SeekableT

gio.seekable.Seekable is implemented by streams (implementations of gio.input_stream.InputStream or gio.output_stream.OutputStream) that support seeking.

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

gio.seekable.Seekable 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.

gio.seekable.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.

template SeekableT () {

bool canSeek();

bool canTruncate();

bool seek(long offset, glib.types.SeekType type, gio.cancellable.Cancellable cancellable);

long tell();

bool truncate(long offset, gio.cancellable.Cancellable cancellable);

}

Members

Functions

canSeek bool canSeek(): Tests if the stream supports the #GSeekableIface.
canTruncate bool canTruncate(): Tests if the length of the stream can be adjusted with gio.seekable.Seekable.truncate.
seek bool seek(long offset, glib.types.SeekType type, gio.cancellable.Cancellable cancellable): Seeks in the stream by the given offset, modified by type.
tell long tell(): Tells the current position within the stream.
truncate bool truncate(long offset, gio.cancellable.Cancellable cancellable): Sets the length of the stream to offset. If the stream was previously larger than offset, the extra data is discarded. If the stream was previously shorter than offset, it is extended with NUL ('\0') bytes.

gio seekable_mixin templates

SeekableT