summaryrefslogtreecommitdiff
path: root/plugins/housekeeping/msd-disk-space.c
blob: 91738e050adef4cf493f8353bc46ae460df9a2a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
 * vim: set et sw=8 ts=8:
 *
 * Copyright (c) 2008, Novell, Inc.
 * Copyright (C) 2012-2021 MATE Developers
 *
 * Authors: Vincent Untz <vuntz@gnome.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/* gcc -DHAVE_LIBNOTIFY -DTEST -Wall `pkg-config --cflags --libs gobject-2.0 gio-unix-2.0 glib-2.0 gtk+-2.0 libnotify` -o msd-disk-space-test msd-disk-space.c */

#include "config.h"

#include <sys/statvfs.h>
#include <time.h>
#include <unistd.h>

#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>
#include <gio/gunixmounts.h>
#include <gio/gio.h>
#include <gtk/gtk.h>

#include "msd-disk-space.h"
#include "msd-ldsm-dialog.h"
#include "msd-ldsm-trash-empty.h"

#define GIGABYTE                   1024 * 1024 * 1024

#define CHECK_EVERY_X_SECONDS      60

#define DISK_SPACE_ANALYZER        "mate-disk-usage-analyzer"

#define SETTINGS_HOUSEKEEPING_SCHEMA      "org.mate.SettingsDaemon.plugins.housekeeping"
#define SETTINGS_FREE_PC_NOTIFY_KEY       "free-percent-notify"
#define SETTINGS_FREE_PC_NOTIFY_AGAIN_KEY "free-percent-notify-again"
#define SETTINGS_FREE_SIZE_NO_NOTIFY      "free-size-gb-no-notify"
#define SETTINGS_MIN_NOTIFY_PERIOD        "min-notify-period"
#define SETTINGS_IGNORE_PATHS             "ignore-paths"

typedef struct
{
        GUnixMountEntry *mount;
        struct statvfs buf;
        time_t notify_time;
} LdsmMountInfo;

static GHashTable        *ldsm_notified_hash = NULL;
static unsigned int       ldsm_timeout_id = 0;
static GUnixMountMonitor *ldsm_monitor = NULL;
static double             free_percent_notify = 0.05;
static double             free_percent_notify_again = 0.01;
static unsigned int       free_size_gb_no_notify = 2;
static unsigned int       min_notify_period = 10;
static GSList            *ignore_paths = NULL;
static GSettings         *settings = NULL;
static MsdLdsmDialog     *dialog = NULL;
static guint64           *time_read;

static gchar*
ldsm_get_fs_id_for_path (const gchar *path)
{
        GFile *file;
        GFileInfo *fileinfo;
        gchar *attr_id_fs;

        file = g_file_new_for_path (path);
        fileinfo = g_file_query_info (file, G_FILE_ATTRIBUTE_ID_FILESYSTEM, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, NULL);
        if (fileinfo) {
                attr_id_fs = g_strdup (g_file_info_get_attribute_string (fileinfo, G_FILE_ATTRIBUTE_ID_FILESYSTEM));
                g_object_unref (fileinfo);
        } else {
                attr_id_fs = NULL;
        }

        g_object_unref (file);

        return attr_id_fs;
}

static gboolean
ldsm_mount_has_trash (LdsmMountInfo *mount)
{
        const gchar *user_data_dir;
        gchar *user_data_attr_id_fs;
        gchar *path_attr_id_fs;
        gboolean mount_uses_user_trash = FALSE;
        gchar *trash_files_dir;
        gboolean has_trash = FALSE;
        GDir *dir;
        const gchar *path;

        user_data_dir = g_get_user_data_dir ();
        user_data_attr_id_fs = ldsm_get_fs_id_for_path (user_data_dir);

        path = g_unix_mount_get_mount_path (mount->mount);
        path_attr_id_fs = ldsm_get_fs_id_for_path (path);

        if (g_strcmp0 (user_data_attr_id_fs, path_attr_id_fs) == 0) {
                /* The volume that is low on space is on the same volume as our home
                 * directory. This means the trash is at $XDG_DATA_HOME/Trash,
                 * not at the root of the volume which is full.
                 */
                mount_uses_user_trash = TRUE;
        }

        g_free (user_data_attr_id_fs);
        g_free (path_attr_id_fs);

