src/persistence_client_library_dbus_service.c

   1 /******************************************************************************
   2  * Project         Persistency
   3  * (c) copyright   2012
   4  * Company         XS Embedded GmbH
   5  *****************************************************************************/
   6 /******************************************************************************
   7  * This Source Code Form is subject to the terms of the
   8  * Mozilla Public License, v. 2.0. If a  copy of the MPL was not distributed
   9  * with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
  10 ******************************************************************************/
  11  /**
  12  * @file           persistence_client_library_dbus_service.c
  13  * @ingroup        Persistence client library
  14  * @author         Ingo Huerner
  15  * @brief          Implementation of the persistence client library dbus service.
  16  * @see
  17  */
  18
  19
  20 #include "persistence_client_library_dbus_service.h"
  21 #include "persistence_client_library_lc_interface.h"
  22 #include "persistence_client_library_pas_interface.h"
  23 #include "../include_protected/persistence_client_library_data_organization.h"
  24
  25 #include <stdio.h>
  26 #include <errno.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <stdlib.h>
  30
  31 pthread_mutex_t gDbusInitializedMtx  = PTHREAD_MUTEX_INITIALIZER;
  32 pthread_cond_t  gDbusInitializedCond = PTHREAD_COND_INITIALIZER;
  33
  34 typedef enum EDBusObjectType
  35 {
  36    OT_NONE = 0,
  37    OT_WATCH,
  38    OT_TIMEOUT
  39 } tDBusObjectType;
  40
  41
  42 typedef struct SObjectEntry
  43 {
  44    tDBusObjectType objtype; /** libdbus' object */
  45    union
  46    {
  47       DBusWatch * watch;      /** watch "object" */
  48       DBusTimeout * timeout;  /** timeout "object" */
  49    };
  50 } tObjectEntry;
  51
  52
  53
  54 /// polling structure
  55 typedef struct SPollInfo
  56 {
  57    int nfds;
  58    struct pollfd fds[10];
  59    tObjectEntry objects[10];
  60 } tPollInfo;
  61
  62
  63 /// polling information
  64 static tPollInfo gPollInfo;
  65
  66 /// dbus connection
  67 DBusConnection* gDbusConn = NULL;
  68
  69
  70 DBusConnection* get_dbus_connection(void)
  71 {
  72    return gDbusConn;
  73 }
  74
  75 int bContinue = 0;
  76
  77 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
  78
  79
  80 /* function to unregister ojbect path message handler */
  81 static void unregisterMessageHandler(DBusConnection *connection, void *user_data)
  82 {
  83    DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("unregisterObjectPath\n"));
  84 }
  85
  86 /* catches messages not directed to any registered object path ("garbage collector") */
  87 static DBusHandlerResult handleObjectPathMessageFallback(DBusConnection * connection, DBusMessage * message, void * user_data)
  88 {
  89    DBusHandlerResult result = DBUS_HANDLER_RESULT_HANDLED;
  90
  91    // org.genivi.persistence.admin  S I G N A L
  92    if((0==strcmp("org.genivi.persistence.admin", dbus_message_get_interface(message))))
  93    {
  94       if(dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL)
  95       {
  96          if((0==strcmp("PersistenceModeChanged", dbus_message_get_member(message))))
  97          {
  98             // to do handle signal
  99             result = signal_persModeChange(connection, message);
 100          }
 101          else
 102          {
 103             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("handleObjectPathMessageFallback -> unknown signal:"), DLT_STRING(dbus_message_get_interface(message)) );
 104          }
 105       }
 106    }
 107    // org.genivi.persistence.admin  S I G N A L
 108    else if((0==strcmp("org.genivi.persistence.adminconsumer", dbus_message_get_interface(message))))
 109    {
 110       if(dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL)
 111       {
 112          pclNotification_s notifyStruct;
 113          int validMessage = 0;
 114
 115          if((0==strcmp("PersistenceResChange", dbus_message_get_member(message))))
 116          {
 117             notifyStruct.pclKeyNotify_Status = pclNotifyStatus_changed;
 118             validMessage = 1;
 119          }
 120          else if((0==strcmp("PersistenceResDelete", dbus_message_get_member(message))))
 121          {
 122             notifyStruct.pclKeyNotify_Status = pclNotifyStatus_deleted;
 123             validMessage = 1;
 124          }
 125          else if((0==strcmp("PersistenceRes", dbus_message_get_member(message))))
 126          {
 127             notifyStruct.pclKeyNotify_Status = pclNotifyStatus_created;
 128             validMessage = 1;
 129          }
 130
 131          if(validMessage == 1)
 132          {
 133             DBusError error;
