| /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| |
| /* GIO - GLib Input, Output and Streaming Library |
| * |
| * Copyright (C) 2006-2007 Red Hat, Inc. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General |
| * Public License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| * |
| * Author: Alexander Larsson <alexl@redhat.com> |
| * David Zeuthen <davidz@redhat.com> |
| */ |
| |
| #include "config.h" |
| |
| #include <string.h> |
| |
| #include <glib.h> |
| #include "gunixvolumemonitor.h" |
| #include "gunixmounts.h" |
| #include "gunixmount.h" |
| #include "gunixvolume.h" |
| #include "gmount.h" |
| #include "gmountprivate.h" |
| #include "giomodule.h" |
| #include "glibintl.h" |
| |
| |
| struct _GUnixVolumeMonitor { |
| GNativeVolumeMonitor parent; |
| |
| GUnixMountMonitor *mount_monitor; |
| |
| GList *last_mountpoints; |
| GList *last_mounts; |
| |
| GList *volumes; |
| GList *mounts; |
| }; |
| |
| static void mountpoints_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data); |
| static void mounts_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data); |
| static void update_volumes (GUnixVolumeMonitor *monitor); |
| static void update_mounts (GUnixVolumeMonitor *monitor); |
| |
| #define g_unix_volume_monitor_get_type _g_unix_volume_monitor_get_type |
| G_DEFINE_TYPE_WITH_CODE (GUnixVolumeMonitor, g_unix_volume_monitor, G_TYPE_NATIVE_VOLUME_MONITOR, |
| g_io_extension_point_implement (G_NATIVE_VOLUME_MONITOR_EXTENSION_POINT_NAME, |
| g_define_type_id, |
| "unix", |
| 0)); |
| |
| static void |
| g_unix_volume_monitor_finalize (GObject *object) |
| { |
| GUnixVolumeMonitor *monitor; |
| |
| monitor = G_UNIX_VOLUME_MONITOR (object); |
| |
| g_signal_handlers_disconnect_by_func (monitor->mount_monitor, mountpoints_changed, monitor); |
| g_signal_handlers_disconnect_by_func (monitor->mount_monitor, mounts_changed, monitor); |
| |
| g_object_unref (monitor->mount_monitor); |
| |
| g_list_free_full (monitor->last_mountpoints, (GDestroyNotify) g_unix_mount_point_free); |
| g_list_free_full (monitor->last_mounts, (GDestroyNotify) g_unix_mount_free); |
| |
| g_list_free_full (monitor->volumes, g_object_unref); |
| g_list_free_full (monitor->mounts, g_object_unref); |
| |
| G_OBJECT_CLASS (g_unix_volume_monitor_parent_class)->finalize (object); |
| } |
| |
| static void |
| g_unix_volume_monitor_dispose (GObject *object) |
| { |
| GUnixVolumeMonitor *monitor; |
| |
| monitor = G_UNIX_VOLUME_MONITOR (object); |
| |
| g_list_free_full (monitor->volumes, g_object_unref); |
| monitor->volumes = NULL; |
| |
| g_list_free_full (monitor->mounts, g_object_unref); |
| monitor->mounts = NULL; |
| |
| G_OBJECT_CLASS (g_unix_volume_monitor_parent_class)->dispose (object); |
| } |
| |
| static GList * |
| get_mounts (GVolumeMonitor *volume_monitor) |
| { |
| GUnixVolumeMonitor *monitor; |
| |
| monitor = G_UNIX_VOLUME_MONITOR (volume_monitor); |
| |
| return g_list_copy_deep (monitor->mounts, (GCopyFunc) g_object_ref, NULL); |
| } |
| |
| static GList * |
| get_volumes (GVolumeMonitor *volume_monitor) |
| { |
| GUnixVolumeMonitor *monitor; |
| |
| monitor = G_UNIX_VOLUME_MONITOR (volume_monitor); |
| |
| return g_list_copy_deep (monitor->volumes, (GCopyFunc) g_object_ref, NULL); |
| } |
| |
| static GList * |
| get_connected_drives (GVolumeMonitor *volume_monitor) |
| { |
| return NULL; |
| } |
| |
| static GVolume * |
| get_volume_for_uuid (GVolumeMonitor *volume_monitor, const char *uuid) |
| { |
| return NULL; |
| } |
| |
| static GMount * |
| get_mount_for_uuid (GVolumeMonitor *volume_monitor, const char *uuid) |
| { |
| return NULL; |
| } |
| |
| static gboolean |
| is_supported (void) |
| { |
