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From: Takashi Yano <tyan0@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: pipe: Restore blocking mode for cygwin process at startup. Date: Mon, 13 Dec 2021 10:40:16 +0000 (GMT) [thread overview] Message-ID: <20211213104016.9D6A43858419@sourceware.org> (raw) 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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