1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
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.
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.
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.
20 * Author: Alexander Larsson <alexl@redhat.com>
27 #include "gresource.h"
28 #include "gresourcefile.h"
29 #include "gfileattribute.h"
30 #include <gfileattribute-priv.h>
31 #include <gfileinfo-priv.h>
33 #include "gseekable.h"
34 #include "gfileinputstream.h"
35 #include "gfileinfo.h"
36 #include "gfileenumerator.h"
37 #include "gcontenttype.h"
39 #include <glib/gstdio.h>
44 GObject parent_instance;
49 struct _GResourceFileEnumerator
51 GFileEnumerator parent;
53 GFileAttributeMatcher *matcher;
56 GFileQueryInfoFlags flags;
62 struct _GResourceFileEnumeratorClass
64 GFileEnumeratorClass parent_class;
67 typedef struct _GResourceFileEnumerator GResourceFileEnumerator;
68 typedef struct _GResourceFileEnumeratorClass GResourceFileEnumeratorClass;
70 static void g_resource_file_file_iface_init (GFileIface *iface);
72 static GFileAttributeInfoList *resource_writable_attributes = NULL;
73 static GFileAttributeInfoList *resource_writable_namespaces = NULL;
75 #define G_TYPE_RESOURCE_FILE_ENUMERATOR (_g_resource_file_enumerator_get_type ())
76 #define G_RESOURCE_FILE_ENUMERATOR(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumerator))
77 #define G_RESOURCE_FILE_ENUMERATOR_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumeratorClass))
78 #define G_IS_RESOURCE_FILE_ENUMERATOR(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR))
79 #define G_IS_RESOURCE_FILE_ENUMERATOR_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_RESOURCE_FILE_ENUMERATOR))
80 #define G_RESOURCE_FILE_ENUMERATOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumeratorClass))
82 #define G_TYPE_RESOURCE_FILE_INPUT_STREAM (_g_resource_file_input_stream_get_type ())
83 #define G_RESOURCE_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStream))
84 #define G_RESOURCE_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStreamClass))
85 #define G_IS_RESOURCE_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM))
86 #define G_IS_RESOURCE_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_RESOURCE_FILE_INPUT_STREAM))
87 #define G_RESOURCE_FILE_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStreamClass))
89 typedef struct _GResourceFileInputStream GResourceFileInputStream;
90 typedef struct _GResourceFileInputStreamClass GResourceFileInputStreamClass;
92 #define g_resource_file_get_type _g_resource_file_get_type
93 G_DEFINE_TYPE_WITH_CODE (GResourceFile, g_resource_file, G_TYPE_OBJECT,
94 G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
95 g_resource_file_file_iface_init))
97 #define g_resource_file_enumerator_get_type _g_resource_file_enumerator_get_type
98 G_DEFINE_TYPE (GResourceFileEnumerator, g_resource_file_enumerator, G_TYPE_FILE_ENUMERATOR);
100 static GFileEnumerator *_g_resource_file_enumerator_new (GResourceFile *file,
101 const char *attributes,
102 GFileQueryInfoFlags flags,
103 GCancellable *cancellable,
107 static GType _g_resource_file_input_stream_get_type (void) G_GNUC_CONST;
109 static GFileInputStream *_g_resource_file_input_stream_new (GInputStream *stream, GFile *file);
113 g_resource_file_finalize (GObject *object)
115 GResourceFile *resource;
117 resource = G_RESOURCE_FILE (object);
119 g_free (resource->path);
121 G_OBJECT_CLASS (g_resource_file_parent_class)->finalize (object);
125 g_resource_file_class_init (GResourceFileClass *klass)
127 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
129 gobject_class->finalize = g_resource_file_finalize;
131 resource_writable_attributes = g_file_attribute_info_list_new ();
132 resource_writable_namespaces = g_file_attribute_info_list_new ();
136 g_resource_file_init (GResourceFile *resource)
141 canonicalize_filename (const char *filename)
143 char *canon, *start, *p, *q;
145 /* Skip multiple inital slashes */
146 while (filename[0] == '/' && filename[1] == '/')
