git.maemo.org Git - modest/blob - src/modest-tny-send-queue.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30
  31 #include <modest-tny-send-queue.h>
  32 #include <tny-simple-list.h>
  33 #include <tny-iterator.h>
  34 #include <tny-folder.h>
  35 #include <tny-camel-msg.h>
  36 #include <modest-tny-account.h>
  37 #include <modest-marshal.h>
  38 #include <string.h> /* strcmp */
  39
  40 /* 'private'/'protected' functions */
  41 static void modest_tny_send_queue_class_init (ModestTnySendQueueClass *klass);
  42 static void modest_tny_send_queue_finalize   (GObject *obj);
  43 static void modest_tny_send_queue_instance_init (GTypeInstance *instance, gpointer g_class);
  44
  45 /* Signal handlers */
  46 /* static void _on_msg_start_sending (TnySendQueue *self, TnyMsg *msg, gpointer user_data); */
  47 static void _on_msg_has_been_sent (TnySendQueue *self, TnyMsg *msg, gpointer user_data);
  48 static void _on_msg_error_happened (TnySendQueue *self, TnyHeader *header, TnyMsg *msg, GError *err, gpointer user_data);
  49
  50 static TnyFolder*modest_tny_send_queue_get_outbox (TnySendQueue *self);
  51 static TnyFolder*modest_tny_send_queue_get_sentbox (TnySendQueue *self);
  52
  53 /* list my signals  */
  54 enum {
  55         STATUS_CHANGED,
  56         /* MY_SIGNAL_1, */
  57         /* MY_SIGNAL_2, */
  58         LAST_SIGNAL
  59 };
  60
  61 typedef struct _SendInfo SendInfo;
  62 struct _SendInfo {
  63         gchar* msg_id;
  64         ModestTnySendQueueStatus status;
  65 };
  66
  67 typedef struct _ModestTnySendQueuePrivate ModestTnySendQueuePrivate;
  68 struct _ModestTnySendQueuePrivate {
  69         /* Queued infos */
  70         GQueue* queue;
  71
  72         /* The info that is currently being sent */
  73         GList* current;
  74 };
  75
  76 #define MODEST_TNY_SEND_QUEUE_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  77                                                    MODEST_TYPE_TNY_SEND_QUEUE, \
  78                                                    ModestTnySendQueuePrivate))
  79
  80 /* globals */
  81 static TnyCamelSendQueueClass *parent_class = NULL;
  82
  83 /* uncomment the following if you have defined any signals */
  84 static guint signals[LAST_SIGNAL] = {0};
  85
  86 /*
  87  * this thread actually tries to send all the mails in the outbox and keeps
  88  * track of their state.
  89  */
  90
  91 static int
  92 on_modest_tny_send_queue_compare_id(gconstpointer info, gconstpointer msg_id)
  93 {
  94         return strcmp( ((SendInfo*)info)->msg_id, msg_id);
  95 }
  96
  97 static void
  98 modest_tny_send_queue_info_free(SendInfo *info)
  99 {
 100         g_free(info->msg_id);
 101         g_slice_free(SendInfo, info);
 102 }
 103
 104 static GList*
 105 modest_tny_send_queue_lookup_info (ModestTnySendQueue *self, const gchar *msg_id)
 106 {
 107         ModestTnySendQueuePrivate *priv;
 108         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 109
 110         return g_queue_find_custom (priv->queue, msg_id, on_modest_tny_send_queue_compare_id);
 111 }
 112
 113 static void
 114 modest_tny_send_queue_cancel (TnySendQueue *self, gboolean remove, GError **err)
 115 {
 116         ModestTnySendQueuePrivate *priv;
 117         SendInfo *info;
 118         TnyIterator *iter = NULL;
 119         TnyFolder *outbox = NULL;
 120         TnyList *headers = tny_simple_list_new ();
 121         TnyHeader *header = NULL;
 122
 123         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 124         if(priv->current != NULL)
 125         {
 126                 info = priv->current->data;
 127                 priv->current = NULL;
 128
 129                 /* Keep in list until retry, so that we know that this was suspended
 130                  * by the user and not by an error. */
 131                 info->status = MODEST_TNY_SEND_QUEUE_SUSPENDED;
 132
 133                 g_signal_emit (self, signals[STATUS_CHANGED], 0, info->msg_id, info->status);
 134         }
 135
 136         /* Set flags to supend sending operaiton (if removed, this is not necessary) */
 137         if (!remove) {
 138                 outbox = modest_tny_send_queue_get_outbox (TNY_SEND_QUEUE(self));
 139                 tny_folder_get_headers (outbox, headers, TRUE, err);
 140                 if (err != NULL) goto frees;
