1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include <string.h>
#include "gvfs.h"
#include "glib-private.h"
#include "glocalvfs.h"
#include "gresourcefile.h"
#include "giomodule-priv.h"
#include "glibintl.h"
/**
* SECTION:gvfs
* @short_description: Virtual File System
* @include: gio/gio.h
*
* Entry point for using GIO functionality.
*
*/
G_DEFINE_TYPE (GVfs, g_vfs, G_TYPE_OBJECT);
static void
g_vfs_class_init (GVfsClass *klass)
{
}
static void
g_vfs_init (GVfs *vfs)
{
}
/**
* g_vfs_is_active:
* @vfs: a #GVfs.
*
* Checks if the VFS is active.
*
* Returns: %TRUE if construction of the @vfs was successful
* and it is now active.
*/
gboolean
g_vfs_is_active (GVfs *vfs)
{
GVfsClass *class;
g_return_val_if_fail (G_IS_VFS (vfs), FALSE);
class = G_VFS_GET_CLASS (vfs);
return (* class->is_active) (vfs);
}
/**
* g_vfs_get_file_for_path:
* @vfs: a #GVfs.
* @path: a string containing a VFS path.
*
* Gets a #GFile for @path.
*
* Returns: (transfer full): a #GFile.
* Free the returned object with g_object_unref().
*/
GFile *
g_vfs_get_file_for_path (GVfs *vfs,
const char *path)
{
GVfsClass *class;
g_return_val_if_fail (G_IS_VFS (vfs), NULL);
g_return_val_if_fail (path != NULL, NULL);
class = G_VFS_GET_CLASS (vfs);
return (* class->get_file_for_path) (vfs, path);
}
/**
* g_vfs_get_file_for_uri:
* @vfs: a#GVfs.
* @uri: a string containing a URI
*
* Gets a #GFile for @uri.
*
* This operation never fails, but the returned object
* might not support any I/O operation if the URI
* is malformed or if the URI scheme is not supported.
*
* Returns: (transfer full): a #GFile.
* Free the returned object with g_object_unref().
*/
GFile *
g_vfs_get_file_for_uri (GVfs *vfs,
const char *uri)
{
GVfsClass *class;
g_return_val_if_fail (G_IS_VFS (vfs), NULL);
g_return_val_if_fail (uri != NULL, NULL);
class = G_VFS_GET_CLASS (vfs);
/* This is an unfortunate placement, but we really
* need to check this before chaining to the vfs,
* because we want to support resource uris for
* all vfs:es, even those that predate resources.
*/
if (g_str_has_prefix (uri, "resource:"))
return _g_resource_file_new (uri);
return (* class->get_file_for_uri) (vfs, uri);
}
/**
* g_vfs_get_supported_uri_schemes:
* @vfs: a #GVfs.
*
* Gets a list of URI schemes supported by @vfs.
*
* Returns: (transfer none): a %NULL-terminated array of strings.
* The returned array belongs to GIO and must
* not be freed or modified.
*/
const gchar * const *
g_vfs_get_supported_uri_schemes (GVfs *vfs)
{
GVfsClass *class;
g_return_val_if_fail (G_IS_VFS (vfs), NULL);
class = G_VFS_GET_CLASS (vfs);
return (* class->get_supported_uri_schemes) (vfs);
}
/**
* g_vfs_parse_name:
* @vfs: a #GVfs.
* @parse_name: a string to be parsed by the VFS module.
*
* This operation never fails, but the returned object might
* not support any I/O operations if the @parse_name cannot
* be parsed by the #GVfs module.
*
* Returns: (transfer full): a #GFile for the given @parse_name.
* Free the returned object with g_object_unref().
*/
GFile *
g_vfs_parse_name (GVfs *vfs,
const char *parse_name)
{
GVfsClass *class;
g_return_val_if_fail (G_IS_VFS (vfs), NULL);
g_return_val_if_fail (parse_name != NULL, NULL);
class = G_VFS_GET_CLASS (vfs);
if (g_str_has_prefix (parse_name, "resource:"))
return _g_resource_file_new (parse_name);
return (* class->parse_name) (vfs, parse_name);
}
/**
* g_vfs_get_default:
*
* Gets the default #GVfs for the system.
*
* Returns: (transfer none): a #GVfs.
*/
GVfs *
g_vfs_get_default (void)
{
if (GLIB_PRIVATE_CALL (g_check_setuid) ())
return g_vfs_get_local ();
return _g_io_module_get_default (G_VFS_EXTENSION_POINT_NAME,
"GIO_USE_VFS",
(GIOModuleVerifyFunc)g_vfs_is_active);
}
/**
* g_vfs_get_local:
*
* Gets the local #GVfs for the system.
*
* Returns: (transfer none): a #GVfs.
*/
GVfs *
g_vfs_get_local (void)
{
static gsize vfs = 0;
if (g_once_init_enter (&vfs))
g_once_init_leave (&vfs, (gsize)_g_local_vfs_new ());
return G_VFS (vfs);
}
|
