Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Subject: RE: Strange fork() behaviour under cygwin v1.3.1 Date: Tue, 22 May 2001 10:11:45 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-ID: X-MS-Has-Attach: content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.0.4417.0 X-MS-TNEF-Correlator: Thread-Topic: Strange fork() behaviour under cygwin v1.3.1 Thread-Index: AcDiUjsNEm0ETxglRe6oSdw1eSd8OwAANgLA From: "Robert Collins" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id UAA14694 > -----Original Message----- > From: Christopher Faylor [mailto:cgf@redhat.com] > On Tue, May 22, 2001 at 09:56:01AM +1000, Robert Collins wrote: > >> -----Original Message----- > >> From: Andrew de Quincey [mailto:andrew@orbital.co.uk] > >> Hi, I've been playing with the jabber server under win32... > >> and I've run > >> into a slight problem. The following program illustrates it: > >> > >> +++++++++++++++++++++++++++++++++++++++++++++++++ > >> #include > > > >Whats ? If it's the GNU portable threads library, > and it's using > >a native thread library instead of 100% emulated threads, > make sure its > >using pthreads, not win32 threads. (Explanation: Cygwin is > ignorant of > >direct win32 thread calls you might make, but it knows about > pthreads). > > That's not entirely true. Cygwin should be aware of the fact that the > fork is running in a thread and should duplicate the thread state > correctly. > > The end result will be a child process with a main thread > which is a copy > of the thread that called fork in the parent. Then we're looking at a bug in cygwin w.r.t. pth. As I cannot look at the pth source without being unable to contribute to cygwin's thread code anymore.. someone else will have to debug this. Rob > cgf > > -- > Want to unsubscribe from this list? > Check out: http://cygwin.com/ml/#unsubscribe-simple > > -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple