mirror of https://gitee.com/openkylin/gvfs.git
112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
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/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2009 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., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __META_TREE_H__
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#define __META_TREE_H__
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#include <glib.h>
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#include "metadata-dbus.h"
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typedef struct _MetaTree MetaTree;
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typedef struct _MetaLookupCache MetaLookupCache;
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typedef enum {
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META_KEY_TYPE_NONE,
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META_KEY_TYPE_STRING,
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META_KEY_TYPE_STRINGV
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} MetaKeyType;
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/* Note: These are called with the read-lock held, so
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don't call any MetaTree operations */
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typedef gboolean (*meta_tree_dir_enumerate_callback) (const char *entry,
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guint64 last_changed,
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gboolean has_children,
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gboolean has_data,
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gpointer user_data);
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typedef gboolean (*meta_tree_keys_enumerate_callback) (const char *key,
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MetaKeyType type,
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gpointer value,
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gpointer user_data);
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/* MetaLookupCache is not threadsafe */
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MetaLookupCache *meta_lookup_cache_new (void);
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void meta_lookup_cache_free (MetaLookupCache *cache);
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MetaTree *meta_lookup_cache_lookup_path (MetaLookupCache *cache,
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const char *filename,
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guint64 device,
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gboolean for_write,
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char **tree_path);
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/* All public MetaTree calls are threadsafe */
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MetaTree * meta_tree_open (const char *filename,
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gboolean for_write);
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MetaTree * meta_tree_lookup_by_name (const char *name,
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gboolean for_write);
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MetaTree * meta_tree_ref (MetaTree *tree);
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void meta_tree_unref (MetaTree *tree);
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gboolean meta_tree_refresh (MetaTree *tree);
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const char *meta_tree_get_filename (MetaTree *tree);
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gboolean meta_tree_exists (MetaTree *tree);
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gboolean meta_tree_is_on_nfs (MetaTree *tree);
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MetaKeyType meta_tree_lookup_key_type (MetaTree *tree,
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const char *path,
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const char *key);
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guint64 meta_tree_get_last_changed (MetaTree *tree,
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const char *path);
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char * meta_tree_lookup_string (MetaTree *tree,
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const char *path,
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const char *key);
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char ** meta_tree_lookup_stringv (MetaTree *tree,
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const char *path,
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const char *key);
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void meta_tree_enumerate_dir (MetaTree *tree,
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const char *path,
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meta_tree_dir_enumerate_callback callback,
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gpointer user_data);
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void meta_tree_enumerate_keys (MetaTree *tree,
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const char *path,
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meta_tree_keys_enumerate_callback callback,
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gpointer user_data);
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gboolean meta_tree_flush (MetaTree *tree);
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gboolean meta_tree_unset (MetaTree *tree,
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const char *path,
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const char *key);
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gboolean meta_tree_set_string (MetaTree *tree,
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const char *path,
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const char *key,
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const char *value);
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gboolean meta_tree_set_stringv (MetaTree *tree,
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const char *path,
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const char *key,
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char **value);
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gboolean meta_tree_remove (MetaTree *tree,
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const char *path);
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gboolean meta_tree_copy (MetaTree *tree,
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const char *src,
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const char *dest);
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GVfsMetadata *meta_tree_get_metadata_proxy (void);
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#endif /* __META_TREE_H__ */
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