 134             DBusMessage *reply;
 135             dbus_error_init (&error);
 136             char* ldbid;
 137             char* user_no;
 138             char* seat_no;
 139
 140             if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &notifyStruct.resource_id,
 141                                                          DBUS_TYPE_STRING, &ldbid,
 142                                                          DBUS_TYPE_STRING, &user_no,
 143                                                          DBUS_TYPE_STRING, &seat_no,
 144                                                          DBUS_TYPE_INVALID))
 145             {
 146                reply = dbus_message_new_error(message, error.name, error.message);
 147
 148                if (reply == 0)
 149                {
 150                   DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("handleObjectPathMessageFallback => DBus No memory"), DLT_STRING(dbus_message_get_interface(message)) );
 151                }
 152
 153                if (!dbus_connection_send(connection, reply, 0))
 154                {
 155                   DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("handleObjectPathMessageFallback => DBus No memory"), DLT_STRING(dbus_message_get_interface(message)) );
 156                }
 157
 158                result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;;
 159                dbus_message_unref(reply);
 160             }
 161             else
 162             {
 163                notifyStruct.ldbid       = atoi(ldbid);
 164                notifyStruct.user_no     = atoi(user_no);
 165                notifyStruct.seat_no     = atoi(seat_no);
 166
 167                // call the registered callback function
 168                gChangeNotifyCallback(&notifyStruct);
 169
 170                result = DBUS_HANDLER_RESULT_HANDLED;
 171             }
 172             dbus_connection_flush(connection);
 173          }
 174       }
 175    }
 176    // org.genivi.persistence.admin  P R O P E R T Y
 177    else  if((0==strcmp("org.freedesktop.DBus.Properties", dbus_message_get_interface(message))))
 178    {
 179       if(dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL)
 180       {
 181          if((0==strcmp("EggDBusChanged", dbus_message_get_member(message))))
 182          {
 183             DBusMessageIter array;
 184             DBusMessageIter dict;
 185             DBusMessageIter variant;
 186
 187             char* dictString = NULL;
 188             int value = 0;
 189
 190             dbus_message_iter_open_container(&array, DBUS_TYPE_DICT_ENTRY, 0, &dict);
 191             dbus_message_iter_get_basic(&dict, &dictString);
 192
 193             dbus_message_iter_open_container(&dict,DBUS_TYPE_VARIANT, NULL, &variant);
 194             dbus_message_iter_get_basic(&dict, &value);
 195
 196             dbus_message_iter_close_container(&dict, &variant);
 197             dbus_message_iter_close_container(&array, &dict);
 198
 199             // to do handle signal
 200             result = DBUS_HANDLER_RESULT_HANDLED;
 201          }
 202          else
 203          {
 204             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("handleObjectPathMessageFallback -> unknown property:"), DLT_STRING(dbus_message_get_interface(message)) );
 205          }
 206       }
 207       else
 208       {
 209          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("handleObjectPathMessageFallback -> not a signal:"), DLT_STRING(dbus_message_get_member(message)) );
 210       }
 211    }
 212
 213    return result;
 214 }
 215
 216
 217
 218 static void  unregisterObjectPathFallback(DBusConnection *connection, void *user_data)
 219 {
 220    DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("unregisterObjectPathFallback\n"));
 221 }
 222
 223
 224
 225 void* run_mainloop(void* dataPtr)
 226 {
 227    // persistence admin message
 228    static const struct DBusObjectPathVTable vtablePersAdmin
 229       = {unregisterMessageHandler, checkPersAdminMsg, NULL, };
 230
 231    // lifecycle message
 232    static const struct DBusObjectPathVTable vtableLifecycle
 233       = {unregisterMessageHandler, checkLifecycleMsg, NULL, };
 234
 235    // fallback
 236    static const struct DBusObjectPathVTable vtableFallback
 237       = {unregisterObjectPathFallback, handleObjectPathMessageFallback, NULL, };
 238
 239    // setup the dbus
 240    mainLoop(vtablePersAdmin, vtableLifecycle, vtableFallback, dataPtr);
 241
 242    return NULL;
 243 }
 244
 245
 246
 247 int setup_dbus_mainloop(void)
 248 {
 249    int rval = 0;
 250    pthread_t thread;
 251    DBusError err;
 252    const char *pAddress = getenv("PERS_CLIENT_DBUS_ADDRESS");
 253
 254    // enable locking of data structures in the D-Bus library for multi threading.
