git.maemo.org Git - connman/blob - src/service.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include "connman.h"
  27
  28 static DBusConnection *connection = NULL;
  29
  30 static GSequence *service_list = NULL;
  31 static GHashTable *service_hash = NULL;
  32
  33 struct connman_service {
  34         gint refcount;
  35         char *identifier;
  36         char *path;
  37         enum connman_service_type type;
  38         enum connman_service_mode mode;
  39         enum connman_service_security security;
  40         enum connman_service_state state;
  41         connman_uint8_t strength;
  42         connman_bool_t favorite;
  43         char *name;
  44 };
  45
  46 static void service_free(gpointer data)
  47 {
  48         struct connman_service *service = data;
  49
  50         DBG("service %p", service);
  51
  52         g_hash_table_remove(service_hash, service->identifier);
  53
  54         g_free(service->name);
  55         g_free(service->path);
  56         g_free(service->identifier);
  57         g_free(service);
  58 }
  59
  60 void connman_service_put(struct connman_service *service)
  61 {
  62         DBG("service %p", service);
  63
  64         if (g_atomic_int_dec_and_test(&service->refcount) == TRUE) {
  65                 GSequenceIter *iter;
  66
  67                 iter = g_hash_table_lookup(service_hash, service->identifier);
  68                 if (iter != NULL)
  69                         g_sequence_remove(iter);
  70                 else
  71                         service_free(service);
  72         }
  73 }
  74
  75 static void __connman_service_initialize(struct connman_service *service)
  76 {
  77         DBG("service %p", service);
  78
  79         service->refcount = 1;
  80
  81         service->type     = CONNMAN_SERVICE_TYPE_UNKNOWN;
  82         service->mode     = CONNMAN_SERVICE_MODE_UNKNOWN;
  83         service->security = CONNMAN_SERVICE_SECURITY_UNKNOWN;
  84         service->state    = CONNMAN_SERVICE_STATE_UNKNOWN;
  85
  86         service->favorite = FALSE;
  87 }
  88
  89 /**
  90  * connman_service_create:
  91  *
  92  * Allocate a new service.
  93  *
  94  * Returns: a newly-allocated #connman_service structure
  95  */
  96 struct connman_service *connman_service_create(void)
  97 {
  98         struct connman_service *service;
  99
 100         service = g_try_new0(struct connman_service, 1);
 101         if (service == NULL)
 102                 return NULL;
 103
 104         DBG("service %p", service);
 105
 106         __connman_service_initialize(service);
 107
 108         return service;
 109 }
 110
 111 /**
 112  * connman_service_ref:
 113  * @service: service structure
 114  *
 115  * Increase reference counter of service
 116  */
 117 struct connman_service *connman_service_ref(struct connman_service *service)
 118 {
 119         g_atomic_int_inc(&service->refcount);
 120
 121         return service;
 122 }
 123
 124 /**
 125  * connman_service_unref:
 126  * @service: service structure
 127  *
 128  * Decrease reference counter of service
 129  */
 130 void connman_service_unref(struct connman_service *service)
 131 {
 132         connman_service_put(service);
 133 }
 134
 135 static gint service_compare(gconstpointer a, gconstpointer b,
 136                                                         gpointer user_data)
 137 {
 138         struct connman_service *service_a = (void *) a;
 139         struct connman_service *service_b = (void *) b;
 140
 141         if (service_a->favorite == TRUE && service_b->favorite == FALSE)
 142                 return -1;
 143
 144         if (service_a->favorite == FALSE && service_b->favorite == TRUE)
 145                 return 1;
 146
 147         return (gint) service_b->strength - (gint) service_a->strength;
 148 }
 149
 150 struct connman_service *connman_service_get(const char *identifier)
 151 {
 152         struct connman_service *service;
 153         GSequenceIter *iter;
 154
 155         iter = g_hash_table_lookup(service_hash, identifier);
 156         if (iter != NULL) {
 157                 service = g_sequence_get(iter);
 158                 if (service != NULL)
 159                         g_atomic_int_inc(&service->refcount);
 160                 return service;
 161         }
 162
 163         service = g_try_new0(struct connman_service, 1);
 164         if (service == NULL)
 165                 return NULL;
 166
 167         DBG("service %p", service);
 168
 169         __connman_service_initialize(service);
 170
 171         service->identifier = g_strdup(identifier);
 172
 173         iter = g_sequence_insert_sorted(service_list, service,
 174                                                 service_compare, NULL);
 175
 176         g_hash_table_insert(service_hash, service->identifier, iter);
 177
 178         return service;
 179 }
 180
 181 int __connman_service_init(void)
 182 {
 183         DBG("");
 184
 185         connection = connman_dbus_get_connection();
 186
 187         service_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 188                                                                 NULL, NULL);
 189
 190         service_list = g_sequence_new(service_free);
 191
 192         return 0;
 193 }
 194
 195 void __connman_service_cleanup(void)
 196 {
 197         DBG("");
 198
 199         g_sequence_free(service_list);
 200         service_list = NULL;
 201
 202         g_hash_table_destroy(service_hash);
 203         service_hash = NULL;
 204
 205         dbus_connection_unref(connection);
 206 }