149 if (*filename != '/')
150 canon = g_strconcat ("/", filename, NULL);
152 canon = g_strdup (filename);
159 if (p[0] == '.' && (p[1] == 0 || p[1] == '/'))
161 memmove (p, p+1, strlen (p+1)+1);
163 else if (p[0] == '.' && p[1] == '.' && (p[2] == 0 || p[2] == '/'))
166 /* Skip previous separator */
170 while (p > start && *p != '/')
174 memmove (p, q, strlen (q)+1);
178 /* Skip until next separator */
179 while (*p != 0 && *p != '/')
184 /* Canonicalize one separator */
189 /* Remove additional separators */
191 while (*q && *q == '/')
195 memmove (p, q, strlen (q)+1);
198 /* Remove trailing slashes */
199 if (p > start && *(p-1) == '/')
206 g_resource_file_new_for_path (const char *path)
208 GResourceFile *resource = g_object_new (G_TYPE_RESOURCE_FILE, NULL);
210 resource->path = canonicalize_filename (path);
212 return G_FILE (resource);
216 _g_resource_file_new (const char *uri)
221 path = g_uri_unescape_string (uri + strlen ("resource:"), NULL);
222 resource = g_resource_file_new_for_path (path);
225 return G_FILE (resource);
229 g_resource_file_is_native (GFile *file)
235 g_resource_file_has_uri_scheme (GFile *file,
236 const char *uri_scheme)
238 return g_ascii_strcasecmp (uri_scheme, "resource") == 0;
242 g_resource_file_get_uri_scheme (GFile *file)
244 return g_strdup ("resource");
248 g_resource_file_get_basename (GFile *file)
252 base = strrchr (G_RESOURCE_FILE (file)->path, '/');
253 return g_strdup (base + 1);
257 g_resource_file_get_path (GFile *file)
263 g_resource_file_get_uri (GFile *file)
266 escaped = g_uri_escape_string (G_RESOURCE_FILE (file)->path, G_URI_RESERVED_CHARS_ALLOWED_IN_PATH, FALSE);
267 res = g_strconcat ("resource://", escaped, NULL);
273 g_resource_file_get_parse_name (GFile *file)
275 return g_resource_file_get_uri (file);
279 g_resource_file_get_parent (GFile *file)
281 GResourceFile *resource = G_RESOURCE_FILE (file);
282 GResourceFile *parent;
285 end = strrchr (resource->path, '/');
287 if (end == G_RESOURCE_FILE (file)->path)
290 parent = g_object_new (G_TYPE_RESOURCE_FILE, NULL);
291 parent->path = g_strndup (resource->path,
292 end - resource->path - 1);
294 return G_FILE (parent);
298 g_resource_file_dup (GFile *file)
300 GResourceFile *resource = G_RESOURCE_FILE (file);
302 return g_resource_file_new_for_path (resource->path);
306 g_resource_file_hash (GFile *file)
308 GResourceFile *resource = G_RESOURCE_FILE (file);
310 return g_str_hash (resource->path);
314 g_resource_file_equal (GFile *file1,
317 GResourceFile *resource1 = G_RESOURCE_FILE (file1);
318 GResourceFile *resource2 = G_RESOURCE_FILE (file2);
320 return g_str_equal (resource1->path, resource2->path);
324 match_prefix (const char *path,
329 prefix_len = strlen (prefix);
330 if (strncmp (path, prefix, prefix_len) != 0)
333 /* Handle the case where prefix is the root, so that
334 * the IS_DIR_SEPRARATOR check below works */
335 if (prefix_len > 0 &&
336 prefix[prefix_len-1] == '/')
339 return path + prefix_len;
343 g_resource_file_prefix_matches (GFile *parent,
346 GResourceFile *parent_resource = G_RESOURCE_FILE (parent);
347 GResourceFile *descendant_resource = G_RESOURCE_FILE (descendant);
348 const char *remainder;
350 remainder = match_prefix (descendant_resource->path, parent_resource->path);
351 if (remainder != NULL && *remainder == '/')
357 g_resource_file_get_relative_path (GFile *parent,
360 GResourceFile *parent_resource = G_RESOURCE_FILE (parent);
361 GResourceFile *descendant_resource = G_RESOURCE_FILE (descendant);
362 const char *remainder;
364 remainder = match_prefix (descendant_resource->path, parent_resource->path);
366 if (remainder != NULL && *remainder == '/')
367 return g_strdup (remainder + 1);
372 g_resource_file_resolve_relative_path (GFile *file,
373 const char *relative_path)
375 GResourceFile *resource = G_RESOURCE_FILE (file);
379 if (relative_path[0] == '/')
380 return g_resource_file_new_for_path (relative_path);
382 filename = g_build_path ("/", resource->path, relative_path, NULL);
383 child = g_resource_file_new_for_path (filename);
