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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>GVfs: GIO Reference Manual</title>
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<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
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<link rel="home" href="index.html" title="GIO Reference Manual">
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<link rel="up" href="extending.html" title="Extending GIO">
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<link rel="prev" href="extending.html" title="Extending GIO">
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<link rel="next" href="GIOModule.html" title="GIOModule">
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<meta name="generator" content="GTK-Doc V1.27 (XML mode)">
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<link rel="stylesheet" href="style.css" type="text/css">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Top |
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Description |
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Object Hierarchy
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GVfs
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GVfs — Virtual File System
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Functions
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GFile *
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(*GVfsFileLookupFunc) ()
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GFile *
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g_vfs_get_file_for_path ()
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GFile *
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g_vfs_get_file_for_uri ()
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GFile *
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g_vfs_parse_name ()
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GVfs *
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g_vfs_get_default ()
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GVfs *
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g_vfs_get_local ()
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gboolean
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g_vfs_is_active ()
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const gchar * const *
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g_vfs_get_supported_uri_schemes ()
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gboolean
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g_vfs_register_uri_scheme ()
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gboolean
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g_vfs_unregister_uri_scheme ()
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Types and Values
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GVfs
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#define
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G_VFS_EXTENSION_POINT_NAME
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Object Hierarchy
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GObject
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╰── GVfs
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Includes
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#include <gio/gio.h>
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Description
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Entry point for using GIO functionality.
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Functions
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GVfsFileLookupFunc ()
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GFile *
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(*GVfsFileLookupFunc) (GVfs *vfs,
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const char *identifier,
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gpointer user_data);
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This function type is used by g_vfs_register_uri_scheme() to make it
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possible for a client to associate an URI scheme to a different GFile
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implementation.
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The client should return a reference to the new file that has been
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created for uri
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, or NULL to continue with the default implementation.
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Parameters
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vfs
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a GVfs
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identifier
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the identifier to lookup a GFile for. This can either
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be an URI or a parse name as returned by g_file_get_parse_name()
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user_data
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user data passed to the function
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Returns
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a GFile for identifier
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.
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[transfer full]
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Since: 2.50
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g_vfs_get_file_for_path ()
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GFile *
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g_vfs_get_file_for_path (GVfs *vfs,
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const char *path);
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Gets a GFile for path
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Parameters
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vfs
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a GVfs.
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path
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a string containing a VFS path.
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Returns
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a GFile.
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Free the returned object with g_object_unref().
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[transfer full]
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g_vfs_get_file_for_uri ()
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GFile *
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g_vfs_get_file_for_uri (GVfs *vfs,
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const char *uri);
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Gets a GFile for uri
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This operation never fails, but the returned object
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might not support any I/O operation if the URI
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is malformed or if the URI scheme is not supported.
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Parameters
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vfs
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aGVfs.
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uri
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a string containing a URI
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Returns
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a GFile.
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Free the returned object with g_object_unref().
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[transfer full]
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g_vfs_parse_name ()
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GFile *
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g_vfs_parse_name (GVfs *vfs,
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const char *parse_name);
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This operation never fails, but the returned object might
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not support any I/O operations if the parse_name
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cannot
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be parsed by the GVfs module.
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Parameters
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vfs
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a GVfs.
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parse_name
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a string to be parsed by the VFS module.
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Returns
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a GFile for the given parse_name
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.
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Free the returned object with g_object_unref().
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[transfer full]
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g_vfs_get_default ()
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GVfs *
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g_vfs_get_default (void);
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Gets the default GVfs for the system.
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Returns
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a GVfs.
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[transfer none]
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g_vfs_get_local ()
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GVfs *
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g_vfs_get_local (void);
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Gets the local GVfs for the system.
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Returns
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a GVfs.
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[transfer none]
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g_vfs_is_active ()
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gboolean
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g_vfs_is_active (GVfs *vfs);
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Checks if the VFS is active.
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Parameters
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vfs
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a GVfs.
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Returns
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TRUE if construction of the vfs
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was successful
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and it is now active.
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g_vfs_get_supported_uri_schemes ()
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const gchar * const *
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g_vfs_get_supported_uri_schemes (GVfs *vfs);
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Gets a list of URI schemes supported by vfs
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.
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Parameters
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vfs
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a GVfs.
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Returns
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a NULL-terminated array of strings.
|
|
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The returned array belongs to GIO and must
|
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not be freed or modified.
|
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[transfer none]
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ae235b |
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ae235b |
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ae235b |
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g_vfs_register_uri_scheme ()
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gboolean
|
|
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g_vfs_register_uri_scheme (GVfs *vfs,
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const char *scheme,
|
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GVfsFileLookupFunc uri_func,
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gpointer uri_data,
|
|
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ae235b |
GDestroyNotify uri_destroy,
|
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ae235b |
GVfsFileLookupFunc parse_name_func,
|
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gpointer parse_name_data,
|
|
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GDestroyNotify parse_name_destroy);
|
|
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ae235b |
Registers uri_func
|
|
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and parse_name_func
|
|
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as the GFile URI and parse name
|
|
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ae235b |
lookup functions for URIs with a scheme matching scheme
|
|
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.
|
|
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Note that scheme
|
|
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is registered only within the running application, as
|
|
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opposed to desktop-wide as it happens with GVfs backends.
