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docs: Move the GFile SECTION
Move it to the struct docs. Signed-off-by: Philip Withnall <pwithnall@gnome.org> Helps: #3037
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Philip Withnall
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70881dbabe
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127
gio/gfile.c
127
gio/gfile.c
@ -86,94 +86,99 @@ typedef off_t loff_t;
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/**
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* SECTION:gfile
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* @short_description: File and Directory Handling
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* @include: gio/gio.h
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* @see_also: #GFileInfo, #GFileEnumerator
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* GFile:
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*
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* #GFile is a high level abstraction for manipulating files on a
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* virtual file system. #GFiles are lightweight, immutable objects
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* `GFile` is a high level abstraction for manipulating files on a
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* virtual file system. `GFile`s are lightweight, immutable objects
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* that do no I/O upon creation. It is necessary to understand that
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* #GFile objects do not represent files, merely an identifier for a
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* `GFile` objects do not represent files, merely an identifier for a
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* file. All file content I/O is implemented as streaming operations
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* (see #GInputStream and #GOutputStream).
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* (see [class@Gio.InputStream] and [class@Gio.OutputStream]).
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*
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* To construct a #GFile, you can use:
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* - g_file_new_for_path() if you have a path.
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* - g_file_new_for_uri() if you have a URI.
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* - g_file_new_for_commandline_arg() for a command line argument.
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* - g_file_new_tmp() to create a temporary file from a template.
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* - g_file_new_tmp_async() to asynchronously create a temporary file.
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* - g_file_new_tmp_dir_async() to asynchronously create a temporary directory.
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* - g_file_parse_name() from a UTF-8 string gotten from g_file_get_parse_name().
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* - g_file_new_build_filename() or g_file_new_build_filenamev() to create a file from path elements.
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* To construct a `GFile`, you can use:
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*
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* One way to think of a #GFile is as an abstraction of a pathname. For
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* - [func@Gio.File.new_for_path] if you have a path.
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* - [func@Gio.File.new_for_uri] if you have a URI.
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* - [func@Gio.File.new_for_commandline_arg] or
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* [func@Gio.File.new_for_commandline_arg_and_cwd] for a command line
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* argument.
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* - [func@Gio.File.new_tmp] to create a temporary file from a template.
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* - [func@Gio.File.new_tmp_async] to asynchronously create a temporary file.
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* - [func@Gio.File.new_tmp_dir_async] to asynchronously create a temporary
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* directory.
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* - [func@Gio.File.parse_name] from a UTF-8 string gotten from
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* [method@Gio.File.get_parse_name].
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* - [func@Gio.File.new_build_filename] or [func@Gio.File.new_build_filenamev]
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* to create a file from path elements.
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*
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* One way to think of a `GFile` is as an abstraction of a pathname. For
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* normal files the system pathname is what is stored internally, but as
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* #GFiles are extensible it could also be something else that corresponds
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* `GFile`s are extensible it could also be something else that corresponds
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* to a pathname in a userspace implementation of a filesystem.
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*
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* #GFiles make up hierarchies of directories and files that correspond to
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* `GFile`s make up hierarchies of directories and files that correspond to
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* the files on a filesystem. You can move through the file system with
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* #GFile using g_file_get_parent() to get an identifier for the parent
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* directory, g_file_get_child() to get a child within a directory,
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* g_file_resolve_relative_path() to resolve a relative path between two
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* #GFiles. There can be multiple hierarchies, so you may not end up at
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* the same root if you repeatedly call g_file_get_parent() on two different
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* files.
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* `GFile` using [method@Gio.File.get_parent] to get an identifier for the
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* parent directory, [method@Gio.File.get_child] to get a child within a
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* directory, and [method@Gio.File.resolve_relative_path] to resolve a relative
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* path between two `GFile`s. There can be multiple hierarchies, so you may not
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* end up at the same root if you repeatedly call [method@Gio.File.get_parent]
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* on two different files.
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*
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* All #GFiles have a basename (get with g_file_get_basename()). These names
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* are byte strings that are used to identify the file on the filesystem
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* All `GFile`s have a basename (get with [method@Gio.File.get_basename]). These
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* names are byte strings that are used to identify the file on the filesystem
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* (relative to its parent directory) and there is no guarantees that they
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* have any particular charset encoding or even make any sense at all. If
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* you want to use filenames in a user interface you should use the display
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* name that you can get by requesting the
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* %G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME attribute with g_file_query_info().
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* This is guaranteed to be in UTF-8 and can be used in a user interface.
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* But always store the real basename or the #GFile to use to actually
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* access the file, because there is no way to go from a display name to
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* the actual name.
