GSettings: fix check for delaying backend subscription
[platform/upstream/glib.git] / gio / glocaldirectorymonitor.c
index d620afc..d85d752 100644 (file)
  * 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.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  *
  * Author: Alexander Larsson <alexl@redhat.com>
  */
 
-#include <config.h>
+#include "config.h"
 
 #include "glocaldirectorymonitor.h"
 #include "gunixmounts.h"
-#include "gdirectorymonitor.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_DIRNAME,
+  PROP_FLAGS
 };
 
-static gboolean g_local_directory_monitor_cancel (GDirectoryMonitor* monitor);
-static void mounts_changed (GUnixMountMonitor *mount_monitor, gpointer user_data);
+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_DIRECTORY_MONITOR)
+G_DEFINE_ABSTRACT_TYPE (GLocalDirectoryMonitor, g_local_directory_monitor, G_TYPE_FILE_MONITOR)
 
 static void
-g_local_directory_monitor_finalize (GObjectobject)
+g_local_directory_monitor_finalize (GObject *object)
 {
-  GLocalDirectoryMonitorlocal_monitor;
+  GLocalDirectoryMonitor *local_monitor;
   local_monitor = G_LOCAL_DIRECTORY_MONITOR (object);
 
   g_free (local_monitor->dirname);
@@ -57,8 +58,7 @@ g_local_directory_monitor_finalize (GObject* object)
       local_monitor->mount_monitor = NULL;
     }
 
-  if (G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize)
-    (*G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize) (object);
+  G_OBJECT_CLASS (g_local_directory_monitor_parent_class)->finalize (object);
 }
 
 static void
@@ -67,95 +67,94 @@ g_local_directory_monitor_set_property (GObject      *object,
                                         const GValue *value,
                                         GParamSpec   *pspec)
 {
+  GLocalDirectoryMonitor *local_monitor = G_LOCAL_DIRECTORY_MONITOR (object);
+
   switch (property_id)
-  {
+    {
     case PROP_DIRNAME:
-      /* Do nothing */
+      local_monitor->dirname = g_value_dup_string (value);
       break;
+
+    case PROP_FLAGS:
+      local_monitor->flags = g_value_get_flags (value);
+      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)
+void
+g_local_directory_monitor_start (GLocalDirectoryMonitor *local_monitor)
 {
-  GObject *obj;
-  GLocalDirectoryMonitorClass *klass;
-  GObjectClass *parent_class;
-  GLocalDirectoryMonitor *local_monitor;
-  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);
-          break;
-        }
-    }
+  GLocalDirectoryMonitorClass *class;
 
-  local_monitor->dirname = g_strdup (dirname);
+  class = G_LOCAL_DIRECTORY_MONITOR_GET_CLASS (local_monitor);
 
-  if (!klass->mount_notify)
+  if (!class->mount_notify && (local_monitor->flags & G_FILE_MONITOR_WATCH_MOUNTS))
     {
 #ifdef G_OS_WIN32
-      g_warning ("G_OS_WIN32: no mount emulation");
+      /*claim everything was mounted */
+      local_monitor->was_mounted = TRUE;
 #else
-      GUnixMount *mount;
-      
+      GUnixMountEntry *mount;
+
       /* Emulate unmount detection */
-      
-      mount = g_get_unix_mount_at (local_monitor->dirname, NULL);
-      
+
+      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 (local_monitor->mount_monitor, "mounts_changed",
-        G_CALLBACK (mounts_changed), local_monitor);
+      g_signal_connect_object (local_monitor->mount_monitor, "mounts-changed",
+                               G_CALLBACK (mounts_changed), local_monitor, 0);
 #endif
     }
 
-  return obj;
+  if (class->start)
+    class->start (local_monitor);
 }
 
 static void
 g_local_directory_monitor_class_init (GLocalDirectoryMonitorClass* klass)
 {
   GObjectClass* gobject_class = G_OBJECT_CLASS (klass);
-  GDirectoryMonitorClass *dir_monitor_class = G_DIRECTORY_MONITOR_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;
 
-  dir_monitor_class->cancel = g_local_directory_monitor_cancel;
-
-  g_object_class_install_property (gobject_class, PROP_DIRNAME,
-    g_param_spec_string ("dirname", "Directory name", "Directory to monitor",
-        NULL, G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE));
+  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 (GLocalDirectoryMonitorlocal_monitor)
+g_local_directory_monitor_init (GLocalDirectoryMonitor *local_monitor)
 {
 }
 
@@ -164,21 +163,23 @@ mounts_changed (GUnixMountMonitor *mount_monitor,
                 gpointer           user_data)
 {
   GLocalDirectoryMonitor *local_monitor = user_data;
-  GUnixMount *mount;
+#ifdef G_OS_UNIX
+  GUnixMountEntry *mount;
+#endif
   gboolean is_mounted;
   GFile *file;
   
