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Questions tagged [tcpsocket]

246 questions
47
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3 answers

How to disconnect from tcp socket in NodeJs

I connect to socket server in NodeJs using this command: client = net.createConnection() How can I then properly disconnect from the server? I tried client.end() and even client.destroy() but when I check the connection status using netstat it…
mgamer
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receiving variable size of data over TCP sockets

I ran into a little issue with transferring data over (TCP) sockets. Small background on what I am doing: I am sending data from side A to B. Data sent can be of variable lengths, assuming max size to be of 1096 bytes. A) send(clientFd, buffer,…
brainydexter
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Possible for WebSocket client on browser to talk to TCP Socket server?

Is it possible to have a TCP Socket server running which accepts incoming connections from WebSocket clients? I have a TCP Socket server and I'd like to be able to test this in a browser. Is this possible?
jaffa
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5
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is there a Dart Equivalent of the following Aes Encryption function in java

I have set up a server that is listening for an encrypted byte array through the java function mentioned below. Earlier i was using java (android) to build my app so it was easy using the same java function but i am unable to figure out what is the…
Vaibhav Dikha
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5
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1 answer

Ruby TCPSocket: Find out how much data is available

Is there a way to find out how many bytes of data is available on an TCPSocket in Ruby? I.e. how many bytes can be ready without blocking?
panzi
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5
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Ruby: 4-bytes array to int32

There are 4 bytes read from TCPSocket (actually socket returns a string and then I call .bytes to get an array). Now they need to be converted to int32 big endian. Or may be TCPSocket has some method to read int32 immediately?
Paul
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5
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1 answer

Load balancer scalability and max #tcp ports

A load balancer will have some limit on how many tcp ports it can simultaneously use based on the platform it's running on (e.g. I read somewhere that Linux can have max 65535 tcp ports open simultaneously). This means that the balancer becomes a…
shrini1000
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WebSocket vs. WebRTC server performance at large scale (1 million connections)

I saw this question about WebSocket performance. The conclusion of this question was that: On today's systems, handling 1 million concurrent TCP connections is not an issue. We had to demonstrate several times, to some of our customers, that 1…
Moshe Simantov
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4
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1 answer

List of exceptions in socket python

What are the exceptions which generates while using functions of socket lib in Python language. I have list of exception errors, but dont know which error are for socket function. https://docs.python.org/2/library/errno.html I want to handle every…
sumit dhyani
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Ruby TCPServer sockets

Maybe I've gotten my sockets programming way mixed up, but shouldn't something like this work? srv = TCPServer.open(3333) client = srv.accept data = "" while (tmp = client.recv(10)) data += tmp end I've tried pretty much every other method of…
Markus Orrelly
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How to TCPServer receive data from http request in Ruby?

It's handy to send server response to the client by server = TCPServer.open 1234 socket = server.accept socket.puts 'data from server side' and in the client side, curl in this case curl -v localhost:1234 * Trying 127.0.0.1... connected *…
mko
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3
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Ruby TCPServer sockets shared between threads

I am currently implementing a simplistic pub/sub system in ruby using only the standard lib, where a client can subscribe to a topic for messages or publish messages to a topic, which will be sent to all subscribers. I'm using just standard…
Nick Hyland
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How to check if the tcp socket is still connected in Flutter?

I have connected to my server as follows: Socket socket = await Socket.connect('xxx', xxx) But now I want to check if the socket is still connected. It would be even better if I have a listener that tells me when the connection is broken. Thanks…
LeonardvV
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stream closed (IOError) when closing Ruby TCPSocket client

I've got a Ruby TCPSocket client that works great except when I'm trying to close it. When I call the disconnect method in my code below, I get this error: ./smartlinc.rb:70:in `start_listen': stream closed (IOError) from ./smartlinc.rb:132:in…
Scott
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How do I set TCPSocket attributes for only a method and not globally?

I'm using Rails 4.2.7 with Ruby 2.3.0. I have this code for getting a web page through a SOCKS Proxy require "resolv-replace.rb" require 'open-uri' require 'uri' require "socksify" require 'socksify/http' ... def…
Dave
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