dbus/signal.h

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2008, 2009 Nedko Arnaudov <nedko@arnaudov.name>
   6  * Copyright (C) 2008 Juuso Alasuutari <juuso.alasuutari@gmail.com>
   7  *
   8  **************************************************************************
   9  * This file contains interface to D-Bus signal helpers
  10  **************************************************************************
  11  *
  12  * LADI Session Handler is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * LADI Session Handler is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  24  * or write to the Free Software Foundation, Inc.,
  25  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  26  */
  27
  28 #ifndef __LASH_DBUS_SIGNAL_H__
  29 #define __LASH_DBUS_SIGNAL_H__
  30
  31 #include <dbus/dbus.h>
  32
  33 #include "types.h"
  34
  35 struct _signal_msg
  36 {
  37   DBusConnection *connection;
  38   DBusMessage    *message;
  39 };
  40
  41 struct _signal_arg
  42 {
  43   const char *name;
  44   const char *type;
  45 };
  46
  47 struct _signal
  48 {
  49   const char         *name;
  50   const signal_arg_t *args;
  51 };
  52
  53 void
  54 signal_new_single(
  55   DBusConnection * connection_ptr,
  56   const char * path,
  57   const char * interface,
  58   const char * name,
  59   int type,
  60   const void * arg);
  61
  62 void
  63 signal_new_valist(
  64   DBusConnection * connection_ptr,
  65   const char * path,
  66   const char * interface,
  67   const char * name,
  68   int type,
  69   ...);
  70
  71 #define SIGNAL_ARGS_BEGIN(signal_name, descr)                  \
  72 static const struct _signal_arg signal_name ## _args_dtor[] =  \
  73 {
  74
  75 #define SIGNAL_ARG_DESCRIBE(arg_name, arg_type, descr)         \
  76         {                                                      \
  77                 .name = arg_name,                              \
  78                 .type = arg_type                               \
  79         },
  80
  81 #define SIGNAL_ARGS_END                                        \
  82         {                                                      \
  83                 .name = NULL,                                  \
  84                 .type = NULL                                   \
  85         }                                                      \
  86 };
  87
  88 #define SIGNALS_BEGIN                                          \
  89 static const struct _signal signals_dtor[] =                   \
  90 {
  91
  92 #define SIGNAL_DESCRIBE(signal_name)                           \
  93         {                                                      \
  94                 .name = # signal_name,                         \
  95                 .args = signal_name ## _args_dtor              \
  96         },
  97
  98 #define SIGNALS_END                                            \
  99         {                                                      \
 100                 .name = NULL,                                  \
 101                 .args = NULL                                   \
 102         }                                                      \
 103 };
 104
 105 #endif /* __LASH_DBUS_SIGNAL_H__ */