common/mm_sound_dbus.c

   1
   2 #include <gio/gio.h>
   3 #include <stdlib.h>
   4
   5 #include <mm_error.h>
   6 #include <mm_debug.h>
   7
   8 #include "../include/mm_sound_dbus.h"
   9 #include "../include/mm_sound_intf.h"
  10
  11 struct callback_data {
  12         mm_sound_dbus_callback user_cb;
  13         void *user_data;
  14         mm_sound_dbus_userdata_free free_func;
  15 };
  16
  17 struct dbus_path {
  18         char *bus_name;
  19         char *object;
  20         char *interface;
  21 };
  22
  23 const struct dbus_path g_paths[AUDIO_PROVIDER_MAX] = {
  24         [AUDIO_PROVIDER_SOUND_SERVER] = {
  25                 .bus_name = "org.tizen.SoundServer",
  26                 .object = "/org/tizen/SoundServer1",
  27                 .interface = "org.tizen.SoundServer1"
  28         },
  29         [AUDIO_PROVIDER_FOCUS_SERVER] = {
  30                 .bus_name = "org.tizen.FocusServer",
  31                 .object = "/org/tizen/FocusServer1",
  32                 .interface = "org.tizen.FocusServer1"
  33         },
  34         [AUDIO_PROVIDER_DEVICE_MANAGER] = {
  35                 .bus_name = "org.pulseaudio.Server",
  36                 .object = "/org/pulseaudio/DeviceManager",
  37                 .interface = "org.pulseaudio.DeviceManager"
  38         },
  39         [AUDIO_PROVIDER_STREAM_MANAGER] = {
  40                 .bus_name = "org.pulseaudio.Server",
  41                 .object = "/org/pulseaudio/StreamManager",
  42                 .interface = "org.pulseaudio.StreamManager"
  43         },
  44         [AUDIO_PROVIDER_AUDIO_CLIENT] = {
  45                 .bus_name = "org.tizen.AudioClient",
  46                 .object = "/org/tizen/AudioClient1",
  47                 .interface = "org.tizen.AudioClient1"
  48         }
  49 };
  50
  51 const mm_sound_dbus_method_info_t g_methods[AUDIO_METHOD_MAX] = {
  52         [AUDIO_METHOD_TEST] = {
  53                 .name = "MethodTest1",
  54         },
  55         [AUDIO_METHOD_PLAY_FILE_START_WITH_STREAM_INFO] = {
  56                 .name = "PlayFileStartWithStreamInfo",
  57         },
  58         [AUDIO_METHOD_PLAY_FILE_STOP] = {
  59                 .name = "PlayFileStop",
  60         },
  61         [AUDIO_METHOD_PLAY_DTMF_WITH_STREAM_INFO] = {
  62                 .name = "PlayDTMFWithStreamInfo",
  63         },
  64         [AUDIO_METHOD_SET_VOLUME_LEVEL] = {
  65                 .name = "SetVolumeLevel",
  66         },
  67         [AUDIO_METHOD_GET_CONNECTED_DEVICE_LIST] = {
  68                 .name = "GetConnectedDeviceList",
  69         },
  70         [AUDIO_METHOD_GET_DEVICE_BY_ID] = {
  71                 .name = "GetDeviceById",
  72         },
  73         [AUDIO_METHOD_IS_STREAM_ON_DEVICE] = {
  74                 .name = "IsStreamOnDevice",
  75         },
  76         [AUDIO_METHOD_GET_UNIQUE_ID] = {
  77                 .name = "GetUniqueId",
  78         },
  79         [AUDIO_METHOD_REGISTER_FOCUS] = {
  80                 .name = "RegisterFocus",
  81         },
  82         [AUDIO_METHOD_UNREGISTER_FOCUS] = {
  83                 .name = "UnregisterFocus",
  84         },
  85         [AUDIO_METHOD_SET_FOCUS_REACQUISITION] = {
  86                 .name = "SetFocusReacquisition",
  87         },
  88         [AUDIO_METHOD_GET_ACQUIRED_FOCUS_STREAM_TYPE] = {
  89                 .name = "GetAcquiredFocusStreamType",
  90         },
  91         [AUDIO_METHOD_ACQUIRE_FOCUS] = {
  92                 .name = "AcquireFocus",
  93         },
  94         [AUDIO_METHOD_RELEASE_FOCUS] = {
  95                 .name = "ReleaseFocus",
  96         },
  97         [AUDIO_METHOD_UPDATE_STREAM_FOCUS_STATUS] = {
  98                 .name = "UpdateFocusStatusByFocusId",
  99         },
 100         [AUDIO_METHOD_WATCH_FOCUS] = {
 101                 .name = "WatchFocus",
 102         },
 103         [AUDIO_METHOD_UNWATCH_FOCUS] = {
 104                 .name = "UnwatchFocus",
 105         },
 106         [AUDIO_METHOD_DELIVER_FOCUS] = {
 107                 .name = "DeliverFocus",
 108         },
 109         [AUDIO_METHOD_SET_FILTER] = {
 110                 .name = "SetFilter",
 111         },
