Tagged Questions
An endpoint of a bidirectional inter-process communication flow. This often refers to a process flow over a network connection, but by no means is limited to such.
7
votes
1answer
119 views
+100
Async TCP client/server
I'm working on a simple async TCP client server application, i'd like my network code to be reviewed. I really feel that I'm doing something wrong, especially in receiving code.
Interface for client:
...
3
votes
1answer
39 views
C++ Syncronous Poll Wrapper v2
I recently asked for some feedback on my design for a syncronous wrapper around linux sockets and poll
Based on the feedback, I created a new (hopefully more idiomatic) design.
socket.h
...
3
votes
2answers
61 views
C++ Socket syncronous poll wrapper
Below is a simple C++ abstraction over linux sockets, and a layer of abstraction over a synchronous poll call. The goal was to exploit move semantics to allow the ...
7
votes
3answers
295 views
PlayerConnection class for Gaming Emulator
I have programmed a Gaming Emulator in C# and I have a class to handle all the connection side of things for the player, here we continuously listen for packets (each packet has a ID like a number, ...
2
votes
2answers
41 views
Termbin.com clone (commandline pastebin)
For fun I decided to write a 'real' Haskell program. The intention of the program is that it listens on a socket on a given port for input. The client can send some raw text on it and the server ...
4
votes
1answer
59 views
Custom Python 'Server Status Checker'
I've written a home-grown solution for checking the status of my servers. This is both an exercise for me in learning further about Python, but it's also critical to status-checking critical things ...
1
vote
1answer
41 views
TCP client library using Winsock WSAEventSelect in C++ - Take 2
This is my second take on creating a tcp client C++ class. The class declaration is general but the implementation is Windows only at this stage and uses the Microsoft Winsock WSAEventSelect model.
...
3
votes
1answer
58 views
TCP server implementation in .NET
I wrote a couple programs in the past that use VB6's Winsock to achieve TCP communications, but still I'm kinda new to socket programming in .NET.
I needed the same functionality of the Winsock to ...
4
votes
1answer
30 views
SOXXY: a daemon stated IRC client project
This script is basically a proxy service; except it doesn't require an active client connection. In fact it expects the client connection to connect before, and disconnect after every transaction. ...
3
votes
1answer
58 views
TCP client library using Winsock WSAEventSelect in C++
One way to write a client which uses a specific protocol, eg http like in this case, is to create a base class with the basic socket handling functionality with virtual functions which can be ...
0
votes
2answers
63 views
C++ Socket Part-4
In my ongoing attempts to become a better blog writer I have some written some more code that needs reviewing.
Full Source: https://github.com/Loki-Astari/Examples/tree/master/Version4
First Article: ...
5
votes
2answers
81 views
C++ Socket Part-3
In my ongoing attempts to become a better blog writer I have some written some more code that needs reviewing.
Full Source: https://github.com/Loki-Astari/Examples/tree/master/Version3
First Article: ...
1
vote
1answer
61 views
C++ Socket Part-2
In my ongoing attempts to become a better blog writer I have some written some more code that needs reviewing.
Full Source: https://github.com/Loki-Astari/Examples/tree/master/Version2
First Article: ...
4
votes
4answers
629 views
C Socket Part-1
In my ongoing attempts to become a better blog writer I have some written some more code that needs reviewing.
Full Source: https://github.com/Loki-Astari/Examples/tree/master/Version1
First Article: ...
3
votes
1answer
45 views
A socket server that receives strings and prints them
Summary: Is my server handling every error and corner case possible? If not, what did I miss?
Details
I'm trying to write the most basic socket server I can, so I can learn TCP and the pitfalls of ...
2
votes
1answer
72 views
Protocol to parse packets
I coded this simple protocol but I'm sure that it can be better, this is the process:
Reads incoming data
Waits until payload size can be read
Reads the full message
Checks if there are mixed ...
3
votes
0answers
42 views
Event-driven UDP listener wrapper
I wrote this wrapper around the UdpClient,using events for new datagrams:
...
0
votes
0answers
43 views
Multithreaded client socket
This is my first time working with networks and multithreading in C, and would like to know how to make improvements.
I wanted to make a client program that handles reading and writing to the server ...
3
votes
1answer
128 views
Chat server implemented using Java NIO
I am learning Java's NIO and as an exercise, I have implemented a simple chat server. I would like to ask if I am using NIO's features in the correct way.
...
-1
votes
1answer
163 views
async tcp server using async/await
Here is an async Tcp server using async/await I have written. I would be very appreciate if anyone can help to improve my code. Thank you!
...
3
votes
2answers
76 views
C++ Version of a Client/Server application
Starting to write an article about Socket Programing.
So I need a simple C++ version of a client/server app.
So here it is for review (Also on github)
A linked question is the C version
Makefile
<...
4
votes
1answer
67 views
C Version of a Client/Server application
Starting to write an article about Socket Programing.
So I need a simple C version of a client/server app.
So here it is for review (Also on github)
A linked question is the C++ version
MakeFile
<...
2
votes
2answers
84 views
Server socket “wrap” functions
This is a small socket library I made to avoid complicated C boilerplate code and several #includes for connecting sockets, bind, listening etc.
Please note that <...
