From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from conuserg-07.nifty.com (conuserg-07.nifty.com [210.131.2.74]) by sourceware.org (Postfix) with ESMTPS id B125C3840C19 for ; Fri, 15 Jan 2021 09:27:07 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org B125C3840C19 Received: from localhost.localdomain (x067108.dynamic.ppp.asahi-net.or.jp [122.249.67.108]) (authenticated) by conuserg-07.nifty.com with ESMTP id 10F9Qgl0004790; Fri, 15 Jan 2021 18:26:48 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-07.nifty.com 10F9Qgl0004790 X-Nifty-SrcIP: [122.249.67.108] From: Takashi Yano To: cygwin-patches@cygwin.com Subject: [PATCH] Cygwin: pty: Set input_available_event only for cygwin pipe. Date: Fri, 15 Jan 2021 18:26:31 +0900 Message-Id: <20210115092631.748-1-takashi.yano@nifty.ne.jp> X-Mailer: git-send-email 2.30.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-9.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin-patches@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Cygwin core component patch submission and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2021 09:27:09 -0000 - cat exits immediately in the following senario. 1) Execute env CYGWIN=disable_pcon script 2) Execute cmd.exe 3) Execute cat in cmd.exe. This is caused by setting input_available_event for the pipe for non-cygwin app. This patch fixes the issue. --- winsup/cygwin/fhandler_tty.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index e4993bf31..0b9901974 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -394,7 +394,8 @@ fhandler_pty_master::accept_input () } } - SetEvent (input_available_event); + if (write_to == get_output_handle ()) + SetEvent (input_available_event); ReleaseMutex (input_mutex); return ret; } -- 2.30.0