Questions tagged [socket]

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.

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27 views

A reuseable reconnecting TCP socket with Asio

I'm using (non-boost) Asio 1.18.1 and C++17. Forgive the boost tag, there wasn't a more specific one. I have a async_connect_with_retry composed asynchronous ...
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32 views

One-way chat which encode messages, this is the server side

Alright, this is one of my first real projects in python, it's basically a one-way chat where the server sends away an encoded message. The logic of it is pretty simple and I know there is some ...
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1answer
162 views

Learning Sockets in C# (.Net Framework), Suggested Improvements?

I'm just learning how to allow interconnected apps via Sockets, watched a tutorial last night and based on that this is what I've gotten: Server.cs Code: ...
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1answer
117 views

Time-Sensitive Synchronized Transfer of Data Buffer in C# to Multiple Clients

This is a C# program that is a reference implementation, it will be used to make a C version after it is stable and bug free. The programs are supposed to simulate sensor data collection and ...
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2answers
48 views

Low level tcp socket

Since I am a Unix newbie, I wanted to know if the code reflects the "unix" style and if there is something to add for it to be robust. P. S. I hope I am not overusing ...
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1answer
95 views

JSON packet transmitter

I'm not familiar with how data transmission works, but I gave my best shot trying to code a server and client-side JSON packet transmitter via Python. Essentially client.py generates random JSON ...
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65 views

FizzBuzz JSON via Unix socket (Go)

At heart, this program is just the basic "FizzBuzz" program. However, the program was pushed further, by making it a client-server via Unix Socket: Server run, and listening on a socket. ...
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2answers
65 views

Simple server to host simple website page with css

I have created a simple server that host html that has css. Please make sure if ur testing then change the paths relative to ur system in listhell.c in respond_main(..) function. The html file has to ...
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1answer
49 views

Server hosting single page site using TCP sockets in C

I have written a simple server to host my page and CSS (CSS file is 22KB). Using sockets and TCP. Can any one please review it and give feedback on how can I make my server reliable using TCP and ...
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12 views

Does using the multiple setTimeout decrease the performance of the nodejs app

Cancel the old timeout for the trip. Find the trip by Id validate it. Find the new driver not in old driver. If driver not found Try again Sent request to the new driver. Update the trip driver. Sent ...
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1answer
76 views

TCP chat room in Python3

(Previous question) I've created a server file, that keeps waiting for clients. When someone connects to the server, he can send messages to the server, and from the server it is broadcasted to all ...
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1answer
249 views

TCP chat room in Python 3

I've created a server file, that keeps waiting for clients. When someone connects to the server, he can send messages to the server, and from the server it is broadcasted to all clients. Can you ...
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1answer
112 views

Pomodoro timer daemon in C for BSD systems

I wrote a Pomodoro timer daemon for BSD systems in C (may work on Linux with -lbsd). The server uses poll(2) and sockets to communicate with the client and to ...
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2answers
140 views

Write deduplicated 9-digit numbers from concurrent clients to a log

Problem Statement: Write a server (“Application”) in Java that opens a socket and restricts input to at most 5 concurrent clients. Clients will connect to the Application and write any number of 9 ...
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1answer
35 views

Utilizing idle socket server to do meaningful thing (timeout after sleep on epoll_wait)

I write an app server that uses TCP socket on Linux. When there is no traffic (no data is sent by client, no client connect() or ...
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1answer
107 views

Java UDP port knocking authentication. Many clients at the same time

This is a student project of mine. I got 4/5 points but I suspect there's a lot of weird stuff in there. I never had a chance to hear my teacher's feedback about it and it bothers me so I figured ...
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2answers
176 views

C++ TcpServer class

I have a class Tcp_Server that implements a TCP server. This is the base class for the other types of servers available in my program. For example ...
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1answer
215 views

Secure socket programming with OpenSSL and C

Background Lately, I found OpenSSL to be difficult to learn as a beginner, while it can be implemented inside beginner-friendly projects like socket programming. ...
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22 views

What are the downsides of stateful socket NodeJS server comparing to a regular stateless REST server?

I've built this NodeJS server architecture 5 years ago. The project was in production all this time, I've been maintaining it actively, adding a lot of new features, and had no troubles with this ...
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1answer
219 views

How can I speed up the processing of the received channel socket

This currently runs with 1400+ sockets and manages data correctly and in the manner the application requires. I do have an issue with the HandleData method where ...
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1answer
56 views

Implementing classes in Javascript

I'm building a simple chatApp. The UI has just 3 interaction areas: input, submit and previous messages button. But I'm not interested in reviewing the app architecture as much as the javascript ideas ...
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0answers
88 views

Simple chat server in Python

I'm new to both Python and socket programming and figured setting up a simple chat server would be good practice. In addition to general critiques of the code, I have specific questions: What are the ...
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1answer
123 views

Feedback on send/recv functions for non blocking sockets in client side HTTP library

I'm working with TCP sockets in C, specifically only for client side HTTP(S) requests, and would like to get some feedback on my send and recv code. You can make some assumptions regarding my code, as ...
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1answer
544 views

Async tcp socket client: send multiple requests with one connection

I'm new to socket programming and c++. I have a the following method that sends an array to server and receives sum of the array, I tried to make it async. ...
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2answers
2k views