389 static GFileEnumerator *
390 g_resource_file_enumerate_children (GFile *file,
391 const char *attributes,
392 GFileQueryInfoFlags flags,
393 GCancellable *cancellable,
396 GResourceFile *resource = G_RESOURCE_FILE (file);
397 return _g_resource_file_enumerator_new (resource,
403 g_resource_file_get_child_for_display_name (GFile *file,
404 const char *display_name,
409 new_file = g_file_get_child (file, display_name);
415 g_resource_file_query_info (GFile *file,
416 const char *attributes,
417 GFileQueryInfoFlags flags,
418 GCancellable *cancellable,
421 GResourceFile *resource = G_RESOURCE_FILE (file);
422 GError *my_error = NULL;
424 GFileAttributeMatcher *matcher;
427 guint32 resource_flags;
433 children = g_resources_enumerate_children (resource->path, 0, NULL);
434 if (children != NULL)
436 g_strfreev (children);
440 /* root is always there */
441 if (strcmp ("/", resource->path) == 0)
446 res = g_resources_get_info (resource->path, 0, &size, &resource_flags, &my_error);
449 if (g_error_matches (my_error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND))
451 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
452 _("The resource at '%s' does not exist"),
456 g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
459 g_clear_error (&my_error);
464 matcher = g_file_attribute_matcher_new (attributes);
466 info = g_file_info_new ();
467 base = g_resource_file_get_basename (file);
468 g_file_info_set_name (info, base);
470 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ, TRUE);
471 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_WRITE, FALSE);
472 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_EXECUTE, FALSE);
473 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_RENAME, FALSE);
474 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_DELETE, FALSE);
475 _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH, FALSE);
479 g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
486 g_file_info_set_file_type (info, G_FILE_TYPE_REGULAR);
487 g_file_info_set_size (info, size);
489 if ((_g_file_attribute_matcher_matches_id (matcher, G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE) ||
490 ((~resource_flags & G_RESOURCE_FLAGS_COMPRESSED) &&
491 _g_file_attribute_matcher_matches_id (matcher, G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE))) &&
492 (bytes = g_resources_lookup_data (resource->path, 0, NULL)))
497 data = g_bytes_get_data (bytes, &data_size);
498 content_type = g_content_type_guess (base, data, data_size, NULL);
500 g_bytes_unref (bytes);
507 _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE, content_type);
508 _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE, content_type);
510 g_free (content_type);
515 g_file_attribute_matcher_unref (matcher);
520 static GFileAttributeInfoList *
521 g_resource_file_query_settable_attributes (GFile *file,
522 GCancellable *cancellable,
525 return g_file_attribute_info_list_ref (resource_writable_attributes);
528 static GFileAttributeInfoList *
529 g_resource_file_query_writable_namespaces (GFile *file,
530 GCancellable *cancellable,
533 return g_file_attribute_info_list_ref (resource_writable_namespaces);
536 static GFileInputStream *
537 g_resource_file_read (GFile *file,
538 GCancellable *cancellable,
541 GResourceFile *resource = G_RESOURCE_FILE (file);
542 GError *my_error = NULL;
543 GInputStream *stream;
544 GFileInputStream *res;
546 stream = g_resources_open_stream (resource->path, 0, &my_error);
550 if (g_error_matches (my_error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND))
552 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
553 _("The resource at '%s' does not exist"),
557 g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
560 g_clear_error (&my_error);
564 res = _g_resource_file_input_stream_new (stream, file);
565 g_object_unref (stream);
570 g_resource_file_file_iface_init (GFileIface *iface)
572 iface->dup = g_resource_file_dup;
573 iface->hash = g_resource_file_hash;
574 iface->equal = g_resource_file_equal;
