1 /* GDBus - GLib D-Bus Library
3 * Copyright (C) 2008-2010 Red Hat, Inc.
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.
20 * Author: David Zeuthen <davidz@redhat.com>
25 #include "gdbusobject.h"
26 #include "gdbusinterface.h"
27 #include "gio-marshal.h"
32 * SECTION:gdbusinterface
33 * @short_description: Base type for D-Bus interfaces
36 * The #GDBusInterface type is the base type for D-Bus interfaces both
37 * on the service side (see #GDBusInterfaceStub) and client side (see
41 typedef GDBusInterfaceIface GDBusInterfaceInterface;
42 G_DEFINE_INTERFACE (GDBusInterface, g_dbus_interface, G_TYPE_OBJECT)
45 g_dbus_interface_default_init (GDBusInterfaceIface *iface)
49 /* ---------------------------------------------------------------------------------------------------- */
52 * g_dbus_interface_get_info:
53 * @interface: An exported D-Bus interface.
55 * Gets D-Bus introspection information for the D-Bus interface
56 * implemented by @interface.
58 * Returns: (transfer none): A #GDBusInterfaceInfo. Do not free.
63 g_dbus_interface_get_info (GDBusInterface *interface)
65 g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface), NULL);
66 return G_DBUS_INTERFACE_GET_IFACE (interface)->get_info (interface);
70 * g_dbus_interface_get_object:
71 * @interface: An exported D-Bus interface.
73 * Gets the #GDBusObject that @interface belongs to, if any.
75 * Returns: (transfer none): A #GDBusObject or %NULL. The returned
76 * reference belongs to @interface and should not be freed.
81 g_dbus_interface_get_object (GDBusInterface *interface)
83 g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface), NULL);
84 return G_DBUS_INTERFACE_GET_IFACE (interface)->get_object (interface);
88 * g_dbus_interface_set_object:
89 * @interface: An exported D-Bus interface.
90 * @object: A #GDBusObject or %NULL.
92 * Sets the #GDBusObject for @interface to @object.
94 * Note that @interface will hold a weak reference to @object.
99 g_dbus_interface_set_object (GDBusInterface *interface,
102 g_return_if_fail (G_IS_DBUS_INTERFACE (interface));
103 g_return_if_fail (object == NULL || G_IS_DBUS_OBJECT (object));
104 G_DBUS_INTERFACE_GET_IFACE (interface)->set_object (interface, object);
107 /* Keep it here for now. TODO: move */
112 * g_dbus_gvariant_to_gvalue:
113 * @value: A #GVariant.
114 * @out_gvalue: Return location for the #GValue.
116 * Convert a #GVariant to a #GValue. If @value is floating, it is consumed.
118 * Note that the passed @out_gvalue does not have to have a #GType set.
120 * Returns: %TRUE if the conversion succeeded, %FALSE otherwise.
125 g_dbus_gvariant_to_gvalue (GVariant *value,
129 const GVariantType *type;
132 g_return_val_if_fail (value != NULL, FALSE);
133 g_return_val_if_fail (out_gvalue != NULL, FALSE);
137 memset (out_gvalue, '\0', sizeof (GValue));
139 switch (g_variant_classify (value))
141 case G_VARIANT_CLASS_BOOLEAN:
142 g_value_init (out_gvalue, G_TYPE_BOOLEAN);
143 g_value_set_boolean (out_gvalue, g_variant_get_boolean (value));
146 case G_VARIANT_CLASS_BYTE:
147 g_value_init (out_gvalue, G_TYPE_UCHAR);
148 g_value_set_uchar (out_gvalue, g_variant_get_byte (value));
151 case G_VARIANT_CLASS_INT16:
152 g_value_init (out_gvalue, G_TYPE_INT);
153 g_value_set_int (out_gvalue, g_variant_get_int16 (value));
