gio/gfilemonitor.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include "config.h"
  24 #include <string.h>
  25
  26 #include "gfilemonitor.h"
  27 #include "gio-marshal.h"
  28 #include "gioenumtypes.h"
  29 #include "gfile.h"
  30 #include "gvfs.h"
  31 #include "glibintl.h"
  32
  33 #include "gioalias.h"
  34
  35 struct _FileChange;
  36 typedef struct _FileChange FileChange;
  37 static void file_change_free (FileChange *change);
  38
  39 /**
  40  * SECTION:gfilemonitor
  41  * @short_description: File Monitor
  42  * @include: gio/gio.h
  43  *
  44  * Monitors a file or directory for changes.
  45  *
  46  * To obtain a #GFileMonitor for a file or directory, use
  47  * g_file_monitor(), g_file_monitor_file(), or
  48  * g_file_monitor_directory().
  49  *
  50  * To get informed about changes to the file or directory you are
  51  * monitoring, connect to the #GFileMonitor::changed signal. The
  52  * signal will be emitted in the <link
  53  * linkend="g-main-context-push-thread-default">thread-default main
  54  * context</link> of the thread that the monitor was created in
  55  * (though if the global default main context is blocked, this may
  56  * cause notifications to be blocked even if the thread-default
  57  * context is still running).
  58  **/
  59
  60 G_LOCK_DEFINE_STATIC(cancelled);
  61
  62 enum {
  63   CHANGED,
  64   LAST_SIGNAL
  65 };
  66
  67 /* work around a limitation of the aliasing foo */
  68 #undef g_file_monitor
  69
  70 G_DEFINE_ABSTRACT_TYPE (GFileMonitor, g_file_monitor, G_TYPE_OBJECT);
  71
  72 typedef struct {
  73   GFile *file;
  74   guint32 last_sent_change_time; /* 0 == not sent */
  75   guint32 send_delayed_change_at; /* 0 == never */
  76   guint32 send_virtual_changes_done_at; /* 0 == never */
  77 } RateLimiter;
  78
  79 struct _GFileMonitorPrivate {
  80   gboolean cancelled;
  81   int rate_limit_msec;
  82
  83   /* Rate limiting change events */
  84   GHashTable *rate_limiter;
  85
  86   GSource *pending_file_change_source;
  87   GSList *pending_file_changes; /* FileChange */
  88
  89   GSource *timeout;
  90   guint32 timeout_fires_at;
  91
  92   GMainContext *context;
  93 };
  94
  95 enum {
  96   PROP_0,
  97   PROP_RATE_LIMIT,
  98   PROP_CANCELLED
  99 };
 100
 101 static void
 102 g_file_monitor_set_property (GObject      *object,
 103                              guint         prop_id,
 104                              const GValue *value,
 105                              GParamSpec   *pspec)
 106 {
 107   GFileMonitor *monitor;
 108
 109   monitor = G_FILE_MONITOR (object);
 110
 111   switch (prop_id)
 112     {
 113     case PROP_RATE_LIMIT:
 114       g_file_monitor_set_rate_limit (monitor, g_value_get_int (value));
 115       break;
 116
 117     default:
 118       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 119       break;
 120     }
 121 }
 122
 123 static void
 124 g_file_monitor_get_property (GObject    *object,
 125                              guint       prop_id,
 126                              GValue     *value,
 127                              GParamSpec *pspec)
 128 {
 129   GFileMonitor *monitor;
 130   GFileMonitorPrivate *priv;
 131
 132   monitor = G_FILE_MONITOR (object);
 133   priv = monitor->priv;
 134
 135   switch (prop_id)
 136     {
 137     case PROP_RATE_LIMIT:
 138       g_value_set_int (value, priv->rate_limit_msec);
 139       break;
 140
 141     case PROP_CANCELLED:
 142       G_LOCK (cancelled);
 143       g_value_set_boolean (value, priv->cancelled);
 144       G_UNLOCK (cancelled);
 145       break;
 146
 147     default:
 148       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 149       break;
 150     }
 151 }
 152
 153 #define DEFAULT_RATE_LIMIT_MSECS 800
 154 #define DEFAULT_VIRTUAL_CHANGES_DONE_DELAY_SECS 2
 155
 156 static guint signals[LAST_SIGNAL] = { 0 };
 157
 158 static void
 159 rate_limiter_free (RateLimiter *limiter)
 160 {
 161   g_object_unref (limiter->file);
 162   g_slice_free (RateLimiter, limiter);
 163 }
 164
 165 static void
 166 g_file_monitor_finalize (GObject *object)
 167 {
 168   GFileMonitor *monitor;
 169
 170   monitor = G_FILE_MONITOR (object);
 171
 172   if (monitor->priv->timeout)
 173     {
 174       g_source_destroy (monitor->priv->timeout);
 175       g_source_unref (monitor->priv->timeout);
 176     }
 177
