1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
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.
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.
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.
20 * Author: Alexander Larsson <alexl@redhat.com>
25 #include "glocaldirectorymonitor.h"
26 #include "gunixmounts.h"
27 #include "giomodule-priv.h"
43 static gboolean
g_local_directory_monitor_cancel (GFileMonitor
*monitor
);
44 static void mounts_changed (GUnixMountMonitor
*mount_monitor
,
47 G_DEFINE_ABSTRACT_TYPE (GLocalDirectoryMonitor
, g_local_directory_monitor
, G_TYPE_FILE_MONITOR
)
50 g_local_directory_monitor_finalize (GObject
*object
)
52 GLocalDirectoryMonitor
*local_monitor
;
53 local_monitor
= G_LOCAL_DIRECTORY_MONITOR (object
);
55 g_free (local_monitor
->dirname
);
57 if (local_monitor
->mount_monitor
)
59 g_signal_handlers_disconnect_by_func (local_monitor
->mount_monitor
, mounts_changed
, local_monitor
);
60 g_object_unref (local_monitor
->mount_monitor
);
61 local_monitor
->mount_monitor
= NULL
;
64 G_OBJECT_CLASS (g_local_directory_monitor_parent_class
)->finalize (object
);
68 g_local_directory_monitor_set_property (GObject
*object
,
82 G_OBJECT_WARN_INVALID_PROPERTY_ID (object
, property_id
, pspec
);
88 g_local_directory_monitor_constructor (GType type
,
89 guint n_construct_properties
,
90 GObjectConstructParam
*construct_properties
)
93 GLocalDirectoryMonitorClass
*klass
;
94 GObjectClass
*parent_class
;
95 GLocalDirectoryMonitor
*local_monitor
;
96 GFileMonitorFlags flags
= 0;
97 const gchar
*dirname
= NULL
;
100 klass
= G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_peek (G_TYPE_LOCAL_DIRECTORY_MONITOR
));
101 parent_class
= G_OBJECT_CLASS (g_type_class_peek_parent (klass
));
102 obj
= parent_class
->constructor (type
,
103 n_construct_properties
,
104 construct_properties
);
106 local_monitor
= G_LOCAL_DIRECTORY_MONITOR (obj
);
108 for (i
= 0; i
< n_construct_properties
; i
++)
110 if (strcmp ("dirname", g_param_spec_get_name (construct_properties
[i
].pspec
)) == 0)
112 g_warn_if_fail (G_VALUE_HOLDS_STRING (construct_properties
[i
].value
));
113 dirname
= g_value_get_string (construct_properties
[i
].value
);
115 if (strcmp ("flags", g_param_spec_get_name (construct_properties
[i
].pspec
)) == 0)
117 g_warn_if_fail (G_VALUE_HOLDS_FLAGS (construct_properties
[i
].value
));
118 flags
= g_value_get_flags (construct_properties
[i
].value
);
122 local_monitor
->dirname
= g_strdup (dirname
);
123 local_monitor
->flags
= flags
;
125 if (!klass
->mount_notify
&&
126 (flags
& G_FILE_MONITOR_WATCH_MOUNTS
))
129 /*claim everything was mounted */
130 local_monitor
->was_mounted
= TRUE
;
132 GUnixMountEntry
*mount
;
134 /* Emulate unmount detection */
136 mount
= g_unix_mount_at (local_monitor
->dirname
, NULL
);
138 local_monitor
->was_mounted
= mount
!= NULL
;
141 g_unix_mount_free (mount
);
143 local_monitor
->mount_monitor
= g_unix_mount_monitor_new ();
144 g_signal_connect_object (local_monitor
->mount_monitor
, "mounts-changed",
145 G_CALLBACK (mounts_changed
), local_monitor
, 0);
153 g_local_directory_monitor_class_init (GLocalDirectoryMonitorClass
* klass
)
155 GObjectClass
* gobject_class
= G_OBJECT_CLASS (klass
);
156 GFileMonitorClass
*file_monitor_class
= G_FILE_MONITOR_CLASS (klass
);
158 gobject_class
->finalize
= g_local_directory_monitor_finalize
;
159 gobject_class
->set_property
= g_local_directory_monitor_set_property
;
160 gobject_class
->constructor
