+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
/**
* SECTION:gfile
* @short_description: File and Directory Handling
- * @include: gio.h
+ * @include: gio/gio.h
* @see_also: #GFileInfo, #GFileEnumerator
*
* #GFile is a high level abstraction for manipulating files on a
* virtual file system. #GFile<!-- -->s are lightweight, immutable
* objects that do no I/O upon creation. It is necessary to understand that
- * #GFile objects do not represent files, merely a handle to a file. All
- * file I/O is implemented as streaming operations (see #GInputStream and
+ * #GFile objects do not represent files, merely an identifier for a file. All
+ * file content I/O is implemented as streaming operations (see #GInputStream and
* #GOutputStream).
- *
+ *
* To construct a #GFile, you can use:
* g_file_new_for_path() if you have a path.
* g_file_new_for_uri() if you have a URI.
* g_file_new_for_commandline_arg() for a command line argument.
- *
- * You can move through the file system with #GFile handles with
- * g_file_get_parent() to get a handle to the parent directory.
- * g_file_get_child() to get a handle to a child within a directory.
- * g_file_resolve_relative_path() to resolve a relative path between
- * two #GFile<!-- -->s.
+ * g_file_parse_name() from a utf8 string gotten from g_file_get_parse_name().
+ *
+ * One way to think of a #GFile is as an abstraction of a pathname. For normal
+ * files the system pathname is what is stored internally, but as #GFile<!-- -->s
+ * are extensible it could also be something else that corresponds to a pathname
+ * in a userspace implementation of a filesystem.
+ *
+ * #GFile<!-- -->s make up hierarchies of directories and files that correspond to the
+ * files on a filesystem. You can move through the file system with #GFile using
+ * g_file_get_parent() to get an identifier for the parent directory, g_file_get_child()
+ * to get a child within a directory, g_file_resolve_relative_path() to resolve a relative
+ * path between two #GFile<!-- -->s. There can be multiple hierarchies, so you may not
+ * end up at the same root if you repeatedly call g_file_get_parent() on two different
+ * files.
+ *
+ * All #GFile<!-- -->s have a basename (get with g_file_get_basename()). These names
+ * are byte strings that are used to identify the file on the filesystem (relative to
+ * its parent directory) and there is no guarantees that they have any particular charset
+ * encoding or even make any sense at all. If you want to use filenames in a user
+ * interface you should use the display name that you can get by requesting the
+ * %G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME attribute with g_file_query_info().
+ * This is guaranteed to be in utf8 and can be used in a user interface. But always
+ * store the real basename or the #GFile to use to actually access the file, because
+ * there is no way to go from a display name to the actual name.
+ *
+ * Using #GFile as an identifier has the same weaknesses as using a path in that
+ * there may be multiple aliases for the same file. For instance, hard or
+ * soft links may cause two different #GFile<!-- -->s to refer to the same file.
+ * Other possible causes for aliases are: case insensitive filesystems, short
+ * and long names on Fat/NTFS, or bind mounts in linux. If you want to check if
+ * two #GFile<!-- -->s point to the same file you can query for the
+ * %G_FILE_ATTRIBUTE_ID_FILE attribute. Note that #GFile does some trivial
+ * canonicalization of pathnames passed in, so that trivial differences in the
+ * path string used at creation (dupplicated slashes, slash at end of path, "."
+ * or ".." path segments, etc) does not create different #GFile<!-- -->s.
