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487 lines
13 KiB
C
487 lines
13 KiB
C
/* -*- 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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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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 "gunixvolumemonitor.h"
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#include "gunixmount.h"
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#include "gunixmounts.h"
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#include "gunixvolume.h"
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#include "gmountprivate.h"
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#include "gmount.h"
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#include "gfile.h"
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#include "gvolumemonitor.h"
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#include "gthemedicon.h"
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#include "gsimpleasyncresult.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 _GUnixMount {
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GObject parent;
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GVolumeMonitor *volume_monitor;
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GUnixVolume *volume; /* owned by volume monitor */
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char *name;
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GIcon *icon;
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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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};
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static void g_unix_mount_mount_iface_init (GMountIface *iface);
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#define g_unix_mount_get_type _g_unix_mount_get_type
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G_DEFINE_TYPE_WITH_CODE (GUnixMount, g_unix_mount, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_MOUNT,
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g_unix_mount_mount_iface_init))
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static void
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g_unix_mount_finalize (GObject *object)
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{
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GUnixMount *mount;
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mount = G_UNIX_MOUNT (object);
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if (mount->volume_monitor != NULL)
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g_object_unref (mount->volume_monitor);
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if (mount->volume)
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_g_unix_volume_unset_mount (mount->volume, mount);
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/* TODO: g_warn_if_fail (volume->volume == NULL); */
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g_object_unref (mount->icon);
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g_free (mount->name);
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g_free (mount->device_path);
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g_free (mount->mount_path);
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G_OBJECT_CLASS (g_unix_mount_parent_class)->finalize (object);
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}
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static void
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g_unix_mount_class_init (GUnixMountClass *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_mount_finalize;
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}
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static void
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g_unix_mount_init (GUnixMount *unix_mount)
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{
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}
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GUnixMount *
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_g_unix_mount_new (GVolumeMonitor *volume_monitor,
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GUnixMountEntry *mount_entry,
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GUnixVolume *volume)
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{
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GUnixMount *mount;
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/* No volume for mount: Ignore internal things */
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if (volume == NULL && !g_unix_mount_guess_should_display (mount_entry))
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return NULL;
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mount = g_object_new (G_TYPE_UNIX_MOUNT, NULL);
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mount->volume_monitor = volume_monitor != NULL ? g_object_ref (volume_monitor) : NULL;
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mount->device_path = g_strdup (g_unix_mount_get_device_path (mount_entry));
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mount->mount_path = g_strdup (g_unix_mount_get_mount_path (mount_entry));
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mount->can_eject = g_unix_mount_guess_can_eject (mount_entry);
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mount->name = g_unix_mount_guess_name (mount_entry);
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mount->icon = g_unix_mount_guess_icon (mount_entry);
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/* need to do this last */
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mount->volume = volume;
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if (volume != NULL)
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_g_unix_volume_set_mount (volume, mount);
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return mount;
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}
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void
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_g_unix_mount_unmounted (GUnixMount *mount)
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{
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if (mount->volume != NULL)
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{
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_g_unix_volume_unset_mount (mount->volume, mount);
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mount->volume = NULL;
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g_signal_emit_by_name (mount, "changed");
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/* there's really no need to emit mount_changed on the volume monitor
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* as we're going to be deleted.. */
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}
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}
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void
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_g_unix_mount_unset_volume (GUnixMount *mount,
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GUnixVolume *volume)
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{
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if (mount->volume == volume)
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{
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mount->volume = NULL;
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/* TODO: Emit changed in idle to avoid locking issues */
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g_signal_emit_by_name (mount, "changed");
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if (mount->volume_monitor != NULL)
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g_signal_emit_by_name (mount->volume_monitor, "mount-changed", mount);
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}
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}
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static GFile *
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g_unix_mount_get_root (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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return g_file_new_for_path (unix_mount->mount_path);
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}
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static GIcon *
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g_unix_mount_get_icon (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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return g_object_ref (unix_mount->icon);
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}
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static char *
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g_unix_mount_get_uuid (GMount *mount)
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{
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return NULL;
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}
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static char *
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g_unix_mount_get_name (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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return g_strdup (unix_mount->name);