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* `G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME` attribute with
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* [method@Gio.File.query_info]. This is guaranteed to be in UTF-8 and can be
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* used in a user interface. But always store the real basename or the `GFile`
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* to use to actually access the file, because there is no way to go from a
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* display name to the actual name.
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*
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* Using #GFile as an identifier has the same weaknesses as using a path
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* Using `GFile` as an identifier has the same weaknesses as using a path
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* in that there may be multiple aliases for the same file. For instance,
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* hard or soft links may cause two different #GFiles to refer to the same
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* hard or soft links may cause two different `GFile`s to refer to the same
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* file. Other possible causes for aliases are: case insensitive filesystems,
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* short and long names on FAT/NTFS, or bind mounts in Linux. If you want to
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* check if two #GFiles point to the same file you can query for the
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* %G_FILE_ATTRIBUTE_ID_FILE attribute. Note that #GFile does some trivial
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* check if two `GFile`s point to the same file you can query for the
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* `G_FILE_ATTRIBUTE_ID_FILE` attribute. Note that `GFile` does some trivial
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* canonicalization of pathnames passed in, so that trivial differences in
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* the path string used at creation (duplicated slashes, slash at end of
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* path, "." or ".." path segments, etc) does not create different #GFiles.
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* path, `.` or `..` path segments, etc) does not create different `GFile`s.
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*
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* Many #GFile operations have both synchronous and asynchronous versions
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* Many `GFile` operations have both synchronous and asynchronous versions
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* to suit your application. Asynchronous versions of synchronous functions
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* simply have _async() appended to their function names. The asynchronous
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* I/O functions call a #GAsyncReadyCallback which is then used to finalize
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* the operation, producing a GAsyncResult which is then passed to the
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* function's matching _finish() operation.
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* simply have `_async()` appended to their function names. The asynchronous
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* I/O functions call a [callback@Gio.AsyncReadyCallback] which is then used to
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* finalize the operation, producing a [iface@Gio.AsyncResult] which is then
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* passed to the function’s matching `_finish()` operation.
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*
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* It is highly recommended to use asynchronous calls when running within a
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* shared main loop, such as in the main thread of an application. This avoids
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* I/O operations blocking other sources on the main loop from being dispatched.
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* Synchronous I/O operations should be performed from worker threads. See the
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* [introduction to asynchronous programming section][async-programming] for
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* more.
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* [introduction to asynchronous programming section](overview.html#asynchronous-programming)
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* for more.
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*
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* Some #GFile operations almost always take a noticeable amount of time, and
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* Some `GFile` operations almost always take a noticeable amount of time, and
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* so do not have synchronous analogs. Notable cases include:
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* - g_file_mount_mountable() to mount a mountable file.
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* - g_file_unmount_mountable_with_operation() to unmount a mountable file.
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* - g_file_eject_mountable_with_operation() to eject a mountable file.
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*
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* ## Entity Tags # {#gfile-etag}
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* - [method@Gio.File.mount_mountable] to mount a mountable file.
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* - [method@Gio.File.unmount_mountable_with_operation] to unmount a mountable
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* file.
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* - [method@Gio.File.eject_mountable_with_operation] to eject a mountable file.
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*
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* One notable feature of #GFiles are entity tags, or "etags" for
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* ## Entity Tags
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*
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* One notable feature of `GFile`s are entity tags, or ‘etags’ for
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* short. Entity tags are somewhat like a more abstract version of the
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* traditional mtime, and can be used to quickly determine if the file
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* has been modified from the version on the file system. See the
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* HTTP 1.1
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* [specification](http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html)
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* for HTTP Etag headers, which are a very similar concept.
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* for HTTP `ETag` headers, which are a very similar concept.