= g_local_directory_monitor_constructor
;
162 file_monitor_class
->cancel
= g_local_directory_monitor_cancel
;
164 g_object_class_install_property (gobject_class
,
166 g_param_spec_string ("dirname",
167 P_("Directory name"),
168 P_("Directory to monitor"),
170 G_PARAM_CONSTRUCT_ONLY
|
172 G_PARAM_STATIC_NAME
|G_PARAM_STATIC_NICK
|G_PARAM_STATIC_BLURB
));
173 g_object_class_install_property (gobject_class
,
175 g_param_spec_flags ("flags",
178 G_TYPE_FILE_MONITOR_FLAGS
,
180 G_PARAM_CONSTRUCT_ONLY
|
182 G_PARAM_STATIC_NAME
|G_PARAM_STATIC_NICK
|G_PARAM_STATIC_BLURB
));
184 klass
->mount_notify
= FALSE
;
188 g_local_directory_monitor_init (GLocalDirectoryMonitor
*local_monitor
)
193 mounts_changed (GUnixMountMonitor
*mount_monitor
,
196 GLocalDirectoryMonitor
*local_monitor
= user_data
;
197 GUnixMountEntry
*mount
;
201 /* Emulate unmount detection */
204 /*claim everything was mounted */
207 mount
= g_unix_mount_at (local_monitor
->dirname
, NULL
);
209 is_mounted
= mount
!= NULL
;
212 g_unix_mount_free (mount
);
215 if (local_monitor
->was_mounted
!= is_mounted
)
217 if (local_monitor
->was_mounted
&& !is_mounted
)
219 file
= g_file_new_for_path (local_monitor
->dirname
);
220 g_file_monitor_emit_event (G_FILE_MONITOR (local_monitor
),
222 G_FILE_MONITOR_EVENT_UNMOUNTED
);
223 g_object_unref (file
);
225 local_monitor
->was_mounted
= is_mounted
;
230 get_default_local_directory_monitor (gpointer data
)
232 GLocalDirectoryMonitorClass
*chosen_class
;
233 GLocalDirectoryMonitorClass
**ret
= data
;
234 GIOExtensionPoint
*ep
;
235 GList
*extensions
, *l
;
237 _g_io_modules_ensure_loaded ();
239 ep
= g_io_extension_point_lookup (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME
);
241 extensions
= g_io_extension_point_get_extensions (ep
);
244 for (l
= extensions
; l
!= NULL
; l
= l
->next
)
246 GIOExtension
*extension
= l
->data
;
247 GLocalDirectoryMonitorClass
*klass
;
249 klass
= G_LOCAL_DIRECTORY_MONITOR_CLASS (g_io_extension_ref_class (extension
));
251 if (klass
->is_supported ())
253 chosen_class
= klass
;
257 g_type_class_unref (klass
);
263 return (gpointer
)G_TYPE_FROM_CLASS (chosen_class
);
266 return (gpointer
)G_TYPE_INVALID
;
270 _g_local_directory_monitor_new (const char *dirname
,
271 GFileMonitorFlags flags
,
274 static GOnce once_init
= G_ONCE_INIT
;
275 GTypeClass
*type_class
;
276 GFileMonitor
*monitor
;
280 g_once (&once_init
, get_default_local_directory_monitor
, &type_class
);
281 type
= (GType
)once_init
.retval
;
284 if (type
!= G_TYPE_INVALID
)
285 monitor
= G_FILE_MONITOR (g_object_new (type
, "dirname", dirname
, "flags", flags
, NULL
));
287 g_set_error_literal (error
, G_IO_ERROR
, G_IO_ERROR_FAILED
,
288 _("Unable to find default local directory monitor type"));
290 /* This is non-null on first pass here. Unref the class now.
291 * This is to avoid unloading the module and then loading it
292 * again which would happen if we unrefed the class
293 * before creating the monitor.
297 g_type_class_unref (type_class
);
303 g_local_directory_monitor_cancel (GFileMonitor
*monitor
)
305 GLocalDirectoryMonitor
*local_monitor
= G_LOCAL_DIRECTORY_MONITOR (monitor
);
307 if (local_monitor
->mount_monitor
)
309 g_signal_handlers_disconnect_by_func (local_monitor
->mount_monitor
, mounts_changed
, local_monitor
);
310 g_object_unref (local_monitor
->mount_monitor
);
311 local_monitor
->mount_monitor
= NULL
;
317 #define __G_LOCAL_DIRECTORY_MONITOR_C__
318 #include "gioaliasdef.c"