*
* Many #GFile operations have both synchronous and asynchronous versions
* to suit your application. Asynchronous versions of synchronous functions
static void g_file_class_init (gpointer g_class,
gpointer class_data);
-static void g_file_real_query_info_async (GFile *file,
- const char *attributes,
- GFileQueryInfoFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileInfo * g_file_real_query_info_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_enumerate_children_async (GFile *file,
- const char *attributes,
- GFileQueryInfoFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileEnumerator * g_file_real_enumerate_children_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_read_async (GFile *file,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileInputStream * g_file_real_read_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_append_to_async (GFile *file,
- GFileCreateFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileOutputStream *g_file_real_append_to_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_create_async (GFile *file,
- GFileCreateFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileOutputStream *g_file_real_create_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_replace_async (GFile *file,
- const char *etag,
- gboolean make_backup,
- GFileCreateFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFileOutputStream *g_file_real_replace_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static gboolean g_file_real_set_attributes_from_info (GFile *file,
- GFileInfo *info,
- GFileQueryInfoFlags flags,
- GCancellable *cancellable,
- GError **error);
-static void g_file_real_set_display_name_async (GFile *file,
- const char *display_name,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static GFile * g_file_real_set_display_name_finish (GFile *file,
- GAsyncResult *res,
- GError **error);
-static void g_file_real_set_attributes_async (GFile *file,
- GFileInfo *info,
- GFileQueryInfoFlags flags,
- int io_priority,
- GCancellable *cancellable,
- GAsyncReadyCallback callback,
- gpointer user_data);
-static gboolean g_file_real_set_attributes_finish (GFile *file,
- GAsyncResult *res,
- GFileInfo **info,
- GError **error);
+static void g_file_real_query_info_async (GFile *file,
+ const char *attributes,
+ GFileQueryInfoFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileInfo * g_file_real_query_info_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_query_filesystem_info_async (GFile *file,
+ const char *attributes,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileInfo * g_file_real_query_filesystem_info_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_enumerate_children_async (GFile *file,
+ const char *attributes,
+ GFileQueryInfoFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileEnumerator * g_file_real_enumerate_children_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_read_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileInputStream * g_file_real_read_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_append_to_async (GFile *file,
+ GFileCreateFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileOutputStream *g_file_real_append_to_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_create_async (GFile *file,
+ GFileCreateFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileOutputStream *g_file_real_create_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_replace_async (GFile *file,
+ const char *etag,
+ gboolean make_backup,
+ GFileCreateFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFileOutputStream *g_file_real_replace_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static gboolean g_file_real_set_attributes_from_info (GFile *file,
+ GFileInfo *info,
+ GFileQueryInfoFlags flags,
+ GCancellable *cancellable,
+ GError **error);
+static void g_file_real_set_display_name_async (GFile *file,
+ const char *display_name,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GFile * g_file_real_set_display_name_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_set_attributes_async (GFile *file,
+ GFileInfo *info,
+ GFileQueryInfoFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static gboolean g_file_real_set_attributes_finish (GFile *file,
+ GAsyncResult *res,
+ GFileInfo **info,
+ GError **error);
+static void g_file_real_find_enclosing_mount_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static GMount * g_file_real_find_enclosing_mount_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_copy_async (GFile *source,
+ GFile *destination,
+ GFileCopyFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GFileProgressCallback progress_callback,
+ gpointer progress_callback_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static gboolean g_file_real_copy_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
GType
g_file_get_type (void)
iface->set_display_name_finish = g_file_real_set_display_name_finish;
iface->query_info_async = g_file_real_query_info_async;
iface->query_info_finish = g_file_real_query_info_finish;
+ iface->query_filesystem_info_async = g_file_real_query_filesystem_info_async;
+ iface->query_filesystem_info_finish = g_file_real_query_filesystem_info_finish;
iface->set_attributes_async = g_file_real_set_attributes_async;
iface->set_attributes_finish = g_file_real_set_attributes_finish;
iface->read_async = g_file_real_read_async;
iface->create_finish = g_file_real_create_finish;
iface->replace_async = g_file_real_replace_async;
iface->replace_finish = g_file_real_replace_finish;
+ iface->find_enclosing_mount_async = g_file_real_find_enclosing_mount_async;
+ iface->find_enclosing_mount_finish = g_file_real_find_enclosing_mount_finish;
iface->set_attributes_from_info = g_file_real_set_attributes_from_info;
+ iface->copy_async = g_file_real_copy_async;
+ iface->copy_finish = g_file_real_copy_finish;
}
static void
* Gets the base name (the last component of the path) for a given #GFile.
*
* If called for the top level of a system (such as the filesystem root
- * or a uri like sftp://host/ it will return a single directory separator
+ * or a uri like sftp://host/) it will return a single directory separator
* (and on Windows, possibly a drive letter).
*
+ * The base name is a byte string (*not* UTF-8). It has no defined encoding
+ * or rules other than it may not contain zero bytes. If you want to use
+ * filenames in a user interface you should use the display name that you
+ * can get by requesting the %G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME
+ * attribute with g_file_query_info().
+ *
* This call does no blocking i/o.
*
* Returns: string containing the #GFile's base name, or %NULL
* g_file_parse_name().
*
* This is generally used to show the #GFile as a nice
- * string in a user interface, like in a location entry.
+ * full-pathname kind of string in a user interface,
+ * like in a location entry.
*
* For local files with names that can safely be converted
* to UTF8 the pathname is used, otherwise the IRI is used
* @file1: the first #GFile.
* @file2: the second #GFile.
*
- * Checks equality of two given #GFile<!-- -->s
+ * Checks equality of two given #GFile<!-- -->s. Note that two
+ * #GFile<!-- -->s that differ can still refer to the same
+ * file on the filesystem due to various forms of filename
+ * aliasing.
*
* This call does no blocking i/o.
*
/**
* g_file_get_child:
* @file: input #GFile.