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}
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gboolean
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_g_unix_mount_has_mount_path (GUnixMount *mount,
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const char *mount_path)
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{
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return strcmp (mount->mount_path, mount_path) == 0;
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}
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static GDrive *
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g_unix_mount_get_drive (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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if (unix_mount->volume != NULL)
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return g_volume_get_drive (G_VOLUME (unix_mount->volume));
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return NULL;
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}
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static GVolume *
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g_unix_mount_get_volume (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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if (unix_mount->volume)
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return G_VOLUME (g_object_ref (unix_mount->volume));
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return NULL;
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}
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static gboolean
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g_unix_mount_can_unmount (GMount *mount)
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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_mount_can_eject (GMount *mount)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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return unix_mount->can_eject;
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}
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typedef struct {
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GUnixMount *unix_mount;
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GAsyncReadyCallback callback;
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gpointer user_data;
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GCancellable *cancellable;
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int error_fd;
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GIOChannel *error_channel;
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GSource *error_channel_source;
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GString *error_string;
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gchar **argv;
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} UnmountEjectOp;
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static void
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eject_unmount_cb (GPid pid, gint status, gpointer user_data)
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{
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UnmountEjectOp *data = user_data;
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GSimpleAsyncResult *simple;
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if (WEXITSTATUS (status) != 0)
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{
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GError *error;
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error = g_error_new_literal (G_IO_ERROR,
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G_IO_ERROR_FAILED,
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data->error_string->str);
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simple = g_simple_async_result_new_from_error (G_OBJECT (data->unix_mount),
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data->callback,
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data->user_data,
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error);
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g_error_free (error);
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}
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else
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{
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simple = g_simple_async_result_new (G_OBJECT (data->unix_mount),
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data->callback,
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data->user_data,
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NULL);
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}
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g_simple_async_result_complete (simple);
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g_object_unref (simple);
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if (data->error_channel_source)
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{
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g_source_destroy (data->error_channel_source);
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g_source_unref (data->error_channel_source);
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}
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g_io_channel_unref (data->error_channel);
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g_string_free (data->error_string, TRUE);
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g_strfreev (data->argv);
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close (data->error_fd);
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g_spawn_close_pid (pid);
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g_free (data);
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}
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static gboolean
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eject_unmount_read_error (GIOChannel *channel,
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GIOCondition condition,
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gpointer user_data)
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{
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UnmountEjectOp *data = user_data;
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char buf[BUFSIZ];
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gsize bytes_read;
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GError *error;
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GIOStatus status;
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error = NULL;
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read:
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status = g_io_channel_read_chars (channel, buf, sizeof (buf), &bytes_read, &error);
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if (status == G_IO_STATUS_NORMAL)
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{
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g_string_append_len (data->error_string, buf, bytes_read);
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if (bytes_read == sizeof (buf))
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goto read;
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}
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else if (status == G_IO_STATUS_EOF)
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g_string_append_len (data->error_string, buf, bytes_read);
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else if (status == G_IO_STATUS_ERROR)
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{
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if (data->error_string->len > 0)
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g_string_append (data->error_string, "\n");
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g_string_append (data->error_string, error->message);
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g_error_free (error);
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if (data->error_channel_source)
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{
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g_source_unref (data->error_channel_source);
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data->error_channel_source = NULL;
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}
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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eject_unmount_do_cb (gpointer user_data)
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{
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UnmountEjectOp *data = (UnmountEjectOp *) user_data;
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GPid child_pid;
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GSource *child_watch;
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GError *error = NULL;
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if (!g_spawn_async_with_pipes (NULL, /* working dir */
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data->argv,
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NULL, /* envp */
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G_SPAWN_DO_NOT_REAP_CHILD|G_SPAWN_SEARCH_PATH,
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NULL, /* child_setup */
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NULL, /* user_data for child_setup */
