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* [newlib-cygwin] Cygwin: pipes: create pipes with synchronization enabled
@ 2021-09-14 15:06 Corinna Vinschen
0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2021-09-14 15:06 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=fcccc4b74308fa2dc57191b82028c69ca0d4b5c7
commit fcccc4b74308fa2dc57191b82028c69ca0d4b5c7
Author: Corinna Vinschen <corinna@vinschen.de>
Date: Fri Sep 3 10:32:30 2021 +0200
Cygwin: pipes: create pipes with synchronization enabled
This isn't used by Cygwin, but it might be used by Win32 processes
inheriting the handle.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/cygwin/fhandler_pipe.cc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/winsup/cygwin/fhandler_pipe.cc b/winsup/cygwin/fhandler_pipe.cc
index 8b66121b4..b69bb1d40 100644
--- a/winsup/cygwin/fhandler_pipe.cc
+++ b/winsup/cygwin/fhandler_pipe.cc
@@ -659,7 +659,7 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
&cygheap->installation_key,
GetCurrentProcessId ());
- access = GENERIC_READ | FILE_WRITE_ATTRIBUTES;
+ access = GENERIC_READ | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE;
ULONG pipe_type = pipe_byte ? FILE_PIPE_BYTE_STREAM_TYPE
: FILE_PIPE_MESSAGE_TYPE;
@@ -738,7 +738,7 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
{
debug_printf ("NtOpenFile: name %S", &pipename);
- access = GENERIC_WRITE | FILE_READ_ATTRIBUTES;
+ access = GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE;
status = NtOpenFile (w, access, &attr, &io, 0, 0);
if (!NT_SUCCESS (status))
{
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