static int
mongoc_stream_buffered_cork (mongoc_stream_t *stream) /* IN */
{
   mongoc_stream_buffered_t *buffered = (mongoc_stream_buffered_t *)stream;
   bson_return_val_if_fail(stream, -1);
   return mongoc_stream_cork(buffered->base_stream);
}
static int
_mongoc_stream_tls_cork (mongoc_stream_t *stream)
{
   mongoc_stream_tls_t *tls = (mongoc_stream_tls_t *)stream;

   BSON_ASSERT (stream);

   return mongoc_stream_cork (tls->base_stream);
}