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