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bff9ecedbb
2008-01-28 Alexander Larsson <alexl@redhat.com>
* giomodule.[ch]:
* gio.symbols:
Add registration hooks for extension points.
Register the gio extension points.
* fam/gfamdirectorymonitor.c:
* fam/gfamfilemonitor.c:
* glocaldirectorymonitor.[ch]:
* glocalfilemonitor.[ch]:
* gnativevolumemonitor.h:
* gunionvolumemonitor.c:
* gunixvolumemonitor.c:
* gvfs.[ch]:
* gvolumemonitor.h:
* inotify/ginotifydirectorymonitor.c:
* inotify/ginotifyfilemonitor.c:
Use the extension points registration instead
of g_type_children().
svn path=/trunk/; revision=6399
301 lines
8.8 KiB
C
301 lines
8.8 KiB
C
/* 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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*/
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#include <config.h>
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#include "glocaldirectorymonitor.h"
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#include "gunixmounts.h"
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#include "giomodule-priv.h"
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#include "glibintl.h"
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#include <string.h>
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#include "gioalias.h"
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enum
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{
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PROP_0,
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PROP_DIRNAME
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};
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static gboolean g_local_directory_monitor_cancel (GFileMonitor *monitor);
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static void mounts_changed (GUnixMountMonitor *mount_monitor,
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gpointer user_data);
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G_DEFINE_ABSTRACT_TYPE (GLocalDirectoryMonitor, g_local_directory_monitor, G_TYPE_FILE_MONITOR)
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static void
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g_local_directory_monitor_finalize (GObject *object)
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{
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GLocalDirectoryMonitor *local_monitor;
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local_monitor = G_LOCAL_DIRECTORY_MONITOR (object);
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g_free (local_monitor->dirname);
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if (local_monitor->mount_monitor)
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{
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g_signal_handlers_disconnect_by_func (local_monitor->mount_monitor, mounts_changed, local_monitor);
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g_object_unref (local_monitor->mount_monitor);
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local_monitor->mount_monitor = NULL;
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}
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if (G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize)
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(*G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize) (object);
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}
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static void
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g_local_directory_monitor_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id)
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{
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case PROP_DIRNAME:
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/* Do nothing */
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static GObject *
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g_local_directory_monitor_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_properties)
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{
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GObject *obj;
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GLocalDirectoryMonitorClass *klass;
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GObjectClass *parent_class;
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GLocalDirectoryMonitor *local_monitor;
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const gchar *dirname = NULL;
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gint i;
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klass = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_peek (G_TYPE_LOCAL_DIRECTORY_MONITOR));
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parent_class = G_OBJECT_CLASS (g_type_class_peek_parent (klass));
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obj = parent_class->constructor (type,
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n_construct_properties,
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construct_properties);
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local_monitor = G_LOCAL_DIRECTORY_MONITOR (obj);
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for (i = 0; i < n_construct_properties; i++)
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{
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if (strcmp ("dirname", g_param_spec_get_name (construct_properties[i].pspec)) == 0)
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{
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g_warn_if_fail (G_VALUE_HOLDS_STRING (construct_properties[i].value));
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dirname = g_value_get_string (construct_properties[i].value);
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break;
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}
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}
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local_monitor->dirname = g_strdup (dirname);
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if (!klass->mount_notify)
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{
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#ifdef G_OS_WIN32
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g_warning ("G_OS_WIN32: no mount emulation");
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#else
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GUnixMountEntry *mount;
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/* Emulate unmount detection */
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mount = g_unix_mount_at (local_monitor->dirname, NULL);
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local_monitor->was_mounted = mount != NULL;
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if (mount)
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g_unix_mount_free (mount);
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local_monitor->mount_monitor = g_unix_mount_monitor_new ();
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g_signal_connect (local_monitor->mount_monitor, "mounts_changed",
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G_CALLBACK (mounts_changed), local_monitor);
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#endif
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}
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return obj;
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}
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static void
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g_local_directory_monitor_class_init (GLocalDirectoryMonitorClass* klass)
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{
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GObjectClass* gobject_class = G_OBJECT_CLASS (klass);
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GFileMonitorClass *file_monitor_class = G_FILE_MONITOR_CLASS (klass);
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gobject_class->finalize = g_local_directory_monitor_finalize;
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gobject_class->set_property = g_local_directory_monitor_set_property;
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gobject_class->constructor = g_local_directory_monitor_constructor;
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file_monitor_class->cancel = g_local_directory_monitor_cancel;
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g_object_class_install_property (gobject_class,
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PROP_DIRNAME,
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g_param_spec_string ("dirname",
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P_("Directory name"),
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P_("Directory to monitor"),
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NULL,
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G_PARAM_CONSTRUCT_ONLY|
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G_PARAM_WRITABLE|
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G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
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klass->mount_notify = FALSE;
