g_seekable_tell ()

goffset
g_seekable_tell (GSeekable *seekable);

Tells the current position within the stream.

g_seekable_can_seek ()

gboolean
g_seekable_can_seek (GSeekable *seekable);

Tests if the stream supports the GSeekableIface.

g_seekable_seek ()

gboolean
g_seekable_seek (GSeekable *seekable,
                 goffset offset,
                 GSeekType type,
                 GCancellable *cancellable,
                 GError **error);

Seeks in the stream by the given offset , modified by type .

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.

g_seekable_can_truncate ()

gboolean
g_seekable_can_truncate (GSeekable *seekable);

Tests if the stream can be truncated.

g_seekable_truncate ()

gboolean
g_seekable_truncate (GSeekable *seekable,
                     goffset offset,
                     GCancellable *cancellable,
                     GError **error);

Truncates a stream with a given offset.

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. If an operation was partially finished when the operation was cancelled the partial result will be returned, without an error.

Virtual: truncate_fn

GSeekable

typedef struct _GSeekable GSeekable;

Seek object for streaming operations.

struct GSeekableIface

struct GSeekableIface {
  GTypeInterface g_iface;

  /* Virtual Table */

  goffset     (* tell)	         (GSeekable    *seekable);

  gboolean    (* can_seek)       (GSeekable    *seekable);
  gboolean    (* seek)	         (GSeekable    *seekable,
				  goffset       offset,
				  GSeekType     type,
				  GCancellable *cancellable,
				  GError      **error);

  gboolean    (* can_truncate)   (GSeekable    *seekable);
  gboolean    (* truncate_fn)    (GSeekable    *seekable,
				  goffset       offset,
				  GCancellable *cancellable,
				  GError       **error);

  /* TODO: Async seek/truncate */
};

Provides an interface for implementing seekable functionality on I/O Streams.