 255    dbus_threads_init_default();
 256
 257    dbus_error_init(&err);
 258
 259    // wain until dbus main loop has been setup and running
 260    pthread_mutex_lock(&gDbusInitializedMtx);
 261
 262    // Connect to the bus and check for errors
 263    if(pAddress != NULL)
 264    {
 265       DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("setup_dbus_mainloop -> Use specific dbus address:"), DLT_STRING(pAddress) );
 266
 267       gDbusConn = dbus_connection_open_private(pAddress, &err);
 268
 269       if(gDbusConn != NULL)
 270       {
 271          if(!dbus_bus_register(gDbusConn, &err))
 272          {
 273             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("dbus_bus_register() Error :"), DLT_STRING(err.message) );
 274             dbus_error_free (&err);
 275             return -1;
 276          }
 277       }
 278       else
 279       {
 280          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("dbus_connection_open() Error :"), DLT_STRING(err.message) );
 281          dbus_error_free(&err);
 282          return -1;
 283       }
 284    }
 285    else
 286    {
 287       DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("Use default dbus bus (DBUS_BUS_SYSTEM)"));
 288
 289       gDbusConn = dbus_bus_get(DBUS_BUS_SYSTEM, &err);
 290    }
 291
 292    // create here the dbus connection and pass to main loop
 293    rval = pthread_create(&thread, NULL, run_mainloop, gDbusConn);
 294    if(rval)
 295    {
 296      DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("pthread_create( DBUS run_mainloop ) returned an error:"), DLT_INT(rval) );
 297      return -1;
 298    }
 299
 300    // wait for condition variable
 301    pthread_cond_wait(&gDbusInitializedCond, &gDbusInitializedMtx);
 302
 303    pthread_mutex_unlock(&gDbusInitializedMtx);
 304    return rval;
 305 }
 306
 307
 308
 309
 310
 311 static dbus_bool_t addWatch(DBusWatch *watch, void *data)
 312 {
 313    dbus_bool_t result = FALSE;
 314
 315    if (ARRAY_SIZE(gPollInfo.fds)>gPollInfo.nfds)
 316    {
 317       int flags = dbus_watch_get_flags(watch);
 318
 319       tObjectEntry * const pEntry = &gPollInfo.objects[gPollInfo.nfds];
 320       pEntry->objtype = OT_WATCH;
 321       pEntry->watch = watch;
 322
 323       gPollInfo.fds[gPollInfo.nfds].fd = dbus_watch_get_unix_fd(watch);
 324
 325       if (TRUE==dbus_watch_get_enabled(watch))
 326       {
 327          if (flags&DBUS_WATCH_READABLE)
 328          {
 329             gPollInfo.fds[gPollInfo.nfds].events |= POLLIN;
 330          }
 331          if (flags&DBUS_WATCH_WRITABLE)
 332          {
 333             gPollInfo.fds[gPollInfo.nfds].events |= POLLOUT;
 334          }
 335
 336          ++gPollInfo.nfds;
 337       }
 338
 339       result = TRUE;
 340    }
 341
 342    return result;
 343 }
 344
 345
 346
 347 static void removeWatch(DBusWatch *watch, void *data)
 348 {
 349    DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("removeWatch called "), DLT_INT( (int)watch) );
 350 }
 351
 352
 353
 354 static void watchToggled(DBusWatch *watch, void *data)
 355 {
 356    DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("watchToggled called "), DLT_INT( (int)watch) );
 357 }
 358
 359
 360
 361 static dbus_bool_t addTimeout(DBusTimeout *timeout, void *data)
 362 {
 363    dbus_bool_t ret = FALSE;
 364
 365    if (ARRAY_SIZE(gPollInfo.fds)>gPollInfo.nfds)
 366    {
 367       const int interval = dbus_timeout_get_interval(timeout);
 368       if ((0<interval)&&(TRUE==dbus_timeout_get_enabled(timeout)))
 369       {
 370          const int tfd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
 371          if (-1!=tfd)
 372          {
 373             const struct itimerspec its = { .it_value= {interval/1000, interval%1000} };
 374             if (-1!=timerfd_settime(tfd, 0, &its, NULL))
 375             {
 376                tObjectEntry * const pEntry = &gPollInfo.objects[gPollInfo.nfds];
 377                pEntry->objtype = OT_TIMEOUT;
 378                pEntry->timeout = timeout;
 379                gPollInfo.fds[gPollInfo.nfds].fd = tfd;
 380                gPollInfo.fds[gPollInfo.nfds].events |= POLLIN;
 381                ++gPollInfo.nfds;
 382                ret = TRUE;
 383             }
 384             else
 385             {
 386                DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("addTimeout => timerfd_settime() failed"), DLT_STRING(strerror(errno)) );
 387             }
 388          }
 389          else
 390          {
 391             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("addTimeout => timerfd_create() failed"), DLT_STRING(strerror(errno)) );
 392          }
 393       }
 394    }
 395    else
 396    {
 397       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("addTimeout => cannot create another fd to be poll()'ed"));
 398    }
 399
 400    return ret;
 401 }
 402
 403
 404