C++ sockets: Sending structs for P2P communication

Two parties communicate over a network sending back and forth up to 100 messages. Each message sent is a response to the last received message and depends on it. This means that both parties have to ...
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1answer
131 views

A Server and Client Chatroom Using Sockets and Threading

I made a chatroom with a server and client python files, using Sockets and Threading as a project. I'm interested to acquire ...
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1answer
51 views

A Program that gets text from a client and puts it into a file on a server

I recently created a program that could get information from a client, a name and some text, and then put that into a text file. From there the user can get open the text file straight from the ...
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3answers
476 views

Parse string into a struct

I'm writing a C application for the Networking course at the University. Basically it's a UDP server that can receive two commands: GET key SET key value That are ...
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1answer
323 views

Server in Python

I'm looking for a code review and code improvement for my own small server. The server accepts the requests: User Join,User Leave,User Text Notify Group Join, Group Leave, Group Notify Request Time. ...
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1answer
67 views

Finding the class to which the IP address belongs

I have tried the code for finding the class of the IP address the user inputs, and printing the network and the host bits in the IP address. Could someone please review this approach and provide ...
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112 views

Chat using async Python and sockets

I am trying out websockets using the python async framework aiohttp. Basically I have created a game which will include multiple ...
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1answer
602 views

HTTPS proxy server in Rust using the CONNECT protocol

I'm a Rust newbie. As a pet project, I decided to implement a simple multi-threaded HTTPS proxy server in Rust which uses the CONNECT protocol. I have tested the code below using my browser. ...
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1answer
80 views

Encrypted Online Rock Paper Scissors Game

I made an RPS Game with python with the Crypto and socket modules. I would like you to look at the code and tell me if anything ...
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1answer
30 views

Python Socket programming chat - getting a handle on PEP conventions

A while back I wrote a socket programmed chat in Python. This question isn't really about the program specifically, moreso on conventions of Python and my style of coding. I've only been using Python ...
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1answer
104 views

A common class for Client and Server [closed]

I have written this code to use TcpClient both from a client program and a server program. Can you review this source code? Kindly, take a close look at ...
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1answer
297 views

Basic asio framework using epoll

I created an asio framework using epoll. Full project: https://github.com/arkceajin/EpollSocket.git I wanna know is there any potential issue. Below is the core ...
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2answers
2k views

Adding a cancellation token to TcpListener.AcceptTcpClientAsync()

There is no facility in TcpListener (or for that matter Socket) to close a listening socket that is waiting for a connection without throwing an exception. After running up a test bench with 8 ...
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3answers
2k views

Correctly applying the "rule of five" to a RAII socket wrapper

I was trying to create a simple RAII wrapper with rule of 5 for a TCP POSIX socket. My aim was to try learn how to apply rule of five in different situations, but this one was somehow tricky. ...
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40 views

Log tailing socket server

Each client application would send a filepath and search term to the server. The server then takes that file path reads the file and returns any lines that contain the search term, the server then ...
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40 views

Application uniqueness and unilateral IPC on Unix

This program Detects application uniqueness, if the application is a unique/primary instance, it launches a server, otherwise a client over a Unix domain socket. Client will send a message that will ...
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0answers
55 views

one-thread blocking approach for socket tcp multi-client server

my use-case (an home task to practice abstraction, exception handling, unitests) is regarding a message-queue with small-fixed-size client requests from stdin of such: [ENQ] data (insert json ...
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0answers
147 views

Single-threaded fully asynchronous server, with a SocketSelector that dispatches events

I need a fully asynchronous single-threaded server written using .Net Core. Searched for options and, surprisingly, did't find any. So I decided to write a simple prototype. Borrowed idea from python'...
3
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1answer
167 views

Java Networking Framework

So I've just written a framework that is supposed to make it easier to create a network-based application (client-server) using the native java.net package. I was wondering if the structure of my code ...
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2answers
814 views

Server and Client programs for guessing game

I recently had to complete this for a school assignment and I really enjoyed it, but was hoping someone with experience in OO design or maybe just Java in general could have a look and point out ...
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1answer
1k views

Streaming Messages to multiple Clients

I wrote a server-client application in Python where the server sends a never-ending stream of messages to connecting clients. I was in need for such an architecture since I want to retrieve and ...
3
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1answer
124 views

Capsulation solution for byte arrays

In a part of the project, I had to implement a solution for encapsulation of byte arrays. We do use ssh and secure ports for socket connection but I was in need of an extra layer of protection against ...
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1answer
68 views

Java file transfer through sockets

I am making a program that transfers files from one client to another. Right now I am just working on sending the file to the server and then later I will work on transferring it to the other client. ...
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4answers
1k views

Unix chat server making communication between terminals possible

This Server handles clients communicating with each other. Because I was not willing to actually give every client a name, they are named by their socket's file descriptor. This is my first ...
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0answers
890 views

Some questions about a simple asynchronous socket client [closed]

I am having a hard time to come up with a simple TCP client, that should use one socket and two threads (one for sending and one for receiving). As using TPL tasks is the way asynchrony should be ...
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1answer
62 views

Send / receive wrapper for System.Net.Sockets - follow-up

I recently posted a question about improving thread and socket safety in my NetworkEndpoint class. previous post I have implemented the changes suggested in the answer I got there. When I asked for a ...

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