- * @name: string containing the child's name.
+ * @name: string containing the child's basename.
*
- * Gets a specific child of @file with name equal to @name.
+ * Gets a child of @file with basename equal to @name.
*
* Note that the file with that specific name might not exist, but
* you can still have a #GFile that points to it. You can use this
}
/**
- * g_file_contains_file:
- * @parent: input #GFile.
- * @descendant: input #GFile.
- *
- * Checks whether @parent (recursively) contains the specified @descendant.
+ * g_file_has_prefix:
+ * @file: input #GFile.
+ * @prefix: input #GFile.
*
- * This call does no blocking i/o.
+ * Checks whether @file has the prefix specified by @prefix. In other word, if the
+ * names of inital elements of @file<!-- -->s pathname match @prefix.
*
- * Returns: %TRUE if the @descendant's parent, grandparent, etc is @parent. %FALSE otherwise.
+ * This call does no i/o, as it works purely on names. As such it can sometimes
+ * return %FALSE even if @file is inside a @prefix (from a filesystem point of view),
+ * because the prefix of @file is an alias of @prefix.
+ *
+ * Returns: %TRUE if the @files's parent, grandparent, etc is @prefix. %FALSE otherwise.
**/
gboolean
-g_file_contains_file (GFile *parent,
- GFile *descendant)
+g_file_has_prefix (GFile *file,
+ GFile *prefix)
{
GFileIface *iface;
- g_return_val_if_fail (G_IS_FILE (parent), FALSE);
- g_return_val_if_fail (G_IS_FILE (descendant), FALSE);
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (G_IS_FILE (prefix), FALSE);
- if (G_TYPE_FROM_INSTANCE (parent) != G_TYPE_FROM_INSTANCE (descendant))
+ if (G_TYPE_FROM_INSTANCE (file) != G_TYPE_FROM_INSTANCE (prefix))
return FALSE;
- iface = G_FILE_GET_IFACE (parent);
+ iface = G_FILE_GET_IFACE (file);
- return (* iface->contains_file) (parent, descendant);
+ /* The vtable function differs in arg order since we're
+ using the old contains_file call */
+ return (* iface->prefix_matches) (prefix, file);
}
/**
* This call does no blocking i/o.
*
* Returns: string with the relative path from @descendant
- * to @parent, or %NULL if @descendant is not a descendant of @parent. The returned string should be freed with
+ * to @parent, or %NULL if @descendant doesn't have @parent as prefix. The returned string should be freed with
* g_free() when no longer needed.
**/
char *
* Utility function to check if a particular file exists. This is
* implemented using g_file_query_info() and as such does blocking I/O.
*
- * Note that in many cases it is racy to first check for file existance
+ * Note that in many cases it is racy to first check for file existence
* and then execute something based on the outcome of that, because the
- * file might have been created or removed inbetween the operations. The
+ * file might have been created or removed in between the operations. The
* general approach to handling that is to not check, but just do the
* operation and handle the errors as they come.
*
- * As an example of race-free checking. Take the case of reading a file, and
- * if it doesn't exist, create it. There are two racy versions: read it, and
+ * As an example of race-free checking, take the case of reading a file, and
+ * if it doesn't exist, creating it. There are two racy versions: read it, and
* on error create it; and: check if it exists, if not create it. These
* can both result in two processes creating the file (with perhaps a partially
* written file as the result). The correct approach is to always try to create
* the file with g_file_create() which will either atomically create the file
- * or fail with an G_IO_ERROR_EXISTS error.
+ * or fail with a G_IO_ERROR_EXISTS error.
*
- * However, in many cases an existance check is useful in a user
+ * However, in many cases an existence check is useful in a user
* interface, for instance to make a menu item sensitive/insensitive, so that
* you don't have to fool users that something is possible and then just show
* and error dialog. If you do this, you should make sure to also handle the
GCancellable *cancellable)
{
GFileInfo *info;
-
+
+ g_return_val_if_fail (G_IS_FILE(file), FALSE);
+
info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_TYPE,
G_FILE_QUERY_INFO_NONE,
cancellable, NULL);
* @error: a #GError.
*
* Gets the requested information about specified @file. The result
- * is a #GFileInfo objects that contains key-value attributes (like type or size
- * for the file.
+ * is a #GFileInfo object that contains key-value attributes (such as
+ * the type or size of the file).
*
* The @attribute value is a string that specifies the file attributes that
* should be gathered. It is not an error if it's not possible to read a particular
* symlink is returned, rather than information about the symlink itself.
* However if you pass #G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS in @flags the
* information about the symlink itself will be returned. Also, for symlinks
- * that points to non-existing files the information about the symlink itself
+ * that point to non-existing files the information about the symlink itself
* will be returned.
