src/startup.c

   1 /* $Id$
   2  * UDP Gateway utility startup scripts support
   3  * Copyright (C) 2004 Jan Kratochvil <project-udpgate@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include <glib/gmessages.h>
  23
  24 #include "startup.h"    /* self */
  25 #include "startup-lsb.h"
  26 #include "startup-chkconfig.h"
  27 #include "startup-debian.h"
  28
  29
  30 gboolean udpgate_startup_query(UdpgateStartup *udpgate_startup,gboolean *is_on)
  31 {
  32         g_return_val_if_fail(UDPGATE_IS_STARTUP(udpgate_startup),FALSE);
  33
  34         return (*UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->query)(udpgate_startup,is_on);
  35 }
  36
  37 gboolean udpgate_startup_on(UdpgateStartup *udpgate_startup)
  38 {
  39 gboolean is_on;
  40
  41         g_return_val_if_fail(UDPGATE_IS_STARTUP(udpgate_startup),FALSE);
  42
  43         if (!udpgate_startup_query(udpgate_startup,&is_on))
  44                 return FALSE;
  45         if (is_on==TRUE)
  46                 return TRUE;
  47
  48         if (!(*UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->on)(udpgate_startup))
  49                 return FALSE;
  50         if (!udpgate_startup_query(udpgate_startup,&is_on))
  51                 return FALSE;
  52         if (is_on!=TRUE) {
  53                 g_warning(_("Error registering automatic program startup!"));
  54                 return FALSE;
  55                 }
  56         return TRUE;
  57 }
  58
  59 gboolean udpgate_startup_off(UdpgateStartup *udpgate_startup)
  60 {
  61 gboolean is_on;
  62
  63         g_return_val_if_fail(UDPGATE_IS_STARTUP(udpgate_startup),FALSE);
  64
  65         if (!udpgate_startup_query(udpgate_startup,&is_on))
  66                 return FALSE;
  67         if (is_on==FALSE)
  68                 return TRUE;
  69
  70         if (!(*UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->off)(udpgate_startup))
  71                 return FALSE;
  72         if (!udpgate_startup_query(udpgate_startup,&is_on))
  73                 return FALSE;
  74         if (is_on!=FALSE) {
  75                 g_warning(_("Error removing program's system startup registrance!"));
  76                 return FALSE;
  77                 }
  78         return TRUE;
  79 }
  80
  81 UdpgateStartup *udpgate_startup_new(void)
  82 {
  83         const GType impl_type_array[]={
  84                 UDPGATE_TYPE_STARTUP_LSB,
  85                 UDPGATE_TYPE_STARTUP_CHKCONFIG,
  86                 UDPGATE_TYPE_STARTUP_DEBIAN,
  87                 };
  88         const GType *impl_type_pointer;
  89
  90         for (impl_type_pointer = impl_type_array;
  91              impl_type_pointer < impl_type_array + G_N_ELEMENTS(impl_type_array);
  92              impl_type_pointer++) {
  93                 UdpgateStartup *udpgate_startup;
  94
  95                 udpgate_startup=g_object_new(*impl_type_pointer,NULL);
  96                 g_assert(UDPGATE_IS_STARTUP(udpgate_startup));
  97                 if (UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->init(udpgate_startup))
  98                         return udpgate_startup;
  99                 g_object_unref(udpgate_startup);
 100         }
 101
 102         return NULL;
 103 }
 104
 105 static void
 106 udpgate_startup_class_init (UdpgateStartupClass *class)
 107 {
 108 }
 109
 110 GType
 111 udpgate_startup_get_type(void)
 112 {
 113   static GType startup_type=0;
 114
 115   if (!startup_type) {
 116                 static const GTypeInfo startup_info={
 117                         sizeof(UdpgateStartupClass),
 118                         NULL,           /* base_init */
 119                         NULL,           /* base_finalize */
 120                         (GClassInitFunc)udpgate_startup_class_init,
 121                         NULL,           /* class_finalize */
 122                         NULL,           /* class_data */
 123                         sizeof(UdpgateStartup),
 124                         0,              /* n_preallocs */
 125                         NULL,           /* instance_init */
 126                         NULL,           /* value_table */
 127       };
 128
 129                 startup_type=g_type_register_static(G_TYPE_OBJECT,"UdpgateStartup",
 130                                  &startup_info,G_TYPE_FLAG_ABSTRACT);
 131     }
 132
 133   return startup_type;
 134 }