* fhandler.cc (fhandler_base::read): Remove unused signal state tweaks.

* fhandler.h (fhandler_pipe::create_selectable): Declare.
(fhandler_fifo::close_one_end): Declare.
* fhandler_fifo.cc (fhandler_fifo::close_one_end): Define.
(fhandler_fifo::open_not_mine): Use close_one_end to close appropriate end of
pipe.
* pinfo.cc (_pinfo::commune_recv): Ditto.
* pipe.cc (fhandler_pipe::create_selectable): Rename from
create_selectable_pipe.  Reorganize.
(fhandler_pipe::create): Use create_selectable.

winsup/cygwin/pinfo.cc

@@ -611,6 +611,7 @@ _pinfo::commune_recv ()
 		  break;
 		}
 	    debug_printf ("fifo found %p, %p", it[0], it[1]);
+	    fh->close_one_end ();  /* FIXME: not quite right - need more handshaking */
 	  }
 
 	CloseHandle (hp);