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glib/gio/gdbusmessage.h
Philip Withnall 96c317418a gdbusconnection: Support matching object paths with arg0 matching 
GDBus has always supported matching strings with arg0 matching
(`G_DBUS_SIGNAL_FLAGS_MATCH_ARG0_PATH`). In D-Bus 1.5, support was added
to the spec for also matching object paths. This got forgotten about and
was never added to GDBus, meaning that
`G_DBUS_SIGNAL_FLAGS_MATCH_ARG0_PATH` won’t match against a signal arg0
of type `o`.

Fix that, and add a unit test.

To do so, we need to add a new `g_dbus_message_get_arg0_path()` API to
complement the existing `g_dbus_message_get_arg0()` API. The approach of
letting `g_dbus_message_get_arg0()` return an object-path *or* a string
would not work, as it’s also called in the implementation of
`G_DBUS_SIGNAL_FLAGS_MATCH_ARG0_NAMESPACE`, which must only match
string-typed arg0 values and not object-path-typed ones.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Fixes: #3183
2023-11-28 14:42:41 +00:00

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/* GDBus - GLib D-Bus Library
*
* Copyright (C) 2008-2010 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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 <http://www.gnu.org/licenses/>.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#ifndef __G_DBUS_MESSAGE_H__
#define __G_DBUS_MESSAGE_H__
#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif
#include <gio/giotypes.h>
G_BEGIN_DECLS
#define G_TYPE_DBUS_MESSAGE (g_dbus_message_get_type ())
#define G_DBUS_MESSAGE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_DBUS_MESSAGE, GDBusMessage))
#define G_IS_DBUS_MESSAGE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_DBUS_MESSAGE))
GIO_AVAILABLE_IN_ALL
GType g_dbus_message_get_type (void) G_GNUC_CONST;
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new (void);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_signal (const gchar *path,
const gchar *interface_,
const gchar *signal);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_method_call (const gchar *name,
const gchar *path,
const gchar *interface_,
const gchar *method);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_method_reply (GDBusMessage *method_call_message);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_method_error (GDBusMessage *method_call_message,
const gchar *error_name,
const gchar *error_message_format,
...) G_GNUC_PRINTF(3, 4);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_method_error_valist (GDBusMessage *method_call_message,
const gchar *error_name,
const gchar *error_message_format,
va_list var_args);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_method_error_literal (GDBusMessage *method_call_message,
const gchar *error_name,
const gchar *error_message);
GIO_AVAILABLE_IN_ALL
gchar *g_dbus_message_print (GDBusMessage *message,
guint indent);
GIO_AVAILABLE_IN_ALL
gboolean g_dbus_message_get_locked (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_lock (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_copy (GDBusMessage *message,
GError **error);
GIO_AVAILABLE_IN_ALL
GDBusMessageByteOrder g_dbus_message_get_byte_order (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_byte_order (GDBusMessage *message,
GDBusMessageByteOrder byte_order);
GIO_AVAILABLE_IN_ALL
GDBusMessageType g_dbus_message_get_message_type (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_message_type (GDBusMessage *message,
GDBusMessageType type);
GIO_AVAILABLE_IN_ALL
GDBusMessageFlags g_dbus_message_get_flags (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_flags (GDBusMessage *message,
GDBusMessageFlags flags);
GIO_AVAILABLE_IN_ALL
guint32 g_dbus_message_get_serial (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_serial (GDBusMessage *message,
guint32 serial);
GIO_AVAILABLE_IN_ALL
GVariant *g_dbus_message_get_header (GDBusMessage *message,
GDBusMessageHeaderField header_field);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_header (GDBusMessage *message,
GDBusMessageHeaderField header_field,
GVariant *value);
GIO_AVAILABLE_IN_ALL
guchar *g_dbus_message_get_header_fields (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
GVariant *g_dbus_message_get_body (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_body (GDBusMessage *message,
GVariant *body);
#ifdef G_OS_UNIX
GIO_AVAILABLE_IN_ALL
GUnixFDList *g_dbus_message_get_unix_fd_list (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_unix_fd_list (GDBusMessage *message,
GUnixFDList *fd_list);
#endif /* G_OS_UNIX */
GIO_AVAILABLE_IN_ALL
guint32 g_dbus_message_get_reply_serial (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_reply_serial (GDBusMessage *message,
guint32 value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_interface (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_interface (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_member (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_member (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_path (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_path (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_sender (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_sender (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_destination (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_destination (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_error_name (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_error_name (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_signature (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_signature (GDBusMessage *message,
const gchar *value);
GIO_AVAILABLE_IN_ALL
guint32 g_dbus_message_get_num_unix_fds (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
void g_dbus_message_set_num_unix_fds (GDBusMessage *message,
guint32 value);
GIO_AVAILABLE_IN_ALL
const gchar *g_dbus_message_get_arg0 (GDBusMessage *message);
GIO_AVAILABLE_IN_2_80
const gchar *g_dbus_message_get_arg0_path (GDBusMessage *message);
GIO_AVAILABLE_IN_ALL
GDBusMessage *g_dbus_message_new_from_blob (guchar *blob,
gsize blob_len,
GDBusCapabilityFlags capabilities,
GError **error);
GIO_AVAILABLE_IN_ALL
gssize g_dbus_message_bytes_needed (guchar *blob,
gsize blob_len,
GError **error);
GIO_AVAILABLE_IN_ALL
guchar *g_dbus_message_to_blob (GDBusMessage *message,
gsize *out_size,
GDBusCapabilityFlags capabilities,
GError **error);
GIO_AVAILABLE_IN_ALL
gboolean g_dbus_message_to_gerror (GDBusMessage *message,
GError **error);
G_END_DECLS
#endif /* __G_DBUS_MESSAGE_H__ */
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