Import Upstream version 2.72.4
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439
gio/gunixvolume.c
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439
gio/gunixvolume.c
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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* David Zeuthen <davidz@redhat.com>
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*/
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#include "config.h"
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#include <string.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <glib.h>
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#include "gunixvolume.h"
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#include "gunixmount.h"
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#include "gunixmounts.h"
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#include "gthemedicon.h"
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#include "gvolume.h"
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#include "gvolumemonitor.h"
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#include "gtask.h"
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#include "gioerror.h"
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#include "glibintl.h"
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/* for BUFSIZ */
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#include <stdio.h>
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struct _GUnixVolume {
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GObject parent;
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GVolumeMonitor *volume_monitor;
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GUnixMount *mount; /* owned by volume monitor */
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char *device_path;
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char *mount_path;
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gboolean can_eject;
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char *identifier;
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char *identifier_type;
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char *name;
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GIcon *icon;
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GIcon *symbolic_icon;
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};
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static void g_unix_volume_volume_iface_init (GVolumeIface *iface);
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#define g_unix_volume_get_type _g_unix_volume_get_type
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G_DEFINE_TYPE_WITH_CODE (GUnixVolume, g_unix_volume, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_VOLUME,
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g_unix_volume_volume_iface_init))
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static void
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g_unix_volume_finalize (GObject *object)
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{
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GUnixVolume *volume;
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volume = G_UNIX_VOLUME (object);
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if (volume->volume_monitor != NULL)
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g_object_unref (volume->volume_monitor);
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if (volume->mount)
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_g_unix_mount_unset_volume (volume->mount, volume);
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g_object_unref (volume->icon);
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g_object_unref (volume->symbolic_icon);
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g_free (volume->name);
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g_free (volume->mount_path);
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g_free (volume->device_path);
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g_free (volume->identifier);
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g_free (volume->identifier_type);
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G_OBJECT_CLASS (g_unix_volume_parent_class)->finalize (object);
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}
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static void
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g_unix_volume_class_init (GUnixVolumeClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = g_unix_volume_finalize;
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}
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static void
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g_unix_volume_init (GUnixVolume *unix_volume)
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{
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}
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GUnixVolume *
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_g_unix_volume_new (GVolumeMonitor *volume_monitor,
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GUnixMountPoint *mountpoint)
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{
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GUnixVolume *volume;
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if (!(g_unix_mount_point_is_user_mountable (mountpoint) ||
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g_str_has_prefix (g_unix_mount_point_get_device_path (mountpoint), "/vol/")) ||
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g_unix_mount_point_is_loopback (mountpoint))
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return NULL;
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volume = g_object_new (G_TYPE_UNIX_VOLUME, NULL);
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volume->volume_monitor = volume_monitor != NULL ? g_object_ref (volume_monitor) : NULL;
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volume->mount_path = g_strdup (g_unix_mount_point_get_mount_path (mountpoint));
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volume->device_path = g_strdup (g_unix_mount_point_get_device_path (mountpoint));
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volume->can_eject = g_unix_mount_point_guess_can_eject (mountpoint);
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volume->name = g_unix_mount_point_guess_name (mountpoint);
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volume->icon = g_unix_mount_point_guess_icon (mountpoint);
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volume->symbolic_icon = g_unix_mount_point_guess_symbolic_icon (mountpoint);
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if (strcmp (g_unix_mount_point_get_fs_type (mountpoint), "nfs") == 0)
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{
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volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_NFS_MOUNT);
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volume->identifier = g_strdup (volume->device_path);
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}
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else if (g_str_has_prefix (volume->device_path, "LABEL="))
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{
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volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_LABEL);
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volume->identifier = g_strdup (volume->device_path + 6);
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}
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else if (g_str_has_prefix (volume->device_path, "UUID="))
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{
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volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UUID);
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volume->identifier = g_strdup (volume->device_path + 5);
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}
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else if (g_path_is_absolute (volume->device_path))
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{
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volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE);
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volume->identifier = g_strdup (volume->device_path);
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}
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return volume;
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}
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void
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_g_unix_volume_disconnected (GUnixVolume *volume)
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{
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if (volume->mount)
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{
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_g_unix_mount_unset_volume (volume->mount, volume);
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volume->mount = NULL;
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}
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}
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void
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_g_unix_volume_set_mount (GUnixVolume *volume,
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GUnixMount *mount)
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{
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if (volume->mount == mount)
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return;
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if (volume->mount)
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_g_unix_mount_unset_volume (volume->mount, volume);
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volume->mount = mount;
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/* TODO: Emit changed in idle to avoid locking issues */
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g_signal_emit_by_name (volume, "changed");
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if (volume->volume_monitor != NULL)
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g_signal_emit_by_name (volume->volume_monitor, "volume-changed", volume);
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}
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void
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_g_unix_volume_unset_mount (GUnixVolume *volume,
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GUnixMount *mount)
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{
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if (volume->mount == mount)
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{
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volume->mount = NULL;
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/* TODO: Emit changed in idle to avoid locking issues */
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g_signal_emit_by_name (volume, "changed");
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if (volume->volume_monitor != NULL)
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g_signal_emit_by_name (volume->volume_monitor, "volume-changed", volume);
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}
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}
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static GIcon *
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g_unix_volume_get_icon (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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return g_object_ref (unix_volume->icon);
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}
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static GIcon *
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g_unix_volume_get_symbolic_icon (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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return g_object_ref (unix_volume->symbolic_icon);
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}
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static char *
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g_unix_volume_get_name (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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return g_strdup (unix_volume->name);
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}
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static char *
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g_unix_volume_get_uuid (GVolume *volume)
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{
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return NULL;
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}
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static gboolean
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g_unix_volume_can_mount (GVolume *volume)