| return TRUE; |
| } |
| |
| static GMount * |
| get_mount_for_mount_path (const char *mount_path, |
| GCancellable *cancellable) |
| { |
| GUnixMountEntry *mount_entry; |
| GUnixMount *mount; |
| |
| mount_entry = g_unix_mount_at (mount_path, NULL); |
| |
| if (!mount_entry) |
| return NULL; |
| |
| /* TODO: Set mountable volume? */ |
| mount = _g_unix_mount_new (NULL, mount_entry, NULL); |
| |
| g_unix_mount_free (mount_entry); |
| |
| return G_MOUNT (mount); |
| } |
| |
| static void |
| g_unix_volume_monitor_class_init (GUnixVolumeMonitorClass *klass) |
| { |
| GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
| GVolumeMonitorClass *monitor_class = G_VOLUME_MONITOR_CLASS (klass); |
| GNativeVolumeMonitorClass *native_class = G_NATIVE_VOLUME_MONITOR_CLASS (klass); |
| |
| gobject_class->finalize = g_unix_volume_monitor_finalize; |
| gobject_class->dispose = g_unix_volume_monitor_dispose; |
| |
| monitor_class->get_mounts = get_mounts; |
| monitor_class->get_volumes = get_volumes; |
| monitor_class->get_connected_drives = get_connected_drives; |
| monitor_class->get_volume_for_uuid = get_volume_for_uuid; |
| monitor_class->get_mount_for_uuid = get_mount_for_uuid; |
| monitor_class->is_supported = is_supported; |
| |
| native_class->get_mount_for_mount_path = get_mount_for_mount_path; |
| } |
| |
| void |
| _g_unix_volume_monitor_update (GUnixVolumeMonitor *unix_monitor) |
| { |
| /* Update both to make sure volumes are created before mounts */ |
| update_volumes (unix_monitor); |
| update_mounts (unix_monitor); |
| } |
| |
| static void |
| mountpoints_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data) |
| { |
| GUnixVolumeMonitor *unix_monitor = user_data; |
| |
| _g_unix_volume_monitor_update (unix_monitor); |
| } |
| |
| static void |
| mounts_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data) |
| { |
| GUnixVolumeMonitor *unix_monitor = user_data; |
| |
| _g_unix_volume_monitor_update (unix_monitor); |
| } |
| |
| static void |
| g_unix_volume_monitor_init (GUnixVolumeMonitor *unix_monitor) |
| { |
| |
| unix_monitor->mount_monitor = g_unix_mount_monitor_get (); |
| |
| g_signal_connect (unix_monitor->mount_monitor, |
| "mounts-changed", G_CALLBACK (mounts_changed), |
| unix_monitor); |
| |
| g_signal_connect (unix_monitor->mount_monitor, |
| "mountpoints-changed", G_CALLBACK (mountpoints_changed), |
| unix_monitor); |
| |
| _g_unix_volume_monitor_update (unix_monitor); |
| } |
| |
| GVolumeMonitor * |
| _g_unix_volume_monitor_new (void) |
| { |
| GUnixVolumeMonitor *monitor; |
| |
| monitor = g_object_new (G_TYPE_UNIX_VOLUME_MONITOR, NULL); |
| |
| return G_VOLUME_MONITOR (monitor); |
| } |
| |
| static void |
| diff_sorted_lists (GList *list1, |
| GList *list2, |
| GCompareFunc compare, |
| GList **added, |
| GList **removed) |
| { |
| int order; |
| |
| *added = *removed = NULL; |
| |
| while (list1 != NULL && |
| list2 != NULL) |
| { |
| order = (*compare) (list1->data, list2->data); |
| if (order < 0) |
| { |
| *removed = g_list_prepend (*removed, list1->data); |
| list1 = list1->next; |
| } |
| else if (order > 0) |
| { |
| *added = g_list_prepend (*added, list2->data); |
| list2 = list2->next; |
| } |
| else |
| { /* same item */ |
| list1 = list1->next; |
| list2 = list2->next; |
| } |
| } |
| |
| while (list1 != NULL) |
| { |
| *removed = g_list_prepend (*removed, list1->data); |
| list1 = list1->next; |
| } |
| while (list2 != NULL) |
| { |
| *added = g_list_prepend (*added, list2->data); |
| list2 = list2->next; |
| } |
| } |
| |
| GUnixVolume * |
| _g_unix_volume_monitor_lookup_volume_for_mount_path (GUnixVolumeMonitor *monitor, |
| const char *mount_path) |
| { |
| GList *l; |