 178   g_hash_table_destroy (monitor->priv->rate_limiter);
 179
 180   if (monitor->priv->context)
 181     g_main_context_unref (monitor->priv->context);
 182
 183   G_OBJECT_CLASS (g_file_monitor_parent_class)->finalize (object);
 184 }
 185
 186 static void
 187 g_file_monitor_dispose (GObject *object)
 188 {
 189   GFileMonitor *monitor;
 190   GFileMonitorPrivate *priv;
 191
 192   monitor = G_FILE_MONITOR (object);
 193   priv = monitor->priv;
 194
 195   if (priv->pending_file_change_source)
 196     {
 197       g_source_destroy (priv->pending_file_change_source);
 198       g_source_unref (priv->pending_file_change_source);
 199       priv->pending_file_change_source = NULL;
 200     }
 201   g_slist_foreach (priv->pending_file_changes, (GFunc) file_change_free, NULL);
 202   g_slist_free (priv->pending_file_changes);
 203   priv->pending_file_changes = NULL;
 204
 205   /* Make sure we cancel on last unref */
 206   g_file_monitor_cancel (monitor);
 207
 208   G_OBJECT_CLASS (g_file_monitor_parent_class)->dispose (object);
 209 }
 210
 211 static void
 212 g_file_monitor_class_init (GFileMonitorClass *klass)
 213 {
 214   GObjectClass *object_class;
 215
 216   g_type_class_add_private (klass, sizeof (GFileMonitorPrivate));
 217
 218   object_class = G_OBJECT_CLASS (klass);
 219   object_class->finalize = g_file_monitor_finalize;
 220   object_class->dispose = g_file_monitor_dispose;
 221   object_class->get_property = g_file_monitor_get_property;
 222   object_class->set_property = g_file_monitor_set_property;
 223
 224   /**
 225    * GFileMonitor::changed:
 226    * @monitor: a #GFileMonitor.
 227    * @file: a #GFile.
 228    * @other_file: a #GFile.
 229    * @event_type: a #GFileMonitorEvent.
 230    *
 231    * Emitted when a file has been changed.
 232    **/
 233   signals[CHANGED] =
 234     g_signal_new (I_("changed"),
 235                   G_TYPE_FILE_MONITOR,
 236                   G_SIGNAL_RUN_LAST,
 237                   G_STRUCT_OFFSET (GFileMonitorClass, changed),
 238                   NULL, NULL,
 239                   _gio_marshal_VOID__OBJECT_OBJECT_ENUM,
 240                   G_TYPE_NONE, 3,
 241                   G_TYPE_FILE, G_TYPE_FILE, G_TYPE_FILE_MONITOR_EVENT);
 242
 243   g_object_class_install_property (object_class,
 244                                    PROP_RATE_LIMIT,
 245                                    g_param_spec_int ("rate-limit",
 246                                                      P_("Rate limit"),
 247                                                      P_("The limit of the monitor to watch for changes, in milliseconds"),
 248                                                      0, G_MAXINT,
 249                                                      DEFAULT_RATE_LIMIT_MSECS,
 250                                                      G_PARAM_READWRITE|
 251                                                      G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
 252
 253   g_object_class_install_property (object_class,
 254                                    PROP_CANCELLED,
 255                                    g_param_spec_boolean ("cancelled",
 256                                                          P_("Cancelled"),
 257                                                          P_("Whether the monitor has been cancelled"),
 258                                                          FALSE,
 259                                                          G_PARAM_READABLE|
 260                                                          G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
 261 }
 262
 263 static void
 264 g_file_monitor_init (GFileMonitor *monitor)
 265 {
 266   monitor->priv = G_TYPE_INSTANCE_GET_PRIVATE (monitor,
 267                                                G_TYPE_FILE_MONITOR,
 268                                                GFileMonitorPrivate);
 269   monitor->priv->rate_limit_msec = DEFAULT_RATE_LIMIT_MSECS;
 270   monitor->priv->rate_limiter = g_hash_table_new_full (g_file_hash, (GEqualFunc)g_file_equal,
 271                                                        NULL, (GDestroyNotify) rate_limiter_free);
 272   monitor->priv->context = g_main_context_get_thread_default ();
 273 }
 274
 275 /**
 276  * g_file_monitor_is_cancelled:
 277  * @monitor: a #GFileMonitor
 278  *
 279  * Returns whether the monitor is canceled.