 112         [AUDIO_METHOD_UNSET_FILTER] = {
 113                 .name = "UnsetFilter",
 114         },
 115         [AUDIO_METHOD_CONTROL_FILTER] = {
 116                 .name = "ControlFilter",
 117         },
 118 };
 119
 120 const mm_sound_dbus_signal_info_t g_events[AUDIO_EVENT_MAX] = {
 121         [AUDIO_EVENT_TEST] = {
 122                 .name = "SignalTest1",
 123         },
 124         [AUDIO_EVENT_PLAY_FILE_END] = {
 125                 .name = "PlayFileEnd",
 126         },
 127         [AUDIO_EVENT_VOLUME_CHANGED] = {
 128                 .name = "VolumeChanged",
 129         },
 130         [AUDIO_EVENT_DEVICE_CONNECTED] = {
 131                 .name = "DeviceConnected",
 132         },
 133         [AUDIO_EVENT_DEVICE_INFO_CHANGED] = {
 134                 .name = "DeviceInfoChanged",
 135         },
 136         [AUDIO_EVENT_DEVICE_STATE_CHANGED] = {
 137                 .name = "DeviceStateChanged",
 138         },
 139         [AUDIO_EVENT_DEVICE_RUNNING_CHANGED] = {
 140                 .name = "DeviceRunningChanged",
 141         },
 142         [AUDIO_EVENT_FOCUS_CHANGED] = {
 143                 .name = "FocusChanged",
 144         },
 145         [AUDIO_EVENT_FOCUS_WATCH] = {
 146                 .name = "FocusWatch",
 147         },
 148         [AUDIO_EVENT_EMERGENT_EXIT] = {
 149                 .name = "EmergentExit",
 150         },
 151         [AUDIO_EVENT_CLIENT_SUBSCRIBED] = {
 152                 .name = "ClientSubscribed",
 153         },
 154         [AUDIO_EVENT_CLIENT_HANDLED] = {
 155                 .name = "ClientSignalHandled",
 156         }
 157 };
 158
 159 /* Only For error types which is currently being used in server-side */
 160 static const GDBusErrorEntry mm_sound_error_entries[] = {
 161         {MM_ERROR_OUT_OF_MEMORY, "org.tizen.multimedia.OutOfMemory"},
 162         {MM_ERROR_OUT_OF_STORAGE, "org.tizen.multimedia.OutOfStorage"},
 163         {MM_ERROR_INVALID_ARGUMENT, "org.tizen.multimedia.InvalidArgument"},
 164         {MM_ERROR_POLICY_INTERNAL, "org.tizen.multimedia.PolicyInternal"},
 165         {MM_ERROR_NOT_SUPPORT_API, "org.tizen.multimedia.NotSupportAPI"},
 166         {MM_ERROR_POLICY_BLOCKED, "org.tizen.multimedia.PolicyBlocked"},
 167         {MM_ERROR_END_OF_FILE, "org.tizen.multimedia.EndOfFile"},
 168         {MM_ERROR_COMMON_OUT_OF_RANGE, "org.tizen.multimedia.common.OutOfRange"},
 169         {MM_ERROR_COMMON_UNKNOWN, "org.tizen.multimedia.common.Unknown"},
 170         {MM_ERROR_COMMON_NO_FREE_SPACE, "org.tizen.multimedia.common.NoFreeSpace"},
 171         {MM_ERROR_SOUND_INTERNAL, "org.tizen.multimedia.audio.Internal"},
 172         {MM_ERROR_SOUND_INVALID_STATE, "org.tizen.multimedia.audio.InvalidState"},
 173         {MM_ERROR_SOUND_NO_FREE_SPACE, "org.tizen.multimedia.audio.NoFreeSpace"},
 174         {MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE, "org.tizen.multimedia.audio.UnsupportedMediaType"},
 175         {MM_ERROR_SOUND_INVALID_POINTER, "org.tizen.multimedia.audio.InvalidPointer"},
 176         {MM_ERROR_SOUND_INVALID_FILE, "org.tizen.multimedia.audio.InvalidFile"},
 177         {MM_ERROR_SOUND_FILE_NOT_FOUND, "org.tizen.multimedia.audio.FileNotFound"},
 178         {MM_ERROR_SOUND_NO_DATA, "org.tizen.multimedia.audio.NoData"},
 179         {MM_ERROR_SOUND_INVALID_PATH, "org.tizen.multimedia.audio.InvalidPath"},
 180         {MM_ERROR_SOUND_PERMISSION_DENIED, "org.freedesktop.DBus.Error.AccessDenied"},
 181 };
 182
 183
 184 /******************************************************************************************
 185                 Wrapper Functions of GDbus
 186 ******************************************************************************************/
 187
 188 static int _parse_error_msg(char *full_err_msg, char **err_name, char **err_msg)
 189 {
 190         char *save_p = NULL, *domain, *_err_name, *_err_msg;
 191
 192         if (!(domain = strtok_r(full_err_msg, ":", &save_p))) {
 193                 debug_error("get domain failed");
 194                 return -1;
 195         }
 196         if (!(_err_name = strtok_r(NULL, ":", &save_p))) {
 197                 debug_error("get err name failed");