| |
| for (l = monitor->volumes; l != NULL; l = l->next) |
| { |
| GUnixVolume *volume = l->data; |
| |
| if (_g_unix_volume_has_mount_path (volume, mount_path)) |
| return volume; |
| } |
| |
| return NULL; |
| } |
| |
| static GUnixMount * |
| find_mount_by_mountpath (GUnixVolumeMonitor *monitor, |
| const char *mount_path) |
| { |
| GList *l; |
| |
| for (l = monitor->mounts; l != NULL; l = l->next) |
| { |
| GUnixMount *mount = l->data; |
| |
| if (_g_unix_mount_has_mount_path (mount, mount_path)) |
| return mount; |
| } |
| |
| return NULL; |
| } |
| |
| static void |
| update_volumes (GUnixVolumeMonitor *monitor) |
| { |
| GList *new_mountpoints; |
| GList *removed, *added; |
| GList *l; |
| GUnixVolume *volume; |
| |
| new_mountpoints = g_unix_mount_points_get (NULL); |
| |
| new_mountpoints = g_list_sort (new_mountpoints, (GCompareFunc) g_unix_mount_point_compare); |
| |
| diff_sorted_lists (monitor->last_mountpoints, |
| new_mountpoints, (GCompareFunc) g_unix_mount_point_compare, |
| &added, &removed); |
| |
| for (l = removed; l != NULL; l = l->next) |
| { |
| GUnixMountPoint *mountpoint = l->data; |
| |
| volume = _g_unix_volume_monitor_lookup_volume_for_mount_path (monitor, |
| g_unix_mount_point_get_mount_path (mountpoint)); |
| if (volume) |
| { |
| _g_unix_volume_disconnected (volume); |
| monitor->volumes = g_list_remove (monitor->volumes, volume); |
| g_signal_emit_by_name (monitor, "volume-removed", volume); |
| g_signal_emit_by_name (volume, "removed"); |
| g_object_unref (volume); |
| } |
| } |
| |
| for (l = added; l != NULL; l = l->next) |
| { |
| GUnixMountPoint *mountpoint = l->data; |
| |
| volume = _g_unix_volume_new (G_VOLUME_MONITOR (monitor), mountpoint); |
| if (volume) |
| { |
| monitor->volumes = g_list_prepend (monitor->volumes, volume); |
| g_signal_emit_by_name (monitor, "volume-added", volume); |
| } |
| } |
| |
| g_list_free (added); |
| g_list_free (removed); |
| g_list_free_full (monitor->last_mountpoints, (GDestroyNotify) g_unix_mount_point_free); |
| monitor->last_mountpoints = new_mountpoints; |
| } |
| |
| static void |
| update_mounts (GUnixVolumeMonitor *monitor) |
| { |
| GList *new_mounts; |
| GList *removed, *added; |
| GList *l; |
| GUnixMount *mount; |
| GUnixVolume *volume; |
| const char *mount_path; |
| |
| new_mounts = g_unix_mounts_get (NULL); |
| |
| new_mounts = g_list_sort (new_mounts, (GCompareFunc) g_unix_mount_compare); |
| |
| diff_sorted_lists (monitor->last_mounts, |
| new_mounts, (GCompareFunc) g_unix_mount_compare, |
| &added, &removed); |
| |
| for (l = removed; l != NULL; l = l->next) |
| { |
| GUnixMountEntry *mount_entry = l->data; |
| |
| mount = find_mount_by_mountpath (monitor, g_unix_mount_get_mount_path (mount_entry)); |
| if (mount) |
| { |
| _g_unix_mount_unmounted (mount); |
| monitor->mounts = g_list_remove (monitor->mounts, mount); |
| g_signal_emit_by_name (monitor, "mount-removed", mount); |
| g_signal_emit_by_name (mount, "unmounted"); |
| g_object_unref (mount); |
| } |
| } |
| |
| for (l = added; l != NULL; l = l->next) |
| { |
| GUnixMountEntry *mount_entry = l->data; |
| |
| mount_path = g_unix_mount_get_mount_path (mount_entry); |
| |
| volume = _g_unix_volume_monitor_lookup_volume_for_mount_path (monitor, mount_path); |
| mount = _g_unix_mount_new (G_VOLUME_MONITOR (monitor), mount_entry, volume); |
| if (mount) |
| { |
| monitor->mounts = g_list_prepend (monitor->mounts, mount); |
| g_signal_emit_by_name (monitor, "mount-added", mount); |
| } |
| } |
| |
| g_list_free (added); |
| g_list_free (removed); |
| g_list_free_full (monitor->last_mounts, (GDestroyNotify) g_unix_mount_free); |
| monitor->last_mounts = new_mounts; |
| } |