 141                 iter = tny_list_create_iterator (headers);
 142                 while (!tny_iterator_is_done (iter)) {
 143                         header = TNY_HEADER (tny_iterator_get_current (iter));
 144                         tny_header_unset_flags (header, TNY_HEADER_FLAG_PRIORITY);
 145                         tny_header_set_flags (header, TNY_HEADER_FLAG_SUSPENDED_PRIORITY);
 146                         tny_iterator_next (iter);
 147                         g_object_unref (header);
 148                 }
 149
 150                 g_queue_foreach (priv->queue, (GFunc)modest_tny_send_queue_info_free, NULL);
 151                 g_queue_free (priv->queue);
 152                 priv->queue = g_queue_new();
 153         }
 154
 155         /* Dont call super class implementaiton, becasue camel removes messages from outbox */
 156         TNY_CAMEL_SEND_QUEUE_CLASS(parent_class)->cancel_func (self, remove, err); /* FIXME */
 157
 158  frees:
 159         if (headers != NULL)
 160                 g_object_unref (G_OBJECT (headers));
 161         if (outbox != NULL)
 162                 g_object_unref (G_OBJECT (outbox));
 163         if (iter != NULL)
 164                 g_object_unref (iter);
 165 }
 166
 167 static void
 168 modest_tny_send_queue_add (TnySendQueue *self, TnyMsg *msg, GError **err)
 169 {
 170         ModestTnySendQueuePrivate *priv;
 171         TnyHeader *header;
 172         SendInfo *info = NULL;
 173         GList* existing;
 174         const gchar* msg_id;
 175
 176         g_return_if_fail (TNY_IS_SEND_QUEUE(self));
 177         g_return_if_fail (TNY_IS_CAMEL_MSG(msg));
 178
 179         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 180         header = tny_msg_get_header (msg);
 181
 182         /* FIXME: do something smart here... */
 183
 184         /* Note that this call actually sets the message id to something
 185          * sensible. */
 186         TNY_CAMEL_SEND_QUEUE_CLASS(parent_class)->add_func (self, msg, err); /* FIXME */
 187
 188         /* Check whether the mail is already in the queue */
 189 /*      msg_id = tny_header_get_message_id (header); */
 190         msg_id = tny_header_get_uid (header);
 191         existing = modest_tny_send_queue_lookup_info (MODEST_TNY_SEND_QUEUE(self), msg_id);
 192         if(existing != NULL)
 193         {
 194                 //g_assert(info->status == MODEST_TNY_SEND_QUEUE_SUSPENDED ||
 195                 //        info->status == MODEST_TNY_SEND_QUEUE_FAILED);
 196
 197                 info = existing->data;
 198                 info->status = MODEST_TNY_SEND_QUEUE_WAITING;
 199         }
 200         else
 201         {
 202
 203                 info = g_slice_new (SendInfo);
 204
 205                 info->msg_id = strdup(msg_id);
 206                 info->status = MODEST_TNY_SEND_QUEUE_WAITING;
 207                 g_queue_push_tail (priv->queue, info);
 208         }
 209
 210         g_signal_emit (self, signals[STATUS_CHANGED], 0, info->msg_id, info->status);
 211 }
 212
 213 static void
 214 _add_message (ModestTnySendQueue *self, TnyHeader *header)
 215 {
 216         ModestTnySendQueuePrivate *priv;
 217         SendInfo *info = NULL;
 218         GList* existing = NULL;
 219         gchar* msg_uid = NULL;
 220         ModestTnySendQueueStatus status = MODEST_TNY_SEND_QUEUE_WAITING;
 221
 222         g_return_if_fail (TNY_IS_SEND_QUEUE(self));
 223         g_return_if_fail (TNY_IS_HEADER(header));
 224         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 225
 226         /* Check whether the mail is already in the queue */
 227         msg_uid = modest_tny_send_queue_get_msg_id (header);
 228         status = modest_tny_send_queue_get_msg_status (self, msg_uid);
 229         switch (status) {
 230         case MODEST_TNY_SEND_QUEUE_UNKNONW:
 231         case MODEST_TNY_SEND_QUEUE_SUSPENDED:
 232         case MODEST_TNY_SEND_QUEUE_FAILED:
 233                 if (status != MODEST_TNY_SEND_QUEUE_SUSPENDED)
 234                         tny_header_unset_flags (header, TNY_HEADER_FLAG_PRIORITY);
 235                 existing = modest_tny_send_queue_lookup_info (MODEST_TNY_SEND_QUEUE(self), msg_uid);
 236                 if(existing != NULL) return;
 237
 238                 /* Add new meesage info */