575 iface->is_native = g_resource_file_is_native;
576 iface->has_uri_scheme = g_resource_file_has_uri_scheme;
577 iface->get_uri_scheme = g_resource_file_get_uri_scheme;
578 iface->get_basename = g_resource_file_get_basename;
579 iface->get_path = g_resource_file_get_path;
580 iface->get_uri = g_resource_file_get_uri;
581 iface->get_parse_name = g_resource_file_get_parse_name;
582 iface->get_parent = g_resource_file_get_parent;
583 iface->prefix_matches = g_resource_file_prefix_matches;
584 iface->get_relative_path = g_resource_file_get_relative_path;
585 iface->resolve_relative_path = g_resource_file_resolve_relative_path;
586 iface->get_child_for_display_name = g_resource_file_get_child_for_display_name;
587 iface->enumerate_children = g_resource_file_enumerate_children;
588 iface->query_info = g_resource_file_query_info;
589 iface->query_settable_attributes = g_resource_file_query_settable_attributes;
590 iface->query_writable_namespaces = g_resource_file_query_writable_namespaces;
591 iface->read_fn = g_resource_file_read;
593 iface->supports_thread_contexts = TRUE;
596 static GFileInfo *g_resource_file_enumerator_next_file (GFileEnumerator *enumerator,
597 GCancellable *cancellable,
599 static gboolean g_resource_file_enumerator_close (GFileEnumerator *enumerator,
600 GCancellable *cancellable,
604 g_resource_file_enumerator_finalize (GObject *object)
606 GResourceFileEnumerator *resource;
608 resource = G_RESOURCE_FILE_ENUMERATOR (object);
610 g_strfreev (resource->children);
611 g_free (resource->path);
612 g_free (resource->attributes);
614 G_OBJECT_CLASS (g_resource_file_enumerator_parent_class)->finalize (object);
618 g_resource_file_enumerator_class_init (GResourceFileEnumeratorClass *klass)
620 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
621 GFileEnumeratorClass *enumerator_class = G_FILE_ENUMERATOR_CLASS (klass);
623 gobject_class->finalize = g_resource_file_enumerator_finalize;
625 enumerator_class->next_file = g_resource_file_enumerator_next_file;
626 enumerator_class->close_fn = g_resource_file_enumerator_close;
630 g_resource_file_enumerator_init (GResourceFileEnumerator *resource)
634 static GFileEnumerator *
635 _g_resource_file_enumerator_new (GResourceFile *file,
636 const char *attributes,
637 GFileQueryInfoFlags flags,
638 GCancellable *cancellable,
641 GResourceFileEnumerator *resource;
645 children = g_resources_enumerate_children (file->path, 0, NULL);
646 if (children == NULL &&
647 strcmp ("/", file->path) != 0)
649 res = g_resources_get_info (file->path, 0, NULL, NULL, NULL);
651 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_DIRECTORY,
652 _("The resource at '%s' is not a directory"),
655 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
656 _("The resource at '%s' does not exist"),
661 resource = g_object_new (G_TYPE_RESOURCE_FILE_ENUMERATOR,
665 resource->children = children;
666 resource->path = g_strdup (file->path);
667 resource->attributes = g_strdup (attributes);
668 resource->flags = flags;
670 return G_FILE_ENUMERATOR (resource);
674 g_resource_file_enumerator_next_file (GFileEnumerator *enumerator,
675 GCancellable *cancellable,
678 GResourceFileEnumerator *resource = G_RESOURCE_FILE_ENUMERATOR (enumerator);
683 if (resource->children == NULL ||
684 resource->children[resource->index] == NULL)
687 path = g_build_path ("/", resource->path, resource->children[resource->index++], NULL);
688 file = g_resource_file_new_for_path (path);
691 info = g_file_query_info (file,
692 resource->attributes,
697 g_object_unref (file);
703 g_resource_file_enumerator_close (GFileEnumerator *enumerator,
704 GCancellable *cancellable,
711 struct _GResourceFileInputStream
713 GFileInputStream parent_instance;
714 GInputStream *stream;
718 struct _GResourceFileInputStreamClass
720 GFileInputStreamClass parent_class;
723 #define g_resource_file_input_stream_get_type _g_resource_file_input_stream_get_type
724 G_DEFINE_TYPE (GResourceFileInputStream, g_resource_file_input_stream, G_TYPE_FILE_INPUT_STREAM);
