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