value_init_long0, /* value_init */
505 NULL, /* value_free */
506 value_copy_long0, /* value_copy */
507 NULL, /* value_peek_pointer */
508 "l", /* collect_format */
509 value_collect_long, /* collect_value */
510 "p", /* lcopy_format */
511 value_lcopy_long, /* lcopy_value */
513 info.value_table = &value_table;
514 type = g_type_register_fundamental (G_TYPE_LONG, g_intern_static_string ("glong"), &info, &finfo, 0);
515 g_assert (type == G_TYPE_LONG);
516 type = g_type_register_fundamental (G_TYPE_ULONG, g_intern_static_string ("gulong"), &info, &finfo, 0);
517 g_assert (type == G_TYPE_ULONG);
520 /* G_TYPE_INT64 / G_TYPE_UINT64
523 static const GTypeValueTable value_table = {
524 value_init_int64, /* value_init */
525 NULL, /* value_free */
526 value_copy_int64, /* value_copy */
527 NULL, /* value_peek_pointer */
528 "q", /* collect_format */
529 value_collect_int64, /* collect_value */
530 "p", /* lcopy_format */
531 value_lcopy_int64, /* lcopy_value */
533 info.value_table = &value_table;
534 type = g_type_register_fundamental (G_TYPE_INT64, g_intern_static_string ("gint64"), &info, &finfo, 0);
535 g_assert (type == G_TYPE_INT64);
536 type = g_type_register_fundamental (G_TYPE_UINT64, g_intern_static_string ("guint64"), &info, &finfo, 0);
537 g_assert (type == G_TYPE_UINT64);
543 static const GTypeValueTable value_table = {
544 value_init_float, /* value_init */
545 NULL, /* value_free */
546 value_copy_float, /* value_copy */
547 NULL, /* value_peek_pointer */
548 "d", /* collect_format */
549 value_collect_float, /* collect_value */
550 "p", /* lcopy_format */
551 value_lcopy_float, /* lcopy_value */
553 info.value_table = &value_table;
554 type = g_type_register_fundamental (G_TYPE_FLOAT, g_intern_static_string ("gfloat"), &info, &finfo, 0);
555 g_assert (type == G_TYPE_FLOAT);
561 static const GTypeValueTable value_table = {
562 value_init_double, /* value_init */
563 NULL, /* value_free */
564 value_copy_double, /* value_copy */
565 NULL, /* value_peek_pointer */
566 "d", /* collect_format */
567 value_collect_double, /* collect_value */
568 "p", /* lcopy_format */
569 value_lcopy_double, /* lcopy_value */
571 info.value_table = &value_table;
572 type = g_type_register_fundamental (G_TYPE_DOUBLE, g_intern_static_string ("gdouble"), &info, &finfo, 0);
573 g_assert (type == G_TYPE_DOUBLE);
579 static const GTypeValueTable value_table = {
580 value_init_string, /* value_init */
581 value_free_string, /* value_free */
582 value_copy_string, /* value_copy */
583 value_peek_pointer0, /* value_peek_pointer */
584 "p", /* collect_format */
585 value_collect_string, /* collect_value */
586 "p", /* lcopy_format */
587 value_lcopy_string, /* lcopy_value */
589 info.value_table = &value_table;
590 type = g_type_register_fundamental (G_TYPE_STRING, g_intern_static_string ("gchararray"), &info, &finfo, 0);
591 g_assert (type == G_TYPE_STRING);
597 static const GTypeValueTable value_table = {
598 value_init_pointer, /* value_init */
599 NULL, /* value_free */
600 value_copy_pointer, /* value_copy */
601 value_peek_pointer0, /* value_peek_pointer */
602 "p", /* collect_format */
603 value_collect_pointer, /* collect_value */
604 "p", /* lcopy_format */
605 value_lcopy_pointer, /* lcopy_value */
607 info.value_table = &value_table;
608 type = g_type_register_fundamental (G_TYPE_POINTER, g_intern_static_string ("gpointer"), &info, &finfo, 0);
609 g_assert (type == G_TYPE_POINTER);
615 static const GTypeValueTable value_table = {
616 value_init_pointer, /* value_init */
617 value_free_variant, /* value_free */
618 value_copy_variant, /* value_copy */
619 value_peek_pointer0, /* value_peek_pointer */
620 "p", /* collect_format */
621 value_collect_variant, /* collect_value */
622 "p", /* lcopy_format */
623 value_lcopy_variant, /* lcopy_value */
625 info.value_table = &value_table;
626 type = g_type_register_fundamental (G_TYPE_VARIANT, g_intern_static_string ("GVariant"), &info, &finfo, 0);
627 g_assert (type == G_TYPE_VARIANT);
632 /* --- GValue functions --- */
635 * @value: a valid #GValue of type %G_TYPE_CHAR
636 * @v_char: character value to be set
638 * Set the contents of a %G_TYPE_CHAR #GValue to @v_char.