        /* I can't think of a better way to find out if a volume has any trash. Any suggestions? */
        if (mount_uses_user_trash) {
                trash_files_dir = g_build_filename (g_get_user_data_dir (), "Trash", "files", NULL);
        } else {
                gchar *uid;

                uid = g_strdup_printf ("%d", getuid ());
                trash_files_dir = g_build_filename (path, ".Trash", uid, "files", NULL);
                if (!g_file_test (trash_files_dir, G_FILE_TEST_IS_DIR)) {
                        gchar *trash_dir;

                        g_free (trash_files_dir);
                        trash_dir = g_strdup_printf (".Trash-%s", uid);
                        trash_files_dir = g_build_filename (path, trash_dir, "files", NULL);
                        g_free (trash_dir);
                        if (!g_file_test (trash_files_dir, G_FILE_TEST_IS_DIR)) {
                                g_free (trash_files_dir);
                                g_free (uid);
                                return has_trash;
                        }
                }
                g_free (uid);
        }

        dir = g_dir_open (trash_files_dir, 0, NULL);
        if (dir) {
                if (g_dir_read_name (dir))
                        has_trash = TRUE;
                g_dir_close (dir);
        }

        g_free (trash_files_dir);

        return has_trash;
}

static void
ldsm_analyze_path (const gchar *path)
{
        const gchar *argv[] = { DISK_SPACE_ANALYZER, path, NULL };

        g_spawn_async (NULL, (gchar **) argv, NULL, G_SPAWN_SEARCH_PATH,
                        NULL, NULL, NULL, NULL);
}

static gboolean
ldsm_notify_for_mount (LdsmMountInfo *mount,
                       gboolean       multiple_volumes,
                       gboolean       other_usable_volumes)
{
        gchar  *name, *program;
        gint64 free_space;
        gint response;
        gboolean has_trash;
        gboolean has_disk_analyzer;
        gboolean retval = TRUE;
        gchar *path;

        /* Don't show a dialog if one is already displayed */
        if (dialog)
                return retval;

        name = g_unix_mount_guess_name (mount->mount);
        free_space = (gint64) mount->buf.f_frsize * (gint64) mount->buf.f_bavail;
        has_trash = ldsm_mount_has_trash (mount);
        path = g_strdup (g_unix_mount_get_mount_path (mount->mount));

        program = g_find_program_in_path (DISK_SPACE_ANALYZER);
        has_disk_analyzer = (program != NULL);
        g_free (program);

        dialog = msd_ldsm_dialog_new (other_usable_volumes,
                                      multiple_volumes,
                                      has_disk_analyzer,
                                      has_trash,
                                      free_space,
                                      name,
                                      path);

        g_free (name);

        g_object_ref (G_OBJECT (dialog));
        response = gtk_dialog_run (GTK_DIALOG (dialog));

	gtk_widget_destroy (GTK_WIDGET (dialog));
        dialog = NULL;

        switch (response) {
        case GTK_RESPONSE_CANCEL:
                retval = FALSE;
                break;
        case MSD_LDSM_DIALOG_RESPONSE_ANALYZE:
                retval = FALSE;
                ldsm_analyze_path (path);
                break;
        case MSD_LDSM_DIALOG_RESPONSE_EMPTY_TRASH:
                retval = TRUE;
                msd_ldsm_trash_empty ();
                break;
        case GTK_RESPONSE_NONE:
        case GTK_RESPONSE_DELETE_EVENT:
                retval = TRUE;
                break;
        default:
                g_assert_not_reached ();
        }

        g_free (path);

        return retval;
}

static gboolean
ldsm_mount_has_space (LdsmMountInfo *mount)
{
        gdouble free_space;

        free_space = (double) mount->buf.f_bavail / (double) mount->buf.f_blocks;
        /* enough free space, nothing to do */
        if (free_space > free_percent_notify)
                return TRUE;

        if (((gint64) mount->buf.f_frsize * (gint64) mount->buf.f_bavail) > ((gint64) free_size_gb_no_notify * GIGABYTE))
                return TRUE;

        /* If we got here, then this volume is low on space */
        return FALSE;
}

static gboolean
ldsm_mount_is_virtual (LdsmMountInfo *mount)
{
        if (mount->buf.f_blocks == 0) {
                /* Filesystems with zero blocks are virtual */
                return TRUE;
        }

        return FALSE;
}

static gint
ldsm_ignore_path_compare (gconstpointer a,
                          gconstpointer b)
{
        return g_strcmp0 ((const gchar *)a, (const gchar *)b);
}

static gboolean
ldsm_mount_is_user_ignore (const gchar *path)
{
        if (g_slist_find_custom (ignore_paths, path, (GCompareFunc) ldsm_ignore_path_compare) != NULL)
                return TRUE;
        else
                return FALSE;
}

static gboolean
is_in (const gchar *value, const gchar *set[])
{
        int i;
        for (i = 0; set[i] != NULL; i++)
        {
              if (strcmp (set[i], value) == 0)
                return TRUE;
        }
        return FALSE;
}

static gboolean
ldsm_mount_should_ignore (GUnixMountEntry *mount)
{
        const gchar *fs, *device, *path;

        path = g_unix_mount_get_mount_path (mount);
        if (ldsm_mount_is_user_ignore (path))
                return TRUE;

