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glib/gio/gunixmount.c

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/* -*- 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, see <http://www.gnu.org/licenses/>.
*
* 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 "gsubprocess.h"
#include "gioenums.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>
struct _GUnixMount {
GObject parent;
GVolumeMonitor *volume_monitor;
GUnixVolume *volume; /* owned by volume monitor */
char *name;
GIcon *icon;
GIcon *symbolic_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_object_unref (mount->symbolic_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);
mount->symbolic_icon = g_unix_mount_guess_symbolic_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 GIcon *
g_unix_mount_get_symbolic_icon (GMount *mount)
{
GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
return g_object_ref (unix_mount->symbolic_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;
}
static void
eject_unmount_done (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
GSubprocess *subprocess = G_SUBPROCESS (source);
GTask *task = user_data;
GError *error = NULL;
gchar *stderr_str;
if (!g_subprocess_communicate_utf8_finish (subprocess, result, NULL, &stderr_str, &error))
{
g_task_return_error (task, error);
g_error_free (error);
}
else /* successful communication */
{
if (!g_subprocess_get_successful (subprocess))
/* ...but bad exit code */
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_FAILED, "%s", stderr_str);
else
/* ...and successful exit code */
g_task_return_boolean (task, TRUE);
g_free (stderr_str);
}
g_object_unref (task);
}
static gboolean
eject_unmount_do_cb (gpointer user_data)
{
GTask *task = user_data;
GError *error = NULL;
GSubprocess *subprocess;
const gchar **argv;
argv = g_task_get_task_data (task);
if (g_task_return_error_if_cancelled (task))
{
g_object_unref (task);
return G_SOURCE_REMOVE;
}
subprocess = g_subprocess_newv (argv, G_SUBPROCESS_FLAGS_STDOUT_SILENCE | G_SUBPROCESS_FLAGS_STDERR_PIPE, &error);
g_assert_no_error (error);
g_subprocess_communicate_utf8_async (subprocess, NULL,
g_task_get_cancellable (task),
eject_unmount_done, task);
return G_SOURCE_REMOVE;
}
static void
eject_unmount_do (GMount *mount,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data,
char **argv)
{
GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
GTask *task;
GSource *timeout;
task = g_task_new (mount, cancellable, callback, user_data);
g_task_set_task_data (task, g_strdupv (argv), (GDestroyNotify) g_strfreev);
if (unix_mount->volume_monitor != NULL)
g_signal_emit_by_name (unix_mount->volume_monitor, "mount-pre-unmount", mount);
g_signal_emit_by_name (mount, "pre-unmount", 0);
timeout = g_timeout_source_new (500);
g_task_attach_source (task, timeout, (GSourceFunc) eject_unmount_do_cb);
g_source_unref (timeout);
}
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 g_task_propagate_boolean (G_TASK (result), error);
}
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 g_task_propagate_boolean (G_TASK (result), error);
}
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_symbolic_icon = g_unix_mount_get_symbolic_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;
}
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