*
* If the file does not exist, the G_IO_ERROR_NOT_FOUND error will be returned.
* @user_data: the data to pass to callback function
*
* Asynchronously gets the requested information about specified @file. The result
- * is a #GFileInfo objects that contains key-value attributes (such as type or size
+ * is a #GFileInfo object that contains key-value attributes (such as type or size
* for the file).
*
* For more details, see g_file_query_info() which is
}
/**
+ * g_file_query_filesystem_info_async:
+ * @file: input #GFile.
+ * @attributes: an attribute query string.
+ * @io_priority: the <link linkend="io-priority">I/O priority</link>
+ * of the request.
+ * @cancellable: optional #GCancellable object, %NULL to ignore.
+ * @callback: a #GAsyncReadyCallback to call when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Asynchronously gets the requested information about the filesystem
+ * that the specified @file is on. The result is a #GFileInfo object
+ * that contains key-value attributes (such as type or size for the
+ * file).
+ *
+ * For more details, see g_file_query_filesystem_info() which is the
+ * synchronous version of this call.
+ *
+ * When the operation is finished, @callback will be called. You can
+ * then call g_file_query_info_finish() to get the result of the
+ * operation.
+ **/
+void
+g_file_query_filesystem_info_async (GFile *file,
+ const char *attributes,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GFileIface *iface;
+
+ g_return_if_fail (G_IS_FILE (file));
+
+ iface = G_FILE_GET_IFACE (file);
+ (* iface->query_filesystem_info_async) (file,
+ attributes,
+ io_priority,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * g_file_query_filesystem_info_finish:
+ * @file: input #GFile.
+ * @res: a #GAsyncResult.
+ * @error: a #GError.
+ *
+ * Finishes an asynchronous filesystem info query. See
+ * g_file_query_filesystem_info_async().
+ *
+ * Returns: #GFileInfo for given @file or %NULL on error.
+ **/
+GFileInfo *
+g_file_query_filesystem_info_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ GFileIface *iface;
+
+ g_return_val_if_fail (G_IS_FILE (file), NULL);
+ g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
+
+ if (G_IS_SIMPLE_ASYNC_RESULT (res))
+ {
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
+ if (g_simple_async_result_propagate_error (simple, error))
+ return NULL;
+ }
+
+ iface = G_FILE_GET_IFACE (file);
+ return (* iface->query_filesystem_info_finish) (file, res, error);
+}
+
+/**
* g_file_find_enclosing_mount:
* @file: input #GFile.
* @cancellable: optional #GCancellable object, %NULL to ignore.
GFileIface *iface;
g_return_val_if_fail (G_IS_FILE (file), NULL);
-
+
if (g_cancellable_set_error_if_cancelled (cancellable, error))
return NULL;
iface = G_FILE_GET_IFACE (file);
if (iface->find_enclosing_mount == NULL)
{
- g_set_error (error, G_IO_ERROR,
- G_IO_ERROR_NOT_FOUND,
+
+ g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
+ /* Translators: This is an error message when trying to find the
+ * enclosing (user visible) mount of a file, but none exists. */
_("Containing mount does not exist"));
return NULL;
}
-
+
return (* iface->find_enclosing_mount) (file, cancellable, error);
}
+/**
+ * g_file_find_enclosing_mount_async:
+ * @file: a #GFile
+ * @io_priority: the <link linkend="io-priority">I/O priority</link>
+ * of the request.
+ * @cancellable: optional #GCancellable object, %NULL to ignore.
+ * @callback: a #GAsyncReadyCallback to call when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Asynchronously gets the mount for the file.
+ *
+ * For more details, see g_file_find_enclosing_mount() which is
+ * the synchronous version of this call.
+ *
+ * When the operation is finished, @callback will be called. You can then call
+ * g_file_find_enclosing_mount_finish() to get the result of the operation.
+ */
+void
+g_file_find_enclosing_mount_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GFileIface *iface;
+
+ g_return_if_fail (G_IS_FILE (file));
+
+ iface = G_FILE_GET_IFACE (file);
+ (* iface->find_enclosing_mount_async) (file,
+ io_priority,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * g_file_find_enclosing_mount_finish:
+ * @file: a #GFile
+ * @res: a #GAsyncResult
+ * @error: a #GError
+ *
+ * Finishes an asynchronous find mount request.
+ * See g_file_find_enclosing_mount_async().
+ *
+ * Returns: #GMount for given @file or %NULL on error.