 198                 return -1;
 199         }
 200         if (!(_err_msg = strtok_r(NULL, ":", &save_p))) {
 201                 debug_error("get err msg failed");
 202                 return -1;
 203         }
 204
 205         *err_name = _err_name;
 206         *err_msg = _err_msg;
 207
 208         return 0;
 209 }
 210
 211 static int _convert_error_name(const char *err_name)
 212 {
 213         int i = 0;
 214
 215         debug_error("error name is [%s]", err_name);
 216
 217         for (i = 0; i < G_N_ELEMENTS(mm_sound_error_entries); i++) {
 218                 if (!strcmp(mm_sound_error_entries[i].dbus_error_name, err_name))
 219                         return mm_sound_error_entries[i].error_code;
 220         }
 221
 222         return MM_ERROR_COMMON_UNKNOWN;
 223 }
 224
 225 static int _dbus_method_call(GDBusConnection *conn, const char *bus_name, const char *object, const char *intf,
 226                                                         const char *method, GVariant *args, GVariant **result)
 227 {
 228         int ret = MM_ERROR_NONE;
 229         GError *err = NULL;
 230         GVariant *dbus_reply = NULL;
 231
 232         if (!conn || !object || !intf || !method) {
 233                 debug_error("Invalid Argument");
 234                 if (!conn)
 235                         debug_error("conn null");
 236                 if (!object)
 237                         debug_error("object null");
 238                 if (!intf)
 239                         debug_error("intf null");
 240                 if (!method)
 241                         debug_error("method null");
 242                 return MM_ERROR_INVALID_ARGUMENT;
 243         }
 244
 245         debug_log("Dbus call with obj'%s' intf'%s' method'%s'", object, intf, method);
 246
 247         dbus_reply = g_dbus_connection_call_sync(conn, bus_name, object , intf,
 248                                                                                         method, args ,
 249                                                                                         NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, &err);
 250
 251         if (!dbus_reply || err) {
 252                 char *err_name = NULL, *err_msg = NULL;
 253                 debug_error("Method Call '%s.%s' Failed, %s", intf, method, err ? err->message : NULL);
 254                 ret = MM_ERROR_SOUND_INTERNAL;
 255                 if (err) {
 256                         if (_parse_error_msg(err->message, &err_name, &err_msg) < 0) {
 257                                 debug_error("failed to parse error message");
 258                                 g_error_free(err);
 259                                 return MM_ERROR_SOUND_INTERNAL;
 260                         }
 261                         ret = _convert_error_name(err_name);
 262                 }
 263                 g_error_free(err);
 264         } else {
 265                 debug_log("Method Call '%s.%s' Success", intf, method);
 266         }
 267
 268         *result = dbus_reply;
 269
 270         return ret;
 271 }
 272
 273 static int _dbus_subscribe_signal(GDBusConnection *conn, const char *object_name, const char *intf_name,
 274                                                                 const char *signal_name, GDBusSignalCallback signal_cb, guint *subscribe_id,
 275                                                                 void *userdata, GDestroyNotify freefunc)
 276 {
 277         guint subs_id = 0;
 278
 279         if (!conn || !object_name || !intf_name || !signal_name || !signal_cb) {
 280                 debug_error("Invalid Argument");
 281                 return MM_ERROR_INVALID_ARGUMENT;
 282         }
 283
 284         debug_log("Dbus subscirbe signal with Obj'%s' Intf'%s' sig'%s'", object_name, intf_name, signal_name);
 285
 286         subs_id = g_dbus_connection_signal_subscribe(conn, NULL, intf_name, signal_name, object_name,
 287                                                                                                 NULL, G_DBUS_SIGNAL_FLAGS_NONE , signal_cb, userdata, freefunc);
 288
 289         if (!subs_id) {