156 case G_VARIANT_CLASS_UINT16:
157 g_value_init (out_gvalue, G_TYPE_UINT);
158 g_value_set_uint (out_gvalue, g_variant_get_uint16 (value));
161 case G_VARIANT_CLASS_INT32:
162 g_value_init (out_gvalue, G_TYPE_INT);
163 g_value_set_int (out_gvalue, g_variant_get_int32 (value));
166 case G_VARIANT_CLASS_UINT32:
167 g_value_init (out_gvalue, G_TYPE_UINT);
168 g_value_set_uint (out_gvalue, g_variant_get_uint32 (value));
171 case G_VARIANT_CLASS_INT64:
172 g_value_init (out_gvalue, G_TYPE_INT64);
173 g_value_set_int64 (out_gvalue, g_variant_get_int64 (value));
176 case G_VARIANT_CLASS_UINT64:
177 g_value_init (out_gvalue, G_TYPE_UINT64);
178 g_value_set_uint64 (out_gvalue, g_variant_get_uint64 (value));
181 case G_VARIANT_CLASS_HANDLE:
182 g_value_init (out_gvalue, G_TYPE_INT);
183 g_value_set_int (out_gvalue, g_variant_get_int32 (value));
186 case G_VARIANT_CLASS_DOUBLE:
187 g_value_init (out_gvalue, G_TYPE_DOUBLE);
188 g_value_set_double (out_gvalue, g_variant_get_double (value));
191 case G_VARIANT_CLASS_STRING:
192 g_value_init (out_gvalue, G_TYPE_STRING);
193 g_value_set_string (out_gvalue, g_variant_get_string (value, NULL));
196 case G_VARIANT_CLASS_OBJECT_PATH:
197 g_value_init (out_gvalue, G_TYPE_STRING);
198 g_value_set_string (out_gvalue, g_variant_get_string (value, NULL));
201 case G_VARIANT_CLASS_SIGNATURE:
202 g_value_init (out_gvalue, G_TYPE_STRING);
203 g_value_set_string (out_gvalue, g_variant_get_string (value, NULL));
206 case G_VARIANT_CLASS_ARRAY:
207 type = g_variant_get_type (value);
208 switch (g_variant_type_peek_string (type)[1])
210 case G_VARIANT_CLASS_BYTE:
211 g_value_init (out_gvalue, G_TYPE_STRING);
212 g_value_set_string (out_gvalue, g_variant_get_bytestring (value));
215 case G_VARIANT_CLASS_STRING:
216 g_value_init (out_gvalue, G_TYPE_STRV);
217 array = g_variant_dup_strv (value, NULL);
218 g_value_take_boxed (out_gvalue, array);
221 case G_VARIANT_CLASS_ARRAY:
222 switch (g_variant_type_peek_string (type)[2])
224 case G_VARIANT_CLASS_BYTE:
225 g_value_init (out_gvalue, G_TYPE_STRV);
226 array = g_variant_dup_bytestring_array (value, NULL);
227 g_value_take_boxed (out_gvalue, array);
231 g_value_init (out_gvalue, G_TYPE_VARIANT);
232 g_value_set_variant (out_gvalue, value);
238 g_value_init (out_gvalue, G_TYPE_VARIANT);
239 g_value_set_variant (out_gvalue, value);
244 case G_VARIANT_CLASS_VARIANT:
245 case G_VARIANT_CLASS_MAYBE:
246 case G_VARIANT_CLASS_TUPLE:
247 case G_VARIANT_CLASS_DICT_ENTRY:
248 g_value_init (out_gvalue, G_TYPE_VARIANT);
249 g_value_set_variant (out_gvalue, value);
260 * g_dbus_gvalue_to_gvariant:
261 * @gvalue: A #GValue to convert to a #GVariant.
262 * @expected_type: The #GVariantType to create.
264 * Convert a #GValue to #GVariant.
266 * Returns: A #GVariant (never floating) holding the data from @gvalue
267 * or %NULL in case of error. Free with g_variant_unref().
272 g_dbus_gvalue_to_gvariant (const GValue *gvalue,
273 const GVariantType *expected_type)
277 const gchar * const *as;
278 const gchar *empty_strv[1] = {NULL};
280 g_return_val_if_fail (gvalue != NULL, NULL);
281 g_return_val_if_fail (expected_type != NULL, NULL);
285 /* The expected type could easily be e.g. "s" with the GValue holding a string.