+ **/
+GMount *
+g_file_find_enclosing_mount_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ GFileIface *iface;
+
+ g_return_val_if_fail (G_IS_FILE (file), NULL);
+ g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
+
+ if (G_IS_SIMPLE_ASYNC_RESULT (res))
+ {
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
+ if (g_simple_async_result_propagate_error (simple, error))
+ return NULL;
+ }
+
+ iface = G_FILE_GET_IFACE (file);
+ return (* iface->find_enclosing_mount_finish) (file, res, error);
+}
+
/**
* g_file_read:
* triggering the cancellable object from another thread. If the operation
* was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
*
- * If a file with this name already exists the G_IO_ERROR_EXISTS error
- * will be returned. If the file is a directory the G_IO_ERROR_IS_DIRECTORY
+ * If a file or directory with this name already exists the G_IO_ERROR_EXISTS
* error will be returned.
* Some file systems don't allow all file names, and may
* return an G_IO_ERROR_INVALID_FILENAME error, and if the name
static gboolean
copy_stream_with_progress (GInputStream *in,
GOutputStream *out,
+ GFile *source,
GCancellable *cancellable,
GFileProgressCallback progress_callback,
gpointer progress_callback_data,
{
gssize n_read, n_written;
goffset current_size;
- char buffer[8192], *p;
+ char buffer[1024*64], *p;
gboolean res;
goffset total_size;
GFileInfo *info;
- total_size = 0;
+ total_size = -1;
info = g_file_input_stream_query_info (G_FILE_INPUT_STREAM (in),
G_FILE_ATTRIBUTE_STANDARD_SIZE,
cancellable, NULL);
if (info)
{
- total_size = g_file_info_get_size (info);
+ if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
+ total_size = g_file_info_get_size (info);
g_object_unref (info);
}
+
+ if (total_size == -1)
+ {
+ info = g_file_query_info (source,
+ G_FILE_ATTRIBUTE_STANDARD_SIZE,
+ G_FILE_QUERY_INFO_NONE,
+ cancellable, NULL);
+ if (info)
+ {
+ if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
+ total_size = g_file_info_get_size (info);
+ g_object_unref (info);
+ }
+ }
+
+ if (total_size == -1)
+ total_size = 0;
current_size = 0;
res = TRUE;
if (!res)
break;
-
+
if (progress_callback)
progress_callback (current_size, total_size, progress_callback_data);
}
/* Make sure we send full copied size */
if (progress_callback)
progress_callback (current_size, total_size, progress_callback_data);
-
/* Don't care about errors in source here */
g_input_stream_close (in, cancellable, NULL);
return FALSE;
}
- if (!copy_stream_with_progress (in, out, cancellable,
+ if (!copy_stream_with_progress (in, out, source, cancellable,
progress_callback, progress_callback_data,
error))
return FALSE;
error);
}
+/**
+ * g_file_copy_async:
+ * @source: input #GFile.
+ * @destination: destination #GFile
+ * @flags: set of #GFileCopyFlags
+ * @io_priority: the <link linkend="io-priority">I/O priority</link>
+ * of the request.
+ * @cancellable: optional #GCancellable object, %NULL to ignore.
+ * @progress_callback: function to callback with progress information
+ * @progress_callback_data: user data to pass to @progress_callback
+ * @callback: a #GAsyncReadyCallback to call when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Copies the file @source to the location specified by @destination
+ * asynchronously. For details of the behaviour, see g_file_copy().
+ *
+ * If @progress_callback is not %NULL, then that function that will be called
+ * just like in g_file_copy(), however the callback will run in the main loop,
+ * not in the thread that is doing the I/O operation.
+ *
+ * When the operation is finished, @callback will be called. You can then call
+ * g_file_copy_finish() to get the result of the operation.
+ **/
+void
+g_file_copy_async (GFile *source,
+ GFile *destination,
+ GFileCopyFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GFileProgressCallback progress_callback,
+ gpointer progress_callback_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GFileIface *iface;
+
+ g_return_if_fail (G_IS_FILE (source));
+ g_return_if_fail (G_IS_FILE (destination));
+
+ iface = G_FILE_GET_IFACE (source);
+ (* iface->copy_async) (source,
+ destination,
+ flags,
+ io_priority,
+ cancellable,
+ progress_callback,
+ progress_callback_data,
+ callback,
+ user_data);
+}
+
+/**
+ * g_file_copy_finish:
+ * @file: input #GFile.
+ * @res: a #GAsyncResult.
+ * @error: a #GError, or %NULL
+ *
+ * Finishes copying the file started with
+ * g_file_copy_async().
+ *
+ * Returns: a %TRUE on success, %FALSE on error.
