[newlib-cygwin] Revert "Cygwin: fhandler_pipe.cc:nt_select: fix flags again"

[newlib-cygwin] Revert "Cygwin: fhandler_pipe.cc:nt_select: fix flags again"

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=71f02bcc3f804395402134239c63484f0eaad04b

commit 71f02bcc3f804395402134239c63484f0eaad04b
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue Aug 31 11:39:49 2021 +0200

    Revert "Cygwin: fhandler_pipe.cc:nt_select: fix flags again"
    
    This reverts commit c35db324efb5cdc6605eac947e0d4fdeb45e8b43.

Diff:
---
 winsup/cygwin/fhandler_pipe.cc | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/winsup/cygwin/fhandler_pipe.cc b/winsup/cygwin/fhandler_pipe.cc
index 81822a90b..b99f00c09 100644
--- a/winsup/cygwin/fhandler_pipe.cc
+++ b/winsup/cygwin/fhandler_pipe.cc
@@ -686,8 +686,10 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
 				  npfsh, sa_ptr->lpSecurityDescriptor);
 
       timeout.QuadPart = -500000;
-      status = NtCreateNamedPipeFile (r, access, &attr, &io, 0, FILE_CREATE,
-				      0, pipe_type, FILE_PIPE_BYTE_STREAM_MODE,
+      status = NtCreateNamedPipeFile (r, access, &attr, &io,
+				      FILE_SHARE_READ | FILE_SHARE_WRITE,
+				      FILE_CREATE, FILE_SYNCHRONOUS_IO_NONALERT,
+				      pipe_type, FILE_PIPE_BYTE_STREAM_MODE,
 				      0, 1, psize, psize, &timeout);
 
       if (NT_SUCCESS (status))
@@ -736,7 +738,8 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
       debug_printf ("NtOpenFile: name %S", &pipename);
 
       access = GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE;
-      status = NtOpenFile (w, access, &attr, &io, 0, 0);
+      status = NtOpenFile (w, access, &attr, &io, 0,
+			   FILE_SYNCHRONOUS_IO_NONALERT);
       if (!NT_SUCCESS (status))
 	{
 	  DWORD err = GetLastError ();