 239                 info = g_slice_new (SendInfo);
 240                 info->msg_id = strdup(msg_uid);
 241                 info->status = MODEST_TNY_SEND_QUEUE_WAITING;
 242                 g_queue_push_tail (priv->queue, info);
 243                 break;
 244         default:
 245                 goto frees;
 246         }
 247
 248         /* Free */
 249  frees:
 250         g_free(msg_uid);
 251 }
 252
 253 static TnyFolder*
 254 modest_tny_send_queue_get_sentbox (TnySendQueue *self)
 255 {
 256         TnyFolder *folder;
 257         TnyCamelTransportAccount *account;
 258
 259         g_return_val_if_fail (self, NULL);
 260
 261         account = tny_camel_send_queue_get_transport_account (TNY_CAMEL_SEND_QUEUE(self));
 262         if (!account) {
 263                 g_printerr ("modest: no account for send queue\n");
 264                 return NULL;
 265         }
 266         folder  = modest_tny_account_get_special_folder (TNY_ACCOUNT(account),
 267                                                          TNY_FOLDER_TYPE_SENT);
 268         g_object_unref (G_OBJECT(account));
 269
 270         return folder;
 271 }
 272
 273
 274 static TnyFolder*
 275 modest_tny_send_queue_get_outbox (TnySendQueue *self)
 276 {
 277         TnyFolder *folder;
 278         TnyCamelTransportAccount *account;
 279
 280         g_return_val_if_fail (self, NULL);
 281
 282         account = tny_camel_send_queue_get_transport_account (TNY_CAMEL_SEND_QUEUE(self));
 283         if (!account) {
 284                 g_printerr ("modest: no account for send queue\n");
 285                 return NULL;
 286         }
 287         folder  = modest_tny_account_get_special_folder (TNY_ACCOUNT(account),
 288                                                          TNY_FOLDER_TYPE_OUTBOX);
 289
 290         /* This vfunc's tinymail contract does not allow it to return NULL. */
 291         if (!folder) {
 292                 g_warning("%s: Returning NULL.\n", __FUNCTION__);
 293         }
 294
 295         g_object_unref (G_OBJECT(account));
 296
 297         return folder;
 298 }
 299
 300 GType
 301 modest_tny_send_queue_get_type (void)
 302 {
 303         static GType my_type = 0;
 304
 305         if (my_type == 0) {
 306                 static const GTypeInfo my_info = {
 307                         sizeof(ModestTnySendQueueClass),
 308                         NULL,           /* base init */
 309                         NULL,           /* base finalize */
 310                         (GClassInitFunc) modest_tny_send_queue_class_init,
 311                         NULL,           /* class finalize */
 312                         NULL,           /* class data */
 313                         sizeof(ModestTnySendQueue),
 314                         0,              /* n_preallocs */
 315                         (GInstanceInitFunc) modest_tny_send_queue_instance_init,
 316                         NULL
 317                 };
 318                 my_type = g_type_register_static (TNY_TYPE_CAMEL_SEND_QUEUE,
 319                                                   "ModestTnySendQueue",
 320                                                   &my_info, 0);
 321         }
 322         return my_type;
 323 }
 324
 325
 326 static void
 327 modest_tny_send_queue_class_init (ModestTnySendQueueClass *klass)
 328 {
 329         GObjectClass *gobject_class;
 330
 331         gobject_class = (GObjectClass*) klass;
 332
 333         parent_class            = g_type_class_peek_parent (klass);
 334         gobject_class->finalize = modest_tny_send_queue_finalize;
 335
 336         TNY_CAMEL_SEND_QUEUE_CLASS(klass)->add_func         = modest_tny_send_queue_add;
 337         TNY_CAMEL_SEND_QUEUE_CLASS(klass)->get_outbox_func  = modest_tny_send_queue_get_outbox;
 338         TNY_CAMEL_SEND_QUEUE_CLASS(klass)->get_sentbox_func = modest_tny_send_queue_get_sentbox;
 339         TNY_CAMEL_SEND_QUEUE_CLASS(klass)->cancel_func      = modest_tny_send_queue_cancel;
 340         klass->status_changed   = NULL;
 341
 342         signals[STATUS_CHANGED] =
 343                 g_signal_new ("status_changed",
 344                               G_TYPE_FROM_CLASS (gobject_class),
 345                               G_SIGNAL_RUN_FIRST,
 346                               G_STRUCT_OFFSET (ModestTnySendQueueClass, status_changed),
