Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sourceware.cygnus.com Delivered-To: mailing list cygwin@sourceware.cygnus.com From: Chris Faylor Date: Fri, 24 Sep 1999 07:42:57 -0400 To: "J.A. Bezemer" Cc: cygwin@sourceware.cygnus.com Subject: Re: B20.1 & Win95 fork/socket bug, or Why Rsync Doesn't Work Message-ID: <19990924074257.A740@cygnus.com> Reply-To: cygwin@sourceware.cygnus.com Mail-Followup-To: "J.A. Bezemer" , cygwin@sourceware.cygnus.com References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.6i In-Reply-To: ; from J.A. Bezemer on Fri, Sep 24, 1999 at 01:26:04PM +0200 On Fri, Sep 24, 1999 at 01:26:04PM +0200, J.A. Bezemer wrote: >I tried to compile/run rsync (sources from >http://www.student.uni-koeln.de/cygwin/Distribution/Source/rsync/) under >Win95/Cygwin B20.1. Compiles allright, but doesn't run. Under 98 it runs >perfectly well, so I suspect this problem is somewhere in Win95. It would be >very nice if cygwin could do a workaround. Patches gratefully accepted. -Chris Faylor -Win32 Manager -Cygnus Solutions >The problem is this: in do_recv() in rsync's main.c there's this structure: > > f_in is filedescriptor of a socket connected to the rsync server > > fork > child does read(f_in) > > parent does write(f_in) > >Parent's write() is okay, but childs read() doesn't receive anything, and the >child process just waits forever. > >I don't know if this affects only sockets, or all filedescriptors. > >In the mean time, for my specific situation I could remove the fork >completely, and simply run the child after the parent. This works >perfectly. > >I don't have time to go into more detail, but just ask if you need to know >more. In case you're interested, My hacked version of rsync is at >http://panic.et.tudelft.nl/~costar/pseudo-image-kit ("Windows version"). > >And BTW, set CYGWIN=binmode, otherwise rsync goes all wrong... > >Regards, > Anne Bezemer -- Want to unsubscribe from this list? Send a message to cygwin-unsubscribe@sourceware.cygnus.com