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      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, write to the
     17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
     18  * Boston, MA 02111-1307, USA.
     19  *
     20  * Author: Alexander Larsson <alexl (at) redhat.com>
     21  */
     22 
     23 #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
     24 #error "Only <gio/gio.h> can be included directly."
     25 #endif
     26 
     27 #ifndef __G_FILE_ENUMERATOR_H__
     28 #define __G_FILE_ENUMERATOR_H__
     29 
     30 #include <gio/giotypes.h>
     31 
     32 G_BEGIN_DECLS
     33 
     34 #define G_TYPE_FILE_ENUMERATOR         (g_file_enumerator_get_type ())
     35 #define G_FILE_ENUMERATOR(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_ENUMERATOR, GFileEnumerator))
     36 #define G_FILE_ENUMERATOR_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_ENUMERATOR, GFileEnumeratorClass))
     37 #define G_IS_FILE_ENUMERATOR(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_ENUMERATOR))
     38 #define G_IS_FILE_ENUMERATOR_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_ENUMERATOR))
     39 #define G_FILE_ENUMERATOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_ENUMERATOR, GFileEnumeratorClass))
     40 
     41 /**
     42  * GFileEnumerator:
     43  * @parent_instance: The parent class.
     44  *
     45  * A per matched file iterator.
     46  **/
     47 typedef struct _GFileEnumeratorClass    GFileEnumeratorClass;
     48 typedef struct _GFileEnumeratorPrivate  GFileEnumeratorPrivate;
     49 
     50 struct _GFileEnumerator
     51 {
     52   GObject parent_instance;
     53 
     54   /*< private >*/
     55   GFileEnumeratorPrivate *priv;
     56 };
     57 
     58 struct _GFileEnumeratorClass
     59 {
     60   GObjectClass parent_class;
     61 
     62   /* Virtual Table */
     63 
     64   GFileInfo * (* next_file)         (GFileEnumerator      *enumerator,
     65                                      GCancellable         *cancellable,
     66                                      GError              **error);
     67   gboolean    (* close_fn)          (GFileEnumerator      *enumerator,
     68                                      GCancellable         *cancellable,
     69                                      GError              **error);
     70 
     71   void        (* next_files_async)  (GFileEnumerator      *enumerator,
     72                                      int                   num_files,
     73                                      int                   io_priority,
     74                                      GCancellable         *cancellable,
     75                                      GAsyncReadyCallback   callback,
     76                                      gpointer              user_data);
     77   GList *     (* next_files_finish) (GFileEnumerator      *enumerator,
     78                                      GAsyncResult         *res,
     79                                      GError              **error);
     80   void        (* close_async)       (GFileEnumerator      *enumerator,
     81                                      int                   io_priority,
     82                                      GCancellable         *cancellable,
     83                                      GAsyncReadyCallback   callback,
     84                                      gpointer              user_data);
     85   gboolean    (* close_finish)      (GFileEnumerator      *enumerator,
     86                                      GAsyncResult         *res,
     87                                      GError              **error);
     88 
     89   /*< private >*/
     90   /* Padding for future expansion */
     91   void (*_g_reserved1) (void);
     92   void (*_g_reserved2) (void);
     93   void (*_g_reserved3) (void);
     94   void (*_g_reserved4) (void);
     95   void (*_g_reserved5) (void);
     96   void (*_g_reserved6) (void);
     97   void (*_g_reserved7) (void);
     98 };
     99 
    100 GType      g_file_enumerator_get_type          (void) G_GNUC_CONST;
    101 
    102 GFileInfo *g_file_enumerator_next_file         (GFileEnumerator      *enumerator,
    103 						GCancellable         *cancellable,
    104 						GError              **error);
    105 gboolean   g_file_enumerator_close             (GFileEnumerator      *enumerator,
    106 						GCancellable         *cancellable,
    107 						GError              **error);
    108 void       g_file_enumerator_next_files_async  (GFileEnumerator      *enumerator,
    109 						int                   num_files,
    110 						int                   io_priority,
    111 						GCancellable         *cancellable,
    112 						GAsyncReadyCallback   callback,
    113 						gpointer              user_data);
    114 GList *    g_file_enumerator_next_files_finish (GFileEnumerator      *enumerator,
    115 						GAsyncResult         *result,
    116 						GError              **error);
    117 void       g_file_enumerator_close_async       (GFileEnumerator      *enumerator,
    118 						int                   io_priority,
    119 						GCancellable         *cancellable,
    120 						GAsyncReadyCallback   callback,
    121 						gpointer              user_data);
    122 gboolean   g_file_enumerator_close_finish      (GFileEnumerator      *enumerator,
    123 						GAsyncResult         *result,
    124 						GError              **error);
    125 gboolean   g_file_enumerator_is_closed         (GFileEnumerator      *enumerator);
    126 gboolean   g_file_enumerator_has_pending       (GFileEnumerator      *enumerator);
    127 void       g_file_enumerator_set_pending       (GFileEnumerator      *enumerator,
    128 						gboolean              pending);
    129 GFile *    g_file_enumerator_get_container     (GFileEnumerator *enumerator);
    130 
    131 G_END_DECLS
    132 
    133 #endif /* __G_FILE_ENUMERATOR_H__ */
    134