 280  *
 281  * Returns: %TRUE if monitor is canceled. %FALSE otherwise.
 282  **/
 283 gboolean
 284 g_file_monitor_is_cancelled (GFileMonitor *monitor)
 285 {
 286   gboolean res;
 287
 288   g_return_val_if_fail (G_IS_FILE_MONITOR (monitor), FALSE);
 289
 290   G_LOCK (cancelled);
 291   res = monitor->priv->cancelled;
 292   G_UNLOCK (cancelled);
 293
 294   return res;
 295 }
 296
 297 /**
 298  * g_file_monitor_cancel:
 299  * @monitor: a #GFileMonitor.
 300  *
 301  * Cancels a file monitor.
 302  *
 303  * Returns: %TRUE if monitor was cancelled.
 304  **/
 305 gboolean
 306 g_file_monitor_cancel (GFileMonitor* monitor)
 307 {
 308   GFileMonitorClass *klass;
 309
 310   g_return_val_if_fail (G_IS_FILE_MONITOR (monitor), FALSE);
 311
 312   G_LOCK (cancelled);
 313   if (monitor->priv->cancelled)
 314     {
 315       G_UNLOCK (cancelled);
 316       return TRUE;
 317     }
 318
 319   monitor->priv->cancelled = TRUE;
 320   G_UNLOCK (cancelled);
 321
 322   g_object_notify (G_OBJECT (monitor), "cancelled");
 323
 324   klass = G_FILE_MONITOR_GET_CLASS (monitor);
 325   return (* klass->cancel) (monitor);
 326 }
 327
 328 /**
 329  * g_file_monitor_set_rate_limit:
 330  * @monitor: a #GFileMonitor.
 331  * @limit_msecs: a integer with the limit in milliseconds to
 332  * poll for changes.
 333  *
 334  * Sets the rate limit to which the @monitor will report
 335  * consecutive change events to the same file.
 336  *
 337  **/
 338 void
 339 g_file_monitor_set_rate_limit (GFileMonitor *monitor,
 340                                int           limit_msecs)
 341 {
 342   GFileMonitorPrivate *priv;
 343
 344   g_return_if_fail (G_IS_FILE_MONITOR (monitor));
 345
 346   priv = monitor->priv;
 347   if (priv->rate_limit_msec != limit_msecs)
 348     {
 349       monitor->priv->rate_limit_msec = limit_msecs;
 350       g_object_notify (G_OBJECT (monitor), "rate-limit");
 351     }
 352 }
 353
 354 struct _FileChange {
 355   GFile             *child;
 356   GFile             *other_file;
 357   GFileMonitorEvent  event_type;
 358 };
 359
 360 static void
 361 file_change_free (FileChange *change)
 362 {
 363   g_object_unref (change->child);
 364   if (change->other_file)
 365     g_object_unref (change->other_file);
 366
 367   g_slice_free (FileChange, change);
 368 }
 369
 370 static gboolean
 371 emit_cb (gpointer data)
 372 {
 373   GFileMonitor *monitor = G_FILE_MONITOR (data);
 374   GSList *pending, *iter;
 375
 376   pending = g_slist_reverse (monitor->priv->pending_file_changes);
 377   monitor->priv->pending_file_changes = NULL;
 378   if (monitor->priv->pending_file_change_source)
 379     {
 380       g_source_unref (monitor->priv->pending_file_change_source);
 381       monitor->priv->pending_file_change_source = NULL;
 382     }
 383
 384   g_object_ref (monitor);
 385   for (iter = pending; iter; iter = iter->next)
 386     {
 387        FileChange *change = iter->data;
 388        g_signal_emit (monitor, signals[CHANGED], 0,
 389                       change->child, change->other_file, change->event_type);
 390        file_change_free (change);
 391     }
 392   g_slist_free (pending);
 393   g_object_unref (monitor);
 394
 395   return FALSE;
 396 }
 397
 398 static void
 399 emit_in_idle (GFileMonitor      *monitor,
 400               GFile             *child,
 401               GFile             *other_file,
 402               GFileMonitorEvent  event_type)
 403 {
 404   GSource *source;
 405   FileChange *change;
 406   GFileMonitorPrivate *priv;
 407
 408   priv = monitor->priv;
 409
 410   change = g_slice_new (FileChange);
 411
 412   change->child = g_object_ref (child);
 413   if (other_file)
 414     change->other_file = g_object_ref (other_file);
 415   else
 416     change->other_file = NULL;
 417   change->event_type = event_type;
 418
