/* GObject - GLib Type, Object, Parameter and Signal Library * Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc. * Copyright © 2010 Christian Persch * * 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, see . */ /* * MT safe */ #include "config.h" #include #include /* qsort() */ #include "gvaluetypes.h" #include "gtype-private.h" #include "gvaluecollector.h" #include "gobject.h" #include "gparam.h" #include "gboxed.h" #include "genums.h" /* --- value functions --- */ static void value_init_long0 (GValue *value) { value->data[0].v_long = 0; } static void value_copy_long0 (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_long = src_value->data[0].v_long; } static gchar* value_lcopy_char (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gint8 *int8_p = collect_values[0].v_pointer; if (!int8_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *int8_p = value->data[0].v_int; return NULL; } static gchar* value_lcopy_boolean (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gboolean *bool_p = collect_values[0].v_pointer; if (!bool_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *bool_p = value->data[0].v_int; return NULL; } static gchar* value_collect_int (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_int = collect_values[0].v_int; return NULL; } static gchar* value_lcopy_int (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gint *int_p = collect_values[0].v_pointer; if (!int_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *int_p = value->data[0].v_int; return NULL; } static gchar* value_collect_long (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_long = collect_values[0].v_long; return NULL; } static gchar* value_lcopy_long (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { glong *long_p = collect_values[0].v_pointer; if (!long_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *long_p = value->data[0].v_long; return NULL; } static void value_init_int64 (GValue *value) { value->data[0].v_int64 = 0; } static void value_copy_int64 (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_int64 = src_value->data[0].v_int64; } static gchar* value_collect_int64 (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_int64 = collect_values[0].v_int64; return NULL; } static gchar* value_lcopy_int64 (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gint64 *int64_p = collect_values[0].v_pointer; if (!int64_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *int64_p = value->data[0].v_int64; return NULL; } static void value_init_float (GValue *value) { value->data[0].v_float = 0.0; } static void value_copy_float (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_float = src_value->data[0].v_float; } static gchar* value_collect_float (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_float = collect_values[0].v_double; return NULL; } static gchar* value_lcopy_float (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gfloat *float_p = collect_values[0].v_pointer; if (!float_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *float_p = value->data[0].v_float; return NULL; } static void value_init_double (GValue *value) { value->data[0].v_double = 0.0; } static void value_copy_double (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_double = src_value->data[0].v_double; } static gchar* value_collect_double (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_double = collect_values[0].v_double; return NULL; } static gchar* value_lcopy_double (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gdouble *double_p = collect_values[0].v_pointer; if (!double_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *double_p = value->data[0].v_double; return NULL; } static void value_init_string (GValue *value) { value->data[0].v_pointer = NULL; } static void value_free_string (GValue *value) { if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)) g_free (value->data[0].v_pointer); } static void value_copy_string (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_pointer = g_strdup (src_value->data[0].v_pointer); } static gchar* value_collect_string (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { 