Gio.Seekable

const Gio = imports.gi.Gio;

let seekable = new Gio.Seekable();
  

Gio.Seekable is implemented by streams (implementations of Gio.InputStream or Gio.OutputStream) that support seeking.

Seekable streams largely fall into two categories: resizable and fixed-size.

Gio.Seekable on fixed-sized streams is approximately the same as POSIX lseek() on a block device (for example: attmepting to seek past the end of the device is an error). Fixed streams typically cannot be truncated.

Gio.Seekable on resizable streams is approximately the same as POSIX lseek() on a normal file. Seeking past the end and writing data will usually cause the stream to resize by introducing zero bytes.