 419   if (!priv->pending_file_change_source)
 420     {
 421       source = g_idle_source_new ();
 422       priv->pending_file_change_source = source;
 423       g_source_set_priority (source, 0);
 424
 425       /* We don't ref monitor here - instead dispose will free any
 426        * pending idles.
 427        */
 428       g_source_set_callback (source, emit_cb, monitor, NULL);
 429       g_source_attach (source, monitor->priv->context);
 430     }
 431   /* We reverse this in the processor */
 432   priv->pending_file_changes = g_slist_prepend (priv->pending_file_changes, change);
 433 }
 434
 435 static guint32
 436 get_time_msecs (void)
 437 {
 438   return g_thread_gettime() / (1000 * 1000);
 439 }
 440
 441 static guint32
 442 time_difference (guint32 from, guint32 to)
 443 {
 444   if (from > to)
 445     return 0;
 446   return to - from;
 447 }
 448
 449 /* Change event rate limiting support: */
 450
 451 static RateLimiter *
 452 new_limiter (GFileMonitor *monitor,
 453              GFile             *file)
 454 {
 455   RateLimiter *limiter;
 456
 457   limiter = g_slice_new0 (RateLimiter);
 458   limiter->file = g_object_ref (file);
 459   g_hash_table_insert (monitor->priv->rate_limiter, file, limiter);
 460
 461   return limiter;
 462 }
 463
 464 static void
 465 rate_limiter_send_virtual_changes_done_now (GFileMonitor *monitor,
 466                                             RateLimiter  *limiter)
 467 {
 468   if (limiter->send_virtual_changes_done_at != 0)
 469     {
 470       emit_in_idle (monitor, limiter->file, NULL,
 471                     G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT);
 472       limiter->send_virtual_changes_done_at = 0;
 473     }
 474 }
 475
 476 static void
 477 rate_limiter_send_delayed_change_now (GFileMonitor *monitor,
 478                                       RateLimiter *limiter,
 479                                       guint32 time_now)
 480 {
 481   if (limiter->send_delayed_change_at != 0)
 482     {
 483       emit_in_idle (monitor,
 484                     limiter->file, NULL,
 485                     G_FILE_MONITOR_EVENT_CHANGED);
 486       limiter->send_delayed_change_at = 0;
 487       limiter->last_sent_change_time = time_now;
 488     }
 489 }
 490
 491 typedef struct {
 492   guint32 min_time;
 493   guint32 time_now;
 494   GFileMonitor *monitor;
 495 } ForEachData;
 496
 497 static gboolean
 498 calc_min_time (GFileMonitor *monitor,
 499                RateLimiter *limiter,
 500                guint32 time_now,
 501                guint32 *min_time)
 502 {
 503   gboolean delete_me;
 504   guint32 expire_at;
 505
 506   delete_me = TRUE;
 507
 508   if (limiter->last_sent_change_time != 0)
 509     {
 510       /* Set a timeout at 2*rate limit so that we can clear out the change from the hash eventualy */
 511       expire_at = limiter->last_sent_change_time + 2 * monitor->priv->rate_limit_msec;
 512
 513       if (time_difference (time_now, expire_at) > 0)
 514         {
 515           delete_me = FALSE;
 516           *min_time = MIN (*min_time,
 517                            time_difference (time_now, expire_at));
 518         }
 519     }
 520
 521   if (limiter->send_delayed_change_at != 0)
 522     {
 523       delete_me = FALSE;
 524       *min_time = MIN (*min_time,
 525                        time_difference (time_now, limiter->send_delayed_change_at));
 526     }
 527
 528   if (limiter->send_virtual_changes_done_at != 0)
 529     {
 530       delete_me = FALSE;
 531       *min_time = MIN (*min_time,
 532                        time_difference (time_now, limiter->send_virtual_changes_done_at));
 533     }
 534
 535   return delete_me;
 536 }
 537
 538 static gboolean
 539 foreach_rate_limiter_fire (gpointer key,
 540                            gpointer value,
 541                            gpointer user_data)