286 * because of the UseGVariant annotation
288 if (G_VALUE_TYPE (gvalue) == G_TYPE_VARIANT)
290 ret = g_value_dup_variant (gvalue);
294 switch (g_variant_type_peek_string (expected_type)[0])
296 case G_VARIANT_CLASS_BOOLEAN:
297 ret = g_variant_ref_sink (g_variant_new_boolean (g_value_get_boolean (gvalue)));
300 case G_VARIANT_CLASS_BYTE:
301 ret = g_variant_ref_sink (g_variant_new_byte (g_value_get_uchar (gvalue)));
304 case G_VARIANT_CLASS_INT16:
305 ret = g_variant_ref_sink (g_variant_new_int16 (g_value_get_int (gvalue)));
308 case G_VARIANT_CLASS_UINT16:
309 ret = g_variant_ref_sink (g_variant_new_uint16 (g_value_get_uint (gvalue)));
312 case G_VARIANT_CLASS_INT32:
313 ret = g_variant_ref_sink (g_variant_new_int32 (g_value_get_int (gvalue)));
316 case G_VARIANT_CLASS_UINT32:
317 ret = g_variant_ref_sink (g_variant_new_uint32 (g_value_get_uint (gvalue)));
320 case G_VARIANT_CLASS_INT64:
321 ret = g_variant_ref_sink (g_variant_new_int64 (g_value_get_int64 (gvalue)));
324 case G_VARIANT_CLASS_UINT64:
325 ret = g_variant_ref_sink (g_variant_new_uint64 (g_value_get_uint64 (gvalue)));
328 case G_VARIANT_CLASS_HANDLE:
329 ret = g_variant_ref_sink (g_variant_new_handle (g_value_get_int (gvalue)));
332 case G_VARIANT_CLASS_DOUBLE:
333 ret = g_variant_ref_sink (g_variant_new_double (g_value_get_double (gvalue)));
336 case G_VARIANT_CLASS_STRING:
337 s = g_value_get_string (gvalue);
340 ret = g_variant_ref_sink (g_variant_new_string (s));
343 case G_VARIANT_CLASS_OBJECT_PATH:
344 s = g_value_get_string (gvalue);
347 ret = g_variant_ref_sink (g_variant_new_object_path (s));
350 case G_VARIANT_CLASS_SIGNATURE:
351 s = g_value_get_string (gvalue);
354 ret = g_variant_ref_sink (g_variant_new_signature (s));
357 case G_VARIANT_CLASS_ARRAY:
358 switch (g_variant_type_peek_string (expected_type)[1])
360 case G_VARIANT_CLASS_BYTE:
361 s = g_value_get_string (gvalue);
364 ret = g_variant_ref_sink (g_variant_new_bytestring (s));
367 case G_VARIANT_CLASS_STRING:
368 as = g_value_get_boxed (gvalue);
371 ret = g_variant_ref_sink (g_variant_new_strv (as, -1));
374 case G_VARIANT_CLASS_ARRAY:
375 switch (g_variant_type_peek_string (expected_type)[2])
377 case G_VARIANT_CLASS_BYTE:
378 as = g_value_get_boxed (gvalue);
381 ret = g_variant_ref_sink (g_variant_new_bytestring_array (as, -1));
385 ret = g_value_dup_variant (gvalue);
391 ret = g_value_dup_variant (gvalue);
397 case G_VARIANT_CLASS_VARIANT:
398 case G_VARIANT_CLASS_MAYBE:
399 case G_VARIANT_CLASS_TUPLE:
400 case G_VARIANT_CLASS_DICT_ENTRY:
401 ret = g_value_dup_variant (gvalue);
406 /* Could be that the GValue is holding a NULL GVariant - in that case,
407 * we return an "empty" GVariant instead of a NULL GVariant
411 GVariant *untrusted_empty;
412 untrusted_empty = g_variant_new_from_data (expected_type, NULL, 0, FALSE, NULL, NULL);
413 ret = g_variant_ref_sink (g_variant_get_normal_form (untrusted_empty));
414 g_variant_unref (untrusted_empty);
417 g_assert (!g_variant_is_floating (ret));