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 = g_strdup (collect_values[0].v_pointer); return NULL; } static gchar* value_lcopy_string (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gchar **string_p = collect_values[0].v_pointer; if (!string_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); if (!value->data[0].v_pointer) *string_p = NULL; else if (collect_flags & G_VALUE_NOCOPY_CONTENTS) *string_p = value->data[0].v_pointer; else *string_p = g_strdup (value->data[0].v_pointer); return NULL; } static void value_init_pointer (GValue *value) { value->data[0].v_pointer = NULL; } static void value_copy_pointer (const GValue *src_value, GValue *dest_value) { dest_value->data[0].v_pointer = src_value->data[0].v_pointer; } static gpointer value_peek_pointer0 (const GValue *value) { return value->data[0].v_pointer; } static gchar* value_collect_pointer (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { value->data[0].v_pointer = collect_values[0].v_pointer; return NULL; } static gchar* value_lcopy_pointer (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { gpointer *pointer_p = collect_values[0].v_pointer; if (!pointer_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); *pointer_p = value->data[0].v_pointer; return NULL; } static void value_free_variant (GValue *value) { if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) && value->data[0].v_pointer) g_variant_unref (value->data[0].v_pointer); } static void value_copy_variant (const GValue *src_value, GValue *dest_value) { if (src_value->data[0].v_pointer) dest_value->data[0].v_pointer = g_variant_ref_sink (src_value->data[0].v_pointer); else dest_value->data[0].v_pointer = NULL; } static gchar* value_collect_variant (GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { 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 = g_variant_ref_sink (collect_values[0].v_pointer); return NULL; } static gchar* value_lcopy_variant (const GValue *value, guint n_collect_values, GTypeCValue *collect_values, guint collect_flags) { GVariant **variant_p = collect_values[0].v_pointer; if (!variant_p) return g_strdup_printf ("value location for '%s' passed as NULL", G_VALUE_TYPE_NAME (value)); if (!value->data[0].v_pointer) *variant_p = NULL; else if (collect_flags & G_VALUE_NOCOPY_CONTENTS) *variant_p = value->data[0].v_pointer; else *variant_p = g_variant_ref_sink (value->data[0].v_pointer); return NULL; } /* --- type initialization --- */ void _g_value_types_init (void) { 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; /* G_TYPE_CHAR / G_TYPE_UCHAR */ { static const GTypeValueTable value_table = { value_init_long0, /* value_init */ NULL, /* value_free */ value_copy_long0, /* value_copy */ NULL, /* value_peek_pointer */ "i", /* collect_format */ value_collect_int, /* collect_value */ "p", /* lcopy_format */ value_lcopy_char, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_CHAR, g_intern_static_string ("gchar"), &info, &finfo, 0); g_assert (type == G_TYPE_CHAR); type = g_type_register_fundamental (G_TYPE_UCHAR, g_intern_static_string ("guchar"), &info, &finfo, 0); g_assert (type == G_TYPE_UCHAR); } /* G_TYPE_BOOLEAN */ { static const GTypeValueTable value_table = { value_init_long0, /* value_init */ NULL, /* value_free */ value_copy_long0, /* value_copy */ NULL, /* value_peek_pointer */ "i", /* collect_format */ value_collect_int, /* collect_value */ "p", /* lcopy_format */ value_lcopy_boolean, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_BOOLEAN, g_intern_static_string ("gboolean"), &info, &finfo, 0); g_assert (type == G_TYPE_BOOLEAN); } /* G_TYPE_INT / G_TYPE_UINT */ { static const GTypeValueTable value_table = { value_init_long0, /* value_init */ NULL, /* value_free */ value_copy_long0, /* value_copy */ NULL, /* value_peek_pointer */ "i", /* collect_format */ value_collect_int, /* collect_value */ "p", /* lcopy_format */ value_lcopy_int, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_INT, g_intern_static_string ("gint"), &info, &finfo, 0); g_assert (type == G_TYPE_INT); type = g_type_register_fundamental (G_TYPE_UINT, g_intern_static_string ("guint"), &info, &finfo, 