A native .NET library for ZeroMQ messaging.
NetMQ is a 100% C# implementation of ZeroMQ for the .NET platform.
It provides a low overhead messaging solution for high performance applications over a variety of transports.
Questions tagged [netmq]
163 questions
3
votes
2 answers
Up-to-date example of NetMQ multithreading
I am trying to create a single server/multiple clients NetMQ test program (I believe this should use the Router-Dealer pattern) which would allow the server to process unique client requests using workers on separate threads (and reply to each…
Lou
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3
votes
1 answer
Publish message with PublisherSocket in C# UWP does not received in python
I'm trying to pass messages with NetMQ in C# UWP to python.
The python acts as Subscriber, and the C# as Publisher.
When I use C# .Net Core, I can see messages get to the python subscriber, but when I use C# UWP, nothing happens, though the code is…
Izik
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3
votes
0 answers
Connection not working from Android to UWP on desktop - ZeroMq (NetMq)
I tried some examples of ZMQ on C++,C# and Python. I am trying to have Request-Reply pattern to connect Android device to PC running UWP with Xamarin forms.
Below is the Requestor code:
public void HelloWorld()
{
var timer = new Timer(60000);
…
Morse
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3
votes
1 answer
Cannot get ReadyReceive pub-sub to work using NetMQ 4.x
I created 2 simple C# Console Projects (.net 4.5.2), added the v4.0.0.1 NetMQ Nuget package to each, loaded each program up into separate Visual Studio 2017 Community Editions, put a breakpoint on the 1 line contained within the OnReceiveReady…
SteveH
- 113
- 8
3
votes
1 answer
How to resolve 'NetMQ.AddressAlreadyInUseException' using ZeroMQ
Let me explain how I got this exception from such a simple code, I've used a trading program called cAlgo where I tried to run a NetMQ server, apparently while stopping it, it doesn't close correctly, leaving the port unusable until I restart my…
Xavi
- 124
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- 9
3
votes
1 answer
Why does NetMQ DealerSocket on Mono send no message to server on Debian Wheezy, but does on Windows?
I have some problem with NetMQ 4.0.0.1 on Mono 4.8 on Debian Wheezy.
Where Dealer socket is not sending any message until I won't stop calling it to send new message. When I will put Thread.Sleep( 1000 ) between creating a tasks with than everything…
bzyku
- 120
- 6
3
votes
1 answer
What is the NetMQ API for receiving in a custom buffer in order to avoid creating a new byte array on each frame/message?
I have the following code:
while (!isCancellationRequested)
{
byte[] frameBytes = socket.ReceiveFrameBytes();
MyData data = new MyData();
data.Deserialize(frameBytes);
// send the data somewhere somehow...
}
What I want to do, but I…
Ceco
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3
votes
1 answer
Cannot reuse an endpoint after NetMQ socket disposal
In my application I am creating and disposing NetMQ sockets. I have noticed that I cannot bind to an endpoint for some time after the disposal of the previous socket bound to that endpoint. A minimal example:
const string endpoint =…
tearvisus
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3
votes
2 answers
NetMQ why is "SendReady" needed for Req-Rep?
I have a problem that I managed to fix... However I'm a little concerned as I don't really understand why the solution worked;
I am using NetMQ, and specifically a NetMQ poller which has a number of sockets, one of which is a REQ-REP pair.
I have a…
Squanchy
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- 10
3
votes
1 answer
Using ZeroMQ in Xamarin
I have an application composed from a server and a client.
The Server is C/C++ application, and the client is a cross-platform Xamarin application that target Windows, Android and iOS .
The Server part and the Client part communicate using ZeroMQ…
ProEns08
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3
votes
1 answer
How port allocation is done behind the scenes in zmq?
I have been looking into zmq for a while now and have implemented a simplified poc - to mimic my infrastructure design - using it (specifically using the NetMQ wrapper), with great results.
My situation is this:
In the future I am planning to run…
barakcaf
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3
votes
2 answers
Poller on RouterSocket in NetMQ
I have a RequestSocket on the client side sending requests to a server. The server must be able to handle requests in parallel so I have used a RouterSocket with a poller.
I am unsure if this is the best implementation since it uses a fair amount of…
OMGKurtNilsen
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3
votes
1 answer
Is NetMQ compatible with ZMTP 1.0?
Does anybody knows if NetMQ is compatible with ZMTP 1.0? I can't find any information about what versions is supported.
Erik Z
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3
votes
3 answers
ZeroMQ: Disappearing messages
We have a Java application which is acting as a server. Client applications (written in C#) are communicating with it using ZeroMQ. We are (mostly) following the Lazy Pirate pattern.
The server has a Router socket, implemented as follows (using…
Jamie Poole
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3
votes
2 answers
IObservable with NetMQ receive
I'm trying to write a typical stock trading program, which receives stock tickers/orders/trades from netmq, turn the streams into IObservable, and show them on a WPF frontend. I try to use async/await with NetMQ blocking ReceiveString (suppose I am…
Ralph Zhang
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