[zeromq-dev] [2.1.0] Problems with lruqueue from The Guide (tm)

Steven McCoy steven.mccoy at miru.hk
Tue Dec 28 09:36:09 CET 2010


Done, issues #25-27.

-- 
Steve-o

On 27 December 2010 02:20, Pieter Hintjens <ph at imatix.com> wrote:

> Steve, can you log this in the zguide issue tracker, thanks.
> Pieter
> On 8 Dec 2010 06:04, "Steven McCoy" <steven.mccoy at miru.hk> wrote:
> > Raised on IRC, this example doesn't appear to work as expected. On Ubuntu
> > 10.10 it aborts,
> >
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Worker: HELLO
> > Client: OK
> > Client: OK
> > Client: OK
> > lruqueue: zhelpers.h:45: s_recv: Assertion `zmq_recv (socket, &message,
> 0)
> > == 0' failed.
> > Aborted
> >
> > Split the code into two programs, one multi-client, one server, then the
> > client hangs in zmq_term unless you modify the code to close each 0MQ
> socket
> > before closing the thread, i.e.
> >
> > --- lruqueue.c 2010-12-08 12:39:08.000000000 +0800
> > +++ client.c 2010-12-08 12:59:14.000000000 +0800
> > @@ -17,6 +17,8 @@
> > char *reply = s_recv (client);
> > printf ("Client: %s\n", reply);
> > free (reply);
> > +
> > + zmq_close (client);
> > return (NULL);
> > }
> >
> > Remove setting ZMQ_IDENTITY, i.e. defaulting to UUID, then the client
> never
> > sees a reply from the server,
> >
> > --- lruqueue.c 2010-12-08 12:39:08.000000000 +0800
> > +++ client.c 2010-12-08 12:59:34.000000000 +0800
> > @@ -9,7 +9,7 @@
> > static void *
> > client_thread (void *context) {
> > void *client = zmq_socket (context, ZMQ_REQ);
> > - s_set_id (client); // Makes tracing easier
> > +// s_set_id (client); // Makes tracing easier
> > zmq_connect (client, "ipc://frontend");
> >
> > // Send request, get reply
> >
> > *client:*
> > client: zhelpers.h:45: s_recv: Assertion `zmq_recv (socket, &message, 0)
> ==
> > 0' failed.
> > Aborted
> >
> > *server:*
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> > Worker: HELLO
> >
> > --
> > Steve-o
>
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>
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