        /* This is borrowed from GLib and used as a way to determine
         * which mounts we should ignore by default. GLib doesn't
         * expose this in a way that allows it to be used for this
         * purpose
         */

        /* We also ignore network filesystems */

        const gchar *ignore_fs[] = {
                "adfs",
                "afs",
                "auto",
                "autofs",
                "autofs4",
                "cifs",
                "cxfs",
                "devfs",
                "devpts",
                "ecryptfs",
                "fdescfs",
                "gfs",
                "gfs2",
                "kernfs",
                "linprocfs",
                "linsysfs",
                "lustre",
                "lustre_lite",
                "ncpfs",
                "nfs",
                "nfs4",
                "nfsd",
                "ocfs2",
                "proc",
                "procfs",
                "ptyfs",
                "rpc_pipefs",
                "selinuxfs",
                "smbfs",
                "sysfs",
                "tmpfs",
                "usbfs",
                "zfs",
                NULL
        };
        const gchar *ignore_devices[] = {
                "none",
                "sunrpc",
                "devpts",
                "nfsd",
                "/dev/loop",
                "/dev/vn",
                NULL
        };

        fs = g_unix_mount_get_fs_type (mount);
        device = g_unix_mount_get_device_path (mount);

        if (is_in (fs, ignore_fs))
                return TRUE;

        if (is_in (device, ignore_devices))
                return TRUE;

        return FALSE;
}

static void
ldsm_free_mount_info (gpointer data)
{
        LdsmMountInfo *mount = data;

        g_return_if_fail (mount != NULL);

        g_unix_mount_free (mount->mount);
        g_free (mount);
}

static void
ldsm_maybe_warn_mounts (GList *mounts,
                        gboolean multiple_volumes,
                        gboolean other_usable_volumes)
{
        GList *l;
        gboolean done = FALSE;

        for (l = mounts; l != NULL; l = l->next) {
                LdsmMountInfo *mount_info = l->data;
                LdsmMountInfo *previous_mount_info;
                gdouble free_space;
                gdouble previous_free_space;
                time_t curr_time;
                const gchar *path;
                gboolean show_notify;

                if (done) {
                        /* Don't show any more dialogs if the user took action with the last one. The user action
                         * might free up space on multiple volumes, making the next dialog redundant.
                         */
                        ldsm_free_mount_info (mount_info);
                        continue;
                }

                path = g_unix_mount_get_mount_path (mount_info->mount);

                previous_mount_info = g_hash_table_lookup (ldsm_notified_hash, path);
                if (previous_mount_info != NULL)
                        previous_free_space = (gdouble) previous_mount_info->buf.f_bavail / (gdouble) previous_mount_info->buf.f_blocks;

                free_space = (gdouble) mount_info->buf.f_bavail / (gdouble) mount_info->buf.f_blocks;

                if (previous_mount_info == NULL) {
                        /* We haven't notified for this mount yet */
                        show_notify = TRUE;
                        mount_info->notify_time = time (NULL);
                        g_hash_table_replace (ldsm_notified_hash, g_strdup (path), mount_info);
                } else if ((previous_free_space - free_space) > free_percent_notify_again) {
                        /* We've notified for this mount before and free space has decreased sufficiently since last time to notify again */
                        curr_time = time (NULL);
                        if (difftime (curr_time, previous_mount_info->notify_time) > (gdouble)(min_notify_period * 60)) {
                                show_notify = TRUE;
                                mount_info->notify_time = curr_time;
                        } else {
                                /* It's too soon to show the dialog again. However, we still replace the LdsmMountInfo
                                 * struct in the hash table, but give it the notfiy time from the previous dialog.
                                 * This will stop the notification from reappearing unnecessarily as soon as the timeout expires.
                                 */
                                show_notify = FALSE;
                                mount_info->notify_time = previous_mount_info->notify_time;
                        }
                        g_hash_table_replace (ldsm_notified_hash, g_strdup (path), mount_info);
                } else {
                        /* We've notified for this mount before, but the free space hasn't decreased sufficiently to notify again */
                        ldsm_free_mount_info (mount_info);
                        show_notify = FALSE;
                }

                if (show_notify) {
                        if (ldsm_notify_for_mount (mount_info, multiple_volumes, other_usable_volumes))
                                done = TRUE;
                }
        }
}

static gboolean
ldsm_check_all_mounts (gpointer data)
{
        GList *mounts;
        GList *l;
        GList *check_mounts = NULL;
        GList *full_mounts = NULL;
        guint number_of_mounts;
        guint number_of_full_mounts;
        gboolean multiple_volumes = FALSE;
        gboolean other_usable_volumes = FALSE;