 405 static void removeTimeout(DBusTimeout *timeout, void *data)
 406 {
 407
 408    int i = gPollInfo.nfds;
 409    while ((0<i--)&&(timeout!=gPollInfo.objects[i].timeout));
 410
 411    if (0<i)
 412    {
 413       if (-1==close(gPollInfo.fds[i].fd))
 414       {
 415          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("removeTimeout => close() timerfd"), DLT_STRING(strerror(errno)) );
 416       }
 417
 418       --gPollInfo.nfds;
 419       while (gPollInfo.nfds>i)
 420       {
 421          gPollInfo.fds[i] = gPollInfo.fds[i+1];
 422          gPollInfo.objects[i] = gPollInfo.objects[i+1];
 423          ++i;
 424       }
 425
 426       gPollInfo.fds[gPollInfo.nfds].fd = -1;
 427       gPollInfo.objects[gPollInfo.nfds].objtype = OT_NONE;
 428    }
 429 }
 430
 431
 432
 433 /** callback for libdbus' when timeout changed */
 434 static void timeoutToggled(DBusTimeout *timeout, void *data)
 435 {
 436    int i = gPollInfo.nfds;
 437    while ((0<i--)&&(timeout!=gPollInfo.objects[i].timeout));
 438    DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("timeoutToggled") );
 439    if (0<i)
 440    {
 441       const int interval = (TRUE==dbus_timeout_get_enabled(timeout))?dbus_timeout_get_interval(timeout):0;
 442       const struct itimerspec its = { .it_value= {interval/1000, interval%1000} };
 443       if (-1!=timerfd_settime(gPollInfo.fds[i].fd, 0, &its, NULL))
 444       {
 445          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("timeoutToggled => timerfd_settime()"), DLT_STRING(strerror(errno)) );
 446       }
 447    }
 448 }
 449
 450
 451
 452 int mainLoop(DBusObjectPathVTable vtable, DBusObjectPathVTable vtable2,
 453              DBusObjectPathVTable vtableFallback, void* userData)
 454 {
 455    DBusError err;
 456    // lock mutex to make sure dbus main loop is running
 457    pthread_mutex_lock(&gDbusInitializedMtx);
 458
 459
 460    DBusConnection* conn = (DBusConnection*)userData;
 461    dbus_error_init(&err);
 462
 463    if (dbus_error_is_set(&err))
 464    {
 465       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => Connection Error:"), DLT_STRING(err.message) );
 466       dbus_error_free(&err);
 467    }
 468    else if (NULL != conn)
 469    {
 470       dbus_connection_set_exit_on_disconnect (conn, FALSE);
 471       if (-1 == (gEfds = eventfd(0, 0)))
 472       {
 473          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => eventfd() failed w/ errno:"), DLT_INT(errno) );
 474       }
 475       else
 476       {
 477          int ret;
 478          memset(&gPollInfo, 0 , sizeof(gPollInfo));
 479
 480          gPollInfo.nfds = 1;
 481          gPollInfo.fds[0].fd = gEfds;
 482          gPollInfo.fds[0].events = POLLIN;
 483
 484          dbus_bus_add_match(conn, "type='signal',interface='org.genivi.persistence.admin',member='PersistenceModeChanged',path='/org/genivi/persistence/admin'", &err);
 485
 486          // register for messages
 487          if (   (TRUE==dbus_connection_register_object_path(conn, "/org/genivi/persistence/adminconsumer", &vtable, userData))
 488              && (TRUE==dbus_connection_register_object_path(conn, "/org/genivi/NodeStateManager/LifeCycleConsumer", &vtable2, userData))
 489              && (TRUE==dbus_connection_register_fallback(conn, "/", &vtableFallback, userData)) )
 490          {
 491             if(   (TRUE!=dbus_connection_set_watch_functions(conn, addWatch, removeWatch, watchToggled, NULL, NULL))
 492                || (TRUE!=dbus_connection_set_timeout_functions(conn, addTimeout, removeTimeout, timeoutToggled, NULL, NULL)) )
 493             {
 494                DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => dbus_connection_set_watch_functions() failed"));
 495             }
 496             else
 497             {
 498                pthread_cond_signal(&gDbusInitializedCond);
 499                pthread_mutex_unlock(&gDbusInitializedMtx);
 500                do
 501                {
 502                   bContinue = 0; /* assume error */
 503
 504                   while (DBUS_DISPATCH_DATA_REMAINS==dbus_connection_dispatch(conn));
 505
 506                   while ((-1==(ret=poll(gPollInfo.fds, gPollInfo.nfds, -1)))&&(EINTR==errno));
 507
 508                   if (0>ret)
 509                   {
 510                      DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => poll() failed w/ errno "), DLT_INT(errno) );
 511                   }
 512                   else if (0==ret)
 513                   {
 514                      /* poll time-out */
 515                   }
 516                   else
 517                   {
 518                      int i;
 519
 520                      for (i=0; gPollInfo.nfds>i; ++i)
 521                      {
 522                         /* anything to do */
 523                         if (0!=gPollInfo.fds[i].revents)
 524                         {
 525                            if (OT_TIMEOUT==gPollInfo.objects[i].objtype)