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&child_pid,
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NULL, /* standard_input */
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NULL, /* standard_output */
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&(data->error_fd),
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&error)) {
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g_assert (error != NULL);
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goto handle_error;
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}
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data->error_string = g_string_new ("");
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data->error_channel = g_io_channel_unix_new (data->error_fd);
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g_io_channel_set_flags (data->error_channel, G_IO_FLAG_NONBLOCK, &error);
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if (error != NULL)
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goto handle_error;
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data->error_channel_source = g_io_create_watch (data->error_channel, G_IO_IN);
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g_source_set_callback (data->error_channel_source,
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(GSourceFunc) eject_unmount_read_error, data, NULL);
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g_source_attach (data->error_channel_source, g_main_context_get_thread_default ());
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child_watch = g_child_watch_source_new (child_pid);
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g_source_set_callback (child_watch, (GSourceFunc) eject_unmount_cb, data, NULL);
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g_source_attach (child_watch, g_main_context_get_thread_default ());
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g_source_unref (child_watch);
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handle_error:
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if (error != NULL) {
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GSimpleAsyncResult *simple;
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simple = g_simple_async_result_new_from_error (G_OBJECT (data->unix_mount),
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data->callback,
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data->user_data,
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error);
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g_simple_async_result_complete (simple);
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g_object_unref (simple);
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if (data->error_string != NULL)
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g_string_free (data->error_string, TRUE);
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if (data->error_channel != NULL)
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g_io_channel_unref (data->error_channel);
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g_strfreev (data->argv);
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g_error_free (error);
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g_free (data);
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}
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return FALSE;
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}
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static void
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eject_unmount_do (GMount *mount,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data,
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char **argv)
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{
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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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UnmountEjectOp *data;
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data = g_new0 (UnmountEjectOp, 1);
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data->unix_mount = unix_mount;
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data->callback = callback;
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data->user_data = user_data;
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data->cancellable = cancellable;
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data->argv = g_strdupv (argv);
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if (unix_mount->volume_monitor != NULL)
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g_signal_emit_by_name (unix_mount->volume_monitor, "mount-pre-unmount", mount);
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g_signal_emit_by_name (mount, "pre-unmount", 0);
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g_timeout_add (500, (GSourceFunc) eject_unmount_do_cb, data);
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}
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static void
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g_unix_mount_unmount (GMount *mount,
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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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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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char *argv[] = {"umount", NULL, NULL};
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if (unix_mount->mount_path != NULL)
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argv[1] = unix_mount->mount_path;
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else
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argv[1] = unix_mount->device_path;
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eject_unmount_do (mount, cancellable, callback, user_data, argv);
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}
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static gboolean
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g_unix_mount_unmount_finish (GMount *mount,
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GAsyncResult *result,
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GError **error)
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{
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return TRUE;
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}
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static void
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g_unix_mount_eject (GMount *mount,
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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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GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
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char *argv[] = {"eject", NULL, NULL};
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if (unix_mount->mount_path != NULL)
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argv[1] = unix_mount->mount_path;
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else
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argv[1] = unix_mount->device_path;
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eject_unmount_do (mount, cancellable, callback, user_data, argv);
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}
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static gboolean
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g_unix_mount_eject_finish (GMount *mount,
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GAsyncResult *result,
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GError **error)
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{
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return TRUE;
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}
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static void
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g_unix_mount_mount_iface_init (GMountIface *iface)
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{
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iface->get_root = g_unix_mount_get_root;
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iface->get_name = g_unix_mount_get_name;
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iface->get_icon = g_unix_mount_get_icon;
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iface->get_uuid = g_unix_mount_get_uuid;
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iface->get_drive = g_unix_mount_get_drive;
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iface->get_volume = g_unix_mount_get_volume;
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iface->can_unmount = g_unix_mount_can_unmount;
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iface->can_eject = g_unix_mount_can_eject;
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iface->unmount = g_unix_mount_unmount;
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iface->unmount_finish = g_unix_mount_unmount_finish;
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iface->eject = g_unix_mount_eject;
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iface->eject_finish = g_unix_mount_eject_finish;
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}
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