1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
3 * LADI Session Handler (ladish)
5 * Copyright (C) 2009 Nedko Arnaudov <nedko@arnaudov.name>
6 * Copyright (C) 2008 Juuso Alasuutari <juuso.alasuutari@gmail.com>
8 **************************************************************************
9 * This file contains D-Bus signal helpers
10 **************************************************************************
12 * Licensed under the Academic Free License version 2.1
14 * LADI Session Handler is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * LADI Session Handler is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
26 * or write to the Free Software Foundation, Inc.,
27 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include "../common.h"
34 static void dbus_signal_send(DBusConnection
* connection_ptr
, DBusMessage
* message_ptr
)
36 if (!dbus_connection_send(connection_ptr
, message_ptr
, NULL
))
38 log_error("Ran out of memory trying to queue signal");
41 dbus_connection_flush(connection_ptr
);
46 DBusConnection
* connection_ptr
,
48 const char * interface
,
50 const char * signature
,
53 DBusMessage
* message_ptr
;
56 DBusSignatureIter sig_iter
;
60 log_debug("Sending signal %s.%s from %s", interface
, name
, path
);
62 va_start(ap
, signature
);
64 if (signature
!= NULL
)
66 if (!dbus_signature_validate(signature
, NULL
))
68 log_error("signature '%s' is invalid", signature
);
72 dbus_signature_iter_init(&sig_iter
, signature
);
74 message_ptr
= dbus_message_new_signal(path
, interface
, name
);
75 if (message_ptr
== NULL
)
77 log_error("dbus_message_new_signal() failed.");
81 dbus_message_iter_init_append(message_ptr
, &iter
);
83 while (*signature
!= '\0')
85 type
= dbus_signature_iter_get_current_type(&sig_iter
);
86 if (!dbus_type_is_basic(type
))
88 log_error("non-basic input parameter '%c' (%d)", *signature
, type
);
92 parameter_ptr
= va_arg(ap
, void *);
94 if (!dbus_message_iter_append_basic(&iter
, type
, parameter_ptr
))
96 log_error("dbus_message_iter_append_basic() failed.");
100 dbus_signature_iter_next(&sig_iter
);
104 dbus_signal_send(connection_ptr
, message_ptr
);
107 dbus_message_unref(message_ptr
);
111 message_ptr
= va_arg(ap
, DBusMessage
*);
112 dbus_signal_send(connection_ptr
, message_ptr
);