0); g_assert (type == G_TYPE_UINT); } /* G_TYPE_LONG / G_TYPE_ULONG */ { static const GTypeValueTable value_table = { value_init_long0, /* value_init */ NULL, /* value_free */ value_copy_long0, /* value_copy */ NULL, /* value_peek_pointer */ "l", /* collect_format */ value_collect_long, /* collect_value */ "p", /* lcopy_format */ value_lcopy_long, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_LONG, g_intern_static_string ("glong"), &info, &finfo, 0); g_assert (type == G_TYPE_LONG); type = g_type_register_fundamental (G_TYPE_ULONG, g_intern_static_string ("gulong"), &info, &finfo, 0); g_assert (type == G_TYPE_ULONG); } /* G_TYPE_INT64 / G_TYPE_UINT64 */ { static const GTypeValueTable value_table = { value_init_int64, /* value_init */ NULL, /* value_free */ value_copy_int64, /* value_copy */ NULL, /* value_peek_pointer */ "q", /* collect_format */ value_collect_int64, /* collect_value */ "p", /* lcopy_format */ value_lcopy_int64, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_INT64, g_intern_static_string ("gint64"), &info, &finfo, 0); g_assert (type == G_TYPE_INT64); type = g_type_register_fundamental (G_TYPE_UINT64, g_intern_static_string ("guint64"), &info, &finfo, 0); g_assert (type == G_TYPE_UINT64); } /* G_TYPE_FLOAT */ { static const GTypeValueTable value_table = { value_init_float, /* value_init */ NULL, /* value_free */ value_copy_float, /* value_copy */ NULL, /* value_peek_pointer */ "d", /* collect_format */ value_collect_float, /* collect_value */ "p", /* lcopy_format */ value_lcopy_float, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_FLOAT, g_intern_static_string ("gfloat"), &info, &finfo, 0); g_assert (type == G_TYPE_FLOAT); } /* G_TYPE_DOUBLE */ { static const GTypeValueTable value_table = { value_init_double, /* value_init */ NULL, /* value_free */ value_copy_double, /* value_copy */ NULL, /* value_peek_pointer */ "d", /* collect_format */ value_collect_double, /* collect_value */ "p", /* lcopy_format */ value_lcopy_double, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_DOUBLE, g_intern_static_string ("gdouble"), &info, &finfo, 0); g_assert (type == G_TYPE_DOUBLE); } /* G_TYPE_STRING */ { static const GTypeValueTable value_table = { value_init_string, /* value_init */ value_free_string, /* value_free */ value_copy_string, /* value_copy */ value_peek_pointer0, /* value_peek_pointer */ "p", /* collect_format */ value_collect_string, /* collect_value */ "p", /* lcopy_format */ value_lcopy_string, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_STRING, g_intern_static_string ("gchararray"), &info, &finfo, 0); g_assert (type == G_TYPE_STRING); } /* G_TYPE_POINTER */ { static const GTypeValueTable value_table = { value_init_pointer, /* value_init */ NULL, /* value_free */ value_copy_pointer, /* value_copy */ value_peek_pointer0, /* value_peek_pointer */ "p", /* collect_format */ value_collect_pointer, /* collect_value */ "p", /* lcopy_format */ value_lcopy_pointer, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_POINTER, g_intern_static_string ("gpointer"), &info, &finfo, 0); g_assert (type == G_TYPE_POINTER); } /* G_TYPE_VARIANT */ { static const GTypeValueTable value_table = { value_init_pointer, /* value_init */ value_free_variant, /* value_free */ value_copy_variant, /* value_copy */ value_peek_pointer0, /* value_peek_pointer */ "p", /* collect_format */ value_collect_variant, /* collect_value */ "p", /* lcopy_format */ value_lcopy_variant, /* lcopy_value */ }; info.value_table = &value_table; type = g_type_register_fundamental (G_TYPE_VARIANT, g_intern_static_string ("GVariant"), &info, &finfo, 0); g_assert (type == G_TYPE_VARIANT); } } /* --- GValue functions --- */ /** * g_value_set_char: * @value: a valid #GValue of type %G_TYPE_CHAR * @v_char: character value to be set * * Set the contents of a %G_TYPE_CHAR #GValue to @v_char. * Deprecated: 2.32: This function's input type is broken, see g_value_set_schar() */ void g_value_set_char (GValue *value, gchar v_char) { g_return_if_fail (G_VALUE_HOLDS_CHAR (value)); value->data[0].v_int = v_char; } /** * g_value_get_char: * @value: a valid #GValue of type %G_TYPE_CHAR * * Do not use this function; it is broken on platforms where the %char * type is unsigned, such as ARM and PowerPC. See g_value_get_schar(). * * Get the contents of a %G_TYPE_CHAR #GValue. * * Returns: character contents of @value * Deprecated: 2.32: This function's return type is broken, see g_value_get_schar() */ gchar g_value_get_char (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_CHAR (value), 0); return value->data[0].v_int; } /** * g_value_set_schar: * @value: a valid #GValue of type %G_TYPE_CHAR * @v_char: signed 8 bit integer to be set * * Set the contents of a %G_TYPE_CHAR #GValue to @v_char. * * Since: 2.32 */ void g_value_set_schar (GValue *value, gint8 v_char) { g_return_if_fail (G_VALUE_HOLDS_CHAR (value)); value->data[0].v_int = v_char; } /** * g_value_get_schar: * @value: a valid #GValue of type %G_TYPE_CHAR * * Get the contents of a %G_TYPE_CHAR #GValue. * * Returns: signed 8 bit integer contents of @value * Since: 2.32 */ gint8 g_value_get_schar (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_CHAR (value), 0); return value->data[0].v_int; } /** * g_value_set_uchar: * @value: a valid #GValue of type %G_TYPE_UCHAR * @v_uchar: unsigned character value to be set * * Set the contents of a %G_TYPE_UCHAR #GValue to @v_uchar. */ void g_value_set_uchar (GValue *value, guchar v_uchar) { g_return_if_fail (G_VALUE_HOLDS_UCHAR (value)); value->data[0].v_uint = v_uchar; } /** * g_value_get_uchar: * @value: a valid #GValue of type %G_TYPE_UCHAR * * Get the contents of a %G_TYPE_UCHAR #GValue. * * Returns: unsigned character contents of @value */ guchar g_value_get_uchar (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_UCHAR (value), 0); return value->data[0].v_uint; } /** * g_value_set_boolean: * @value: a valid #GValue of type %G_TYPE_BOOLEAN * @v_boolean: boolean value to be set * * Set the contents of a %G_TYPE_BOOLEAN #GValue to @v_boolean. */ void g_value_set_boolean (GValue *value, gboolean v_boolean) { g_return_if_fail (G_VALUE_HOLDS_BOOLEAN (value)); value->data[0].v_int = v_boolean != FALSE; } /** * g_value_get_boolean: * @value: a valid #GValue of type %G_TYPE_BOOLEAN * * Get the contents of a %G_TYPE_BOOLEAN #GValue. * * Returns: boolean contents of @value */ gboolean g_value_get_boolean (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_BOOLEAN (value), 0); return value->data[0].v_int; } /** * g_value_set_int: * @value: a valid #GValue of type %G_TYPE_INT * @v_int: integer value to be set * * Set the contents of a %G_TYPE_INT #GValue to @v_int. */ void g_value_set_int (GValue *value, gint v_int) { g_return_if_fail (G_VALUE_HOLDS_INT (value)); value->data[0].v_int = v_int; } /** * g_value_get_int: * @value: a valid #GValue of type %G_TYPE_INT * * Get the contents of a %G_TYPE_INT #GValue. * * Returns: integer contents of @value */ gint g_value_get_int (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_INT (value), 0); return value->data[0].v_int; } /** * g_value_set_uint: * @value: a valid #GValue of type %G_TYPE_UINT * @v_uint: unsigned integer value to be set * * Set the contents of a %G_TYPE_UINT #GValue to @v_uint. */ void g_value_set_uint (GValue *value, guint v_uint) { g_return_if_fail (G_VALUE_HOLDS_UINT (value)); value->data[0].v_uint = v_uint; } /** * g_value_get_uint: * @value: a valid #GValue of type %G_TYPE_UINT * * Get the contents of a %G_TYPE_UINT #GValue. * * Returns: unsigned integer contents of @value */ guint g_value_get_uint (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_UINT (value), 0); return value->data[0].v_uint; } /** * g_value_set_long: * @value: a valid #GValue of type %G_TYPE_LONG * @v_long: long integer value to be set * * Set the contents of a %G_TYPE_LONG #GValue to @v_long. */ void g_value_set_long (GValue *value, glong v_long) { g_return_if_fail (G_VALUE_HOLDS_LONG (value)); value->data[0].v_long = v_long; } /** * g_value_get_long: * @value: a valid #GValue of type %G_TYPE_LONG * * Get the contents of a %G_TYPE_LONG #GValue. * * Returns: long integer contents of @value */ glong g_value_get_long (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_LONG (value), 0); return