 290                 debug_error("g_dbus_connection_signal_subscribe() failed ");
 291                 return MM_ERROR_SOUND_INTERNAL;
 292         }
 293         if (subscribe_id)
 294                 *subscribe_id = subs_id;
 295
 296         return MM_ERROR_NONE;
 297 }
 298
 299 static void _dbus_unsubscribe_signal(GDBusConnection *conn, guint subs_id)
 300 {
 301         if (!conn || !subs_id) {
 302                 debug_error("Invalid Argument");
 303                 return;
 304         }
 305
 306         g_dbus_connection_signal_unsubscribe(conn, subs_id);
 307 }
 308
 309 static GDBusConnection * _dbus_get_connection(GBusType bustype)
 310 {
 311         static GDBusConnection *conn_system = NULL;
 312         static GDBusConnection *conn_session = NULL;
 313         GError *err = NULL;
 314
 315         if (bustype == G_BUS_TYPE_SYSTEM) {
 316                 if (conn_system) {
 317 #ifndef TIZEN_TV
 318                         debug_log("Already connected to system bus");
 319 #endif
 320                 } else {
 321 #ifndef TIZEN_TV
 322                         debug_log("Get new connection on system bus");
 323 #endif
 324                         conn_system = g_bus_get_sync(bustype, NULL, &err);
 325                         if (!conn_system || err) {
 326 #ifndef TIZEN_TV
 327                                 debug_error("g_dbus_get_sync() error (%s)", err ? err->message : NULL);
 328 #endif
 329                                 g_error_free(err);
 330                                 return NULL;
 331                         }
 332                 }
 333                 return conn_system;
 334         } else if (bustype == G_BUS_TYPE_SESSION) {
 335                 if (conn_session) {
 336 #ifndef TIZEN_TV
 337                         debug_log("Already connected to session bus");
 338 #endif
 339                 } else {
 340 #ifndef TIZEN_TV
 341                         debug_log("Get new connection on session bus");
 342 #endif
 343                         conn_session = g_bus_get_sync(bustype, NULL, &err);
 344                         if (!conn_session || err) {
 345 #ifndef TIZEN_TV
 346                                 debug_error("g_dbus_get_sync() error (%s)", err ? err->message : NULL);
 347 #endif
 348                                 g_error_free(err);
 349                                 return NULL;
 350                         }
 351                 }
 352                 return conn_session;
 353         } else {
 354 #ifndef TIZEN_TV
 355                 debug_error("Invalid bus type");
 356 #endif
 357                 return NULL;
 358         }
 359
 360 }
 361
 362 /******************************************************************************************
 363                 Simple Functions For Communicate with Sound-Server
 364 ******************************************************************************************/
 365
 366 EXPORT_API
 367 int mm_sound_dbus_method_call_to(audio_provider_t provider, audio_method_t method_type, GVariant *args, GVariant **result)
 368 {
 369         int ret = MM_ERROR_NONE;
 370         GDBusConnection *conn = NULL;
 371
 372         if (method_type >= AUDIO_METHOD_MAX) {
 373                 debug_error("Invalid method type : %d", method_type);
 374                 return MM_ERROR_INVALID_ARGUMENT;
 375         }
 376         if (provider >= AUDIO_PROVIDER_MAX) {
 377                 debug_error("Invalid provider : %d", provider);
 378                 return MM_ERROR_INVALID_ARGUMENT;
 379         }
 380
 381         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 382                 debug_error("Get Dbus Connection Error");
 383                 return MM_ERROR_SOUND_INTERNAL;
 384         }
 385
 386         if ((ret = _dbus_method_call(conn, g_paths[provider].bus_name,
 387                                                                 g_paths[provider].object,
 388                                                                 g_paths[provider].interface,
 389                                                                 g_methods[method_type].name,
 390                                                                 args, result)) != MM_ERROR_NONE) {
