gio/glocalfilemonitor.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * Author: Alexander Larsson <alexl@redhat.com>
  19  */
  20
  21 #include "config.h"
  22
  23 #include "gioenumtypes.h"
  24 #include "glocalfilemonitor.h"
  25 #include "giomodule-priv.h"
  26 #include "gioerror.h"
  27 #include "glibintl.h"
  28
  29 #include <string.h>
  30
  31
  32 enum
  33 {
  34   PROP_0,
  35   PROP_FILENAME,
  36   PROP_FLAGS
  37 };
  38
  39 G_DEFINE_ABSTRACT_TYPE (GLocalFileMonitor, g_local_file_monitor, G_TYPE_FILE_MONITOR)
  40
  41 static void
  42 g_local_file_monitor_init (GLocalFileMonitor* local_monitor)
  43 {
  44 }
  45
  46 static void
  47 g_local_file_monitor_set_property (GObject      *object,
  48                                    guint         property_id,
  49                                    const GValue *value,
  50                                    GParamSpec   *pspec)
  51 {
  52   GLocalFileMonitor *local_monitor = G_LOCAL_FILE_MONITOR (object);
  53
  54   switch (property_id)
  55     {
  56     case PROP_FILENAME:
  57       local_monitor->filename = g_value_dup_string (value);
  58       break;
  59
  60     case PROP_FLAGS:
  61       local_monitor->flags = g_value_get_flags (value);
  62       break;
  63
  64     default:
  65       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
  66       break;
  67     }
  68 }
  69
  70 void
  71 g_local_file_monitor_start (GLocalFileMonitor *local_monitor)
  72 {
  73   GLocalFileMonitorClass *class;
  74
  75   class = G_LOCAL_FILE_MONITOR_GET_CLASS (local_monitor);
  76
  77   if (class->start)
  78     class->start (local_monitor);
  79 }
  80
  81 static void
  82 g_local_file_monitor_finalize (GObject *object)
  83 {
  84   GLocalFileMonitor *local_monitor = G_LOCAL_FILE_MONITOR (object);
  85
  86   g_free (local_monitor->filename);
  87
  88   G_OBJECT_CLASS (g_local_file_monitor_parent_class)->finalize (object);
  89 }
  90
  91 static void g_local_file_monitor_class_init (GLocalFileMonitorClass *klass)
  92 {
  93   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  94
  95   gobject_class->set_property = g_local_file_monitor_set_property;
  96   gobject_class->finalize = g_local_file_monitor_finalize;
  97
  98   g_object_class_install_property (gobject_class,
  99                                    PROP_FILENAME,
 100                                    g_param_spec_string ("filename",
 101                                                         P_("File name"),
 102                                                         P_("File name to monitor"),
 103                                                         NULL,
 104                                                         G_PARAM_CONSTRUCT_ONLY|
 105                                                         G_PARAM_WRITABLE|
 106                                                         G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
 107
 108   g_object_class_install_property (gobject_class,
 109                                    PROP_FLAGS,
 110                                    g_param_spec_flags ("flags",
 111                                                        P_("Monitor flags"),
 112                                                        P_("Monitor flags"),
 113                                                        G_TYPE_FILE_MONITOR_FLAGS,
 114                                                        0,
 115                                                        G_PARAM_CONSTRUCT_ONLY|
 116                                                        G_PARAM_WRITABLE|
 117                                                        G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
 118 }
 119
 120 GFileMonitor*
 121 _g_local_file_monitor_new (const char         *pathname,
 122                            GFileMonitorFlags   flags,
 123                            GMainContext       *context,
 124                            gboolean            is_remote_fs,
 125                            gboolean            do_start,
 126                            GError            **error)
 127 {
 128   GFileMonitor *monitor = NULL;
 129   GType type = G_TYPE_INVALID;
 130
 131   if (is_remote_fs)
 132     type = _g_io_module_get_default_type (G_NFS_FILE_MONITOR_EXTENSION_POINT_NAME,
 133                                           "GIO_USE_FILE_MONITOR",
 134                                           G_STRUCT_OFFSET (GLocalFileMonitorClass, is_supported));
 135
 136   if (type == G_TYPE_INVALID)
 137     type = _g_io_module_get_default_type (G_LOCAL_FILE_MONITOR_EXTENSION_POINT_NAME,
 138                                           "GIO_USE_FILE_MONITOR",
 139                                           G_STRUCT_OFFSET (GLocalFileMonitorClass, is_supported));
 140
 141   if (type != G_TYPE_INVALID)
 142     monitor = G_FILE_MONITOR (g_object_new (type, "filename", pathname, "flags", flags, "context", context, NULL));
 143   else
 144     g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
 145                          _("Unable to find default local file monitor type"));
 146
 147   if (monitor && do_start)
 148     g_local_file_monitor_start (G_LOCAL_FILE_MONITOR (monitor));
 149
 150   return monitor;
 151 }