        /* We iterate through the static mounts in /etc/fstab first, seeing if
         * they're mounted by checking if the GUnixMountPoint has a corresponding GUnixMountEntry.
         * Iterating through the static mounts means we automatically ignore dynamically mounted media.
         */
        mounts = g_unix_mount_points_get (time_read);

        for (l = mounts; l != NULL; l = l->next) {
                GUnixMountPoint *mount_point = l->data;
                GUnixMountEntry *mount;
                LdsmMountInfo *mount_info;
                const gchar *path;

                path = g_unix_mount_point_get_mount_path (mount_point);
                mount = g_unix_mount_at (path, time_read);
                g_unix_mount_point_free (mount_point);
                if (mount == NULL) {
                        /* The GUnixMountPoint is not mounted */
                        continue;
                }

                mount_info = g_new0 (LdsmMountInfo, 1);
                mount_info->mount = mount;

                path = g_unix_mount_get_mount_path (mount);

                if (g_unix_mount_is_readonly (mount)) {
                        ldsm_free_mount_info (mount_info);
                        continue;
                }

                if (ldsm_mount_should_ignore (mount)) {
                        ldsm_free_mount_info (mount_info);
                        continue;
                }

                if (statvfs (path, &mount_info->buf) != 0) {
                        ldsm_free_mount_info (mount_info);
                        continue;
                }

                if (ldsm_mount_is_virtual (mount_info)) {
                        ldsm_free_mount_info (mount_info);
                        continue;
                }

                check_mounts = g_list_prepend (check_mounts, mount_info);
        }
        g_list_free (mounts);

        number_of_mounts = g_list_length (check_mounts);
        if (number_of_mounts > 1)
                multiple_volumes = TRUE;

        for (l = check_mounts; l != NULL; l = l->next) {
                LdsmMountInfo *mount_info = l->data;

                if (!ldsm_mount_has_space (mount_info)) {
                        full_mounts = g_list_prepend (full_mounts, mount_info);
                } else {
                        g_hash_table_remove (ldsm_notified_hash, g_unix_mount_get_mount_path (mount_info->mount));
                        ldsm_free_mount_info (mount_info);
                }
        }

        number_of_full_mounts = g_list_length (full_mounts);
        if (number_of_mounts > number_of_full_mounts)
                other_usable_volumes = TRUE;

        ldsm_maybe_warn_mounts (full_mounts, multiple_volumes,
                                other_usable_volumes);

        g_list_free (check_mounts);
        g_list_free (full_mounts);

        return TRUE;
}

static gboolean
ldsm_is_hash_item_not_in_mounts (gpointer key,
                                 gpointer value,
                                 gpointer user_data)
{
        GList *l;

        for (l = (GList *) user_data; l != NULL; l = l->next) {
                GUnixMountEntry *mount = l->data;
                const char *path;

                path = g_unix_mount_get_mount_path (mount);

                if (strcmp (path, key) == 0)
                        return FALSE;
        }

        return TRUE;
}

static void
ldsm_mounts_changed (GObject  *monitor G_GNUC_UNUSED,
                     gpointer  data G_GNUC_UNUSED)
{
        GList *mounts;

        /* remove the saved data for mounts that got removed */
        mounts = g_unix_mounts_get (time_read);
        g_hash_table_foreach_remove (ldsm_notified_hash,
                                     ldsm_is_hash_item_not_in_mounts, mounts);
        g_list_free_full (mounts, (GDestroyNotify) g_unix_mount_free);

        /* check the status now, for the new mounts */
        ldsm_check_all_mounts (NULL);