+ **/
+gboolean
+g_file_copy_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ GFileIface *iface;
+
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (G_IS_ASYNC_RESULT (res), FALSE);
+
+ if (G_IS_SIMPLE_ASYNC_RESULT (res))
+ {
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
+
+ if (g_simple_async_result_propagate_error (simple, error))
+ return FALSE;
+ }
+
+ iface = G_FILE_GET_IFACE (file);
+ return (* iface->copy_finish) (file, res, error);
+}
/**
* g_file_move:
*
*
* Tries to move the file or directory @source to the location specified by @destination.
- * If native move operations is supported then this is used, otherwise a copy + delete
+ * If native move operations are supported then this is used, otherwise a copy + delete
* fallback is used. The native implementation may support moving directories (for instance
* on moves inside the same filesystem), but the fallback code does not.
*
* @cancellable: optional #GCancellable object, %NULL to ignore.
* @error: a #GError, or %NULL
*
- * Deletes a file.
+ * Deletes a file. If the @file is a directory, it will only be deleted if it
+ * is empty.
*
* If @cancellable is not %NULL, then the operation can be cancelled by
* triggering the cancellable object from another thread. If the operation
/**
* g_file_mount_mountable:
* @file: input #GFile.
+ * @flags: flags affecting the operation
* @mount_operation: a #GMountOperation, or %NULL to avoid user interaction.
* @cancellable: optional #GCancellable object, %NULL to ignore.
* @callback: a #GAsyncReadyCallback to call when the request is satisfied, or %NULL.
**/
void
g_file_mount_mountable (GFile *file,
+ GMountMountFlags flags,
GMountOperation *mount_operation,
GCancellable *cancellable,
GAsyncReadyCallback callback,
iface = G_FILE_GET_IFACE (file);
- if (iface->mount_mountable == NULL)
- g_simple_async_report_error_in_idle (G_OBJECT (file),
- callback,
- user_data,
- G_IO_ERROR,
- G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
+ if (iface->mount_mountable == NULL)
+ {
+ g_simple_async_report_error_in_idle (G_OBJECT (file),
+ callback,
+ user_data,
+ G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Operation not supported"));
+ return;
+ }
(* iface->mount_mountable) (file,
+ flags,
mount_operation,
cancellable,
callback,
iface = G_FILE_GET_IFACE (file);
if (iface->unmount_mountable == NULL)
- g_simple_async_report_error_in_idle (G_OBJECT (file),
- callback,
- user_data,
- G_IO_ERROR,
- G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
+ {
+ g_simple_async_report_error_in_idle (G_OBJECT (file),
+ callback,
+ user_data,
+ G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Operation not supported"));
+ return;
+ }
(* iface->unmount_mountable) (file,
flags,
iface = G_FILE_GET_IFACE (file);
- if (iface->eject_mountable == NULL)
- g_simple_async_report_error_in_idle (G_OBJECT (file),
- callback,
- user_data,
- G_IO_ERROR,
- G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
+ if (iface->eject_mountable == NULL)
+ {
+ g_simple_async_report_error_in_idle (G_OBJECT (file),
+ callback,
+ user_data,
+ G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Operation not supported"));
+ return;
+ }
(* iface->eject_mountable) (file,
flags,
typedef struct {
char *attributes;
+ GFileInfo *info;
+} QueryFilesystemInfoAsyncData;
+
+static void
+query_filesystem_info_data_free (QueryFilesystemInfoAsyncData *data)
+{
+ if (data->info)
+ g_object_unref (data->info);
+ g_free (data->attributes);
+ g_free (data);
+}
+
+static void
+query_filesystem_info_async_thread (GSimpleAsyncResult *res,
+ GObject *object,
+ GCancellable *cancellable)
+{
+ GError *error = NULL;
+ QueryFilesystemInfoAsyncData *data;
+ GFileInfo *info;
+
+ data = g_simple_async_result_get_op_res_gpointer (res);
+
+ info = g_file_query_filesystem_info (G_FILE (object), data->attributes, cancellable, &error);
+
+ if (info == NULL)
+ {
+ g_simple_async_result_set_from_error (res, error);
+ g_error_free (error);
+ }
+ else
+ data->info = info;
+}
+
+static void
+g_file_real_query_filesystem_info_async (GFile *file,
+ const char *attributes,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GSimpleAsyncResult *res;
+ QueryFilesystemInfoAsyncData *data;
+
+ data = g_new0 (QueryFilesystemInfoAsyncData, 1);
+ data->attributes = g_strdup (attributes);
+
+ res = g_simple_async_result_new (G_OBJECT (file), callback, user_data, g_file_real_query_filesystem_info_async);
+ g_simple_async_result_set_op_res_gpointer (res, data, (GDestroyNotify)query_filesystem_info_data_free);
+
+ g_simple_async_result_run_in_thread (res, query_filesystem_info_async_thread, io_priority, cancellable);
+ g_object_unref (res);
+}
+
+static GFileInfo *
+g_file_real_query_filesystem_info_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
+ QueryFilesystemInfoAsyncData *data;
+
+ g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_file_real_query_filesystem_info_async);