641 g_value_set_char (GValue *value,
644 g_return_if_fail (G_VALUE_HOLDS_CHAR (value));
646 value->data[0].v_int = v_char;
651 * @value: a valid #GValue of type %G_TYPE_CHAR
653 * Get the contents of a %G_TYPE_CHAR #GValue.
655 * Returns: character contents of @value
658 g_value_get_char (const GValue *value)
660 g_return_val_if_fail (G_VALUE_HOLDS_CHAR (value), 0);
662 return value->data[0].v_int;
667 * @value: a valid #GValue of type %G_TYPE_UCHAR
668 * @v_uchar: unsigned character value to be set
670 * Set the contents of a %G_TYPE_UCHAR #GValue to @v_uchar.
673 g_value_set_uchar (GValue *value,
676 g_return_if_fail (G_VALUE_HOLDS_UCHAR (value));
678 value->data[0].v_uint = v_uchar;
683 * @value: a valid #GValue of type %G_TYPE_UCHAR
685 * Get the contents of a %G_TYPE_UCHAR #GValue.
687 * Returns: unsigned character contents of @value
690 g_value_get_uchar (const GValue *value)
692 g_return_val_if_fail (G_VALUE_HOLDS_UCHAR (value), 0);
694 return value->data[0].v_uint;
698 * g_value_set_boolean:
699 * @value: a valid #GValue of type %G_TYPE_BOOLEAN
700 * @v_boolean: boolean value to be set
702 * Set the contents of a %G_TYPE_BOOLEAN #GValue to @v_boolean.
705 g_value_set_boolean (GValue *value,
708 g_return_if_fail (G_VALUE_HOLDS_BOOLEAN (value));
710 value->data[0].v_int = v_boolean != FALSE;
714 * g_value_get_boolean:
715 * @value: a valid #GValue of type %G_TYPE_BOOLEAN
717 * Get the contents of a %G_TYPE_BOOLEAN #GValue.
719 * Returns: boolean contents of @value
722 g_value_get_boolean (const GValue *value)
724 g_return_val_if_fail (G_VALUE_HOLDS_BOOLEAN (value), 0);
726 return value->data[0].v_int;
731 * @value: a valid #GValue of type %G_TYPE_INT
732 * @v_int: integer value to be set
734 * Set the contents of a %G_TYPE_INT #GValue to @v_int.
737 g_value_set_int (GValue *value,
740 g_return_if_fail (G_VALUE_HOLDS_INT (value));
742 value->data[0].v_int = v_int;
747 * @value: a valid #GValue of type %G_TYPE_INT
749 * Get the contents of a %G_TYPE_INT #GValue.
751 * Returns: integer contents of @value
754 g_value_get_int (const GValue *value)
756 g_return_val_if_fail (G_VALUE_HOLDS_INT (value), 0);
758 return value->data[0].v_int;
763 * @value: a valid #GValue of type %G_TYPE_UINT
764 * @v_uint: unsigned integer value to be set
766 * Set the contents of a %G_TYPE_UINT #GValue to @v_uint.