 391                 debug_error("Dbus Call on Client Error");
 392         }
 393
 394         return ret;
 395 }
 396
 397 /* This callback only transform signal-callback to dbus non-related form (mm_sound_dbus_callback) */
 398 static void _dbus_signal_callback(GDBusConnection *connection,
 399                                                                 const gchar *sender_name,
 400                                                                 const gchar *object_path,
 401                                                                 const gchar *interface_name,
 402                                                                 const gchar *signal_name,
 403                                                                 GVariant *params,
 404                                                                 gpointer userdata)
 405 {
 406         struct callback_data *cb_data = (struct callback_data *)userdata;
 407
 408         debug_log("Signal(%s.%s) Received, Let's call Wrapper-Callback", interface_name, signal_name);
 409
 410         if (!strcmp(signal_name, g_events[AUDIO_EVENT_VOLUME_CHANGED].name))
 411                 (cb_data->user_cb)(AUDIO_EVENT_VOLUME_CHANGED, params, cb_data->user_data);
 412         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_CONNECTED].name))
 413                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_CONNECTED, params, cb_data->user_data);
 414         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_INFO_CHANGED].name))
 415                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_INFO_CHANGED, params, cb_data->user_data);
 416         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_STATE_CHANGED].name))
 417                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_STATE_CHANGED, params, cb_data->user_data);
 418         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_FOCUS_CHANGED].name))
 419                 (cb_data->user_cb)(AUDIO_EVENT_FOCUS_CHANGED, params, cb_data->user_data);
 420         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_FOCUS_WATCH].name))
 421                 (cb_data->user_cb)(AUDIO_EVENT_FOCUS_WATCH, params, cb_data->user_data);
 422         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_PLAY_FILE_END].name))
 423                 (cb_data->user_cb)(AUDIO_EVENT_PLAY_FILE_END, params, cb_data->user_data);
 424         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_EMERGENT_EXIT].name))
 425                 (cb_data->user_cb)(AUDIO_EVENT_EMERGENT_EXIT, params, cb_data->user_data);
 426         else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_RUNNING_CHANGED].name))
 427                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_RUNNING_CHANGED, params, cb_data->user_data);
 428 }
 429
 430 static void callback_data_free_func(gpointer data)
 431 {
 432         struct callback_data *cb_data = (struct callback_data *)data;
 433
 434         if (cb_data->free_func)
 435                 cb_data->free_func(cb_data->user_data);
 436         g_free(cb_data);
 437 }
 438
 439 EXPORT_API
 440 int mm_sound_dbus_signal_subscribe_to(audio_provider_t provider, audio_event_t event, mm_sound_dbus_callback callback,
 441                                                                         void *userdata, mm_sound_dbus_userdata_free freefunc, unsigned *subs_id)
 442 {
 443         GDBusConnection *conn = NULL;
 444         guint _subs_id = 0;
 445         struct callback_data *cb_data = NULL;
 446
 447         if (!callback) {
 448                 debug_error("Callback is Null");
 449                 return MM_ERROR_INVALID_ARGUMENT;
 450         }
 451
 452         if (event >= AUDIO_EVENT_MAX) {
 453                 debug_error("Wrong event Type : %d", event);
 454                 return MM_ERROR_INVALID_ARGUMENT;
 455         }
 456
 457         if (provider >= AUDIO_PROVIDER_MAX) {
 458                 debug_error("Invalid provider : %d", provider);
 459                 return MM_ERROR_INVALID_ARGUMENT;
 460         }
 461
 462         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 463                 debug_error("Get Dbus Connection Error");
