splice
open fun splice(source: InputStream, flags: OutputStreamSpliceFlags, cancellable: Cancellable? = null): <Error class: unknown class><Long>
Splices an input stream into an output stream.
Return
a #gssize containing the size of the data spliced, or -1 if an error occurred. Note that if the number of bytes spliced is greater than %G_MAXSSIZE, then that will be returned, and there is no way to determine the actual number of bytes spliced.
Parameters
source
a #GInputStream.
flags
a set of #GOutputStreamSpliceFlags.
cancellable
optional #GCancellable object, null to ignore.