769 g_value_set_uint (GValue *value,
772 g_return_if_fail (G_VALUE_HOLDS_UINT (value));
774 value->data[0].v_uint = v_uint;
779 * @value: a valid #GValue of type %G_TYPE_UINT
781 * Get the contents of a %G_TYPE_UINT #GValue.
783 * Returns: unsigned integer contents of @value
786 g_value_get_uint (const GValue *value)
788 g_return_val_if_fail (G_VALUE_HOLDS_UINT (value), 0);
790 return value->data[0].v_uint;
795 * @value: a valid #GValue of type %G_TYPE_LONG
796 * @v_long: long integer value to be set
798 * Set the contents of a %G_TYPE_LONG #GValue to @v_long.
801 g_value_set_long (GValue *value,
804 g_return_if_fail (G_VALUE_HOLDS_LONG (value));
806 value->data[0].v_long = v_long;
811 * @value: a valid #GValue of type %G_TYPE_LONG
813 * Get the contents of a %G_TYPE_LONG #GValue.
815 * Returns: long integer contents of @value
818 g_value_get_long (const GValue *value)
820 g_return_val_if_fail (G_VALUE_HOLDS_LONG (value), 0);
822 return value->data[0].v_long;
827 * @value: a valid #GValue of type %G_TYPE_ULONG
828 * @v_ulong: unsigned long integer value to be set
830 * Set the contents of a %G_TYPE_ULONG #GValue to @v_ulong.
833 g_value_set_ulong (GValue *value,
836 g_return_if_fail (G_VALUE_HOLDS_ULONG (value));
838 value->data[0].v_ulong = v_ulong;
843 * @value: a valid #GValue of type %G_TYPE_ULONG
845 * Get the contents of a %G_TYPE_ULONG #GValue.
847 * Returns: unsigned long integer contents of @value
850 g_value_get_ulong (const GValue *value)
852 g_return_val_if_fail (G_VALUE_HOLDS_ULONG (value), 0);
854 return value->data[0].v_ulong;
859 * @value: a valid #GValue of type %G_TYPE_INT64
861 * Get the contents of a %G_TYPE_INT64 #GValue.
863 * Returns: 64bit integer contents of @value
866 g_value_set_int64 (GValue *value,
869 g_return_if_fail (G_VALUE_HOLDS_INT64 (value));
871 value->data[0].v_int64 = v_int64;
876 * @value: a valid #GValue of type %G_TYPE_INT64
877 * @v_int64: 64bit integer value to be set
879 * Set the contents of a %G_TYPE_INT64 #GValue to @v_int64.
882 g_value_get_int64 (const GValue *value)
884 g_return_val_if_fail (G_VALUE_HOLDS_INT64 (value), 0);
886 return value->data[0].v_int64;
890 * g_value_set_uint64:
891 * @value: a valid #GValue of type %G_TYPE_UINT64
892 * @v_uint64: unsigned 64bit integer value to be set
894 * Set the contents of a %G_TYPE_UINT64 #GValue to @v_uint64.
897 g_value_set_uint64 (GValue *value,
900 g_return_if_fail (G_VALUE_HOLDS_UINT64 (value));
902 value->data[0].v_uint64 = v_uint64;
906 * g_value_get_uint64:
907 * @value: a valid #GValue of type %G_TYPE_UINT64
909 * Get the contents of a %G_TYPE_UINT64 #GValue.
911 * Returns: unsigned 64bit integer contents of @value
914 g_value_get_uint64 (const GValue *value)
916 g_return_val_if_fail (G_VALUE_HOLDS_UINT64 (value), 0);
918 return value->data[0].v_uint64;
923 * @value: a valid #GValue of type %G_TYPE_FLOAT
924 * @v_float: float value to be set
926 * Set the contents of a %G_TYPE_FLOAT #GValue to @v_float.
929 g_value_set_float (GValue *value,
932 g_return_if_fail (G_VALUE_HOLDS_FLOAT (value));
934 value->data[0].v_float = v_float;
939 * @value: a valid #GValue of type %G_TYPE_FLOAT
941 * Get the contents of a %G_TYPE_FLOAT #GValue.
