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         return (*UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->on)(udpgate_startup);
  49 }
  50
  51 gboolean udpgate_startup_off(UdpgateStartup *udpgate_startup)
  52 {
  53 gboolean is_on;
  54
  55         g_return_val_if_fail(UDPGATE_IS_STARTUP(udpgate_startup),FALSE);
  56
  57         if (!udpgate_startup_query(udpgate_startup,&is_on))
  58                 return FALSE;
  59         if (is_on==FALSE)
  60                 return TRUE;
  61
  62         return (*UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->off)(udpgate_startup);
  63 }
  64
  65 UdpgateStartup *udpgate_startup_new(void)
  66 {
  67         const GType impl_type_array[]={
  68                 UDPGATE_TYPE_STARTUP_LSB,
  69                 UDPGATE_TYPE_STARTUP_CHKCONFIG,
  70                 UDPGATE_TYPE_STARTUP_DEBIAN,
  71                 };
  72         const GType *impl_type_pointer;
  73
  74         for (impl_type_pointer = impl_type_array;
  75              impl_type_pointer < impl_type_array + G_N_ELEMENTS(impl_type_array);
  76              impl_type_pointer++) {
  77                 UdpgateStartup *udpgate_startup;
  78
  79                 udpgate_startup=g_object_new(*impl_type_pointer,NULL);
  80                 g_assert(UDPGATE_IS_STARTUP(udpgate_startup));
  81                 if (UDPGATE_STARTUP_GET_CLASS(udpgate_startup)->init(udpgate_startup))
  82                         return udpgate_startup;
  83                 g_object_unref(udpgate_startup);
  84         }
  85
  86         return NULL;
  87 }
  88
  89 static void
  90 udpgate_startup_class_init (UdpgateStartupClass *class)
  91 {
  92 }
  93
  94 GType
  95 udpgate_startup_get_type(void)
  96 {
  97   static GType startup_type=0;
  98
  99   if (!startup_type) {
 100                 static const GTypeInfo startup_info={
 101                         sizeof(UdpgateStartupClass),
 102                         NULL,           /* base_init */
 103                         NULL,           /* base_finalize */
 104                         (GClassInitFunc)udpgate_startup_class_init,
 105                         NULL,           /* class_finalize */
 106                         NULL,           /* class_data */
 107                         sizeof(UdpgateStartup),
 108                         0,              /* n_preallocs */
 109                         NULL,           /* instance_init */
 110                         NULL,           /* value_table */
 111       };
 112
 113                 startup_type=g_type_register_static(G_TYPE_OBJECT,"UdpgateStartup",
 114                                  &startup_info,G_TYPE_FLAG_ABSTRACT);
 115     }
 116
 117   return startup_type;
 118 }