5
votes
1answer
225 views
Finding local C# servers on a Java client using UDP and reactive extensions
This program uses UDP broadcast to find app servers on the local network. When a server receives a client broadcast, it sends a port (integer) to the client which will later be used to create a TCP ...
4
votes
1answer
72 views
Java NIO server Selector loop
I have a server that uses Java NIO in non-blocking mode. Right now I'm using a single thread for the selector, and four worker threads to process the bytes after ...
3
votes
1answer
244 views
UDP Server Design and Performance
What I'm doing
I am writing a server to work as my games backend. The server is being written in C# using UDP as the protocol, while the game is in C++. The biggest thing I've been focusing on was ...
2
votes
0answers
70 views
Android app that listens for commands over a socket
I've just begun programming Java and I'm working on the following code that deals with socket-based communications. Basically it connects to a client on port 8888:
Gist of code
...
4
votes
0answers
97 views
A full-duplex connection to an IRC server
This connection class can be used, through composition, to make IRC clients for different kinds of IRC services.
...
3
votes
1answer
148 views
GPSD socket connection and decoding JSON into Python dictionaries
GPS3 is a python 2.7-3.5 interface to GPSD.
I've stripped back everything to two classes.
...
12
votes
3answers
4k views
Replacing Skype, reinventing the chat client
I'm creating a chat client and chat server after a several month programming hiatus. The goal is to make one with features I want but it's also a learning project. Although it's mostly because I'm ...
4
votes
3answers
75 views
Python HTTP Server
This is one of my first times writing Python. I'm most curious about style and whether while 1: x,y = socket.accept() is an acceptable way to wait for new ...
2
votes
1answer
38 views
Testing a socket-based application
Summary: How can I best write tests that override socket-based communication for a library, capturing what is sent over the socket, and simulating responses based on what is sent?
Details
I'm adding ...
4
votes
1answer
91 views
Loop through List multi-threading to ping hostnames
I am new to Multi-threading. I have had a go at writing some code that loops through an ArrayList, gets a hostname and then pings the hostname. If the hostname is ...
2
votes
1answer
238 views
Reading and Writing Messages from a Socket
This is code from my android client which communicates over wifi to a small server program (not coded in java). This is my first time playing around with sockets, so I'm sure there are lots of little ...
1
vote
2answers
40 views
Program to let any user run a command
I have a script which can only be run by one specific user on a system. I need to let all users on the system have access to run that script and see the output. But there must never be more than one ...
1
vote
1answer
71 views
Server client for distributed system
This is the code I am using for a distributed system. The code will be used to allow the server to send parts of a (really big) document which will be processed by the connected clients. Please tell ...
8
votes
2answers
247 views
Command line IRC client
I made this IRC client ages ago in Python, and thought I'd revisit it for Python 3.5 (I'd like to play with asyncio). Before I start, I'd like to have an overall design review about this.
Known ...
1
vote
1answer
27 views
Socket.ReadPacketASync
I'm working with TCP Sockets and I've build a simple packet struct that turns it into a datagram protocol. I've created a class which returns "promise" Tasks for Packets. Packets are very simple, they ...
1
vote
2answers
43 views
Find available ports on localhost
I'm writing code to find the available ports on 127.0.0.1. I'd like it to be faster, but it's functional now.
...
7
votes
1answer
140 views
Server-side of a chat application
I have written a server-side and the client-side of a chat application. I would like to improve it and I am unsure about my server construct and have absolutely no idea if there is a better way to do ...
0
votes
1answer
58 views
Server / client desynchronisation of messages [closed]
I'm trying to build a game where a client gets to play against a server in a game of Tic Tac Toe. I've built the game and followed a somehow structured design of how the game is supposed to happen, ...
1
vote
0answers
66 views
ByteBuffer Performance with Java NIO2 AsynchronousChannelGroup.withFixedThreadPool
I have a socket which will be receiving more than 100 TPS, so I need the reading to be as fast as possible. In this socket, I read the info I need to build a String and check if it matches a regex. I ...
2
votes
2answers
221 views
Simple TCP client-server solution
I have implemented a simple client-server solution using Java sockets and useful classes from java.util.concurrent.
The communication protocol is rather simple:
...
2
votes
0answers
53 views
N Processing connect to a single process: Socket Programming
The idea of my program is to use pthreads, semaphores, posix shared
memory, and sockets to create an environment where N processes
(that we will refer to as the children) can connect to a single
...
1
vote
1answer
224 views
ISO8583 encoding data fields
I just want to confirm that my ISO8583 format is correct.
Example:
For the data field 35, the length of the data is 36, so I put 36 before the 4842. Then all the data is inserted in a string (...
-1
votes
1answer
90 views
Server listening for program sockets
Essentially I have a server that will be listening for sockets in other programs seeking a connection:
...
1
vote
1answer
35 views
Handling incoming socket data
Below I have some code that I use to handle incoming socket data, this is not full thing but its the part I am worried about, is there any way to improve this?
...
3
votes
1answer
83 views
1
vote
1answer
378 views
Python TCP echo server
The below code is a simple TCP echo server. The folks using it claim "it is going down every now and again". Any thoughts on how this could be improved would be really appreciated, particularly if ...
2
votes
1answer
95 views
node.js game CPU usage
My friend and I are making a node.js game, and we have been testing CPU. After profiling, it was determined that this process called zlib is sucking most of the CPU/RAM.
3 clients connected to a game ...
