flushAsync
open fun flushAsync(ioPriority: <Error class: unknown class>, cancellable: Cancellable? = null, callback: AsyncReadyCallback?)
Forces an asynchronous write of all user-space buffered data for the given @stream. For behaviour details see g_output_stream_flush().
When the operation is finished @callback will be called. You can then call g_output_stream_flush_finish() to get the result of the operation.
Parameters
ioPriority
the io priority of the request.
cancellable
optional #GCancellable object, null to ignore.
callback
a #GAsyncReadyCallback to call when the request is satisfied