| /* 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> |
| */ |
| |
| #include "config.h" |
| |
| #include "glocaldirectorymonitor.h" |
| #include "gunixmounts.h" |
| #include "giomodule-priv.h" |
| #include "gfile.h" |
| #include "gioerror.h" |
| #include "glibintl.h" |
| |
| #include <string.h> |
| |
| #include "gioalias.h" |
| |
| enum |
| { |
| PROP_0, |
| PROP_DIRNAME, |
| PROP_FLAGS |
| }; |
| |
| static gboolean g_local_directory_monitor_cancel (GFileMonitor *monitor); |
| static void mounts_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data); |
| |
| G_DEFINE_ABSTRACT_TYPE (GLocalDirectoryMonitor, g_local_directory_monitor, G_TYPE_FILE_MONITOR) |
| |
| static void |
| g_local_directory_monitor_finalize (GObject *object) |
| { |
| GLocalDirectoryMonitor *local_monitor; |
| local_monitor = G_LOCAL_DIRECTORY_MONITOR (object); |
| |
| g_free (local_monitor->dirname); |
| |
| if (local_monitor->mount_monitor) |
| { |
| g_signal_handlers_disconnect_by_func (local_monitor->mount_monitor, mounts_changed, local_monitor); |
| g_object_unref (local_monitor->mount_monitor); |
| local_monitor->mount_monitor = NULL; |
| } |
| |
| G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize (object); |
| } |
| |
| static void |
| g_local_directory_monitor_set_property (GObject *object, |
| guint property_id, |
| const GValue *value, |
| GParamSpec *pspec) |
| { |
| switch (property_id) |
| { |
| case PROP_DIRNAME: |
| /* Do nothing */ |
| break; |
| case PROP_FLAGS: |
| /* Do nothing */ |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); |
| break; |
| } |
| } |
| |
| static GObject * |
| g_local_directory_monitor_constructor (GType type, |
| guint n_construct_properties, |
| GObjectConstructParam *construct_properties) |
| { |
| GObject *obj; |
| GLocalDirectoryMonitorClass *klass; |
| GObjectClass *parent_class; |
| GLocalDirectoryMonitor *local_monitor; |
| GFileMonitorFlags flags = 0; |
| const gchar *dirname = NULL; |
| gint i; |
| |
| klass = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_peek (G_TYPE_LOCAL_DIRECTORY_MONITOR)); |
| parent_class = G_OBJECT_CLASS (g_type_class_peek_parent (klass)); |
| obj = parent_class->constructor (type, |
| n_construct_properties, |
| construct_properties); |
| |
| local_monitor = G_LOCAL_DIRECTORY_MONITOR (obj); |
| |
| for (i = 0; i < n_construct_properties; i++) |
| { |
| if (strcmp ("dirname", g_param_spec_get_name (construct_properties[i].pspec)) == 0) |
| { |
| g_warn_if_fail (G_VALUE_HOLDS_STRING (construct_properties[i].value)); |
| dirname = g_value_get_string (construct_properties[i].value); |
| } |
| if (strcmp ("flags", g_param_spec_get_name (construct_properties[i].pspec)) == 0) |
| { |
| g_warn_if_fail (G_VALUE_HOLDS_FLAGS (construct_properties[i].value)); |
| flags = g_value_get_flags (construct_properties[i].value); |
| } |
| } |
| |
| local_monitor->dirname = g_strdup (dirname); |
| local_monitor->flags = flags; |
| |
| if (!klass->mount_notify && |
| (flags & G_FILE_MONITOR_WATCH_MOUNTS)) |
| { |
| #ifdef G_OS_WIN32 |
| /*claim everything was mounted */ |
| local_monitor->was_mounted = TRUE; |
| #else |
| GUnixMountEntry *mount; |
| |
| /* Emulate unmount detection */ |
| |
| mount = g_unix_mount_at (local_monitor->dirname, NULL); |
| |
| local_monitor->was_mounted = mount != NULL; |
| |
| if (mount) |
| g_unix_mount_free (mount); |
| |
| local_monitor->mount_monitor = g_unix_mount_monitor_new (); |
| g_signal_connect_object (local_monitor->mount_monitor, "mounts-changed", |
| G_CALLBACK (mounts_changed), local_monitor, 0); |
| #endif |
| } |
| |
| return obj; |
| } |
| |
| static void |
| g_local_directory_monitor_class_init (GLocalDirectoryMonitorClass* klass) |
| { |
| GObjectClass* gobject_class = G_OBJECT_CLASS (klass); |
| GFileMonitorClass *file_monitor_class = G_FILE_MONITOR_CLASS (klass); |
| |
| gobject_class->finalize = g_local_directory_monitor_finalize; |
| gobject_class->set_property = g_local_directory_monitor_set_property; |
| gobject_class->constructor = g_local_directory_monitor_constructor; |
| |
| file_monitor_class->cancel = g_local_directory_monitor_cancel; |
| |
