X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=2.6 required=5.0 tests=AWL,BAYES_20,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DONT_USE_RAW_EMAIL_IN_BODY,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,TW_CG,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: sourceware.org MIME-Version: 1.0 In-Reply-To: <20100817215134.GB16955@ednor.casa.cgf.cx> References: <20100817215134 DOT GB16955 AT ednor DOT casa DOT cgf DOT cx> From: Etienne Carriere Date: Thu, 19 Aug 2010 07:42:32 +0200 Message-ID: Subject: Re: Curious behavior of fifo on cygwin 1.7.5 To: cygwin AT cygwin DOT com Content-Type: multipart/mixed; boundary=0015175caae4373ce2048e26a7f3 X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 --0015175caae4373ce2048e26a7f3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, Thanks for your answer . In order to have the standard behavior, I open/close the filedescriptor before/after each read as in the attached code and it seems to work Regards, Etienne Carri=E8re 2010/8/17 Christopher Faylor : > On Tue, Aug 17, 2010 at 07:25:25PM +0200, Etienne Carriere wrote: >>Hello, >> >>I currently have a curious behavior with fifo (named pipes on cygwin >>1.7.5) . I first discovered when using Nagios on cygwin but I achieved >>to simplify it . The scenario is the following : > > If you search the mailing list archives, you'll see a fair number of > problems with fifos and you'll also see my acknowledgement of same. > > fifos in Cygwin are a work-in-progress and are not guaranteed to work > like their linux counterparts. > > I do poke at them from time to time but, for now, you'll have to > consider them to be "as-is". =A0That means that some things are broken. > > cgf > > -- > Problem reports: =A0 =A0 =A0 http://cygwin.com/problems.html > FAQ: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 http://cygwin.com/faq/ > Documentation: =A0 =A0 =A0 =A0 http://cygwin.com/docs.html > Unsubscribe info: =A0 =A0 =A0http://cygwin.com/ml/#unsubscribe-simple > > --0015175caae4373ce2048e26a7f3 Content-Type: application/octet-stream; name="consume_fifo_workaround.c" Content-Disposition: attachment; filename="consume_fifo_workaround.c" Content-Transfer-Encoding: base64 X-Attachment-Id: f_gd16phg00 I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRsaWIuaD4KCmludCBj b25zdW1lKHZvaWQpewoJRklMRSAqZnA7CgljaGFyIGlucHV0X2J1ZmZlclsx MDAwXTsKCXdoaWxlKDEpewogICAgICAgIAlmcD1mb3BlbigiL3RtcC9maWZv LmNtZCIsInIiKTsKCQlpZiAoZmdldHMoaW5wdXRfYnVmZmVyLChpbnQpKHNp emVvZihpbnB1dF9idWZmZXIpLTEpLGZwKSE9TlVMTCl7CgkJCXNsZWVwKDEp OwoJCQlwcmludGYoIlJFQUQ6ICclcydcbiIsaW5wdXRfYnVmZmVyKTsKCQl9 CiAgICAgICAgCWZjbG9zZShmcCk7Cgl9Cn0KCgppbnQgbWFpbiAoY2hhciAq KmFyZ3YpewoJY29uc3VtZSgpOwp9Cg== --0015175caae4373ce2048e26a7f3 Content-Type: text/plain; charset=us-ascii -- 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 --0015175caae4373ce2048e26a7f3--