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{
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return TRUE;
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}
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static gboolean
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g_unix_volume_can_eject (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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return unix_volume->can_eject;
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}
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static gboolean
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g_unix_volume_should_automount (GVolume *volume)
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{
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/* We automount all local volumes because we don't even
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* make the internal stuff visible
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*/
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return TRUE;
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}
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static GDrive *
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g_unix_volume_get_drive (GVolume *volume)
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{
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return NULL;
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}
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static GMount *
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g_unix_volume_get_mount (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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if (unix_volume->mount != NULL)
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return g_object_ref (G_MOUNT (unix_volume->mount));
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return NULL;
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}
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gboolean
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_g_unix_volume_has_mount_path (GUnixVolume *volume,
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const char *mount_path)
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{
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return strcmp (volume->mount_path, mount_path) == 0;
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}
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static void
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eject_mount_done (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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GSubprocess *subprocess = G_SUBPROCESS (source);
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GTask *task = user_data;
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GError *error = NULL;
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gchar *stderr_str;
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GUnixVolume *unix_volume;
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if (!g_subprocess_communicate_utf8_finish (subprocess, result, NULL, &stderr_str, &error))
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{
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g_task_return_error (task, error);
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g_error_free (error);
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}
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else /* successful communication */
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{
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if (!g_subprocess_get_successful (subprocess))
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/* ...but bad exit code */
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g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_FAILED, "%s", stderr_str);
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else
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{
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/* ...and successful exit code */
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unix_volume = G_UNIX_VOLUME (g_task_get_source_object (task));
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_g_unix_volume_monitor_update (G_UNIX_VOLUME_MONITOR (unix_volume->volume_monitor));
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g_task_return_boolean (task, TRUE);
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}
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g_free (stderr_str);
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}
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g_object_unref (task);
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}
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static void
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eject_mount_do (GVolume *volume,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data,
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const gchar * const *argv,
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const gchar *task_name)
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{
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GSubprocess *subprocess;
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GError *error = NULL;
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GTask *task;
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task = g_task_new (volume, cancellable, callback, user_data);
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g_task_set_source_tag (task, eject_mount_do);
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g_task_set_name (task, task_name);
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if (g_task_return_error_if_cancelled (task))
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{
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g_object_unref (task);
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return;
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}
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subprocess = g_subprocess_newv (argv, G_SUBPROCESS_FLAGS_STDOUT_SILENCE | G_SUBPROCESS_FLAGS_STDERR_PIPE, &error);
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g_assert_no_error (error);
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g_subprocess_communicate_utf8_async (subprocess, NULL,
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g_task_get_cancellable (task),
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eject_mount_done, task);
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}
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static void
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g_unix_volume_mount (GVolume *volume,
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GMountMountFlags flags,
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GMountOperation *mount_operation,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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const gchar *argv[] = { "mount", NULL, NULL };
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if (unix_volume->mount_path != NULL)
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argv[1] = unix_volume->mount_path;
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else
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argv[1] = unix_volume->device_path;
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eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] mount volume");
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}
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static gboolean
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g_unix_volume_mount_finish (GVolume *volume,
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GAsyncResult *result,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
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return g_task_propagate_boolean (G_TASK (result), error);
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}
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static void
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g_unix_volume_eject (GVolume *volume,
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GMountUnmountFlags flags,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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const gchar *argv[] = { "eject", NULL, NULL };
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argv[1] = unix_volume->device_path;
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eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] eject volume");
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}
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static gboolean
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g_unix_volume_eject_finish (GVolume *volume,
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GAsyncResult *result,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
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return g_task_propagate_boolean (G_TASK (result), error);
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}
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static gchar *
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g_unix_volume_get_identifier (GVolume *volume,
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const gchar *kind)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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if (unix_volume->identifier_type != NULL &&
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strcmp (kind, unix_volume->identifier_type) == 0)
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return g_strdup (unix_volume->identifier);
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return NULL;
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}
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static gchar **
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g_unix_volume_enumerate_identifiers (GVolume *volume)
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{
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GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
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gchar **res;
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if (unix_volume->identifier_type)
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{
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res = g_new (gchar *, 2);
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res[0] = g_strdup (unix_volume->identifier_type);
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res[1] = NULL;
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}
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else
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{
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res = g_new (gchar *, 1);
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res[0] = NULL;
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}
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return res;
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}
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static void
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g_unix_volume_volume_iface_init (GVolumeIface *iface)
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{
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iface->get_name = g_unix_volume_get_name;
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iface->get_icon = g_unix_volume_get_icon;
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iface->get_symbolic_icon = g_unix_volume_get_symbolic_icon;
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iface->get_uuid = g_unix_volume_get_uuid;
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iface->get_drive = g_unix_volume_get_drive;
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iface->get_mount = g_unix_volume_get_mount;
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iface->can_mount = g_unix_volume_can_mount;
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iface->can_eject = g_unix_volume_can_eject;
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iface->should_automount = g_unix_volume_should_automount;
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iface->mount_fn = g_unix_volume_mount;
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iface->mount_finish = g_unix_volume_mount_finish;
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iface->eject = g_unix_volume_eject;
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iface->eject_finish = g_unix_volume_eject_finish;
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iface->get_identifier = g_unix_volume_get_identifier;
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iface->enumerate_identifiers = g_unix_volume_enumerate_identifiers;
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}
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