726 static gssize g_resource_file_input_stream_read (GInputStream *stream,
729 GCancellable *cancellable,
731 static gssize g_resource_file_input_stream_skip (GInputStream *stream,
733 GCancellable *cancellable,
735 static gboolean g_resource_file_input_stream_close (GInputStream *stream,
736 GCancellable *cancellable,
738 static goffset g_resource_file_input_stream_tell (GFileInputStream *stream);
739 static gboolean g_resource_file_input_stream_can_seek (GFileInputStream *stream);
740 static gboolean g_resource_file_input_stream_seek (GFileInputStream *stream,
743 GCancellable *cancellable,
745 static GFileInfo *g_resource_file_input_stream_query_info (GFileInputStream *stream,
746 const char *attributes,
747 GCancellable *cancellable,
751 g_resource_file_input_stream_finalize (GObject *object)
753 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (object);
755 g_object_unref (file->stream);
756 g_object_unref (file->file);
757 G_OBJECT_CLASS (g_resource_file_input_stream_parent_class)->finalize (object);
761 g_resource_file_input_stream_class_init (GResourceFileInputStreamClass *klass)
763 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
764 GInputStreamClass *stream_class = G_INPUT_STREAM_CLASS (klass);
765 GFileInputStreamClass *file_stream_class = G_FILE_INPUT_STREAM_CLASS (klass);
767 gobject_class->finalize = g_resource_file_input_stream_finalize;
769 stream_class->read_fn = g_resource_file_input_stream_read;
770 stream_class->skip = g_resource_file_input_stream_skip;
771 stream_class->close_fn = g_resource_file_input_stream_close;
772 file_stream_class->tell = g_resource_file_input_stream_tell;
773 file_stream_class->can_seek = g_resource_file_input_stream_can_seek;
774 file_stream_class->seek = g_resource_file_input_stream_seek;
775 file_stream_class->query_info = g_resource_file_input_stream_query_info;
779 g_resource_file_input_stream_init (GResourceFileInputStream *info)
783 static GFileInputStream *
784 _g_resource_file_input_stream_new (GInputStream *in_stream, GFile *file)
786 GResourceFileInputStream *stream;
788 stream = g_object_new (G_TYPE_RESOURCE_FILE_INPUT_STREAM, NULL);
789 stream->stream = g_object_ref (in_stream);
790 stream->file = g_object_ref (file);
792 return G_FILE_INPUT_STREAM (stream);
796 g_resource_file_input_stream_read (GInputStream *stream,
799 GCancellable *cancellable,
802 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
803 return g_input_stream_read (file->stream,
804 buffer, count, cancellable, error);
808 g_resource_file_input_stream_skip (GInputStream *stream,
810 GCancellable *cancellable,
813 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
814 return g_input_stream_skip (file->stream,
815 count, cancellable, error);
819 g_resource_file_input_stream_close (GInputStream *stream,
820 GCancellable *cancellable,
823 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
824 return g_input_stream_close (file->stream,
830 g_resource_file_input_stream_tell (GFileInputStream *stream)
832 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);;
834 if (!G_IS_SEEKABLE (file->stream));
837 return g_seekable_tell (G_SEEKABLE (file->stream));
841 g_resource_file_input_stream_can_seek (GFileInputStream *stream)
843 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
845 return G_IS_SEEKABLE (file->stream) && g_seekable_can_seek (G_SEEKABLE (file->stream));
849 g_resource_file_input_stream_seek (GFileInputStream *stream,
852 GCancellable *cancellable,
855 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
857 if (!G_IS_SEEKABLE (file->stream))
859 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
860 _("Input stream doesn't implement seek"));
864 return g_seekable_seek (G_SEEKABLE (file->stream),
865 offset, type, cancellable, error);
869 g_resource_file_input_stream_query_info (GFileInputStream *stream,
870 const char *attributes,
871 GCancellable *cancellable,
874 GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
876 return g_file_query_info (file->file, attributes, 0, cancellable, error);