 347                               NULL, NULL,
 348                               modest_marshal_VOID__STRING_INT,
 349                               G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
 350
 351         g_type_class_add_private (gobject_class, sizeof(ModestTnySendQueuePrivate));
 352 }
 353
 354 static void
 355 modest_tny_send_queue_instance_init (GTypeInstance *instance, gpointer g_class)
 356 {
 357         ModestTnySendQueuePrivate *priv;
 358
 359         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (instance);
 360         priv->queue = g_queue_new();
 361         priv->current = NULL;
 362 }
 363
 364 static void
 365 modest_tny_send_queue_finalize (GObject *obj)
 366 {
 367         ModestTnySendQueuePrivate *priv;
 368
 369         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (obj);
 370
 371         g_queue_foreach (priv->queue, (GFunc)modest_tny_send_queue_info_free, NULL);
 372         g_queue_free (priv->queue);
 373
 374         G_OBJECT_CLASS(parent_class)->finalize (obj);
 375 }
 376
 377 ModestTnySendQueue*
 378 modest_tny_send_queue_new (TnyCamelTransportAccount *account)
 379 {
 380         ModestTnySendQueue *self;
 381
 382         g_return_val_if_fail (TNY_IS_CAMEL_TRANSPORT_ACCOUNT(account), NULL);
 383
 384         self = MODEST_TNY_SEND_QUEUE(g_object_new(MODEST_TYPE_TNY_SEND_QUEUE, NULL));
 385
 386         tny_camel_send_queue_set_transport_account (TNY_CAMEL_SEND_QUEUE(self),
 387                                                     account);
 388
 389         /* Connect signals to control when a msg is being or has been sent */
 390         /* TODO: this signal was implemented in tinymail camel send queue, but im
 391            waiting for implement some unit tests nbefore commited changes */
 392 /*      if (FALSE) { */
 393 /*              g_signal_connect (G_OBJECT(self), "msg-sending", */
 394 /*                                G_CALLBACK(_on_msg_start_sending),  */
 395 /*                                NULL); */
 396 /*      } */
 397
 398         g_signal_connect (G_OBJECT(self), "msg-sent",
 399                           G_CALLBACK(_on_msg_has_been_sent),
 400                           NULL);
 401         g_signal_connect (G_OBJECT(self), "error-happened",
 402                           G_CALLBACK(_on_msg_error_happened),
 403                           NULL);
 404         return self;
 405 }
 406
 407
 408
 409 void
 410 modest_tny_send_queue_try_to_send (ModestTnySendQueue* self)
 411 {
 412         TnyIterator *iter = NULL;
 413         TnyFolder *outbox = NULL;
 414         TnyList *headers = tny_simple_list_new ();
 415         TnyHeader *header = NULL;
 416         GError *err = NULL;
 417
 418         outbox = modest_tny_send_queue_get_outbox (TNY_SEND_QUEUE(self));
 419         tny_folder_get_headers (outbox, headers, TRUE, &err);
 420         if (err != NULL) goto frees;
 421         iter = tny_list_create_iterator (headers);
 422         while (!tny_iterator_is_done (iter)) {
 423                 header = TNY_HEADER (tny_iterator_get_current (iter));
 424                 _add_message (self, header);
 425                 tny_iterator_next (iter);
 426                 g_object_unref (header);
 427         }
 428
 429         /* Flush send queue */
 430         tny_camel_send_queue_flush (TNY_CAMEL_SEND_QUEUE(self));
 431
 432  frees:
 433         if (headers != NULL)
 434                 g_object_unref (G_OBJECT (headers));
 435         if (outbox != NULL)
 436                 g_object_unref (G_OBJECT (outbox));
 437         if (iter != NULL)
 438                 g_object_unref (iter);
 439 }
 440
 441 gboolean
 442 modest_tny_send_queue_msg_is_being_sent (ModestTnySendQueue* self,
 443                                          const gchar *msg_id)
 444 {
 445         ModestTnySendQueueStatus status;
 446
 447         g_return_val_if_fail (msg_id != NULL, FALSE);
 448
 449         status = modest_tny_send_queue_get_msg_status (self, msg_id);
 450         return status == MODEST_TNY_SEND_QUEUE_SENDING;
 451 }
 452
 453 gboolean
 454 modest_tny_send_queue_sending_in_progress (ModestTnySendQueue* self)
 455 {
 456         ModestTnySendQueuePrivate *priv;
 457         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 458
 459         return priv->current != NULL;