 464                 return MM_ERROR_SOUND_INTERNAL;
 465         }
 466
 467         if (!(cb_data = (struct callback_data*)g_malloc0(sizeof(struct callback_data)))) {
 468                 debug_error("Allocate for callback data failed");
 469                 return MM_ERROR_SOUND_INTERNAL;
 470         }
 471
 472         cb_data->user_cb = callback;
 473         cb_data->user_data = userdata;
 474         cb_data->free_func = freefunc;
 475
 476         if (_dbus_subscribe_signal(conn, g_paths[provider].object, g_paths[provider].interface, g_events[event].name,
 477                                                         _dbus_signal_callback, &_subs_id, cb_data, callback_data_free_func) != MM_ERROR_NONE) {
 478                 debug_error("Dbus Subscribe on Client Error");
 479                 goto fail;
 480         }
 481         if (subs_id)
 482                 *subs_id = (unsigned int)_subs_id;
 483
 484         return MM_ERROR_NONE;
 485
 486 fail:
 487         free(cb_data);
 488         return MM_ERROR_SOUND_INTERNAL;
 489 }
 490
 491 EXPORT_API
 492 int mm_sound_dbus_signal_unsubscribe(unsigned int subs_id)
 493 {
 494         GDBusConnection *conn = NULL;
 495
 496         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 497                 debug_error("Get Dbus Connection Error");
 498                 return MM_ERROR_SOUND_INTERNAL;
 499         }
 500
 501         _dbus_unsubscribe_signal(conn, (guint)subs_id);
 502
 503         return MM_ERROR_NONE;
 504 }
 505
 506 EXPORT_API
 507 int mm_sound_dbus_emit_signal(audio_provider_t provider, audio_event_t event, GVariant *param)
 508 {
 509         GDBusConnection *conn;
 510         GError *err = NULL;
 511         gboolean dbus_ret;
 512
 513         if (event >= AUDIO_EVENT_MAX) {
 514 #ifndef TIZEN_TV
 515                 debug_error("emit signal failed, invalid argument, event_type(%d)", event);
 516 #endif
 517                 return MM_ERROR_INVALID_ARGUMENT;
 518         }
 519
 520         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 521 #ifndef TIZEN_TV
 522                 debug_error("Get Dbus Connection Error");
 523 #endif
 524                 return MM_ERROR_SOUND_INTERNAL;
 525         }
 526
 527         dbus_ret = g_dbus_connection_emit_signal(conn,
 528                                                   NULL, g_paths[provider].object,
 529                                                   g_paths[provider].interface, g_events[event].name,
 530                                                   param, &err);
 531         if (!dbus_ret || err) {
 532 #ifndef TIZEN_TV
 533                 debug_error("g_dbus_connection_emit_signal() error (%s)", err ? err->message : NULL);
 534 #endif
 535                 g_error_free(err);
 536                 return MM_ERROR_SOUND_INTERNAL;
 537         }
 538         g_dbus_connection_flush_sync(conn, NULL, NULL);
 539
 540 #ifndef TIZEN_TV
 541         debug_msg("emit signal for [%s] success", g_events[event].name);
 542 #endif
 543         return MM_ERROR_NONE;
 544 }
 545
 546 EXPORT_API
 547 int mm_sound_dbus_get_event_name(audio_event_t event, const char **event_name)
 548 {
 549         if (!event_name) {
 550                 debug_error("Invalid Parameter, event_name NULL");
 551                 return MM_ERROR_INVALID_ARGUMENT;
 552         }
 553         if (event >= AUDIO_EVENT_MAX) {
 554                 debug_error("invalid event : %d", event);
 555                 return MM_ERROR_INVALID_ARGUMENT;
 556         }
 557
 558         *event_name = g_events[event].name;
 559         return MM_ERROR_NONE;
 560 }
 561
 562 EXPORT_API
 563 int mm_sound_dbus_get_method_name(audio_method_t method, const char **method_name)
 564 {
 565         if (!method_name) {
 566                 debug_error("Invalid Parameter, method_name NULL");
 567                 return MM_ERROR_INVALID_ARGUMENT;
 568         }
 569         if (method >= AUDIO_METHOD_MAX) {
 570                 debug_error("invalid method : %d", method);
 571                 return MM_ERROR_INVALID_ARGUMENT;
 572         }
 573
 574         *method_name = g_methods[method].name;
 575         return MM_ERROR_NONE;
 576 }