X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :references:in-reply-to:content-type:content-transfer-encoding; q=dns; s=default; b=se8xfEinDIryd6ytjnkvdiiaGcccuh9LAHs1pg7/hLO EgWwkafxkr8buEURMhLKppARLatlUDWa8LjuxeEgaluvQNY4RIhWRMJ4qytVVrBp jBm/EnGd4VuFqkM9s9S0m8qr6MqTbEnPF726SM6MTPto7bnrucxYiAogsKha5FIg = DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :references:in-reply-to:content-type:content-transfer-encoding; s=default; bh=lkuZZjq8N0ewzpNfS3X08PkZHTY=; b=asPxtsgBUWoEayuU2 0r01KLYCI9PEw0Mdqj2xLzD/SxbxnJQZ+Dgj9wZZy59pYlBqwfXcKUzLfoFLWXxb NU85Q6WaTVqO6s6RObNNgbiNt+M2PgQa0qOqawRMSuiSKXF5mwzOa2KC7WOMOsuT MZcogAUz9W89a/oRgx0ATewT94= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=0.7 required=5.0 tests=AWL,BAYES_40,RCVD_IN_PBL,RDNS_NONE autolearn=no version=3.3.2 X-HELO: etr-usa.com Message-ID: <5242F270.3090003@etr-usa.com> Date: Wed, 25 Sep 2013 08:25:52 -0600 From: Warren Young User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: Cygwin-L Subject: Re: Perl and File Locking References: <20130925172435 DOT 320 AT binki> In-Reply-To: <20130925172435.320@binki> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes On 9/25/2013 02:24, wynfield AT gmail DOT com wrote: > > "Your vendor has not defined Fcntl macro O_EXLOCK," O_EXLOCK is a BSD feature, and Cygwin tries to emulate Linux, not BSD. Minimal testing tells me you can use Cygwin's nonstandard F_LCK_MANDATORY feature from Perl. This script, foo.pl, doesn't die: #!/usr/bin/perl sysopen my $fh, "foo.pl", 0600, O_RDONLY or die "sysopen: $!\n"; fcntl $fh, 0x99, 1 or die "fcntl: $!\n"; Whether it actually does what you expect is a different question. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple