[zeromq-dev] Unable to run Weather update server (wuserver.c) example
Pieter Hintjens
ph at imatix.com
Mon Jun 17 15:51:39 CEST 2013
Shaukat,
Sorry about this. I'd recommend changing the ipc:// endpoint to a
tcp:// one (with valid endpoints). It will work just the same. The
later examples all do this.
-Pieter
On Mon, Jun 17, 2013 at 3:10 PM, shancat <shannenlaptop at gmail.com> wrote:
> Not that I know of but I haven't gone that deep into zmq on Windows. You
> might be sacrificing performance but I don't think there's up to date
> performance information on Windows. Maybe you can do some benchmarks? If go
> to http://api.zeromq.org/3-2:zmq-bind and go to the part about transports
> you can go to each inbuilt transport doc page and read up.
>
> On Jun 17, 2013 10:44 PM, "Shaukat Mahmood Ahmad" <write at sma.im> wrote:
>
> Thanks for being supportive, one last thing if I go with C/C++ on
> Windows what else will I have to sacrifice (other than ipc://)? Can
> you guide me to a reference / contents / list of zeroMQ protocols /
> transports with supported platforms.
>
> Regards,
> SMA
>
> On Mon, Jun 17, 2013 at 5:34 AM, shancat <shannenlaptop at gmail.com> wrote:
>> It depends what you're trying to do with it but yes I would use it on
>> Windows myself. You might want to look at the C# binding
>> (https://github.com/zeromq/clrzmq) or the native C# port
>> (https://github.com/zeromq/netmq).
>>
>> On Jun 17, 2013 4:37 AM, "Shaukat Mahmood Ahmad" <write at sma.im> wrote:
>>>
>>> Thank shancat, yes finally I found it in API reference guide and in an
>>> old thread (under zmq mailing list) where some one had requested and
>>> tried to add ipc:// support for windows in 2011 but no success till
>>> 2013. As a user can you recommend zMQ on windows as I was evaluating
>>> it for a commercial software product currently running on Windows?
>>>
>>>
>>> On Sun, Jun 16, 2013 at 8:22 PM, shancat <shannenlaptop at gmail.com> wrote:
>>> > From the documentation: "The inter-process transport is currently only
>>> > implemented on operating systems that provide UNIX domain sockets." So
>>> > that's why bit doesn't work on Windows, failing with a helpful
>>> > "Protocol
>>> > not
>>> > supported" message.
>>> >
>>> > On Jun 16, 2013 10:30 PM, "Shaukat Mahmood Ahmad" <write at sma.im> wrote:
>>> >>
>>> >> I am new to zeroMQ so sorry for incomplete information in my last
>>> >> message in this thread, after debugging I have found that following
>>> >> code is failing on Windows platform with error # 135 and message
>>> >> against this error is "Protocol not supported", there is some
>>> >> advancement but I am still confused to get exact reason of failure
>>> >> (as I am unable to locate some data in help / manual).
>>> >>
>>> >> Environment:
>>> >> Windows 7 Professional 64bit
>>> >> Visual Studio 2012
>>> >> zeroMQ version 3.2.3
>>> >>
>>> >> code snippet:
>>> >>
>>> >> rc = zmq_bind (publisher, "ipc://weather.ipc"); // returns rc = -1
>>> >> err = zmq_errno(); // return err = 135
>>> >> errmsg = (char*) zmq_strerror(err); = returns error message string
>>> >> as "Protocol not supported"
>>> >>
>>> >> Can anybody tell me about ipc protocol support on Windows platform.
>>> >>
>>> >> ---------------------------------------------------------------------
>>> >> End Note:
>>> >> Now I am really confused about statements made about zeroMQ such as
>>> >> it will provide ease will reduce time to solve bigger problems, but
>>> >> the way it is presented and documented is really useless, to use this
>>> >> library either you have extra time to debug the available source and
>>> >> re-write to fit your need or simply find some other suitable library.
>>> >>
>>> >> 0/100 for zeroMQ because I have wasted my whole weekend on trying to
>>> >> understand this useless library.
>>> >>
>>> >>
>>> >>
>>> >> On Sun, Jun 16, 2013 at 2:12 PM, Shaukat Mahmood Ahmad <write at sma.im>
>>> >> wrote:
>>> >> > Hi,
>>> >> > I am unable to run Weather update server (wuserver.c) example due to
>>> >> > failed assertion at second bind request as following.
>>> >> >
>>> >> > rc = zmq_bind (publisher, "ipc://weather.ipc");
>>> >> > assert (rc == 0);
>>> >> >
>>> >> > The above assert fails as zmq_bind() returns -1.
>>> >> >
>>> >> > Can anybody help me to resolve this error.
>>> >> >
>>> >> >
>>> >> > : Complete Code
>>> >> >
>>> >> >
>>> >> > #include "zhelpers.h"
>>> >> >
>>> >> > int main ()
>>> >> > {
>>> >> > void *context = zmq_ctx_new();
>>> >> > void *publisher = zmq_socket(context, ZMQ_PUB);
>>> >> > int rc = zmq_bind(publisher, "tcp://*:5556");
>>> >> > assert (rc == 0);
>>> >> > rc = zmq_bind(publisher, "ipc://weather.ipc");
>>> >> > rc = zmq_bind (publisher, "ipc://weather.ipc");
>>> >> > assert (rc == 0);
>>> >> >
>>> >> > srand ((unsigned) time(NULL));
>>> >> >
>>> >> > while (1)
>>> >> > {
>>> >> > int zipcode, temperature, relhumidity;
>>> >> > char update[20];
>>> >> > zipcode = randof (100000);
>>> >> > temperature = randof (215) - 80;
>>> >> > relhumidity = randof (50) + 10;
>>> >> > sprintf (update, "%05d %d %d", zipcode, temperature,
>>> >> > relhumidity);
>>> >> > s_send( publisher, update);
>>> >> > }
>>> >> > zmq_close (publisher);
>>> >> > zmq_ctx_destroy (context);
>>> >> > return 0;
>>> >> > }
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