OutputStream.writeBytesAsync

void writeBytesAsync(glib.bytes.Bytes bytes,  int  ioPriority,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

This function is similar to [gio.output_stream.OutputStream.writeAsync], but takes a #GBytes as input. Due to the refcounted nature of #GBytes, this allows the stream to avoid taking a copy of the data.

However, note that this function may still perform partial writes, just like [gio.output_stream.OutputStream.writeAsync]. If that occurs, to continue writing, you will need to create a new #GBytes containing just the remaining bytes, using [glib.bytes.Bytes.newFromBytes]. Passing the same #GBytes instance multiple times potentially can result in duplicated data in the output stream.

For the synchronous, blocking version of this function, see [gio.output_stream.OutputStream.writeBytes].

Parameters

`bytes`	The bytes to write
`ioPriority`	the io priority of the request.
`cancellable`	optional #GCancellable object, null to ignore.
`callback`	a #GAsyncReadyCallback to call when the request is satisfied