FileIOStream

FileIOStream

Object Hierarchy:

Description:

[ CCode ( type_id = "g_file_io_stream_get_type ()" ) ]
[ Version ( since = "2.22" ) ]
public class FileIOStream : IOStream, Seekable

`GFileIOStream` provides I/O streams that both read and write to the same file handle.

`GFileIOStream` implements [iface@Gio.Seekable], which allows the I/O stream to jump to arbitrary positions in the file and to truncate the file, provided the filesystem of the file supports these operations.

To find the position of a file I/O stream, use [method@Gio.Seekable.tell].

To find out if a file I/O stream supports seeking, use [method@Gio.Seekable.can_seek]. To position a file I/O stream, use [ method@Gio.Seekable.seek]. To find out if a file I/O stream supports truncating, use [method@Gio.Seekable.can_truncate]. To truncate a file I/O stream, use [method@Gio.Seekable.truncate].

The default implementation of all the `GFileIOStream` operations and the implementation of [iface@Gio.Seekable] just call into the same operations on the output stream.

Namespace: GLib

Package: gio-2.0

Content:

Creation methods:

protected FileIOStream ()

Methods:

public virtual bool can_seek ()
public virtual bool can_truncate ()
public virtual string? get_etag ()
Gets the entity tag for the file when it has been written.
public virtual FileInfo query_info (string attributes, Cancellable? cancellable = null) throws Error
Queries a file io stream for the given attributes.
public virtual async FileInfo query_info_async (string attributes, int io_priority = DEFAULT, Cancellable? cancellable = null) throws Error
Asynchronously queries the this for a FileInfo.
public virtual bool seek (int64 offset, SeekType type, Cancellable? cancellable = null) throws Error
public virtual int64 tell ()
public virtual bool truncate_fn (int64 size, Cancellable? cancellable = null) throws Error

Inherited Members:

All known members inherited from class GLib.IOStream

All known members inherited from class GLib.Object

All known members inherited from interface GLib.Seekable

seek
tell

truncate