 542 {
 543   RateLimiter *limiter = value;
 544   ForEachData *data = user_data;
 545
 546   if (limiter->send_delayed_change_at != 0 &&
 547       time_difference (data->time_now, limiter->send_delayed_change_at) == 0)
 548     rate_limiter_send_delayed_change_now (data->monitor, limiter, data->time_now);
 549
 550   if (limiter->send_virtual_changes_done_at != 0 &&
 551       time_difference (data->time_now, limiter->send_virtual_changes_done_at) == 0)
 552     rate_limiter_send_virtual_changes_done_now (data->monitor, limiter);
 553
 554   return calc_min_time (data->monitor, limiter, data->time_now, &data->min_time);
 555 }
 556
 557 static gboolean
 558 rate_limiter_timeout (gpointer timeout_data)
 559 {
 560   GFileMonitor *monitor = timeout_data;
 561   ForEachData data;
 562   GSource *source;
 563
 564   data.min_time = G_MAXUINT32;
 565   data.monitor = monitor;
 566   data.time_now = get_time_msecs ();
 567   g_hash_table_foreach_remove (monitor->priv->rate_limiter,
 568                                foreach_rate_limiter_fire,
 569                                &data);
 570
 571   /* Remove old timeout */
 572   if (monitor->priv->timeout)
 573     {
 574       g_source_destroy (monitor->priv->timeout);
 575       g_source_unref (monitor->priv->timeout);
 576       monitor->priv->timeout = NULL;
 577       monitor->priv->timeout_fires_at = 0;
 578     }
 579
 580   /* Set up new timeout */
 581   if (data.min_time != G_MAXUINT32)
 582     {
 583       source = g_timeout_source_new (data.min_time + 1); /* + 1 to make sure we've really passed the time */
 584       g_source_set_callback (source, rate_limiter_timeout, monitor, NULL);
 585       g_source_attach (source, monitor->priv->context);
 586
 587       monitor->priv->timeout = source;
 588       monitor->priv->timeout_fires_at = data.time_now + data.min_time;
 589     }
 590
 591   return FALSE;
 592 }
 593
 594 static gboolean
 595 foreach_rate_limiter_update (gpointer key,
 596                              gpointer value,
 597                              gpointer user_data)
 598 {
 599   RateLimiter *limiter = value;
 600   ForEachData *data = user_data;
 601
 602   return calc_min_time (data->monitor, limiter, data->time_now, &data->min_time);
 603 }
 604
 605 static void
 606 update_rate_limiter_timeout (GFileMonitor *monitor,
 607                              guint new_time)
 608 {
 609   ForEachData data;
 610   GSource *source;
 611
 612   if (monitor->priv->timeout_fires_at != 0 && new_time != 0 &&
 613       time_difference (new_time, monitor->priv->timeout_fires_at) == 0)
 614     return; /* Nothing to do, we already fire earlier than that */
 615
 616   data.min_time = G_MAXUINT32;
 617   data.monitor = monitor;
 618   data.time_now = get_time_msecs ();
 619   g_hash_table_foreach_remove (monitor->priv->rate_limiter,
 620                                foreach_rate_limiter_update,
 621                                &data);
 622
 623   /* Remove old timeout */
 624   if (monitor->priv->timeout)
 625     {
 626       g_source_destroy (monitor->priv->timeout);
 627       g_source_unref (monitor->priv->timeout);
 628       monitor->priv->timeout_fires_at = 0;
 629       monitor->priv->timeout = NULL;
 630     }
 631
 632   /* Set up new timeout */
 633   if (data.min_time != G_MAXUINT32)
 634     {
 635       source = g_timeout_source_new (data.min_time + 1);  /* + 1 to make sure we've really passed the time */
 636       g_source_set_callback (source, rate_limiter_timeout, monitor, NULL);
 637       g_source_attach (source, monitor->priv->context);
 638
 639       monitor->priv->timeout = source;
 640       monitor->priv->timeout_fires_at = data.time_now + data.min_time;
 641     }
 642 }
 643
 644 /**
 645  * g_file_monitor_emit_event:
 646  * @monitor: a #GFileMonitor.