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}
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static void
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g_local_directory_monitor_init (GLocalDirectoryMonitor *local_monitor)
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{
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}
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static void
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mounts_changed (GUnixMountMonitor *mount_monitor,
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gpointer user_data)
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{
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GLocalDirectoryMonitor *local_monitor = user_data;
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GUnixMountEntry *mount;
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gboolean is_mounted;
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GFile *file;
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/* Emulate unmount detection */
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#ifdef G_OS_WIN32
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mount = NULL;
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g_warning ("G_OS_WIN32: no mount emulation");
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#else
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mount = g_unix_mount_at (local_monitor->dirname, NULL);
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is_mounted = mount != NULL;
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if (mount)
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g_unix_mount_free (mount);
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#endif
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if (local_monitor->was_mounted != is_mounted)
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{
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if (local_monitor->was_mounted && !is_mounted)
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{
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file = g_file_new_for_path (local_monitor->dirname);
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g_file_monitor_emit_event (G_FILE_MONITOR (local_monitor),
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file, NULL,
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G_FILE_MONITOR_EVENT_UNMOUNTED);
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g_object_unref (file);
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}
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local_monitor->was_mounted = is_mounted;
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}
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}
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static gpointer
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get_default_local_directory_monitor (gpointer data)
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{
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GLocalDirectoryMonitorClass *chosen_class;
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GLocalDirectoryMonitorClass **ret = data;
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GIOExtensionPoint *ep;
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GList *extensions, *l;
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_g_io_modules_ensure_loaded ();
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ep = g_io_extension_point_lookup (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME);
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extensions = g_io_extension_point_get_extensions (ep);
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chosen_class = NULL;
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for (l = extensions; l != NULL; l = l->next)
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{
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GIOExtension *extension = l->data;
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GLocalDirectoryMonitorClass *klass;
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klass = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_io_extension_ref_class (extension));
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if (klass->is_supported ())
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{
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chosen_class = klass;
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break;
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}
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else
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g_type_class_unref (klass);
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}
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if (chosen_class)
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{
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*ret = chosen_class;
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return (gpointer)G_TYPE_FROM_CLASS (chosen_class);
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}
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else
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return (gpointer)G_TYPE_INVALID;
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}
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/**
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* _g_local_directory_monitor_new:
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* @dirname: filename of the directory to monitor.
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* @flags: #GFileMonitorFlags.
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*
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* Returns: new #GFileMonitor for the given @dirname.
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**/
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GFileMonitor*
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_g_local_directory_monitor_new (const char *dirname,
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GFileMonitorFlags flags,
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GError **error)
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{
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static GOnce once_init = G_ONCE_INIT;
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GTypeClass *type_class;
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GFileMonitor *monitor;
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GType type;
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type_class = NULL;
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g_once (&once_init, get_default_local_directory_monitor, &type_class);
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type = (GType)once_init.retval;
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monitor = NULL;
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if (type != G_TYPE_INVALID)
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monitor = G_FILE_MONITOR (g_object_new (type, "dirname", dirname, NULL));
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else
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Unable to find default local directory monitor type"));
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/* This is non-null on first pass here. Unref the class now.
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* This is to avoid unloading the module and then loading it
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* again which would happen if we unrefed the class
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* before creating the monitor.
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*/
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if (type_class)
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g_type_class_unref (type_class);
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return monitor;
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}
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static gboolean
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g_local_directory_monitor_cancel (GFileMonitor *monitor)
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{
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GLocalDirectoryMonitor *local_monitor = G_LOCAL_DIRECTORY_MONITOR (monitor);
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if (local_monitor->mount_monitor)
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{
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g_signal_handlers_disconnect_by_func (local_monitor->mount_monitor, mounts_changed, local_monitor);
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g_object_unref (local_monitor->mount_monitor);
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local_monitor->mount_monitor = NULL;
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}
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return TRUE;
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}
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#define __G_LOCAL_DIRECTORY_MONITOR_C__
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#include "gioaliasdef.c"
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