943 * Returns: float contents of @value
946 g_value_get_float (const GValue *value)
948 g_return_val_if_fail (G_VALUE_HOLDS_FLOAT (value), 0);
950 return value->data[0].v_float;
954 * g_value_set_double:
955 * @value: a valid #GValue of type %G_TYPE_DOUBLE
956 * @v_double: double value to be set
958 * Set the contents of a %G_TYPE_DOUBLE #GValue to @v_double.
961 g_value_set_double (GValue *value,
964 g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value));
966 value->data[0].v_double = v_double;
970 * g_value_get_double:
971 * @value: a valid #GValue of type %G_TYPE_DOUBLE
973 * Get the contents of a %G_TYPE_DOUBLE #GValue.
975 * Returns: double contents of @value
978 g_value_get_double (const GValue *value)
980 g_return_val_if_fail (G_VALUE_HOLDS_DOUBLE (value), 0);
982 return value->data[0].v_double;
986 * g_value_set_string:
987 * @value: a valid #GValue of type %G_TYPE_STRING
988 * @v_string: (allow-none): caller-owned string to be duplicated for the #GValue
990 * Set the contents of a %G_TYPE_STRING #GValue to @v_string.
993 g_value_set_string (GValue *value,
994 const gchar *v_string)
998 g_return_if_fail (G_VALUE_HOLDS_STRING (value));
1000 new_val = g_strdup (v_string);
1002 if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
1003 value->data[1].v_uint = 0;
1005 g_free (value->data[0].v_pointer);
1007 value->data[0].v_pointer = new_val;
1011 * g_value_set_static_string:
1012 * @value: a valid #GValue of type %G_TYPE_STRING
1013 * @v_string: (allow-none): static string to be set
1015 * Set the contents of a %G_TYPE_STRING #GValue to @v_string.
1016 * The string is assumed to be static, and is thus not duplicated
1017 * when setting the #GValue.
1020 g_value_set_static_string (GValue *value,
1021 const gchar *v_string)
1023 g_return_if_fail (G_VALUE_HOLDS_STRING (value));
1025 if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
1026 g_free (value->data[0].v_pointer);
1027 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
1028 value->data[0].v_pointer = (gchar*) v_string;
1032 * g_value_set_string_take_ownership:
1033 * @value: a valid #GValue of type %G_TYPE_STRING
1034 * @v_string: (allow-none): duplicated unowned string to be set
1036 * This is an internal function introduced mainly for C marshallers.
1038 * Deprecated: 2.4: Use g_value_take_string() instead.
1041 g_value_set_string_take_ownership (GValue *value,
1044 g_value_take_string (value, v_string);
1048 * g_value_take_string:
1049 * @value: a valid #GValue of type %G_TYPE_STRING
1050 * @v_string: (allow-none): string to take ownership of
1052 * Sets the contents of a %G_TYPE_STRING #GValue to @v_string.
1057 g_value_take_string (GValue *value,
1060 g_return_if_fail (G_VALUE_HOLDS_STRING (value));
1062 if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
1063 value->data[1].v_uint = 0;
1065 g_free (value->data[0].v_pointer);
1066 value->data[0].v_pointer = v_string;
1070 * g_value_get_string:
1071 * @value: a valid #GValue of type %G_TYPE_STRING
1073 * Get the contents of a %G_TYPE_STRING #GValue.
1075 * Returns: string content of @value
1078 g_value_get_string (const GValue *value)
1080 g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL);
1082 return value->data[0].v_pointer;
1086 * g_value_dup_string:
1087 * @value: a valid #GValue of type %G_TYPE_STRING
1089 * Get a copy the contents of a %G_TYPE_STRING #GValue.
1091 * Returns: a newly allocated copy of the string content of @value
1094 g_value_dup_string (const GValue *value)
1096 g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL);
1098 return g_strdup (value->data[0].v_pointer);
1102 * g_value_set_pointer:
1103 * @value: a valid #GValue of %G_TYPE_POINTER
1104 * @v_pointer: pointer value to be set
1106 * Set the contents of a pointer #GValue to @v_pointer.
