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* [newlib-cygwin] Cygwin: pipe: Restore blocking mode for cygwin process at startup.
@ 2021-12-13 10:40 Takashi Yano
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From: Takashi Yano @ 2021-12-13 10:40 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=90788821b7d8f48e7f5e31fed68e54856a97b577
commit 90788821b7d8f48e7f5e31fed68e54856a97b577
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date: Wed Nov 17 17:08:05 2021 +0900
Cygwin: pipe: Restore blocking mode for cygwin process at startup.
- Set blocking mode properly at startup of cygwin process. This is
needed if the cygwin process is executed from non-cygwin process.
Diff:
---
winsup/cygwin/dtable.cc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc
index d57cbb355..e54db4446 100644
--- a/winsup/cygwin/dtable.cc
+++ b/winsup/cygwin/dtable.cc
@@ -410,6 +410,9 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle)
{
fhandler_pipe *fhp = (fhandler_pipe *) fh;
fhp->set_pipe_buf_size ();
+ /* Set read pipe always to nonblocking */
+ fhp->set_pipe_non_blocking (fhp->get_device () == FH_PIPER ?
+ true : fhp->is_nonblocking ());
}
if (!fh->open_setup (openflags))
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