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b050dc3c0a
Stop abusing constructor() to do startup work, adding _start() calls instead. The backends themselves still use constructor() although a patch will be following to also fix inotify. The reason for using a separate start() call instead of constructed() will become apparent in future commits. https://bugzilla.gnome.org/show_bug.cgi?id=704887
246 lines
7.6 KiB
C
246 lines
7.6 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 "gfile.h"
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#include "gioerror.h"
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#include "glibintl.h"
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#include <string.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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PROP_FLAGS
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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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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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GLocalDirectoryMonitor *local_monitor = G_LOCAL_DIRECTORY_MONITOR (object);
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switch (property_id)
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{
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case PROP_DIRNAME:
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local_monitor->dirname = g_value_dup_string (value);
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break;
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case PROP_FLAGS:
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local_monitor->flags = g_value_get_flags (value);
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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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void
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g_local_directory_monitor_start (GLocalDirectoryMonitor *local_monitor)
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{
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GLocalDirectoryMonitorClass *class;
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class = G_LOCAL_DIRECTORY_MONITOR_GET_CLASS (local_monitor);
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if (!class->mount_notify && (local_monitor->flags & G_FILE_MONITOR_WATCH_MOUNTS))
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{
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#ifdef G_OS_WIN32
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/*claim everything was mounted */
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local_monitor->was_mounted = TRUE;
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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_object (local_monitor->mount_monitor, "mounts-changed",
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G_CALLBACK (mounts_changed), local_monitor, 0);
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#endif
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}
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if (class->start)
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class->start (local_monitor);
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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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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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g_object_class_install_property (gobject_class,
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PROP_FLAGS,
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g_param_spec_flags ("flags",
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P_("Monitor flags"),
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P_("Monitor flags"),
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G_TYPE_FILE_MONITOR_FLAGS,
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0,
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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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#ifdef G_OS_UNIX
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GUnixMountEntry *mount;
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#endif
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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_UNIX
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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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#else
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/*claim everything was mounted */
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is_mounted = TRUE;
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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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GFileMonitor*
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_g_local_directory_monitor_new (const char *dirname,
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GFileMonitorFlags flags,
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gboolean is_remote_fs,
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GError **error)
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{
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GFileMonitor *monitor = NULL;
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GType type = G_TYPE_INVALID;
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if (is_remote_fs)
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type = _g_io_module_get_default_type (G_NFS_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
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"GIO_USE_FILE_MONITOR",
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G_STRUCT_OFFSET (GLocalDirectoryMonitorClass, is_supported));
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if (type == G_TYPE_INVALID)
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type = _g_io_module_get_default_type (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
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"GIO_USE_FILE_MONITOR",
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G_STRUCT_OFFSET (GLocalDirectoryMonitorClass, is_supported));
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if (type != G_TYPE_INVALID)
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monitor = G_FILE_MONITOR (g_object_new (type, "dirname", dirname, "flags", flags, NULL));
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else
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g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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_("Unable to find default local directory monitor type"));
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if (monitor)
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g_local_directory_monitor_start (G_LOCAL_DIRECTORY_MONITOR (monitor));
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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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