        /* and reset the timeout */
        if (ldsm_timeout_id)
                g_source_remove (ldsm_timeout_id);
        ldsm_timeout_id = g_timeout_add_seconds (CHECK_EVERY_X_SECONDS,
                                                 ldsm_check_all_mounts, NULL);
}

static gboolean
ldsm_is_hash_item_in_ignore_paths (gpointer key,
                                   gpointer value,
                                   gpointer user_data)
{
        return ldsm_mount_is_user_ignore (key);
}

static void
msd_ldsm_get_config (void)
{
        gchar **settings_list;

        free_percent_notify = g_settings_get_double (settings,
                                                     SETTINGS_FREE_PC_NOTIFY_KEY);
        if (free_percent_notify >= 1 || free_percent_notify < 0) {
                /* FIXME define min and max in gschema! */
                g_warning ("Invalid configuration of free_percent_notify: %f\n" \
                           "Using sensible default", free_percent_notify);
                free_percent_notify = 0.05;
        }

        free_percent_notify_again = g_settings_get_double (settings,
                                                           SETTINGS_FREE_PC_NOTIFY_AGAIN_KEY);
        if (free_percent_notify_again >= 1 || free_percent_notify_again < 0) {
                /* FIXME define min and max in gschema! */
                g_warning ("Invalid configuration of free_percent_notify_again: %f\n" \
                           "Using sensible default\n", free_percent_notify_again);
                free_percent_notify_again = 0.01;
        }

        free_size_gb_no_notify = g_settings_get_int (settings,
                                                     SETTINGS_FREE_SIZE_NO_NOTIFY);
        min_notify_period = g_settings_get_int (settings,
                                                SETTINGS_MIN_NOTIFY_PERIOD);

        if (ignore_paths != NULL) {
                g_slist_free_full (ignore_paths, g_free);
                ignore_paths = NULL;
        }

        settings_list = g_settings_get_strv (settings, SETTINGS_IGNORE_PATHS);
        if (settings_list != NULL) {
                guint i;

                for (i = 0; settings_list[i] != NULL; i++) {
                        if (settings_list[i] != NULL)
                                ignore_paths = g_slist_prepend (ignore_paths, g_strdup (settings_list[i]));
                }

                /* Make sure we dont leave stale entries in ldsm_notified_hash */
                g_hash_table_foreach_remove (ldsm_notified_hash,
                                             ldsm_is_hash_item_in_ignore_paths, NULL);

                g_strfreev (settings_list);
        }

}

static void
msd_ldsm_update_config (GSettings *gsettings G_GNUC_UNUSED,
                        gchar *key G_GNUC_UNUSED,
                        gpointer user_data G_GNUC_UNUSED)
{
        msd_ldsm_get_config ();
}

void
msd_ldsm_setup (gboolean check_now)
{
        if (ldsm_notified_hash || ldsm_timeout_id || ldsm_monitor) {
                g_warning ("Low disk space monitor already initialized.");
                return;
        }

        ldsm_notified_hash = g_hash_table_new_full (g_str_hash, g_str_equal,
                                                    g_free,
                                                    ldsm_free_mount_info);

        settings = g_settings_new (SETTINGS_HOUSEKEEPING_SCHEMA);
        msd_ldsm_get_config ();
        g_signal_connect (settings, "changed", G_CALLBACK (msd_ldsm_update_config), NULL);

        ldsm_monitor = g_unix_mount_monitor_get ();
        g_signal_connect (ldsm_monitor, "mounts-changed",
                          G_CALLBACK (ldsm_mounts_changed), NULL);

        if (check_now)
                ldsm_check_all_mounts (NULL);

        ldsm_timeout_id = g_timeout_add_seconds (CHECK_EVERY_X_SECONDS,
                                                 ldsm_check_all_mounts, NULL);

}

void
msd_ldsm_clean (void)
{
        if (ldsm_timeout_id)
                g_source_remove (ldsm_timeout_id);
        ldsm_timeout_id = 0;

        if (ldsm_notified_hash)
                g_hash_table_destroy (ldsm_notified_hash);
        ldsm_notified_hash = NULL;

        if (ldsm_monitor)
                g_object_unref (ldsm_monitor);
        ldsm_monitor = NULL;

        if (settings) {
                g_object_unref (settings);
        }

        if (dialog) {
                gtk_widget_destroy (GTK_WIDGET (dialog));
                dialog = NULL;
        }

        if (ignore_paths) {
                g_slist_free_full (ignore_paths, g_free);
        }
}

#ifdef TEST
int
main (int    argc,
      char **argv)
{
        GMainLoop *loop;

        gtk_init (&argc, &argv);

        loop = g_main_loop_new (NULL, FALSE);

        msd_ldsm_setup (TRUE);

        g_main_loop_run (loop);

        msd_ldsm_clean ();
        g_main_loop_unref (loop);

        return 0;
}
#endif /* TEST */