 460 }
 461
 462 ModestTnySendQueueStatus
 463 modest_tny_send_queue_get_msg_status (ModestTnySendQueue *self, const gchar *msg_id)
 464 {
 465   GList *item;
 466   item = modest_tny_send_queue_lookup_info (self, msg_id);
 467   if(item == NULL) return MODEST_TNY_SEND_QUEUE_UNKNONW;
 468   return ((SendInfo*)item->data)->status;
 469 }
 470
 471 gchar *
 472 modest_tny_send_queue_get_msg_id (TnyHeader *header)
 473 {
 474         const gchar *uid = NULL;
 475         gchar* msg_uid = NULL;
 476         gchar **tmp = NULL;
 477
 478         /* Get message uid */
 479         uid = tny_header_get_uid (header);
 480         tmp = g_strsplit (uid, "__", 2);
 481         if (tmp[1] != NULL)
 482                 msg_uid = g_strconcat (tmp[0], "_", NULL);
 483         else
 484                 msg_uid = g_strdup(tmp[0]);
 485
 486         /* free */
 487         g_strfreev(tmp);
 488
 489         return msg_uid;
 490 }
 491
 492
 493 /* static void  */
 494 /* _on_msg_start_sending (TnySendQueue *self, */
 495 /*                     TnyMsg *msg, */
 496 /*                     gpointer user_data) */
 497 /* { */
 498 /*      ModestTnySendQueuePrivate *priv; */
 499 /*      TnyHeader *header; */
 500 /*      GList *item; */
 501 /*      SendInfo *info; */
 502
 503 /*      priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self); */
 504
 505 /*      header = tny_msg_get_header(msg); */
 506 /*      item = modest_tny_send_queue_lookup_info (MODEST_TNY_SEND_QUEUE (self), tny_header_get_message_id (header)); */
 507
 508 /*      if (item != NULL) */
 509 /*      { */
 510 /*              info = item->data; */
 511 /*              info->status = MODEST_TNY_SEND_QUEUE_SENDING; */
 512
 513 /*              g_signal_emit (self, signals[STATUS_CHANGED], 0, info->msg_id, info->status); */
 514 /*      } */
 515
 516 /*      priv->current = item; */
 517 /* } */
 518
 519 static void
 520 _on_msg_has_been_sent (TnySendQueue *self,
 521                        TnyMsg *msg,
 522                        gpointer user_data)
 523 {
 524         ModestTnySendQueuePrivate *priv;
 525         TnyHeader *header;
 526         GList *item;
 527
 528         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 529
 530         header = tny_msg_get_header (msg);
 531
 532         /* TODO: Use this version as soon as the msg-sending
 533          *  notification works */
 534 #if 0
 535         item = priv->current;
 536         g_assert(item != NULL);
 537 #else
 538         item = modest_tny_send_queue_lookup_info (MODEST_TNY_SEND_QUEUE (self), tny_header_get_message_id(header));
 539         g_assert(item != NULL);
 540 #endif
 541
 542         modest_tny_send_queue_info_free (item->data);
 543         g_queue_delete_link (priv->queue, item);
 544         priv->current = NULL;
 545 }
 546
 547 static void _on_msg_error_happened (TnySendQueue *self,
 548                                     TnyHeader *header,
 549                                     TnyMsg *msg,
 550                                     GError *err,
 551                                     gpointer user_data)
 552 {
 553         ModestTnySendQueuePrivate *priv = NULL;
 554         SendInfo *info = NULL;
 555         GList *item = NULL;
 556         gchar* msg_uid = NULL;
 557
 558         priv = MODEST_TNY_SEND_QUEUE_GET_PRIVATE (self);
 559
 560         /* Get sending info (create new if it doesn not exist) */
 561         msg_uid = modest_tny_send_queue_get_msg_id (header);
 562         item = modest_tny_send_queue_lookup_info (MODEST_TNY_SEND_QUEUE (self),
 563                                                   msg_uid);
 564         if (item == NULL) {
 565                 info = g_slice_new (SendInfo);
 566                 info->msg_id = strdup(msg_uid);
 567                 g_queue_push_tail (priv->queue, info);
 568         }
 569         else {
 570                 info = item->data;
 571         }
 572
 573         /* Keep in queue so that we remember that the opertion has failed */
 574         /* and was not just cancelled */
 575         info->status = MODEST_TNY_SEND_QUEUE_FAILED;
 576
 577         /* Notify status has changed */
 578         g_signal_emit (self, signals[STATUS_CHANGED], 0, info->msg_id, info->status);
 579
 580         /* free */
 581         g_free(msg_uid);
 582 }