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ae235b |
When a GFile is requested with an URI containing scheme
|
|
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(e.g. through
|
|
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ae235b |
g_file_new_for_uri()), uri_func
|
|
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will be called to allow a custom
|
|
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ae235b |
constructor. The implementation of uri_func
|
|
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should not be blocking, and
|
|
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ae235b |
must not call g_vfs_register_uri_scheme() or g_vfs_unregister_uri_scheme().
|
|
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When g_file_parse_name() is called with a parse name obtained from such file,
|
|
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parse_name_func
|
|
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ae235b |
will be called to allow the GFile to be created again. In
|
|
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ae235b |
that case, it's responsibility of parse_name_func
|
|
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ae235b |
to make sure the parse
|
|
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ae235b |
name matches what the custom GFile implementation returned when
|
|
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g_file_get_parse_name() was previously called. The implementation of
|
|
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parse_name_func
|
|
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ae235b |
should not be blocking, and must not call
|
|
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ae235b |
g_vfs_register_uri_scheme() or g_vfs_unregister_uri_scheme().
|
|
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It's an error to call this function twice with the same scheme. To unregister
|
|
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a custom URI scheme, use g_vfs_unregister_uri_scheme().
|
|
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|
|
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ae235b |
Parameters
|
|
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ae235b |
|
|
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ae235b |
|
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ae235b |
|
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Packit |
ae235b |
|
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Packit |
ae235b |
|
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Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
|
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ae235b |
vfs
|
|
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ae235b |
a GVfs
|
|
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ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
|
|
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ae235b |
scheme
|
|
Packit |
ae235b |
an URI scheme, e.g. "http"
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
uri_func
|
|
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ae235b |
a GVfsFileLookupFunc.
|
|
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ae235b |
[scope notified][nullable]
|
|
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ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
uri_data
|
|
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custom data passed to be passed to uri_func
|
|
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, or NULL.
|
|
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ae235b |
[nullable]
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
uri_destroy
|
|
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ae235b |
function to be called when unregistering the
|
|
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ae235b |
URI scheme, or when vfs
|
|
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ae235b |
is disposed, to free the resources used
|
|
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ae235b |
by the URI lookup function.
|
|
Packit |
ae235b |
[nullable]
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
parse_name_func
|
|
Packit |
ae235b |
a GVfsFileLookupFunc.
|
|
Packit |
ae235b |
[scope notified][nullable]
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
parse_name_data
|
|
Packit |
ae235b |
custom data passed to be passed to
|
|
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ae235b |
parse_name_func
|
|
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ae235b |
, or NULL.
|
|
Packit |
ae235b |
[nullable]
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
parse_name_destroy
|
|
Packit |
ae235b |
function to be called when unregistering the
|
|
Packit |
ae235b |
URI scheme, or when vfs
|
|
Packit |
ae235b |
is disposed, to free the resources used
|
|
Packit |
ae235b |
by the parse name lookup function.
|
|
Packit |
ae235b |
[nullable]
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
|
|
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ae235b |
Returns
|
|
Packit |
ae235b |
TRUE if scheme
|
|
Packit |
ae235b |
was successfully registered, or FALSE if a handler
|
|
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ae235b |
for scheme
|
|
Packit |
ae235b |
already exists.
|
|
Packit |
ae235b |
|
|
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ae235b |
Since: 2.50
|
|
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ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
|
|
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ae235b |
g_vfs_unregister_uri_scheme ()
|
|
Packit |
ae235b |
gboolean
|
|
Packit |
ae235b |
g_vfs_unregister_uri_scheme (GVfs *vfs,
|
|
Packit |
ae235b |
const char *scheme);
|
|
Packit |
ae235b |
Unregisters the URI handler for scheme
|
|
Packit |
ae235b |
previously registered with
|
|
Packit |
ae235b |
g_vfs_register_uri_scheme().
|
|
Packit |
ae235b |
|
|
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ae235b |
Parameters
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
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ae235b |
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
vfs
|
|
Packit |
ae235b |
a GVfs
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
scheme
|
|
Packit |
ae235b |
an URI scheme, e.g. "http"
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
Returns
|
|
Packit |
ae235b |
TRUE if scheme
|
|
Packit |
ae235b |
was successfully unregistered, or FALSE if a
|
|
Packit |
ae235b |
handler for scheme
|
|
Packit |
ae235b |
does not exist.
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
Since: 2.50
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
Types and Values
|
|
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ae235b |
|
|
Packit |
ae235b |
GVfs
|
|
Packit |
ae235b |
typedef struct _GVfs GVfs;
|
|
Packit |
ae235b |
Virtual File System object.
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
|
Packit |
ae235b |
G_VFS_EXTENSION_POINT_NAME
|
|
Packit |
ae235b |
#define G_VFS_EXTENSION_POINT_NAME "gio-vfs"
|
|
Packit |
ae235b |
|
|
Packit |
ae235b |
Extension point for GVfs functionality.
|
|
Packit |
ae235b |
See Extending GIO.
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
|
|
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ae235b |
Generated by GTK-Doc V1.27
|
|
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ae235b |
</body>
|
|
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ae235b |
</html>
|