1109 g_value_set_pointer (GValue *value,
1112 g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
1114 value->data[0].v_pointer = v_pointer;
1118 * g_value_get_pointer:
1119 * @value: a valid #GValue of %G_TYPE_POINTER
1121 * Get the contents of a pointer #GValue.
1123 * Returns: (transfer none): pointer contents of @value
1126 g_value_get_pointer (const GValue *value)
1128 g_return_val_if_fail (G_VALUE_HOLDS_POINTER (value), NULL);
1130 return value->data[0].v_pointer;
1133 G_DEFINE_POINTER_TYPE (GType, g_gtype)
1136 * g_value_set_gtype:
1137 * @value: a valid #GValue of type %G_TYPE_GTYPE
1138 * @v_gtype: #GType to be set
1140 * Set the contents of a %G_TYPE_GTYPE #GValue to @v_gtype.
1145 g_value_set_gtype (GValue *value,
1148 g_return_if_fail (G_VALUE_HOLDS_GTYPE (value));
1150 value->data[0].v_long = v_gtype;
1155 * g_value_get_gtype:
1156 * @value: a valid #GValue of type %G_TYPE_GTYPE
1158 * Get the contents of a %G_TYPE_GTYPE #GValue.
1162 * Returns: the #GType stored in @value
1165 g_value_get_gtype (const GValue *value)
1167 g_return_val_if_fail (G_VALUE_HOLDS_GTYPE (value), 0);
1169 return value->data[0].v_long;
1173 * g_value_set_variant:
1174 * @value: a valid #GValue of type %G_TYPE_VARIANT
1175 * @variant: (allow-none): a #GVariant, or %NULL
1177 * Set the contents of a variant #GValue to @variant.
1178 * If the variant is floating, it is consumed.
1183 g_value_set_variant (GValue *value,
1186 GVariant *old_variant;
1188 g_return_if_fail (G_VALUE_HOLDS_VARIANT (value));
1190 old_variant = value->data[0].v_pointer;
1193 value->data[0].v_pointer = g_variant_ref_sink (variant);
1195 value->data[0].v_pointer = NULL;
1198 g_variant_unref (old_variant);
1202 * g_value_take_variant:
1203 * @value: a valid #GValue of type %G_TYPE_VARIANT
1204 * @variant: (allow-none): a #GVariant, or %NULL
1206 * Set the contents of a variant #GValue to @variant, and takes over
1207 * the ownership of the caller's reference to @variant;
1208 * the caller doesn't have to unref it any more (i.e. the reference
1209 * count of the variant is not increased).
1211 * If @variant was floating then its floating reference is converted to
1214 * If you want the #GValue to hold its own reference to @variant, use
1215 * g_value_set_variant() instead.
1217 * This is an internal function introduced mainly for C marshallers.
1222 g_value_take_variant (GValue *value,
1225 GVariant *old_variant;
1227 g_return_if_fail (G_VALUE_HOLDS_VARIANT (value));
1229 old_variant = value->data[0].v_pointer;
1232 value->data[0].v_pointer = g_variant_take_ref (variant);
1234 value->data[0].v_pointer = NULL;
1237 g_variant_unref (old_variant);
1241 * g_value_get_variant:
1242 * @value: a valid #GValue of type %G_TYPE_VARIANT
1244 * Get the contents of a variant #GValue.
1246 * Returns: variant contents of @value
1251 g_value_get_variant (const GValue *value)
1253 g_return_val_if_fail (G_VALUE_HOLDS_VARIANT (value), NULL);
1255 return value->data[0].v_pointer;
1259 * g_value_dup_variant:
1260 * @value: a valid #GValue of type %G_TYPE_VARIANT
1262 * Get the contents of a variant #GValue, increasing its refcount.