| g_object_class_install_property (gobject_class, |
| PROP_DIRNAME, |
| g_param_spec_string ("dirname", |
| P_("Directory name"), |
| P_("Directory to monitor"), |
| NULL, |
| G_PARAM_CONSTRUCT_ONLY| |
| G_PARAM_WRITABLE| |
| G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB)); |
| g_object_class_install_property (gobject_class, |
| PROP_FLAGS, |
| g_param_spec_flags ("flags", |
| P_("Monitor flags"), |
| P_("Monitor flags"), |
| G_TYPE_FILE_MONITOR_FLAGS, |
| 0, |
| G_PARAM_CONSTRUCT_ONLY| |
| G_PARAM_WRITABLE| |
| G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB)); |
| |
| klass->mount_notify = FALSE; |
| } |
| |
| static void |
| g_local_directory_monitor_init (GLocalDirectoryMonitor *local_monitor) |
| { |
| } |
| |
| static void |
| mounts_changed (GUnixMountMonitor *mount_monitor, |
| gpointer user_data) |
| { |
| GLocalDirectoryMonitor *local_monitor = user_data; |
| GUnixMountEntry *mount; |
| gboolean is_mounted; |
| GFile *file; |
| |
| /* Emulate unmount detection */ |
| #ifdef G_OS_WIN32 |
| mount = NULL; |
| /*claim everything was mounted */ |
| is_mounted = TRUE; |
| #else |
| mount = g_unix_mount_at (local_monitor->dirname, NULL); |
| |
| is_mounted = mount != NULL; |
| |
| if (mount) |
| g_unix_mount_free (mount); |
| #endif |
| |
| if (local_monitor->was_mounted != is_mounted) |
| { |
| if (local_monitor->was_mounted && !is_mounted) |
| { |
| file = g_file_new_for_path (local_monitor->dirname); |
| g_file_monitor_emit_event (G_FILE_MONITOR (local_monitor), |
| file, NULL, |
| G_FILE_MONITOR_EVENT_UNMOUNTED); |
| g_object_unref (file); |
| } |
| local_monitor->was_mounted = is_mounted; |
| } |
| } |
| |
| static gpointer |
| get_default_local_directory_monitor (gpointer data) |
| { |
| GLocalDirectoryMonitorClass *chosen_class; |
| GLocalDirectoryMonitorClass **ret = data; |
| GIOExtensionPoint *ep; |
| GList *extensions, *l; |
| |
| _g_io_modules_ensure_loaded (); |
| |
| ep = g_io_extension_point_lookup (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME); |
| |
| extensions = g_io_extension_point_get_extensions (ep); |
| |
| chosen_class = NULL; |
| for (l = extensions; l != NULL; l = l->next) |
| { |
| GIOExtension *extension = l->data; |
| GLocalDirectoryMonitorClass *klass; |
| |
| klass = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_io_extension_ref_class (extension)); |
| |
| if (klass->is_supported ()) |
| { |
| chosen_class = klass; |
| break; |
| } |
| else |
| g_type_class_unref (klass); |
| } |
| |
| if (chosen_class) |
| { |
| *ret = chosen_class; |
| return (gpointer)G_TYPE_FROM_CLASS (chosen_class); |
| } |
| else |
| return (gpointer)G_TYPE_INVALID; |
| } |
| |
| GFileMonitor* |
| _g_local_directory_monitor_new (const char *dirname, |
| GFileMonitorFlags flags, |
| GError **error) |
| { |
| static GOnce once_init = G_ONCE_INIT; |
| GTypeClass *type_class; |
| GFileMonitor *monitor; |
| GType type; |
| |
| type_class = NULL; |
| g_once (&once_init, get_default_local_directory_monitor, &type_class); |
| type = (GType)once_init.retval; |
| |
| monitor = NULL; |
| if (type != G_TYPE_INVALID) |
| monitor = G_FILE_MONITOR (g_object_new (type, "dirname", dirname, "flags", flags, NULL)); |
| else |
| g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, |
| _("Unable to find default local directory monitor type")); |
| |
| /* This is non-null on first pass here. Unref the class now. |
| * This is to avoid unloading the module and then loading it |
| * again which would happen if we unrefed the class |
| * before creating the monitor. |
| */ |
| |
| if (type_class) |
| g_type_class_unref (type_class); |
| |
| return monitor; |
| } |
| |
| static gboolean |
| g_local_directory_monitor_cancel (GFileMonitor *monitor) |
| { |
| GLocalDirectoryMonitor *local_monitor = G_LOCAL_DIRECTORY_MONITOR (monitor); |
| |
| if (local_monitor->mount_monitor) |
| { |
| g_signal_handlers_disconnect_by_func (local_monitor->mount_monitor, mounts_changed, local_monitor); |
| g_object_unref (local_monitor->mount_monitor); |
| local_monitor->mount_monitor = NULL; |
| } |
| |
| return TRUE; |
| } |
| |
| #define __G_LOCAL_DIRECTORY_MONITOR_C__ |
| #include "gioaliasdef.c" |