 647  * @child: a #GFile.
 648  * @other_file: a #GFile.
 649  * @event_type: a set of #GFileMonitorEvent flags.
 650  *
 651  * Emits the #GFileMonitor::changed signal if a change
 652  * has taken place. Should be called from file monitor
 653  * implementations only.
 654  *
 655  * The signal will be emitted from an idle handler (in the <link
 656  * linkend="g-main-context-push-thread-default">thread-default main
 657  * context</link>).
 658  **/
 659 void
 660 g_file_monitor_emit_event (GFileMonitor      *monitor,
 661                            GFile             *child,
 662                            GFile             *other_file,
 663                            GFileMonitorEvent  event_type)
 664 {
 665   guint32 time_now, since_last;
 666   gboolean emit_now;
 667   RateLimiter *limiter;
 668
 669   g_return_if_fail (G_IS_FILE_MONITOR (monitor));
 670   g_return_if_fail (G_IS_FILE (child));
 671
 672   limiter = g_hash_table_lookup (monitor->priv->rate_limiter, child);
 673
 674   if (event_type != G_FILE_MONITOR_EVENT_CHANGED)
 675     {
 676       if (limiter)
 677         {
 678           rate_limiter_send_delayed_change_now (monitor, limiter, get_time_msecs ());
 679           if (event_type == G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT)
 680             limiter->send_virtual_changes_done_at = 0;
 681           else
 682             rate_limiter_send_virtual_changes_done_now (monitor, limiter);
 683           update_rate_limiter_timeout (monitor, 0);
 684         }
 685       emit_in_idle (monitor, child, other_file, event_type);
 686     }
 687   else
 688     {
 689       /* Changed event, rate limit */
 690       time_now = get_time_msecs ();
 691       emit_now = TRUE;
 692
 693       if (limiter)
 694         {
 695           since_last = time_difference (limiter->last_sent_change_time, time_now);
 696           if (since_last < monitor->priv->rate_limit_msec)
 697             {
 698               /* We ignore this change, but arm a timer so that we can fire it later if we
 699                  don't get any other events (that kill this timeout) */
 700               emit_now = FALSE;
 701               if (limiter->send_delayed_change_at == 0)
 702                 {
 703                   limiter->send_delayed_change_at = time_now + monitor->priv->rate_limit_msec;
 704                   update_rate_limiter_timeout (monitor, limiter->send_delayed_change_at);
 705                 }
 706             }
 707         }
 708
 709       if (limiter == NULL)
 710         limiter = new_limiter (monitor, child);
 711
 712       if (emit_now)
 713         {
 714           emit_in_idle (monitor, child, other_file, event_type);
 715
 716           limiter->last_sent_change_time = time_now;
 717           limiter->send_delayed_change_at = 0;
 718           /* Set a timeout of 2*rate limit so that we can clear out the change from the hash eventualy */
 719           update_rate_limiter_timeout (monitor, time_now + 2 * monitor->priv->rate_limit_msec);
 720         }
 721
 722       /* Schedule a virtual change done. This is removed if we get a real one, and
 723          postponed if we get more change events. */
 724
 725       limiter->send_virtual_changes_done_at = time_now + DEFAULT_VIRTUAL_CHANGES_DONE_DELAY_SECS * 1000;
 726       update_rate_limiter_timeout (monitor, limiter->send_virtual_changes_done_at);
 727     }
 728 }
 729
 730 #define __G_FILE_MONITOR_C__
 731 #include "gioaliasdef.c"