module Gio::Seekable

Overview

GSeekable 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.

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

GSeekable 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.

Direct including types

• Gio::BufferedInputStream
• Gio::BufferedOutputStream
• Gio::DataInputStream
• Gio::DataOutputStream
• Gio::FileInputStream
• Gio::FileIOStream
• Gio::FileOutputStream
• Gio::MemoryInputStream
• Gio::MemoryOutputStream

Defined in:

lib/gi-crystal/src/auto/gio-2.0/seekable.cr

Constructors

• .cast(obj : GObject::Object) : self

  Cast a GObject::Object to self, throws a TypeCastError if the cast can't be made.

Class Method Summary

• .cast?(obj : GObject::Object) : self | Nil
• .g_type : UInt64

Instance Method Summary

• #can_seek : Bool
• #can_truncate : Bool
• #seek(offset : Int64, type : GLib::SeekType, cancellable : Gio::Cancellable | Nil) : Bool
• #tell : Int64
• #to_unsafe
• #truncate(offset : Int64, cancellable : Gio::Cancellable | Nil) : Bool

Constructor Detail

Class Method Detail

Instance Method Detail