 526                            {
 527                               /* time-out occured */
 528                               unsigned long long nExpCount = 0;
 529                               if ((ssize_t)sizeof(nExpCount)!=read(gPollInfo.fds[i].fd, &nExpCount, sizeof(nExpCount)))
 530                               {
 531                                  DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => read failed"));
 532                               }
 533                               DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => timeout"));
 534
 535                               if (FALSE==dbus_timeout_handle(gPollInfo.objects[i].timeout))
 536                               {
 537                                  DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => dbus_timeout_handle() failed!?"));
 538                               }
 539                               bContinue = TRUE;
 540                            }
 541                            else if (gPollInfo.fds[i].fd==gEfds)
 542                            {
 543                               /* internal command */
 544                               if (0!=(gPollInfo.fds[i].revents & POLLIN))
 545                               {
 546                                  uint16_t buf[64];
 547                                  bContinue = TRUE;
 548                                  while ((-1==(ret=read(gPollInfo.fds[i].fd, buf, 64)))&&(EINTR==errno));
 549                                  if (0>ret)
 550                                  {
 551                                     DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => read() failed"), DLT_STRING(strerror(errno)) );
 552                                  }
 553                                  else if (ret != -1)
 554                                  {
 555                                     switch (buf[0])
 556                                     {
 557                                        case CMD_PAS_BLOCK_AND_WRITE_BACK:
 558                                           process_block_and_write_data_back((buf[2]), buf[1]);
 559                                           break;
 560                                        case CMD_LC_PREPARE_SHUTDOWN:
 561                                           process_prepare_shutdown((buf[2]), buf[1]);
 562                                           break;
 563                                        case CMD_QUIT:
 564                                           bContinue = FALSE;
 565                                           break;
 566                                        default:
 567                                           DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("mainLoop => command not handled"), DLT_INT(buf[0]) );
 568                                           break;
 569                                     }
 570                                  }
 571                               }
 572                            }
 573                            else
 574                            {
 575                               int flags = 0;
 576                               if (0!=(gPollInfo.fds[i].revents & POLLIN))
 577                               {
 578                                  flags |= DBUS_WATCH_READABLE;
 579                               }
 580                               if (0!=(gPollInfo.fds[i].revents & POLLOUT))
 581                               {
 582                                  flags |= DBUS_WATCH_WRITABLE;
 583                               }
 584                               if (0!=(gPollInfo.fds[i].revents & POLLERR))
 585                               {
 586                                  flags |= DBUS_WATCH_ERROR;
 587                               }
 588                               if (0!=(gPollInfo.fds[i].revents & POLLHUP))
 589                               {
 590                                  flags |= DBUS_WATCH_HANGUP;
 591                               }
 592
 593                               bContinue = dbus_watch_handle(gPollInfo.objects[i].watch, flags);
 594                            }
 595                         }
 596                      }
 597                   }
 598                }
 599                while (0!=bContinue);
 600             }
 601             dbus_connection_unregister_object_path(conn, "/org/genivi/persistence/adminconsumer");
 602             dbus_connection_unregister_object_path(conn, "/org/genivi/NodeStateManager/LifeCycleConsumer");
 603             dbus_connection_unregister_object_path(conn, "/");
 604          }
 605          close(gEfds);
 606       }
 607       //dbus_connection_close(conn);
 608       dbus_connection_unref(conn);
 609       dbus_shutdown();
 610    }
 611
 612    pthread_cond_signal(&gDbusInitializedCond);
 613    pthread_mutex_unlock(&gDbusInitializedMtx);
 614    return 0;
 615 }
 616