+
+ data = g_simple_async_result_get_op_res_gpointer (simple);
+ if (data->info)
+ return g_object_ref (data->info);
+
+ return NULL;
+}
+
+typedef struct {
+ char *attributes;
GFileQueryInfoFlags flags;
GFileEnumerator *enumerator;
} EnumerateChildrenAsyncData;
return data->res;
}
+static void
+find_enclosing_mount_async_thread (GSimpleAsyncResult *res,
+ GObject *object,
+ GCancellable *cancellable)
+{
+ GError *error = NULL;
+ GMount *mount;
+
+ mount = g_file_find_enclosing_mount (G_FILE (object), cancellable, &error);
+
+ if (mount == NULL)
+ {
+ g_simple_async_result_set_from_error (res, error);
+ g_error_free (error);
+ }
+ else
+ g_simple_async_result_set_op_res_gpointer (res, mount, (GDestroyNotify)g_object_unref);
+}
+
+static void
+g_file_real_find_enclosing_mount_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GSimpleAsyncResult *res;
+
+ res = g_simple_async_result_new (G_OBJECT (file), callback, user_data, g_file_real_find_enclosing_mount_async);
+
+ g_simple_async_result_run_in_thread (res, find_enclosing_mount_async_thread, io_priority, cancellable);
+ g_object_unref (res);
+}
+
+static GMount *
+g_file_real_find_enclosing_mount_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
+ GMount *mount;
+
+ g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_file_real_find_enclosing_mount_async);
+
+ mount = g_simple_async_result_get_op_res_gpointer (simple);
+ return g_object_ref (mount);
+}
+
+
+typedef struct {
+ GFile *source;
+ GFile *destination;
+ GFileCopyFlags flags;
+ GFileProgressCallback progress_cb;
+ gpointer progress_cb_data;
+ GIOSchedulerJob *job;
+} CopyAsyncData;
+
+static void
+copy_async_data_free (CopyAsyncData *data)
+{
+ g_object_unref (data->source);
+ g_object_unref (data->destination);
+ g_free (data);
+}
+
+typedef struct {
+ CopyAsyncData *data;
+ goffset current_num_bytes;
+ goffset total_num_bytes;
+} ProgressData;
+
+static gboolean
+copy_async_progress_in_main (gpointer user_data)
+{
+ ProgressData *progress = user_data;
+ CopyAsyncData *data = progress->data;
+
+ data->progress_cb (progress->current_num_bytes,
+ progress->total_num_bytes,
+ data->progress_cb_data);
+
+ return FALSE;
+}
+
+static gboolean
+mainloop_barrier (gpointer user_data)
+{
+ /* Does nothing, but ensures all queued idles before
+ this are run */
+ return FALSE;
+}
+
+
+static void
+copy_async_progress_callback (goffset current_num_bytes,
+ goffset total_num_bytes,
+ gpointer user_data)
+{
+ CopyAsyncData *data = user_data;
+ ProgressData *progress;
+
+ progress = g_new (ProgressData, 1);
+ progress->data = data;
+ progress->current_num_bytes = current_num_bytes;
+ progress->total_num_bytes = total_num_bytes;
+
+ g_io_scheduler_job_send_to_mainloop_async (data->job,
+ copy_async_progress_in_main,
+ progress,
+ g_free);
+}
+
+static gboolean
+copy_async_thread (GIOSchedulerJob *job,
+ GCancellable *cancellable,
+ gpointer user_data)
+{
+ GSimpleAsyncResult *res;
+ CopyAsyncData *data;
+ gboolean result;
+ GError *error;
+
+ res = user_data;
+ data = g_simple_async_result_get_op_res_gpointer (res);
+
+ error = NULL;
+ data->job = job;
+ result = g_file_copy (data->source,
+ data->destination,
+ data->flags,
+ cancellable,
+ (data->progress_cb != NULL) ? copy_async_progress_callback : NULL,
+ data,
+ &error);
+
+ /* Ensure all progress callbacks are done running in main thread */
+ if (data->progress_cb != NULL)
+ g_io_scheduler_job_send_to_mainloop (job,
+ mainloop_barrier,
+ NULL, NULL);
+
+ if (!result)
+ {
+ g_simple_async_result_set_from_error (res, error);
+ g_error_free (error);
+ }
+
+ g_simple_async_result_complete_in_idle (res);
+
+ return FALSE;
+}
+
+static void
+g_file_real_copy_async (GFile *source,
+ GFile *destination,
+ GFileCopyFlags flags,
+ int io_priority,
+ GCancellable *cancellable,
+ GFileProgressCallback progress_callback,
+ gpointer progress_callback_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GSimpleAsyncResult *res;
+ CopyAsyncData *data;
+
+ data = g_new0 (CopyAsyncData, 1);
+ data->source = g_object_ref (source);
+ data->destination = g_object_ref (destination);
+ data->flags = flags;
+ data->progress_cb = progress_callback;
+ data->progress_cb_data = progress_callback_data;
+
+ res = g_simple_async_result_new (G_OBJECT (source), callback, user_data, g_file_real_copy_async);
+ g_simple_async_result_set_op_res_gpointer (res, data, (GDestroyNotify)copy_async_data_free);
+
+ g_io_scheduler_push_job (copy_async_thread, res, g_object_unref, io_priority, cancellable);
+}
+
+static gboolean
+g_file_real_copy_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ /* Error handled in g_file_copy_finish() */
+ return TRUE;
+}
+
+
/********************************************
* Default VFS operations *
********************************************/
/**
* g_file_mount_enclosing_volume:
* @location: input #GFile.
