From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-4.1 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.1 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id D61431F405 for ; Thu, 9 Aug 2018 08:46:41 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id A8CD0120C0C; Thu, 9 Aug 2018 17:46:39 +0900 (JST) Received: from dcvr.yhbt.net (dcvr.yhbt.net [64.71.152.64]) by neon.ruby-lang.org (Postfix) with ESMTPS id 0B1F6120A71 for ; Thu, 9 Aug 2018 17:46:36 +0900 (JST) Received: from localhost (dcvr.yhbt.net [127.0.0.1]) by dcvr.yhbt.net (Postfix) with ESMTP id 0BC3A1F405; Thu, 9 Aug 2018 08:46:33 +0000 (UTC) Date: Thu, 9 Aug 2018 08:46:32 +0000 From: Eric Wong To: ruby-core@ruby-lang.org Message-ID: <20180809084631.332ktea7hn5oyyjq@whir> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-ML-Name: ruby-core X-Mail-Count: 88379 Subject: [ruby-core:88379] Re: [Ruby trunk Bug#14968] [PATCH] io.c: make all pipes nonblocking by default X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" usa@garbagecollect.jp wrote: > BTW, Windows does not have nonblocking pipe. Uh oh, really? I saw rb_w32_set_nonblock() has is_pipe() check and {Get,Set}NamedPipeHandleState calls, already, so that's something else? > Yes, we may be able to write emulation layer with overlapped > I/O functions, but it's very difficult. Maybe it's not a big deal to not have non-blocking pipes. Does win32 have TOCTTOU race in signal handling? All *nix has this problem, but maybe it's a *nix-only problem. I see you don't have ubf_list like thread_pthread.c has. Thanks.