1264 * Returns: variant contents of @value, should be unrefed using
1265 * g_variant_unref() when no longer needed
1270 g_value_dup_variant (const GValue *value)
1274 g_return_val_if_fail (G_VALUE_HOLDS_VARIANT (value), NULL);
1276 variant = value->data[0].v_pointer;
1278 g_variant_ref_sink (variant);
1284 * g_strdup_value_contents:
1285 * @value: #GValue which contents are to be described.
1287 * Return a newly allocated string, which describes the contents of a
1288 * #GValue. The main purpose of this function is to describe #GValue
1289 * contents for debugging output, the way in which the contents are
1290 * described may change between different GLib versions.
1292 * Returns: Newly allocated string.
1295 g_strdup_value_contents (const GValue *value)
1300 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1302 if (G_VALUE_HOLDS_STRING (value))
1304 src = g_value_get_string (value);
1307 contents = g_strdup ("NULL");
1310 gchar *s = g_strescape (src, NULL);
1312 contents = g_strdup_printf ("\"%s\"", s);
1316 else if (g_value_type_transformable (G_VALUE_TYPE (value), G_TYPE_STRING))
1318 GValue tmp_value = { 0, };
1321 g_value_init (&tmp_value, G_TYPE_STRING);
1322 g_value_transform (value, &tmp_value);
1323 s = g_strescape (g_value_get_string (&tmp_value), NULL);
1324 g_value_unset (&tmp_value);
1325 if (G_VALUE_HOLDS_ENUM (value) || G_VALUE_HOLDS_FLAGS (value))
1326 contents = g_strdup_printf ("((%s) %s)",
1327 g_type_name (G_VALUE_TYPE (value)),
1330 contents = g_strdup (s ? s : "NULL");
1333 else if (g_value_fits_pointer (value))
1335 gpointer p = g_value_peek_pointer (value);
1338 contents = g_strdup ("NULL");
1339 else if (G_VALUE_HOLDS_OBJECT (value))
1340 contents = g_strdup_printf ("((%s*) %p)", G_OBJECT_TYPE_NAME (p), p);
1341 else if (G_VALUE_HOLDS_PARAM (value))
1342 contents = g_strdup_printf ("((%s*) %p)", G_PARAM_SPEC_TYPE_NAME (p), p);
1343 else if (G_VALUE_HOLDS (value, G_TYPE_STRV))
1345 GStrv strv = g_value_get_boxed (value);
1346 GString *tmp = g_string_new ("[");
1348 while (*strv != NULL)
1350 gchar *escaped = g_strescape (*strv, NULL);
1352 g_string_append_printf (tmp, "\"%s\"", escaped);
1355 if (*++strv != NULL)
1356 g_string_append (tmp, ", ");
1359 g_string_append (tmp, "]");
1360 contents = g_string_free (tmp, FALSE);
1362 else if (G_VALUE_HOLDS_BOXED (value))
1363 contents = g_strdup_printf ("((%s*) %p)", g_type_name (G_VALUE_TYPE (value)), p);
1364 else if (G_VALUE_HOLDS_POINTER (value))
1365 contents = g_strdup_printf ("((gpointer) %p)", p);
1367 contents = g_strdup ("???");
1370 contents = g_strdup ("???");
1376 * g_pointer_type_register_static:
1377 * @name: the name of the new pointer type.
1379 * Creates a new %G_TYPE_POINTER derived type id for a new
1380 * pointer type with name @name.
1382 * Returns: a new %G_TYPE_POINTER derived type id for @name.
1385 g_pointer_type_register_static (const gchar *name)
1387 static const GTypeInfo type_info = {
1389 NULL, /* base_init */
1390 NULL, /* base_finalize */
1391 NULL, /* class_init */
1392 NULL, /* class_finalize */
1393 NULL, /* class_data */
1394 0, /* instance_size */
1395 0, /* n_preallocs */
1396 NULL, /* instance_init */
1397 NULL /* value_table */
1401 g_return_val_if_fail (name != NULL, 0);
1402 g_return_val_if_fail (g_type_from_name (name) == 0, 0);
1404 type = g_type_register_static (G_TYPE_POINTER, name, &type_info, 0);