+ * @flags: flags affecting the operation
* @mount_operation: a #GMountOperation or %NULL to avoid user interaction.
* @cancellable: optional #GCancellable object, %NULL to ignore.
* @callback: a #GAsyncReadyCallback to call when the request is satisfied, or %NULL.
**/
void
g_file_mount_enclosing_volume (GFile *location,
+ GMountMountFlags flags,
GMountOperation *mount_operation,
GCancellable *cancellable,
GAsyncReadyCallback callback,
return;
}
- (* iface->mount_enclosing_volume) (location, mount_operation, cancellable, callback, user_data);
+ (* iface->mount_enclosing_volume) (location, flags, mount_operation, cancellable, callback, user_data);
}
* Utility functions *
********************************************/
+/**
+ * g_file_query_default_handler:
+ * @file: a #GFile to open.
+ * @cancellable: optional #GCancellable object, %NULL to ignore.
+ * @error: a #GError, or %NULL
+ *
+ * Returns the #GAppInfo that is registered as the default
+ * application to handle the file specified by @file.
+ *
+ * If @cancellable is not %NULL, then the operation can be cancelled by
+ * triggering the cancellable object from another thread. If the operation
+ * was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
+ *
+ * Returns: a #GAppInfo if the handle was found, %NULL if there were errors.
+ * When you are done with it, release it with g_object_unref()
+ **/
+GAppInfo *
+g_file_query_default_handler (GFile *file,
+ GCancellable *cancellable,
+ GError **error)
+{
+ char *uri_scheme;
+ const char *content_type;
+ GAppInfo *appinfo;
+ GFileInfo *info;
+ char *path;
+
+ uri_scheme = g_file_get_uri_scheme (file);
+ appinfo = g_app_info_get_default_for_uri_scheme (uri_scheme);
+ g_free (uri_scheme);
+
+ if (appinfo != NULL)
+ return appinfo;
+
+ info = g_file_query_info (file,
+ G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
+ 0,
+ cancellable,
+ error);
+ if (info == NULL)
+ return NULL;
+
+ appinfo = NULL;
+
+ content_type = g_file_info_get_content_type (info);
+ if (content_type)
+ {
+ /* Don't use is_native(), as we want to support fuse paths if availible */
+ path = g_file_get_path (file);
+ appinfo = g_app_info_get_default_for_type (content_type,
+ path == NULL);
+ g_free (path);
+ }
+
+ g_object_unref (info);
+
+ if (appinfo != NULL)
+ return appinfo;
+
+ g_set_error (error, G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("No application is registered as handling this file"));
+ return NULL;
+
+}
+
+
#define GET_CONTENT_BLOCK_SIZE 8192
/**
* @make_backup: %TRUE if a backup should be created.
* @flags: a set of #GFileCreateFlags.
* @new_etag: a location to a new <link linkend="gfile-etag">entity tag</link>
- * for the document.
+ * for the document. This should be freed with g_free() when no longer
+ * needed.
* @cancellable: optional #GCancellable object, %NULL to ignore.
* @error: a #GError, or %NULL
*
* @file: input #GFile.
* @res: a #GAsyncResult.
* @new_etag: a location of a new <link linkend="gfile-etag">entity tag</link>
- * for the document.
+ * for the document. This should be freed with g_free() when it is no
+ * longer needed.
* @error: a #GError, or %NULL
*
* Finishes an asynchronous replace of the given @file. See
projects / platform / upstream / glib.git / blobdiff