   /* Emulate unmount detection */
-#ifdef G_OS_WIN32
-  mount = NULL;
-  g_warning ("G_OS_WIN32: no mount emulation");
-#else  
-  mount = g_get_unix_mount_at (local_monitor->dirname, NULL);
+#ifdef G_OS_UNIX
+  mount = g_unix_mount_at (local_monitor->dirname, NULL);
   
   is_mounted = mount != NULL;
   
   if (mount)
     g_unix_mount_free (mount);
+#else
+  /*claim everything was mounted */
+  is_mounted = TRUE;
 #endif
 
   if (local_monitor->was_mounted != is_mounted)
@@ -186,105 +187,50 @@ mounts_changed (GUnixMountMonitor *mount_monitor,
       if (local_monitor->was_mounted && !is_mounted)
         {
           file = g_file_new_for_path (local_monitor->dirname);
-          g_directory_monitor_emit_event (G_DIRECTORY_MONITOR (local_monitor),
-                                          file, NULL,
-                                          G_FILE_MONITOR_EVENT_UNMOUNTED);
+          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 gint
-_compare_monitor_class_by_prio (gconstpointer a,
-                                gconstpointer b,
-                                gpointer      user_data)
-{
-  GType *type1 = (GType *) a, *type2 = (GType *) b;
-  GLocalDirectoryMonitorClass *klass1, *klass2;
-  gint ret;
-
-  klass1 = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_ref (*type1));
-  klass2 = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_ref (*type2));
-
-  ret = klass1->prio - klass2->prio;
-
-  g_type_class_unref (klass1);
-  g_type_class_unref (klass2);
-
-  return ret;
-}
-
-extern GType _g_inotify_directory_monitor_get_type (void);
-
-static gpointer
-get_default_local_directory_monitor (gpointer data)
+GFileMonitor*
+_g_local_directory_monitor_new (const char         *dirname,
+                                GFileMonitorFlags   flags,
+                                GMainContext       *context,
+                                gboolean            is_remote_fs,
+                                gboolean            do_start,
+                                GError            **error)
 {
-  GType *monitor_impls, chosen_type;
-  guint n_monitor_impls;
-  GType *ret = (GType *) data;
-  gint i;
-
-#if defined(HAVE_SYS_INOTIFY_H) || defined(HAVE_LINUX_INOTIFY_H)
-  /* Register Inotify monitor */
-  _g_inotify_directory_monitor_get_type ();
-#endif
-
-  _g_io_modules_ensure_loaded ();
-  
-  monitor_impls = g_type_children (G_TYPE_LOCAL_DIRECTORY_MONITOR,
-                                   &n_monitor_impls);
+  GFileMonitor *monitor = NULL;
+  GType type = G_TYPE_INVALID;
 
-  chosen_type = G_TYPE_INVALID;
+  if (is_remote_fs)
+    type = _g_io_module_get_default_type (G_NFS_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
+                                          "GIO_USE_FILE_MONITOR",
+                                          G_STRUCT_OFFSET (GLocalDirectoryMonitorClass, is_supported));
 
-  g_qsort_with_data (monitor_impls,
-                     n_monitor_impls,
-                     sizeof (GType),
-                     _compare_monitor_class_by_prio,
-                     NULL);
+  if (type == G_TYPE_INVALID)
+    type = _g_io_module_get_default_type (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
+                                          "GIO_USE_FILE_MONITOR",
+                                          G_STRUCT_OFFSET (GLocalDirectoryMonitorClass, is_supported));
 
-  for (i = n_monitor_impls - 1; i >= 0 && chosen_type == G_TYPE_INVALID; i--)
-    {    
-      GLocalDirectoryMonitorClass *klass;
+  if (type != G_TYPE_INVALID)
+    monitor = G_FILE_MONITOR (g_object_new (type, "dirname", dirname, "flags", flags, "context", context, NULL));
+  else
+    g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                         _("Unable to find default local directory monitor type"));
 
-      klass = G_LOCAL_DIRECTORY_MONITOR_CLASS (g_type_class_ref (monitor_impls[i]));
+  if (monitor && do_start)
+    g_local_directory_monitor_start (G_LOCAL_DIRECTORY_MONITOR (monitor));
 
-      if (klass->is_supported())
-        chosen_type = monitor_impls[i];
-
-      g_type_class_unref (klass);
-    }
-
-  g_free (monitor_impls);
-  *ret = chosen_type;
-
-  return NULL;
-}
-
-/**
- * g_local_directory_monitor_new:
- * @dirname: filename of the directory to monitor.
- * @flags: #GFileMonitorFlags.
- * 
- * Returns: new #GDirectoryMonitor for the given @dirname.
- **/
-GDirectoryMonitor*
-_g_local_directory_monitor_new (const char*       dirname,
-                               GFileMonitorFlags flags)
-{
-  static GOnce once_init = G_ONCE_INIT;
-  static GType monitor_type = G_TYPE_INVALID;
-
-  g_once (&once_init, get_default_local_directory_monitor, &monitor_type);
-
-  if (monitor_type != G_TYPE_INVALID)
-    return G_DIRECTORY_MONITOR (g_object_new (monitor_type, "dirname", dirname, NULL));
-
-  return NULL;
+  return monitor;
 }
 
 static gboolean
-g_local_directory_monitor_cancel (GDirectoryMonitor* monitor)
+g_local_directory_monitor_cancel (GFileMonitor *monitor)
 {
   GLocalDirectoryMonitor *local_monitor = G_LOCAL_DIRECTORY_MONITOR (monitor);
 
@@ -297,6 +243,3 @@ g_local_directory_monitor_cancel (GDirectoryMonitor* monitor)
 
   return TRUE;
 }
-
-#define __G_LOCAL_DIRECTORY_MONITOR_C__
-#include "gioaliasdef.c"