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*/
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static void g_file_real_query_info_async (GFile *file,
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@ -1833,7 +1838,7 @@ g_file_create (GFile *file,
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/**
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* g_file_replace:
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* @file: input #GFile
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* @etag: (nullable): an optional [entity tag][gfile-etag]
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* @etag: (nullable): an optional [entity tag](#entity-tags)
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* for the current #GFile, or #NULL to ignore
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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@ -2038,7 +2043,7 @@ g_file_create_readwrite (GFile *file,
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/**
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* g_file_replace_readwrite:
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* @file: a #GFile
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* @etag: (nullable): an optional [entity tag][gfile-etag]
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* @etag: (nullable): an optional [entity tag](#entity-tags)
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* for the current #GFile, or #NULL to ignore
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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@ -2302,7 +2307,7 @@ g_file_create_finish (GFile *file,
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/**
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* g_file_replace_async:
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* @file: input #GFile
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* @etag: (nullable): an [entity tag][gfile-etag] for the current #GFile,
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* @etag: (nullable): an [entity tag](#entity-tags) for the current #GFile,
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* or %NULL to ignore
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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@ -2526,7 +2531,7 @@ g_file_create_readwrite_finish (GFile *file,
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/**
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* g_file_replace_readwrite_async:
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* @file: input #GFile
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* @etag: (nullable): an [entity tag][gfile-etag] for the current #GFile,
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* @etag: (nullable): an [entity tag](#entity-tags) for the current #GFile,
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* or %NULL to ignore
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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@ -8309,11 +8314,11 @@ g_file_load_contents_finish (GFile *file,
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* @file: input #GFile
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* @contents: (element-type guint8) (array length=length): a string containing the new contents for @file
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* @length: the length of @contents in bytes
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* @etag: (nullable): the old [entity-tag][gfile-etag] for the document,
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* @etag: (nullable): the old [entity-tag](#entity-tags) for the document,
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* or %NULL
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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* @new_etag: (out) (optional) (nullable): a location to a new [entity tag][gfile-etag]
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* @new_etag: (out) (optional) (nullable): a location to a new [entity tag](#entity-tags)
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* for the document. This should be freed with g_free() when no longer
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* needed, or %NULL
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* @cancellable: optional #GCancellable object, %NULL to ignore
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@ -8516,7 +8521,7 @@ replace_contents_open_callback (GObject *obj,
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* @file: input #GFile
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* @contents: (element-type guint8) (array length=length): string of contents to replace the file with
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* @length: the length of @contents in bytes
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* @etag: (nullable): a new [entity tag][gfile-etag] for the @file, or %NULL
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* @etag: (nullable): a new [entity tag](#entity-tags) for the @file, or %NULL
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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* @cancellable: optional #GCancellable object, %NULL to ignore
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@ -8566,7 +8571,7 @@ g_file_replace_contents_async (GFile *file,
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* g_file_replace_contents_bytes_async:
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* @file: input #GFile
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* @contents: a #GBytes
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* @etag: (nullable): a new [entity tag][gfile-etag] for the @file, or %NULL
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* @etag: (nullable): a new [entity tag](#entity-tags) for the @file, or %NULL
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* @make_backup: %TRUE if a backup should be created
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* @flags: a set of #GFileCreateFlags
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* @cancellable: optional #GCancellable object, %NULL to ignore
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@ -8621,7 +8626,7 @@ g_file_replace_contents_bytes_async (GFile *file,
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* g_file_replace_contents_finish:
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* @file: input #GFile
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* @res: a #GAsyncResult
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* @new_etag: (out) (optional) (nullable): a location of a new [entity tag][gfile-etag]
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* @new_etag: (out) (optional) (nullable): a location of a new [entity tag](#entity-tags)
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* for the document. This should be freed with g_free() when it is no
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* longer needed, or %NULL
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* @error: a #GError, or %NULL
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10
gio/gfile.h
10
gio/gfile.h
@ -36,16 +36,6 @@ G_BEGIN_DECLS
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#define G_IS_FILE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_FILE))
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#define G_FILE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_FILE, GFileIface))
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#if 0
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/**
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* GFile:
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*
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* A handle to an object implementing the #GFileIface interface.
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* Generally stores a location within the file system. Handles do not
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* necessarily represent files or directories that currently exist.
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**/
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typedef struct _GFile GFile; /* Dummy typedef */
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#endif
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typedef struct _GFileIface GFileIface;
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@ -2066,7 +2066,7 @@ g_file_info_get_symlink_target (GFileInfo *info)
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* g_file_info_get_etag:
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* @info: a #GFileInfo.
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*
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* Gets the [entity tag][gfile-etag] for a given
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* Gets the [entity tag](iface.File.html#entity-tags) for a given
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* #GFileInfo. See %G_FILE_ATTRIBUTE_ETAG_VALUE.
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*
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* It is an error to call this if the #GFileInfo does not contain
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@ -76,13 +76,6 @@ typedef struct _GFileMonitor GFileMonitor;
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typedef struct _GFilterInputStream GFilterInputStream;
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typedef struct _GFilterOutputStream GFilterOutputStream;
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/**
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* GFile:
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*
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* A handle to an object implementing the #GFileIface interface.
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* Generally stores a location within the file system. Handles do not
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* necessarily represent files or directories that currently exist.
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**/
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typedef struct _GFile GFile; /* Dummy typedef */
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typedef struct _GFileInfo GFileInfo;
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