I am writing a application for SCM, and have a server created by socket.io.
so, does anybody know the socket.io client library for c language?
Maybe you'd find Cellophaneio helpful?
There are C++ libraries available, but I assume you want just pure C.
Related
Simple question. Why "porting" zmq on java and call it JeroMQ is good idea?
JeroMQ is an official project of the ZeroMQ community; it's a full port of the C++ libzmq library, supporting version 3.2.
Advantages:
Pure Java, so no need to link in C/C++ via JNI. This is extremely helpful on devices where native libraries are difficult or impossible.
100% compatible with the JZMQ API (the two projects agreed on a single API so you can import one or the other transparently).
100% compatible with the ZeroMQ wire protocol, so you can run some nodes using JeroMQ and some using the native library, and it works as expected.
Good performance, relatively close to the native library.
Disadvantages:
No PGM multicast - there is no Java version of that library yet.
Does not yet support ZeroMQ v4 functionality, including security.
JeroMQ is a pure Java implementation of ZeroMq. If your target language is Java, it's easier to get started with JeroMq since it uses a single jar file. ZeroMq (zmq), on the other hand, is written in C. You must build zmq, libzmq, and the Java language bindings, jzmq, to use it in a Java app. The JeroMq API is identical to jzmq, so starting with JeroMq and switching to jzmq later has no impact on your application with the exception of performance; zmq performs better than JeroMq.
Hope that helps,
I'm experimenting with using node.js beyond the server as a general-purpose scripting and application programming language.
One project on my TODO list would be a Windows service so I'm considering tackling it with node.js
I believe I have seen some kind of Windows API bindings for node.js but I don't know how complete or mainstream they are. (I'm willing to contribute!)
What would it take to implement a Windows service in node.js? (Trivial example appreciated.)
You should be able to do this very easily using Winser.
Try node-windows. It's similar to WinSer, but has more options.
We are building a product, which requires modbus communication (both rs-485 and TCP/IP). The code has to run on an embedded device which has Linux running on it. We have following criteria for the selecting the library that we would be using.
It has to be opensource, since we are opensource geeks.
We would give this product to our users and what their application would be we are not aware, hence it has to complete implementation of the modbus protocol.
Wide user base: What we believe is that greater the users of the code, more the stability of the code.
I came across two such libraries:
http://www.freemodbus.org
and
libmodbus
Are there any more modbus libraries. Please suggest with pros and cons
I'd suggest libmodbus, it works well and is cross platform.
http://www.libmodbus.org
I am just starting to explore these options as well. My priority is on ease of use which has led me to RModBus since it was the only one that I was able to get immediate results with. However, there is also a Python library, Pymodbus, that appears to be quite complete in implementation.
I'm sorry, I just figured out that GCC is a compiler; my answer is way off topic.
Again, I was looking for a scripting language that my noob self could be more comfortable in. It really came down to a question of language rather than the library itself. Oh, I am only using the TCP/IP stack at this time, which somewhat simplifies it as well.
I built a communication library using Protocol Buffers (protobuf-net) using Sockets (TcpListener and TcpClient) and it is working fine, but now a co-worker needs to write a library to communicate with my software using C++.
Turns out that I'm using the Serializer.NonGeneric.SerializeWithLengthPrefix and Serializer.NonGeneric.TryDeserializeWithLengthPrefix.
Are there equivalent functions in the protobuf C++ libraries? If not, anyone knows how to implement it, or have it implemented to share?
I'm not hugely familiar with the C++ API; but the length prefix itself is pretty simple if you write the data to a buffer first, especially if you use the fixed-width 32-bit encoding (rather than base-128 variable-length). See also this thread on the google-groups forum.
Environment: Win32, C++/VS2008
I'm getting into the need to make HTTP (not HTTPS) requests from the internet using a Windows Mobile phone and to save time + reinventing the wheel, wondered if anybody here might have kindly shared a simple C++ (Win32?) WinInet wrapper or similar class?
The closest I found so far using Google is on codeproject, but wondered if someone here might yet have a better implementation.
Thank you. :)
The WinInet API is the same on Windows as it is on Windows CE. And its disgustingly easy to program. Why do you need a c++ wrapper for a really simple C API before you can proceed?
If you need help with WinInet, then ask an actual question.
In the simplest case, use of WinInet would start with InternetOpen, followed by InternetOpenUrl and InternetReadFile. Making a class to wrap up access to that is really an exercise left for the reader.