value->data[0].v_long; } /** * g_value_set_ulong: * @value: a valid #GValue of type %G_TYPE_ULONG * @v_ulong: unsigned long integer value to be set * * Set the contents of a %G_TYPE_ULONG #GValue to @v_ulong. */ void g_value_set_ulong (GValue *value, gulong v_ulong) { g_return_if_fail (G_VALUE_HOLDS_ULONG (value)); value->data[0].v_ulong = v_ulong; } /** * g_value_get_ulong: * @value: a valid #GValue of type %G_TYPE_ULONG * * Get the contents of a %G_TYPE_ULONG #GValue. * * Returns: unsigned long integer contents of @value */ gulong g_value_get_ulong (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_ULONG (value), 0); return value->data[0].v_ulong; } /** * g_value_get_int64: * @value: a valid #GValue of type %G_TYPE_INT64 * * Get the contents of a %G_TYPE_INT64 #GValue. * * Returns: 64bit integer contents of @value */ void g_value_set_int64 (GValue *value, gint64 v_int64) { g_return_if_fail (G_VALUE_HOLDS_INT64 (value)); value->data[0].v_int64 = v_int64; } /** * g_value_set_int64: * @value: a valid #GValue of type %G_TYPE_INT64 * @v_int64: 64bit integer value to be set * * Set the contents of a %G_TYPE_INT64 #GValue to @v_int64. */ gint64 g_value_get_int64 (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_INT64 (value), 0); return value->data[0].v_int64; } /** * g_value_set_uint64: * @value: a valid #GValue of type %G_TYPE_UINT64 * @v_uint64: unsigned 64bit integer value to be set * * Set the contents of a %G_TYPE_UINT64 #GValue to @v_uint64. */ void g_value_set_uint64 (GValue *value, guint64 v_uint64) { g_return_if_fail (G_VALUE_HOLDS_UINT64 (value)); value->data[0].v_uint64 = v_uint64; } /** * g_value_get_uint64: * @value: a valid #GValue of type %G_TYPE_UINT64 * * Get the contents of a %G_TYPE_UINT64 #GValue. * * Returns: unsigned 64bit integer contents of @value */ guint64 g_value_get_uint64 (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_UINT64 (value), 0); return value->data[0].v_uint64; } /** * g_value_set_float: * @value: a valid #GValue of type %G_TYPE_FLOAT * @v_float: float value to be set * * Set the contents of a %G_TYPE_FLOAT #GValue to @v_float. */ void g_value_set_float (GValue *value, gfloat v_float) { g_return_if_fail (G_VALUE_HOLDS_FLOAT (value)); value->data[0].v_float = v_float; } /** * g_value_get_float: * @value: a valid #GValue of type %G_TYPE_FLOAT * * Get the contents of a %G_TYPE_FLOAT #GValue. * * Returns: float contents of @value */ gfloat g_value_get_float (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_FLOAT (value), 0); return value->data[0].v_float; } /** * g_value_set_double: * @value: a valid #GValue of type %G_TYPE_DOUBLE * @v_double: double value to be set * * Set the contents of a %G_TYPE_DOUBLE #GValue to @v_double. */ void g_value_set_double (GValue *value, gdouble v_double) { g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value)); value->data[0].v_double = v_double; } /** * g_value_get_double: * @value: a valid #GValue of type %G_TYPE_DOUBLE * * Get the contents of a %G_TYPE_DOUBLE #GValue. * * Returns: double contents of @value */ gdouble g_value_get_double (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_DOUBLE (value), 0); return value->data[0].v_double; } /** * g_value_set_string: * @value: a valid #GValue of type %G_TYPE_STRING * @v_string: (nullable): caller-owned string to be duplicated for the #GValue * * Set the contents of a %G_TYPE_STRING #GValue to @v_string. */ void g_value_set_string (GValue *value, const gchar *v_string) { gchar *new_val; g_return_if_fail (G_VALUE_HOLDS_STRING (value)); new_val = g_strdup (v_string); if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) value->data[1].v_uint = 0; else g_free (value->data[0].v_pointer); value->data[0].v_pointer = new_val; } /** * g_value_set_static_string: * @value: a valid #GValue of type %G_TYPE_STRING * @v_string: (nullable): static string to be set * * Set the contents of a %G_TYPE_STRING #GValue to @v_string. * The string is assumed to be static, and is thus not duplicated * when setting the #GValue. */ void g_value_set_static_string (GValue *value, const gchar *v_string) { g_return_if_fail (G_VALUE_HOLDS_STRING (value)); if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)) g_free (value->data[0].v_pointer); value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS; value->data[0].v_pointer = (gchar*) v_string; } /** * g_value_set_string_take_ownership: * @value: a valid #GValue of type %G_TYPE_STRING * @v_string: (nullable): duplicated unowned string to be set * * This is an internal function introduced mainly for C marshallers. * * Deprecated: 2.4: Use g_value_take_string() instead. */ void g_value_set_string_take_ownership (GValue *value, gchar *v_string) { g_value_take_string (value, v_string); } /** * g_value_take_string: * @value: a valid #GValue of type %G_TYPE_STRING * @v_string: (nullable): string to take ownership of * * Sets the contents of a %G_TYPE_STRING #GValue to @v_string. * * Since: 2.4 */ void g_value_take_string (GValue *value, gchar *v_string) { g_return_if_fail (G_VALUE_HOLDS_STRING (value)); if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) value->data[1].v_uint = 0; else g_free (value->data[0].v_pointer); value->data[0].v_pointer = v_string; } /** * g_value_get_string: * @value: a valid #GValue of type %G_TYPE_STRING * * Get the contents of a %G_TYPE_STRING #GValue. * * Returns: string content of @value */ const gchar* g_value_get_string (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL); return value->data[0].v_pointer; } /** * g_value_dup_string: * @value: a valid #GValue of type %G_TYPE_STRING * * Get a copy the contents of a %G_TYPE_STRING #GValue. * * Returns: a newly allocated copy of the string content of @value */ gchar* g_value_dup_string (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL); return g_strdup (value->data[0].v_pointer); } /** * g_value_set_pointer: * @value: a valid #GValue of %G_TYPE_POINTER * @v_pointer: pointer value to be set * * Set the contents of a pointer #GValue to @v_pointer. */ void g_value_set_pointer (GValue *value, gpointer v_pointer) { g_return_if_fail (G_VALUE_HOLDS_POINTER (value)); value->data[0].v_pointer = v_pointer; } /** * g_value_get_pointer: * @value: a valid #GValue of %G_TYPE_POINTER * * Get the contents of a pointer #GValue. * * Returns: (transfer none): pointer contents of @value */ gpointer g_value_get_pointer (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_POINTER (value), NULL); return value->data[0].v_pointer; } G_DEFINE_POINTER_TYPE (GType, g_gtype) /** * g_value_set_gtype: * @value: a valid #GValue of type %G_TYPE_GTYPE * @v_gtype: #GType to be set * * Set the contents of a %G_TYPE_GTYPE #GValue to @v_gtype. * * Since: 2.12 */ void g_value_set_gtype (GValue *value, GType v_gtype) { g_return_if_fail (G_VALUE_HOLDS_GTYPE (value)); value->data[0].v_pointer = GSIZE_TO_POINTER (v_gtype); } /** * g_value_get_gtype: * @value: a valid #GValue of type %G_TYPE_GTYPE * * Get the contents of a %G_TYPE_GTYPE #GValue. * * Since: 2.12 * * Returns: the #GType stored in @value */ GType g_value_get_gtype (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_GTYPE (value), 0); return GPOINTER_TO_SIZE (value->data[0].v_pointer); } /** * g_value_set_variant: * @value: a valid #GValue of type %G_TYPE_VARIANT * @variant: (nullable): a #GVariant, or %NULL * * Set the contents of a variant #GValue to @variant. * If the variant is floating, it is consumed. * * Since: 2.26 */ void g_value_set_variant (GValue *value, GVariant *variant) { GVariant *old_variant; g_return_if_fail (G_VALUE_HOLDS_VARIANT (value)); old_variant = value->data[0].v_pointer; if (variant) value->data[0].v_pointer = g_variant_ref_sink (variant); else value->data[0].v_pointer = NULL; if (old_variant) g_variant_unref (old_variant); } /** * g_value_take_variant: * @value: a valid #GValue of type %G_TYPE_VARIANT * @variant: (nullable) (transfer full): a #GVariant, or %NULL * * Set the contents of a variant #GValue to @variant, and takes over * the ownership of the caller's reference to @variant; * the caller doesn't have to unref it any more (i.e. the reference * count of the variant is not increased). * * If @variant was floating then its floating reference is converted to * a hard reference. * * If you want the #GValue to hold its own reference to @variant, use * g_value_set_variant() instead. * * This is an internal function introduced mainly for C marshallers. * * Since: 2.26 */ void g_value_take_variant (GValue *value, GVariant *variant) { GVariant *old_variant; g_return_if_fail (G_VALUE_HOLDS_VARIANT (value)); old_variant = value->data[0].v_pointer; if (variant) value->data[0].v_pointer = g_variant_take_ref (variant); else value->data[0].v_pointer = NULL; if (old_variant) g_variant_unref (old_variant); } /** * g_value_get_variant: * @value: a valid #GValue of type %G_TYPE_VARIANT * * Get the contents of a variant #GValue. * * Returns: variant contents of @value * * Since: 2.26 */ GVariant* g_value_get_variant (const GValue *value) { g_return_val_if_fail (G_VALUE_HOLDS_VARIANT (value), NULL); return value->data[0].v_pointer; } /** * g_value_dup_variant: * @value: a valid #GValue of type %G_TYPE_VARIANT * * Get the contents of a variant #GValue, increasing its refcount. * * Returns: variant contents of @value, should be unrefed using * g_variant_unref() when no longer needed * * Since: 2.26 */ GVariant* g_value_dup_variant (const GValue *value) { GVariant *variant; g_return_val_if_fail (G_VALUE_HOLDS_VARIANT (value), NULL); variant = value->data[0].v_pointer; if (variant) g_variant_ref_sink (variant); return variant; } /** * g_strdup_value_contents: * @value: #GValue which contents are to be described. * * Return a newly allocated string, which describes the contents of a * #GValue. The main purpose of this function is to describe #GValue * contents for debugging output, the way in which the contents are * described may change between different GLib versions. * * Returns: Newly allocated string. */ gchar* g_strdup_value_contents (const GValue *value) { const gchar *src; gchar *contents; g_return_val_if_fail (G_IS_VALUE (value), NULL); if (G_VALUE_HOLDS_STRING (value)) { src = g_value_get_string (value); if (!src) contents = g_strdup ("NULL"); else { gchar *s = g_strescape (src, NULL); contents = g_strdup_printf ("\"%s\"", s); g_free (s); } } else if (g_value_type_transformable (G_VALUE_TYPE (value), G_TYPE_STRING)) { GValue tmp_value = G_VALUE_INIT; gchar *s; g_value_init (&tmp_value, G_TYPE_STRING); g_value_transform (value, &tmp_value); s = g_strescape (g_value_get_string (&tmp_value), NULL); g_value_unset (&tmp_value); if (G_VALUE_HOLDS_ENUM (value) || G_VALUE_HOLDS_FLAGS (value)) contents = g_strdup_printf ("((%s) %s)", g_type_name (G_VALUE_TYPE (value)), s); else contents = g_strdup (s ? s : "NULL"); g_free (s); } else if (g_value_fits_pointer (value)) { gpointer p = g_value_peek_pointer (value); if (!p) contents = g_strdup ("NULL"); else if (G_VALUE_HOLDS_OBJECT (value)) contents = g_strdup_printf ("((%s*) %p)", G_OBJECT_TYPE_NAME (p), p); else if (G_VALUE_HOLDS_PARAM (value)) contents = g_strdup_printf ("((%s*) %p)", G_PARAM_SPEC_TYPE_NAME (p), p); else if (G_VALUE_HOLDS (value, G_TYPE_STRV)) { GStrv strv = g_value_get_boxed (value); GString *tmp = g_string_new ("["); while (*strv != NULL) { gchar *escaped = g_strescape (*strv, NULL); g_string_append_printf (tmp, "\"%s\"", escaped); g_free (escaped); if (*++strv != NULL) g_string_append (tmp, ", "); } g_string_append (tmp, "]"); contents = g_string_free (tmp, FALSE); } else if (G_VALUE_HOLDS_BOXED (value)) contents = g_strdup_printf ("((%s*) %p)", g_type_name (G_VALUE_TYPE (value)), p); else if (G_VALUE_HOLDS_POINTER (value)) contents = g_strdup_printf ("((gpointer) %p)", p); else contents = g_strdup ("???"); } else contents = g_strdup ("???"); return contents; } /** * g_pointer_type_register_static: * @name: the name of the new pointer type. * * Creates a new %G_TYPE_POINTER derived type id for a new * pointer type with name @name. * * Returns: a new %G_TYPE_POINTER derived type id for @name. */ GType g_pointer_type_register_static (const gchar *name) { 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 */ NULL /* value_table */ }; GType type; g_return_val_if_fail (name != NULL, 0); g_return_val_if_fail (g_type_from_name (name) == 0, 0); type = g_type_register_static (G_TYPE_POINTER, name, &type_info, 0); return type; }